U.S. patent application number 14/941649 was filed with the patent office on 2016-03-31 for multi-function level with a joinable end.
The applicant listed for this patent is Russel J. Borg, Michael T. Lueck. Invention is credited to Russel J. Borg, Michael T. Lueck.
Application Number | 20160091310 14/941649 |
Document ID | / |
Family ID | 46383888 |
Filed Date | 2016-03-31 |
United States Patent
Application |
20160091310 |
Kind Code |
A1 |
Lueck; Michael T. ; et
al. |
March 31, 2016 |
MULTI-FUNCTION LEVEL WITH A JOINABLE END
Abstract
An apparatus and method for measuring and marking level and
plumb is providently disclosed herein. The multi-function level
includes: modular ends that allow attachment of mating levels for
linear extension in one direction. The modular, or jointed, end
includes a structure to hold a connector or to selectively receive
a connector from another level such that only applies a load to the
jointed end and not the body of the level.
Inventors: |
Lueck; Michael T.;
(Sunnyvale, CA) ; Borg; Russel J.; (Campbell,
CA) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
Lueck; Michael T.
Borg; Russel J. |
Sunnyvale
Campbell |
CA
CA |
US
US |
|
|
Family ID: |
46383888 |
Appl. No.: |
14/941649 |
Filed: |
November 15, 2015 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
|
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13844653 |
Mar 15, 2013 |
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14941649 |
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PCT/US2011/068234 |
Dec 30, 2011 |
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13844653 |
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61429011 |
Dec 31, 2010 |
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Current U.S.
Class: |
33/381 |
Current CPC
Class: |
G01C 9/26 20130101; G01C
9/28 20130101 |
International
Class: |
G01C 9/26 20060101
G01C009/26 |
Claims
1. A level apparatus comprising: a body having a longitudinal axis
and a plurality of faces including two side faces, a top and a
bottom face, and two end faces, wherein each end face is located at
the end of the longitudinal axis, wherein a jointed end is disposed
on at least one of the plurality of faces; at least one level
indicator coupled to the body and visible on the at least one side
face of the body, the level indicator for displaying the amount of
inclination; and wherein the jointed end includes a structure to
hold a connector or to selectively receive another connector from
another level to be selectively coupled to the level apparatus in a
manner that only applies a load to the jointed end.
2. The level apparatus of claim 1 further comprising: a connector,
or a structure to receive another connector, disposed in the
jointed end of the body such that the level can be coupled to
another level; and wherein the connector, or the structure to
receive another connector, is configured to place a load on the
level in a direction collinear with the longitudinal axis of the
body.
3. The level apparatus of claim 1 wherein the connector or the
structure to receive another connector will provide a compressive
load on the end face of the level when coupled to another level, or
wherein the connector will receive a tension load when coupled to
another level.
4. The level apparatus of claim 1 wherein the body of the level,
apart from the end face, will have no load from coupling the level
to another level.
5. The level apparatus of claim 1 wherein the connector is
comprised of: a post having at least a partially threaded portion
that can be turned to increase tension on the post, wherein the
post has a first end and a second end, and wherein the post is
releasable or retractable; wherein the first end is anchored into
the level and coupled to a folding lever having a cam pivot to
provide tension on the post; and wherein the second end of the post
is capable of being anchored into a second level.
6. The level apparatus of claim 1 wherein the connector is a strap
that provides tensional force via an elastomeric material
composition or as a non-stretchable strap secured to the level by a
winch.
7. The level apparatus of claim 5 wherein the jointed end of the
body has at least one mating surface with a composite normal
vector, when coupled to another level, which is parallel or
coplanar with the longitudinal axis of the body.
8. The level apparatus of claim 1 wherein the jointed end of the
level contains at least one item from the group of: a convex
conical shape, and a concave conical shape; and wherein the concave
component is shaped to accept a convex conical shape, thereby
providing centering.
9. The level apparatus of claim 1 wherein both end faces of the
body have a jointed end for combining with another level.
10-11. (canceled)
12. A level system comprising: a plurality of levels, wherein each
of the plurality of levels has a body and a longitudinal axis along
a length of the level and has at least one jointed end capable of
being coupled to another level; means for coupling at least two of
the plurality of levels to adjustably pull the jointed ends of the
at least two of the plurality of levels together in
compression.
13. The level system of claim 12 wherein the plurality of levels
includes: a first level having at least one jointed end; a second
level having at least one jointed end; wherein the jointed end of
the first level is combinable to the jointed end of the second
level such that the longitudinal axis of the first level is
collinear with the longitudinal axis of the second level; and
wherein the means for coupling pulls the jointed end of the first
level and the jointed end of the second level together in
compression.
14-16. (canceled)
17. The level system of claim 12 wherein the plurality of levels
are coupled linearly to form a plate level for measuring plumb of a
wall.
18-83. (canceled)
84. A level apparatus comprising: a body having a longitudinal axis
and a plurality of faces including two end faces, wherein each end
face is located at an end of the longitudinal axis, wherein a
jointed end is disposed on at least one of the end faces; at least
one level indicator coupled to the body; and wherein the jointed
end includes a structure to hold a connector or to selectively
receive another connector from another level that only applies a
load to the jointed end; and a connector, or a structure to receive
another connector, disposed in the jointed end of the body such
that the level can be coupled to another level.
85. The level apparatus of claim 84 further comprising: wherein the
connector, or the structure to receive another connector, is
configured place a load on the level in a direction collinear with
the longitudinal axis of the body.
86. The level apparatus of claim 84 wherein: a first jointed end is
located on an end face; and a second jointed end is located on
another face, wherein the end face and the another face are
orthogonal to each other.
87. The level system of claim 13 further comprising: means for
tension loading a connector to join the first level and the second
level.
88. The level system of claim 13 wherein: means for aligning a
longitudinal axis of the first level with a longitudinal axis of
the second level.
89. The level system of claim 13 wherein: means for providing the
body of the level with no load when implementing the means for
coupling the at least two of the plurality of levels.
90. The level system of claim 13 wherein: means for elastically
coupling the at least two of the plurality of levels.
91. The level system of claim 13 wherein: means for aligning a top
and bottom face of the first level with a top and bottom face of
the second level.
Description
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] This application is a continuation of, and claims priority
to: i) U.S. application Ser. No. 13844653, filed Mar. 15, 2013,
entitled " MULTI-FUNCTION LEVEL WITH ADJUSTABLE POSITIONING"; ii)
PCT International Application No. PCT/US2011/068234, entitled "
MULTI-FUNCTION LEVEL," having an international filing date of Dec.
30, 2011; and iii) U.S. provisional application(s): Ser. No.
61429011 filed Dec. 31, 2010, entitled "MULTI-FUNCTION LEVEL" the
disclosures of which are incorporated by reference herein in their
entireties. The above PCT International Application was published
in the English language and has International Publication No.
WO/2012/092611 A2.
FIELD OF THE INVENTION
[0002] The present disclosure relates generally to a marking or
measuring device and more particularly to a multi-function
level.
DESCRIPTION OF THE RELATED ART
[0003] Creating level and plumb lines or surfaces is ubiquitous in
many aspects, from building and construction, to furniture, hanging
pictures, installing fence posts, etc. In other cases, an offset,
angle, or pitch, e.g., as dictated by code, is marked or measured
from level or plumb in other areas of building and construction
such as structures requiring water drainage, e.g., drains and
sewage plumbing, roads and sidewalks, roofs, etc.
[0004] Different types of jobs and applications demand different
configurations and sizes of levels, which are also known as a
carpenter's levels, a bubble level, or a spirit level, so named for
the fluid and bubble of air in the vial that provides a level or
inclination reading, e.g., a horizontal or vertical plane. For many
applications a nominal level of several feet or more in length is
adequate and easily transportable. For other applications a longer
level is more useful in order to have continuity of the level or
plumb measurement over a longer span of an object or to provide a
more accurate measurement of level or of plumb. However, a longer
level is typically more cumbersome and more easily damaged.
[0005] A level can be held by hand against a work piece or an
installation piece in order to make the level or plumb measurement.
If an object is being measured to install it level or plumb, then
the object and the level together are typically adjusted, e.g., by
shimming a cabinet or nudging a picture until level, plumb, or the
desired offset or pitch is achieved. Some applications need a level
measurement of an installation piece against a work piece, e.g.,
installing a window in a wall of a house.
[0006] In some applications, such as installing level tile, the
level is subjected to a messy or dirty environment where the level
can be exposed and covered or contaminated with the work material,
e.g., grout. Cleaning the level can be a burdensome and inefficient
use of time, but still a necessary task for maintaining the
accuracy and function of the tool.
SUMMARY OF THE INVENTION
[0007] The present disclosure of the invention provides a method
and apparatus with several embodiments that overcome the
limitations of, provide improvements to, and/or satisfy long felt
but unsatisfied needs of the prior art. Beneficially, the present
disclosure provides a multi-function tool that provides level and
plumb measurements and marking.
[0008] In particular, the multi-function level includes modular
ends that allow attachment of mating levels for linear extension in
one direction.
[0009] A first embodiment of the present disclosure provides a
level apparatus comprising a body having a longitudinal axis and
having two side faces, a top and a bottom surface, and two end
faces with each end face located at the end of the axis, wherein at
least one end face is a jointed end; at least one level indicator
coupled to, or disposed in, the body and visible on the at least
one side face of the body and/or visible on at least the top or
bottom surface; a connector, or a structure to receive another
connector, disposed in the jointed end of the body such that the
modular level can be coupled to an add-on tool or another modular
level; and wherein the connector, or the structure to receive the
connector, will place a load on the level in a direction collinear
with the axis of the body. The structure to receive the (linear)
connector is disposed in the end face, either side face or the top
or bottom face of the body.
[0010] Alternative embodiments of the connector can: be releasable
or retractable; have an adjustment to place a variable or preset
load on the level, be a post having at least a partially threaded
portion that can be turned to increase tension on the post; be
comprised of a post having a first end and a second end, wherein
the first end is anchored into the first level, and wherein the
second end of the post is coupled to a folding lever having a cam
pivot to provide tension on the post; a post wherein the first end
of the post is an adjustable nut or a non-adjustable lug; and/or be
an elastomeric strap that is removably or permanently coupled to
the body of the level In one embodiment the connector has no
threads and is of a fixed length, with a cam lever providing the
necessary variation in length to provide a variable or fixed load
on the connector to hold multiple levels together.
[0011] The level in one embodiment can include a winch coupled to
the body; and a strap coupled to the winch, wherein the strap has a
free end for insertion to another object, and wherein the winch is
capable of placing a tension load on the strap, in order to allow
the level to retain another level or an add-on tool. Alternative
embodiments of the jointed end of the body of the level can: have
at least one mating flat surface with an imaginary normal vector
that is parallel with longitudinal axis 112 of body to allow mating
levels to slide together in a direction perpendicular to
longitudinal axis 112, e.g., sideways; have a plurality of mating
flat surfaces, each with an imaginary normal vector that is
coplanar with, or parallel with, longitudinal axis 112, wherein at
least one of the plurality of mating flat surfaces forms an angle
with respect to another one of the plurality of mating flat
surfaces, or wherein the angle formed between the plurality of
mating flat surfaces on the jointed end of the first level and on
the jointed end of the second level is a 90 degree angle for square
joints or some other angle for acute or obtuse joints; have the
plurality of flat surfaces extend in a direction perpendicular to
the two side faces of the level, so that levels with grooved end
faces can slide together sideways; have at least one item from the
group of: a male, or convex, conical shape, and a female, or
concave, conical shape, wherein the female component is shaped to
accept a male conical shape, thereby providing centering function;
have one end face with one male conical shape and one female
conical shape aligned on a longitudinal axis parallel to the side
face; have a conical shape that has a blunt tip.
[0012] In other embodiments, the level apparatus has: at least one
non-jointed end, e.g., a non-jointed end on one end face and a
jointed end on the other end face; has jointed ends on both end
faces; or has non-jointed ends on both end faces. A connector is
included in the level apparatus for a capability to be combined
with other levels or tools.
[0013] An eighth embodiment of the present disclosure provides a
level system includes: a plurality of levels, wherein each of the
plurality of levels has a longitudinal axis along a length of the
level and has at least one jointed end capable of being coupled; a
connector for coupling at least two of the plurality of levels; and
wherein the connector is selectively, or adjustably, loaded under
tension in order pull the jointed ends of the at least two of the
plurality of levels together in compression.
[0014] The plurality of levels in one embodiment include: a first
level having a longitudinal axis and having at least one jointed
end; a second level having a longitudinal axis and having at least
one jointed end; wherein the jointed end of the first level is
combinable to the jointed end of the second level such that the
axis of the first level is collinear with the axis of the second
level; and wherein coupling of the first level and the second level
pulls the jointed end of the first level and the jointed end of the
second level together.
[0015] Alternative embodiments of the plurality of levels include
where: each of the plurality of levels has a first end and a second
end that are jointed ends for coupling together in series to form
continuous extensions in the level system;
[0016] The jointed end of the first level has a structure to house
the connector and wherein a jointed end of the second level
includes a receptacle to selectively accept a connector of at least
one pin. In another embodiment, the jointed end of the first level
and the jointed end of the second level have mating convex (male)
and concave (female) components for providing alignment. The male
component is a conical shape and wherein the female component is
shaped to accept a conical shape, thereby providing centering,
wherein the conical shape optionally has a blunt tip, e.g.,
flattened or rounded
[0017] Alternative embodiments of the connector include: a
selectively releasable connector to facilitate assembling and
disassembly of the plurality of levels; a post having at least a
partially threaded portion that can be turned to increase tension
on the post; a post having a first end and a second end, wherein
the first end is anchored into the first level, and wherein the
second end of the post is coupled to a folding lever having a cam
pivot to provide tension on the post; an elastomeric strap that is
selectively or permanently coupled to the first level and the
second level;
[0018] The jointed end of the first level and the joined end of the
second level both have: at least one mating surfaces that can be
flat and perpendicular to the axis of the first and second level;
or a plurality of mating flat surfaces, with one or more of those
surfaces being perpendicular to the axis of the first and second
level, and wherein at least one of the plurality of mating surfaces
forms an angle with respect to another one of the plurality of
mating surfaces, wherein the angle formed between the plurality of
mating surfaces on the jointed end of the first level and on the
jointed end of the second level is a 90 degree angle. In another
embodiment, the first level and the second level in the level
system each have at least one non-jointed end.
[0019] These and other advantages of the present disclosure will
become apparent to those of ordinary skill in the art after having
read the following detailed description of the preferred
embodiments, which are also illustrated in the various drawing
figures.
BRIEF DESCRIPTION OF THE DRAWINGS
[0020] The drawings included herewith are incorporated in and form
a part of this specification. The drawings illustrate one
embodiment of the present disclosure and, together with the
description, serve to explain the principles of the invention. It
should be understood that drawings referred to in this description
are not drawn to scale unless specifically noted like references
indicate similar elements.
[0021] FIG. 1A is an isometric view of a modular level with modular
ends, with a single receiver coupling on one end face, according to
one or more embodiments.
[0022] FIGS. 1B and 1C are a top and front view, respectively, of a
level with modular ends, with a single receiver coupling on one end
face, according to one or more embodiments.
[0023] FIGS. 1D, 1E, 1F, and 1G are a side, top, front, and bottom
view of a level with a modular end having two receiver coupling
locations with one coupling location on the end face and one on the
bottom surface, according to one or more embodiments.
[0024] FIGS. 1H, 1J, 1K, and 1L are a side, top, front, and bottom
view of a level with a modular end having three coupling locations
with one coupling location on the end face, one on the bottom
surface, and one on the side face, according to one or more
embodiments.
[0025] FIG. 1M is an isometric view of a washer seat for a
cam-operated connector post to hold two modular levels together as
a unit, according to one or more embodiments.
[0026] FIG. 1N and 1P are a top and front view of a level with
alignment cones and elastomeric retention straps to pull two mating
modular levels together, according to one or more embodiments.
[0027] FIGS. 1Q and 1R are a top and front view of a level with
alignment pins and a retention notch and dial system to pull two
mating modular levels together, according to one or more
embodiments.
[0028] FIGS. 1S and 1T are a top and front view of a level with a
strap, winch, and post retention system to pull two mating modular
levels together, according to one or more embodiments.
[0029] FIG. 1U is an isometric view of two modular levels being
aligned for being coupling together as a single level system,
according to one or more embodiments.
[0030] FIGS. 1V and 1W are side views of an assembly of two modular
levels coupled together on their end faces, with a retention post
in a loose and a tight position, respectively, according to one or
more embodiments.
[0031] FIGS. 1X, 1Y and 1Z are side views and a front view,
respectively, of a two modular level assembly coupled to form a
framing square in a plane parallel with the side faces, with an
optional offset alignment, for marking right angles and for
measuring level and plumb simultaneously, according to one or more
embodiments.
[0032] FIGS. 1AA and 1AB are a front and bottom view of an assembly
of three modular levels coupled to form a drywall square in a plane
parallel to the side faces of the modular squares, according to one
or more embodiments.
[0033] FIGS. 1AC and 1AD are a top and front view of an assembly of
three modular levels coupled to form a T-square in a plane parallel
to the bottom faces of the modular levels, for measuring level in
two perpendicular planes, according to one or more embodiments.
[0034] FIG. 2A is an isometric view of a level having a retention
system on both the side face and the top surface of the level for
securing the level to a work piece for both level and plumb
measurements, according to one or more embodiments.
[0035] FIGS. 2B and 2C is a top and side view of a level having a
side-face retention system only on the side face of the level for
retaining the level to a work piece, according to one or more
embodiments.
[0036] FIGS. 2D and 2E are two side views of a level having a top
or bottom surface retention system in an unused recessed position
and in an extended position for engaging a work piece, according to
one or more embodiments.
[0037] FIGS. 2F, 2G, and 2H are isometric views of alternative
embodiments of connectors for retaining a level to a work piece or
installation piece, according to one or more embodiments.
[0038] FIG. 3A is a side view of a level with only an angular
adjustment system using a single cam, according to one or more
embodiments.
[0039] FIG. 3B is an isometric view of a level with two angular
and/or translational adjustment systems using cams, according to
one or more embodiments.
[0040] FIG. 3C is a side view of a level with a singular angular
and/or translational adjustment system using a cam, according to
one or more embodiments.
[0041] FIG. 3D, 3E, 3F, 3G are front views, and FIG. 3H a side
view, of alternative embodiments for angular and/or translational
adjustment system for a level, according to one or more
embodiments.
[0042] FIG. 4A is an isometric view of a level with spacers coupled
to a side face for offsetting the level from a work piece for a
level measurement, according to one or more embodiments.
[0043] FIG. 4B is an isometric view of a level with spacers coupled
to a bottom face for offsetting the level from a work piece for a
plumb measurement, according to one or more embodiments.
[0044] FIG. 4C is an isometric view of a level with spacers coupled
to an angular and/or translational adjustment system, according to
one or more embodiments.
[0045] FIG. 4D and 4E are a top and front view of a level with
spacers combined with an angular and/or translational adjustment
system, a according to one or more embodiments.
[0046] FIG. 5A is an isometric view of a level with a
slip-resistant system on a side face of the level, according to one
or more embodiments.
[0047] FIGS. 5B and 5C are top and front views of a level with a
slip-resistant system on a side face of the level, according to one
or more embodiments.
[0048] FIGS. 5D and 5E are a top and front view of a level with an
alternative layout of slip-resistant system on a side face of the
level, according to one or more embodiments.
[0049] FIG. 6A is an isometric view of a level with an offset gauge
for measuring slope or pitch of a work piece, according to one or
more embodiments.
[0050] FIG. 6B is a side view of a level with an offset gauge in a
retracted position, according to one or more embodiments.
[0051] FIG. 6C is a detail view of offset gauge in enlarged view to
illustrate exemplary offset settings, according to one or more
embodiments.
[0052] FIG. 6D is a side view of a level with an engaged offset
gauge applied to a plumbing drain work piece to confirm a minimum
slope required by code, according to one or more embodiments.
[0053] FIG. 7A is an isometric view of a level with a protective
cover for contaminating work environments, according to one or more
embodiments.
[0054] FIGS. 7B and 7C are a front and side view of a level with a
protective cover, according to one or more embodiments.
[0055] FIGS. 7D is a side view of an alternative embodiment
protective cover, according to one or more embodiments.
[0056] FIG. 7E is a front view of a level with a protective cover
being utilized in a contaminated work environment of installing
tile, according to one or more embodiments.
[0057] FIG. 8A is an isometric view of a level with integrated
features of modular ends, hands-free retention, cam-adjust, pitch
gauge, anti-slip, spacer offset, and protective cover, according to
one or more embodiments.
[0058] FIGS. 8B and 8C are a top and front view, respectively, of a
level with integrated features of modular ends, hands-free
retention, cam-adjust, pitch gauge, anti-slip, spacer offset, and
protective cover, according to one or more embodiments.
[0059] FIG. 9 is a functional block diagram of a level for
measuring and marking level, plumb and offset, according to one or
more embodiments.
[0060] FIG. 10A is an isometric view of modular levels configured
as a framing square and being applied to measure level and plumb
for a pre-hung door frame installation, according to one or more
embodiments.
[0061] FIG. 10B is an isometric view of a wall installation using
modular levels configured as a modular plate level with spacer
offsets for measuring plumb, according to one or more
embodiments.
[0062] FIG. 10C is an exploded view of modular levels configured as
an elongated installation-plane level with spacer offsets and
retention connectors for measuring level for installation of two
windows in parallel on a same wall, according to one or more
embodiments.
[0063] FIG. 10D is an isometric view of modular levels configured
as a two-axis U-shaped level assembly for measuring level of a base
cabinet installation, according to one or more embodiments.
[0064] Other features of the present embodiments will be apparent
from the accompanying drawings and from the detailed description
that follows. Alpha letters I and O are intentionally omitted in
alpha numeric figures to avoid ambiguity with the use of numerals
one (1) and zero (0).
DETAILED DESCRIPTION OF THE INVENTION
[0065] Reference will now be made in detail to the preferred
embodiments of the invention. Examples of the preferred embodiment
are illustrated in the accompanying drawings. While the invention
will be described in conjunction with the preferred embodiments, it
is understood that the invention is not limited to these
embodiments. Rather, the invention is intended to cover
alternatives, modifications and equivalents, which may be included
within the spirit and scope of the invention, as defined by the
appended claims. Additionally, in the following detailed
description of the present disclosure, numerous specific details
are set forth in order to provide a thorough understanding of
embodiments of the present invention. However, it will be apparent
to one of ordinary skill in the art that the present invention may
be practiced without these specific details. In other instances,
well-known methods, procedures, components, and operations have not
been described in detail so as not to unnecessarily obscure aspects
of the present invention.
Modular Level
[0066] Referring now to FIG. 1A, a isometric view of a modular
level 100-A with modular ends 101-A and 101-B having a single
receiver coupling 125 on one end face 122, is shown according to
one or more embodiments. In particular, modular level 100-A has a
body 110 having a longitudinal axis 112 running along the longest
dimension of the level, and having two side faces 114, 116, a top
surface 130 and a bottom surface 132, and two end faces 120 and 122
each of which are located at the end of axis 112. Additionally,
modular level 100-A includes: at least one end face 120 or 122 that
is a jointed end or has a joint or joint structure; at least one
level indicator 124 coupled to, or disposed in, the body and
visible on the at least one side face 114 or 116 of the body and/or
visible on at least the top or bottom surface 130 or 132; a
connector 125, disposed in the jointed end, or modular end, 101-A
of body 110, and/or a single receiver coupling, or structure, 128
disposed in the jointed end, or modular end, 101-B of body 110 to
receive connector 125, such that the modular level 100-A can be
coupled to an add-on tool (not shown) or another modular level.
Connector 125, or the structure 128 to receive the connector, will
place a resultant composite load on level 101-A in a direction
parallel to, and optionally collinear with, the axis 112. That is,
connector 125 and structure 128 to receive connector can be located
on the centrally-located axis 112 of the body 110, or can be
located offset, but parallel to, axis 112. Structure 128 to receive
connector 125 is disposed in the end face 120 in the present
embodiment, but may be disposed in either side face 114 or 116, or
in either the top surface 130 or bottom surface 132 of body 110 in
alternative embodiments. Connector 125, when not in use, is
retracted or stowed in the body, or in some cases can be removed
from the body, such that the level is useful as a single modular
level itself, without members or joining mechanisms that would
otherwise protrude and might interfere with a basic leveling
function, or level transport and storage. Modular level 100-A can
have only one end face, or both end faces, 120 or 122 with a
jointed configuration. Body 110 of level 100-A, apart from the end
face, e.g., the main length of level 100, will have no load from
coupling level 100-A to another level or add-on tool, thus reducing
any potentially warping affect on the body or faces, especially top
and bottom faces 130 and 132, of level 100-A, and thereby ensuring
a more accurate level performance and measurement. By having a load
on level 101-A in a direction parallel to, and optionally collinear
with, the axis, the alignment of multiple levels coupled together
is collinear, and thus level and measuring functions are more
accurate and useful. This is superior over an alternative
embodiment that loads multiple collinearly assembled levels in a
direction perpendicular to the axis of the body of the levels and
thus may misalign the levels, especially if the load pushes any
part of the body of the levels apart from each other. Thus, the
present embodiment does not require an additional rail or other
long or bulky equipment in which multiple levels would be inserted,
or set, in order to retain them together as a long level
assembly.
[0067] Level indicator 124 has a vial axis parallel with axis 112
of level 101-A for measuring a level position, while optional plumb
indicator 134 has a vial axis perpendicular to axis 112, or
perpendicular to and optionally offset from axis 112, for measuring
a plumb position. Level 101-A can include additional vials, e.g.,
indicating a 45.degree. angle, and/or a rotatable vial capable of
variable angles. Any of the vials can be visible on any faces
desired, e.g., on top surface 130 and both side faces 114 and 116
by designing the vial near the top surface with scallop cuts to
allow viewing of the vial, and with clear plastic portions of body
or vial housing that are optionally flush with top surface 130 and
both side faces 114 and 116.
[0068] Referring now to FIGS. 1B and 1C, a top and front view,
respectively, of modular level 100-A with modular end faces, is
shown according to one or more embodiments. Connector 125 is
releasable and retractable, and has an adjustment to place a
variable, adjustable, or preset load on the level 100-A. In
particular, connector 125 includes a post 126 having a first end
127 and a second end 123 having at least a partially threaded
portion, e.g., to accept a nut 140, which can be turned to vary,
e.g., increase or decrease, the tension, on the connector post 126.
First end 127 is anchored into a first level, e.g., modular level
100-A, by coupling it to a folding lever 136 having a cam pivot
137, shown in a relaxed, or open, state, to provide tension on the
post when folding lever 136 is depressed. Second end 123 of
connector post 126 is capable of being anchored into a second level
(not shown) having a structure 128 to receive connector 125. In
particular, body 110 is a structure with a large cavity 129 formed
to receive a nut 140, and a structure with a narrower slot 131 to
receive the post 126 but enclose the nut 140, thereby effectively
retaining connector 125, and allowing a plurality of modular levels
to be coupled together. In lieu of nut 14, a non-threaded lug,
e.g., cylindrical, square, or other shape may be coupled to, or
integral with post 126 for use in retaining an adjoining modular
level.
[0069] While the present embodiment has jointed ends on both end
faces 120 and 122, other embodiments have a jointed end only on one
end face, and a non-jointed end on the other end face, thus
providing for only one additional modular level to be added to it,
though other modular levels may be added to the additional modular
level.
[0070] At least one mating flat surface 120 on jointed end, e.g.,
101-A and 101-B, has an imaginary normal vector that would be
coplanar or collinear with axis 112 in the present embodiment, in
order to allow mating levels to slide together in a direction
perpendicular to axis 112, e.g., sideways. Level 100-A also has a
plurality of mating flat surfaces 120-1, 120-2, 122-1, and 122-2
whose imaginary normal vector would be coplanar with axis 112,
wherein at least one of the plurality of mating flat surfaces,
e.g., 120-1 and 122-2, forms an angle with respect to another one
of the plurality of mating flat surfaces, e.g., 120 and 122,
respectively, or wherein the angle formed between the plurality of
mating flat surfaces on the jointed end of the first level and on
the jointed end of the second level is a 90 degree angle. In other
words, the plurality of flat surfaces 120, 120-1, 120-2, 122,
122-1, and 122-2 extend in a direction perpendicular to the two
side faces of the level in the current embodiment. Modular ends
101-A and 100-B have multiple faces, with offsets and angles of
intersection in order to make a stepped joint that will provide
faces against which two mating modular levels will not rotate, thus
providing rotational stability, and consequently alignment of top
and bottom surfaces across mating modular levels, to provide smooth
and contiguous level or plumb measurements or lines on a work piece
or an installation piece. Mating flat surface 120-1 makes an
approximate 45 degree angle with respect to other mating flat
surfaces 120-2 and 120, thereby providing a guiding feature for the
mating flat surfaces, e.g., 122-1 from another adjoining modular
level. An alternative embodiment to mating flat surfaces would be
the use of mating saw tooth surfaces or mating curved surfaces,
e.g., conical, cylindrical, wedge shape, or combination thereof in
any axis that would provide alignment and stability of the
assembled mating levels or add-on tools. In these embodiments,
while individual loading vectors perpendicular to mating faces may
not be collinear or parallel to the axis of the body of the level,
the resultant composite load will result in a composite loading
vector that is coplanar, collinear, or parallel to the axis of the
body, e.g., two angled vectors cancel their opposite direction
components and combine in the similar direction components. Other
embodiments can be used without a composite loading vector that is
coplanar, collinear, or parallel to the axis of the body, but the
coupling between the levels may not be as beneficial.
[0071] The load on connector 125 is a tensile, or tension, load.
The complementary and opposing load on a mating end face, similar
to 120, of another level or add-on tool with a structure, similar
to 128, to receive connector 125 is a compressive, or compression,
load. A substantial portion of body 110 receives no load from
coupling the level to another level. This promotes several benefits
such as: a substantially unloaded level, thereby avoiding warping
or buckling, while maintaining flatness, consistency, accuracy of
top surface 130, bottom surface 132, and side surfaces 114 and 116,
as well as edges 116-B and 114-B (where two planes intersect). A
variable, or adjustable, load on a connector can be used when
multiple joined levels, or add-on tools, create a very long
assembly, which requires a strong load to provide rigidity and
stability in the assembly, and thus reduce bending or distortion.
In another embodiment, a connector traverses the entire length of
the level, thus placing the entire level in compression, and
reducing bending from very long assemblies, or from excessive loads
placed on level for an installation. In another embodiment,
multiple connectors 125 with multiple mating receiver couplings, or
structures 128 can be used on ends 120 and 122, e.g., analogous to
the pins 166 and 168 of FIG. 1R hereinafter. By using multiple
connectors, located closer to the top surface 130 and the bottom
surface, bending strength of the joint is significantly improved,
thus offering improved rigidity for longer assemblies of multiple
levels, and for bearing the load of work pieces. In yet another
embodiment, mating faces 122 through 122-2 and 120-120-2 can
represent more of a dovetail arrangement, with multiple tongue in
groove instances, thus allowing multiple mating levels to slide
together sideways to form an integral joint with a tight fit or a
moderate press fit that provides alignment, as well as bending
strength, with an optional built in single or multiple connector
and receiver coupling if desired.
[0072] Referring now to FIGS. 1D, 1E, 1F, and 1G a side, top,
front, and bottom view of a level 100-F with a modular end having
two (2) coupling structures, or locations, with one coupling 128-1
located on the end face 120 and a second coupling 128-2 located on
the bottom surface 132, is shown according to one or more
embodiments. These modular ends are the female version of the
coupling, e.g., a structure to receive connector. Having multiple
coupling locations on a given modular level provides more
configurability options to adjoining modular levels or add-on
tools, in multiple Cartesian axes, e.g., 2 axes, as will be
described in subsequent figures applying modular level assemblies
to work projects. In the present embodiment, a modular end 101-A of
level 100-F only has a single connector (not shown), similar to
that of modular level 100-A.
[0073] Referring now to FIGS. 1H, 1J, 1K, and 1L a side, top,
front, and bottom view of a level 100-F with a modular end having
three (3) coupling structures, or locations, with one coupling
128-1 located on the end face, a second coupling 128-2 on the
bottom surface 132, and a third coupling 128-3 located on the side
face 114-A, which has a flat surface extending from top surface 130
to bottom surface 132, is shown according to one or more
embodiments. These modular ends are the female version of the
coupling, e.g., a structure to receive connector. Having multiple
coupling locations on a given modular level on multiple orthogonal
planes, or axes, provides more configurability options to adjoining
modular levels or add-on tools, e.g., in three Cartesian axes for
the present embodiment, as will be described in subsequent figures
applying modular level assemblies to work projects. In the present
embodiment, level 100-F will only have a single connector (not
shown), similar to modular end 101-A of modular level 100-A.
Coupling structures can be provided in any quantity of any
combination of any of top, bottom, first side, second side and end
faces, or surfaces.
[0074] Referring now to FIG. 1M an isometric view of a washer seat
assembly 150 for a cam-operated connector post to hold two modular
levels together as a unit, is shown according to one or more
embodiments. In particular, washer seat assembly 150 includes: a
wide base 152 to dissipate the load of a connector when placed
inside cavity 147 formed in body 110; a structure forming a hole
cavity 153 to accept a connector; and a cylindrical shaped seat 151
to accept and center cam 137; wherein these features work in
concert to enable one level embedding one end of a connector to
pull together a mating level with a structure to accept the other
end of the connector.
[0075] The embodiments in FIGS. 1N, 1P, 1Q, 1R, 1S, and 1T
illustrate modular ends that mate together as disclosed for FIGS.
1A through 1L. Referring now to FIG. 1N and 1P a top and front view
of a level 155 having: alignment cones 158-A and 158-B;
corresponding structures that form conical cavities 157-A and
157-B; elastomeric retention straps 160-A and 160-B; and cavities
159-A/159-B and cavities 159-C/159-D formed in body 110-N to
receive elastomeric retention straps 160-A and 160-B of given level
155, and to receive elastomeric retention straps (not shown) of
mating levels (not shown), respectively. Level 155 provides
attachment, retention, and loading means via elastomeric retention
straps 160-A through 160-D to pull two or more mating modular
levels together. One end of an elastomeric strap can be removably
or permanently coupled to the body 110-N of level 155, while a
removable end will be removably coupled from a mating level. A tab
can be built into the elastomeric strap to facilitate coupling with
a mating level, into a cavity that is located a distance greater
than the length of the elastomeric strap in order to stretch the
strap and place it in tension. In other embodiments, elastic bands
or metallic springs may be used to retain multiple levels together.
The mating nature of the cavities 159-A and 159-B and cones 158-A
and 158-B provide alignment of top surfaces, and prevent rotation
of one level to another mated level.
[0076] Level can include different arrangements and quantities,
e.g., one or more, of: a male, or convex, conical shape, and a
female, or concave, conical shape, wherein the female component is
shaped to accept a male conical shape, thereby providing centering
function; have one end face with one male conical shape and one
female conical shape aligned on a longitudinal axis parallel to the
side face; have a conical shape that has a blunt tip, e.g.,
frustoconical. One advantage to the alignment of multiple levels,
whether by flat mating surfaces, grooved surfaces, multiple faces,
or a frustoconical configuration, is the torsional rigidity about
the body axis and the stability provided, thus ensuring a flat and
coplanar top face and/or bottom face of one or more levels, which
in turn ensures an accurate level measurement on a work piece.
[0077] Referring now to FIGS. 1Q and 1R a top and front view of a
level 165 with a alignment pins 166, 168 and a holes 169, 170 and
dial system 171 to pull two mating modular levels together, is
shown according to one or more embodiments. In particular pins 166,
168 of one level will fit into holes similar to 169, 170 of a
mating level (not shown), via a slip fit or a slight friction fit.
Pin 166 includes notch 167 into which a flat tang, similar to 172
of dial 171, can be engaged by turning dial 171 from a mating level
(not shown). Dial can have a rotatable friction fit in body 110-Q
of level, or can be screw threaded into body 110-Q in order to
maintain its position when turned into a notch 167 of pin 166.
[0078] Referring now to FIGS. 1S and 1T a top and front view of a
level 175 with a strap 179, winch 177, and post 178 retention
system to pull two mating modular levels together, is shown
according to one or more embodiments. In particular, strap 179 is
coupled and wound around winch 177, which is rotatably coupled to
body 110-S. Strap 179 protrudes from window 182 formed in body
110-S to allow a free end of strap 179 to be placed through a slot,
similar to slot 181, in another object, e.g., a mating level or
tool (not shown), and then coupled via hook 180 onto post 178 of
the same level 175 to retain another object and allow a variable
tension load to be placed on the strap 179 via winch handle 176. A
dog pawl ratchet with release, known by those skilled in the art,
allows for release of strap 179. When not in use, hook 180 can be
placed on post 178 and tightened without any mating level.
[0079] Referring now to FIG. 1U an isometric view of two modular
levels 102, 103 being aligned for being coupling together as a
single level system 100-U, is shown according to one or more
embodiments. In particular, modular end 101-A2 of level 102 slides
in a direction perpendicular to side faces of both levels in order
to engage connector 125-U into structure 128-U for accepting
connector. Once mated, and aligned so top and bottom face, or
surfaces, of both levels 102, 103 align and are flush, and
optionally such that that side faces of both levels align and are
flush, then lever 136 can be pushed to engage cam 137, which
tightens connector 125 and locks both levels 102, 103 together to
act as a single contiguous level with flush top and bottom
surfaces. The jointed end of the first level pulls the jointed end
of the second level toward itself collinearly.
[0080] Referring now to FIGS. 1V and 1W side views of an assembly
100-V of two modular levels 102 and 103 coupled together on their
end faces, with a connector in a loose and a tight position,
respectively, are shown according to one or more embodiments. In
particular, levels 102 and 103 are slid together with top surfaces
130-2 and 130-1 flush, and with lever 136 in a turned down position
to allow slack 185 between connector 125 and structure 128 to
accept connector. In FIG. 1W, lever 136 is pushed into an inline
and tight position, eliminating any effective gap between levels
102, 103 and drawing connector 125 in tension per arrows 188, while
creating compression on end faces of levels 102, 103, per arrows
186.
[0081] Referring now to FIGS. 1X, 1Y and 1Z side views and a front
view, respectively, of a two modular level assembly 100-Z coupled
to form a framing square or a try-square, in an L-shape, are shown
according to one or more embodiments. In particular, FIG. 1Z
illustrates end face 120-Z of level 104 is coupled to bottom
surface 132-Z of level 105 such that side faces of both levels are
coplanar or are in parallel planes. In particular, FIG. 1X
illustrates a side face 114-X of level 105 has an offset 190-B from
side face 114-Y of level 104, thereby allowing level 105 to act as
a try-square, falling along the edge of a work piece to try the
squareness of an adjoining surface. Offset 190-B is created by
tightening connector 125 when level 104 and 105 are in an offset
position, e.g., with a side face of one level in a plane parallel
with the side face of the other level. The plurality of stepped
surfaces 120, 120-1, and 120-2 allow levels 104 and 105 to slide
together while preventing rotation, anywhere from an offset
position to a flush position, as desired by the user. In contrast,
FIG. 1Y illustrates side face 114-X of level 105 flush to side face
114-Y of level 104, thereby acting as a framing square, carpenter's
square or a rafter square, to mark a right angle, e.g., on two
adjoining beams. Either configuration can be utilized for marking
right angles or for measuring level and plumb simultaneously.
[0082] Referring now to FIGS. 1AA and 1AB a front and bottom view
of an assembly 100-AA of three modular levels 104, 105, and 106
coupled to form a drywall square, as a T-shape, in a plane parallel
to the side faces of the modular squares, is shown according to one
or more embodiments. Assembly 100-AA can be viewed as the
carpenter's square from FIG. 1Z with an additional modular level
106 added to end face 120-Y of level 105, such that the side faces
of all three levels are in the same plane or in a parallel plane,
as indicated by offset 192 in FIG. 1AB, which acts as a fence for
marking or measuring square.
[0083] Referring now to FIGS. 1AC and 1AD a top and front view of
an assembly 100-AC of three modular levels 104, 105-A, and 106
coupled to form a T-square in a plane parallel to the bottom faces
of the modular levels, for measuring level in two perpendicular
planes, is shown according to one or more embodiments. Similar to
FIG. 1AA, levels 105-A and 106 are coupled at their end faces.
However, unlike FIG. 1AA, the present embodiment couples end face
of level 104 to side face of level 105-A. Thus, level 105-A has a
side face configuration similar to that of level 100-K of FIGS.
1H-1L. Assembly 100-AC is useful for measuring level across a wide
planar surface that essentially spans multiple axes, e.g., a
countertop. A jointed structure can be located at any place on the
body of the level, e.g., it does not have to be located on the end
of the body, but rather can also be located in the middle of the
body if desired. The jointed structure refers to any means or
mating structure for connecting a level to another level or an
add-on tool, e.g., via threaded post connector and cam or its
mating structure to accept the connector, elastomeric strap or
structure to accept strap, strap with winch or structure to accept
strap, clamp, or any other of a wide range of retention means and
structures. In an alternative embodiment, only two modular levels,
e.g., 104 and 105-A, are joined to provide level measurement around
an inside or an outside corner, e.g. of a room wall, for leveling
applications such as window installation or picture hanging,
intended to be level with each other.
Retention System
[0084] Referring now to FIG. 2A an isometric view of a level 200-A
having a retention system on both the side face and the top surface
of the level for securing the level to a work piece for both level
and plumb measurements, is shown according to one or more
embodiments. Level 200-A offers a hands-free measuring and marking
of level and plumb since the level can be retained to the work
piece or the installation piece. Level apparatus 200-A includes: a
body 210 having a longitudinal axis 212 and having two side faces
214, 216 a top and a bottom surface, and two end faces with each
end face located at the end of the axis; a side face retaining
systems 201-A, 201-B, and a top or bottom face retaining system 251
in the present embodiment. Level 200-A also includes at least one
level indicator, for either level or plumb measurement, marking or
reading, that is coupled to the body and visible on at least one of
the two side faces or a top or bottom surface of the body.
[0085] Referring now to FIGS. 2B and 2C a top and side view of a
level 200-B having only side face retention connector system 201-A,
201-B located in side face 214, 216 of the level for retaining the
level to a work piece, are shown according to one or more
embodiments. Side face retention connector system 201-A, 201-B
includes structures formed in the body 210 to receive a fastener
for coupling the level to a work piece, embodiments of which
include an arced slot 214-A, 214-B and a retention hole 216-B,
216-A, respectively, located at a radius 220 from opposite corners.
In the present embodiment, fastener 219-B is inserted in retention
hole 216-B and driven into a work or installation piece to thereby
acting as a pivot point and restraining the pivot point from any
linear or angular displacement. Fastener 219-A is inserted in arced
slot 214-A and similarly driven into a work or installation piece
thereby allowing level 200-B to have independent angular
displacement 217 on right end, with a respective smaller and
dependent angular displacement 219 on left end, due to pivoting
action about pivot point, fastener 219-B.
[0086] While the present embodiment illustrates independent
pivoting on right end of level 200-B, the fastener arrangement can
be reversed to allow independent pivoting on left end of level
200-B. Fasteners 219-B, 219-A can be tightened per user's
discretion to allow a loose or a tight slippage of level 200-B
against work or installation piece. When desired level or plumb is
obtained, fasteners 219-B, 219-A can be tightened fully to prevent
movement of level 200-B against work or installation piece.
Furthermore, an additional plurality of fasteners can be inserted
into remaining arced slot 214-B and retention hole 216-A to provide
additional immobilization of level 200-B against work or
installation piece, and/or to support work pieces that might rest
upon level 200-B during their installation. In the present
embodiment, the pitch 221 of left end slotted arc 214-B and
retention hole 216-B to right end slotted arc 214-A and retention
hole 216-A is equivalent to a standard stud pitch of 16 inches.
However, in another embodiment, different modular levels can have a
different single pitch between side wall retention systems for use
in different applications, e.g., 12, 14, 24, etc. inch pitch.
Similarly, another embodiment can have multiple different pitches
on the same level, thereby allowing the choice of multiple pitches
from a single level. An combination of retention holes and slotted
arcs can be placed at any location on level, e.g., for use in a
contiguous load bearing work piece, such as a plywood wall, or a
contiguous installation piece such as a cabinet. The greater the
quantity of retention holes and/or slotted arcs the greater the
load that level can bear and the more consistent the level reading,
measurement, or marking. Side face 214-B and/or 214-A can be flush
in another embodiment, rather than countersunk as shown, either
along the entire length of level 200-B or simply in a localized
area around side face retention systems 201-A, 201-B, in order to
offer full contact against a work or installation piece, and
thereby provide a more rigid and stable load-carrying
capability.
[0087] Referring now to FIGS. 2D and 2E two side views of a level
200-D having a top or bottom surface retention system 251 in an
unused, recessed position and in an extended position for engaging
a work piece, respectively, are shown according to one or more
embodiments. In the present embodiment, retention system 251 is
oriented to allow fastener 236 to protrude from top surface 237 to
engage a work or installation piece. However, structure in body 221
forming bore 240 can have countersink to depth 239 and diameter to
accommodate head of fastener 236, from either top face 237, bottom
surface, or both surfaces to allow fastener 236 to protrude from
either bottom and/or top surfaces for full configurability.
Fastener 236 is retained in level 200-D 234 by a flat disk with
slits that engage the threads of fastener 236 to maintain screw tip
recessed from top surface 237 when not in use. Alternatively,
fastener 236 can be spring-loaded by a helical coil spring so the
fastener is automatically retractable into a recessed position so
the level may be used sans retainer, e.g., with the fastener not
protruding from either of the side faces, or at least not having
the sharp tip of the fastener protruding from a side face of the
body of the level. In yet another embodiment, fastener can be much
longer than the width of the body of the level 200-D in order to
accommodate a spacer and still be able to penetrate a work piece.
In such an application, selectively removable fasteners would help
to prevent injury or damage when self-retention system is not in
use.
[0088] FIGS. 2F, 2G, and 2H are isometric views of alternative
embodiments of connectors for retaining a level to a work piece or
installation piece, according to one or more embodiments. Referring
to FIG. 2F a suction cup 200-F having a conical cup 270 and a
retainer 272 to retain it in level, e.g., screw into retainer hole
216-A, 216-B. FIG. 2G is a push pin retainer 200-G that allows
level placement against softer materials such as soft wood,
plywood, drywall, etc. in order to retain or prevent slippage of
level. Push pin retainer 200-G includes a retainer to retain it in
level, e.g., screw into retainer hole 216-A, 216-B. FIG. 2H is a
magnet. Alternative embodiments of a connector for retaining a
level to a work or installation piece include a nail, clamp,
repositionable adhesive material, self-tapping fasteners,
quarter-turn fastener, a fastener with a wing nut, thumb screw, or
knurled knob for finger tightening, or any other device that allows
selective coupling. While top or bottom surface retention system
251 is located near the center of the length of level, alternative
embodiments can locate top or bottom face retention system, e.g.,
structures forming a hole to accept a fastener, anywhere along
level 200-D, and in another embodiment can utilize a plurality of
top or bottom surface retention systems 251.
[0089] In an alternative embodiment, retention hole 216-B, 216-A
can be created by making an oversize hole in body of level, then
installing an insert into which a fastener may be placed. An insert
can help prevent damage to the body of the level by having a
material that locally absorbs the load and damage from using a
fastener therein. Additionally, an insert can have some flexibility
built into it as well, e.g., using phenolic resin or hard rubber
captured sleeve that helps to accommodate misalignments, over
tightening, etc.
Adjustment System for Angular or Translational Positioning
[0090] Referring now to FIG. 3A an isometric view of a level 300-A
with an angular and/or translational adjustment system 301-A,
301-B, is shown according to one or more embodiments. Level 300-A
includes: a body 310; a level indicator 124 and/or a plumb
indicator 134 housed in body 310 and visible on either a side face
and/or top or bottom surface of the body; optional fasteners 308 as
inserted into angular and/or translational adjustment system 301-A,
301-B, referred to as a cam-type adjustment in the present
embodiment. Body 310 includes: a longitudinal axis; two side faces;
a top and a bottom surface; two end faces with each end face
located at the end of the axis; and a structure in the body to
receive a fastener for coupling the level to a work piece. Angular
and/or translational adjustment system 301-A, 301-B is coupled, or
retained, in the body 310, wherein the adjuster is selectively
adjustable to provide movement of level 300-A against a work piece
(not shown).
[0091] Referring now to FIG. 3B a side view of a level 300-A with
two angular and /or translational adjustment systems 301-A, 301-B
using cams, is shown according to one or more embodiments. Angular
and/or translational adjustment system, or simply adjuster, 301-A,
301-B includes a structure to receive a fastener for selectively
coupling the level to a work piece; wherein the fastener is a screw
308-A in the present embodiment, or a nail, suction cup, magnet,
clamp, etc. alternative embodiments e.g., as presented in FIGS. 2A
through 2H, to selectively couple the adjuster to the work piece.
An optional rotatable sleeve captured in adjuster 301-A, 301-B can
allow easier rotational movement of adjuster 301-A and 301-B while
adjuster 301-A, 301-B is fastened to work piece. Adjusters 301-A,
301-B are selectively adjustable and rotatably retained in body 310
to provide a plurality of degrees of freedom, e.g., a first degree
of freedom that is translational and/or a second degree of freedom
that is rotational. Translational movement 361 is the displacement
360-A and 360-B of both ends of level 300-A in the same direction,
resulting in movement perpendicular to the axis 312 of the body of
the level. Translational movement 361 is accomplished when the both
adjuster 301-A and 301-B are rotated to move both ends of level in
the same direction. The second degree of freedom is rotational or
angular movement 360-A or 360-B of level 300-A against the work
piece. Angular rotation 360-A or 360-B is accomplished by adjusting
only one adjuster 301-A or 301-B or by adjusting both adjusters
301-A and 301-B in opposite directions, e.g., to cause one end of
level to rise and the other to fall. By using a plurality of
adjusters, both ends of level 300-A can be adjusted, thereby
providing an optional pure translational movement 361 of level
300-A, e.g., either up or down, while keeping level 300-A in a
level reference position 350. Adjusters 301-A, 301-B include a
round cylinder 322 having a center body, and a retaining flange,
and wherein a structure for accepting fastener is positioned in
cylinder 322 at a point offset from the center of the cylinder in
order to provide a cam movement when cylinder 322 is turned.
Adjuster 322 can optionally be selectively coupled to a spacer, as
described in subsequent FIG. 4A, that extends beyond side face 316
in order to provide a gap between the level 300-A and a work piece,
e.g., in order to accept an installation piece to be leveled.
[0092] The structure in the body, e.g., a bore, 309-A, 309-B to
receive the fastener is aligned with the position of adjusters
301-A, 301-B, respectively, to provide additional retainment
strength for level 300-A against work piece after level 300-A is
suitably positioned using adjusters 301-A, 301-B, as described in
previous FIG. 2A.
[0093] In another embodiment, a method of adjusting level 300-A
includes: receiving a level 300-A having a body 310 with a
longitudinal axis 312, two side faces, a top and a bottom surface,
and two end faces with each end face located at the end of the axis
and having an adjuster retained in the body, wherein the adjuster
301-A or 301-B is selectively movable, or rotatable, to provide
movement of level 300-A against a work piece; placing level 300-A
against a work or installation piece; and adjusting one or more
adjuster(s) 301-A, 301-B on level 300-A in order to move level
300-A with respect to the work or installation piece in order to
obtain a desired angle, reading, offset, level position or
translated position. Adjusters 301-A, 301-B are fixedly coupled to
the work or installation piece and movably coupled to the level in
order to allow level 300-A to move with respect to the installation
or work piece.
[0094] Referring now to FIG. 3C a side view of a level 300-C with
only a single angular adjustment system 301-A using a cam, is shown
according to one or more embodiments. Fastener 308-B is inserted in
hole 309-B to provide a pivot point about which level 300-C can
exhibit only a single degree of freedom of being angularly
displaced 360-A.
[0095] Referring now to FIG. 3D, 3E, 3F, 3G front views, and to
FIG. 3H side view, of alternative embodiments for angular and /or
translational adjustment systems for a level, are shown according
to one or more embodiments. Use of only one adjuster located at an
end of a level will provide a single degree of freedom, e.g.,
angular rotation, while use of only one adjuster located near the
center of the length of the level can provide a single degree of
freedom, e.g., linear translation up and down, assuming the level
is rotationally stable. Use of two adjusters located at either end
of a level will provide two degrees of freedom, e.g., both angular
rotation and linear translation up and down. FIG. 3D illustrates a
screw adjustment system wherein a head 330 can be turned that moves
a rack 334 translatably retained in slots 336-B, 336-A in body
310-D of level 300-D. Rack 334 is coupled to work piece by at least
one fastener 308 that passes through slots 336-B, 336-A. FIG. 3E
illustrates wedge-dial adjustment system having a dial 364-A with a
wedge bottom surface that mates with a wedge top surface of a lower
dial 364-B having a fastener 308 couple it to a work through slot
366 within which shank of fastener 308 can travel as level 300-E is
traversed. FIG. 3F illustrates a wedge adjustment system 300-F
having: a wedge structure 340-B affixed to level and coupled via
fastener 308 to a work piece; a mating wedge 340-A that is movable
coupled to body 310-F of level 300-F such that lateral movement 346
of wedge 340-A in slot 342 allows movement of level 310-F due to
mechanical wedge action thereby creating angular displacement
360-A. FIGS. 3G and 3H illustrates a front and a cross-sectional
view, respectively, of transverse wheel adjustment system 300-G
including: wheel 350 rotatably disposed on shaft 352 within opening
356 of body 310-F. Wheel 350 includes a slip-resistant surface 354
that protrudes a distance 378 from side face 316 in order to
contact work or installation piece, but is compressible under load
to allow side face 316 to rest flatly against work or installation
piece. Other adjuster embodiments can include any cam, wedge, dial,
rack and pinion, screw, or any other system that provides the
translational and/or angular movement of the level for purposes of
aligning it to level, plumb, an angle, or an offset.
[0096] As an alternative to optional fasteners 308, adjustment
system 301-A and/or 301-B can utilize a non-slip backing on back
face of assembly 322 that buts against work piece or installation
piece, with rotational freedom vis-a-vis dial 320 to allow the
translational or angular adjustment while being retained against
the work piece or installation piece. An example is provided in
subsequent FIG. 8B showing back face 372 of spacer 401-A that is
coupled to the back face 370 of adjuster 301-A. In another
embodiment, adjuster 301-A, 301-B includes a 3/8 inch receptacle to
allow for a socket drive, to provide extra leverage to obtain
angular and translational adjustment of level when heavier loads,
such as a window or a set of tiles are placed on the level. A
different embodiment of angular and translation adjustment system
provides adjusters on end faces 374, 376 (not shown) for placement
of a single level between two surfaces, e.g., between two walls
such as in a shower tile installation application, where the level
can be adjusted upwards to sequentially check level of, or provide
a level surface for, rows of tiles. If multiple modular files are
joined to provide the needed width between work pieces, e.g.,
shower walls, then the ends of the composite file utilize the
adjusters, while the jointed ends between levels have connectors to
enable modular coupling of the multiple levels.
Spacer Offset System
[0097] Referring now to FIG. 4A an isometric view of a level 400-A
with spacer offset system coupled to a side face for offsetting the
level from a work piece for a plumb or level measurement, is shown
according to one or more embodiments. Level 400-A includes: a body
410 having a longitudinal axis 412 and having two side faces, a top
and a bottom surface, and two end faces with each end face located
at the end of the axis; and one or more spacers 401-A, 401-B
coupled to the body 410, wherein spacers 401-A, 401-B extend a
consistent, or same, distance beyond body 410 for consistent level
measurement, e.g., extend beyond at least one of the two side
faces, e.g., 414 or beyond the top or bottom surface, wherein the
spacer offsets the body from a work piece to avoid an obstacle on
the work piece or to accommodate an installation piece between
level 400-A and work piece. Spacers can extend an inconsistent
distance to compensate for a known step in a work or installation
piece. Spacers 401-A, 401-B can also be spaced apart to allow one
or more installation piece to be disposed on top of level with a
portion of the installation piece, e.g., a flange, to be placed
between the level and the work piece, such as a wall, thereby
providing a level baseline surface on which the installation piece
may rest and be supported during its installation process.
Subsequent FIG. 10C provides an example of such an installation. As
such, distance between spacers 401-A and 401-B can be fixed at a
given stud pitch, e.g., 16 or 24 inches or some other distance,
with an optional slot to allow for minor adjustments to accommodate
stud misplacement or non-traditional spacing.
[0098] Spacers 401-A, 401-B can be single spacer if sufficiently
wide and/or sufficiently attached to work piece so as to provide
stability of level, e.g., wide rectangle offset piece coupled in
multiple locations to middle portion of level and coupled to work
piece in multiple locations so as to provide clearance for
installation piece or for obstacle on work piece located on both
ends of the level. Alternatively multiple spacers having equal
offset can be coupled to body 412 to provide a stable offset from a
work piece, such as the present embodiment having a spacers located
near each end of level 400-A.
[0099] Spacer 401-A, 401-B can be permanently, selectively,
slidably or hingedly coupled to the body. By being slidably
coupled, e.g., within a slot of body 410, spacer 401-A, 401-B can
be aligned with a given work or installation piece. Removably
coupled spacer 401-A, 401-B can be retained by: a screw whether
wood or machine threads and with fastener head adapted for a driver
or for a finger tightening mechanism like wing-nut or knurled head;
detent quick release coupling; detent interference fit;
sprint-loaded tangs, suction cup, magnet, or any other selectively
removable coupling mechanism that would allow a stable coupling of
spacer and selective removal of spacer from body of level. In an
alternative embodiment spacer is hingedly coupled to level so as to
swing out of position into a recessed area of level and thus avoid
interfering with access to one or more surfaces of level during
leveling or plumbing functions. Spacer can also be retained in a
vertical and/or horizontal slot(s) in body of level, thus allowing
spacer positioning to avoid installation piece. Spacer can also be
uncoupled to level, instead relying on a fastener used for level
retention to hold spacer in place via a hole in spacer through
which fastener is placed.
[0100] Spacers 401-A, 401-B can selectively extend from a recessed
of flush position on body 410, with respect to side face 414, out
to a position that provides sufficient clearance between the level
and a work piece, such as a telescoping cylinder, spring-loaded
popup spacer, folding scissor arms, etc. Spacers 401-A, 401-B can
any shape, such as cylindrical, a square, rectangular, or any other
shape that proves a stable offset between level and work or
installation piece.
[0101] The face of spacer 401-A, 401-B that mates with or couples
to a work piece can have a removable coupling as well, such as a
push pin, clamp, repositionable adhesive, etc. in one embodiment
includes a fastener coupled to a back, or exposed, face of the
spacer, the fastener for coupling the level apparatus to a work
piece. Spacer can provide a structure through which a fastener may
be placed thereby allowing the fastener head to bear on body 410 of
level in drawing level 400-A to work piece, thereby sandwiching
spacer in compression between the two and providing a stable level
reference.
[0102] Referring now to FIG. 4B an isometric view of a level 400-B
with spacers 401-A, 401-B coupled to a bottom face 432 for
offsetting level 400-B from a work piece for a plumb measurement
using plumb vial 134, is shown according to one or more
embodiments. Spacers 401-A, 401-B have equal length, thereby
offsetting level 400-B an equal distance from a work piece,
protrude in a direction parallel to the axis formed by the plumb
vial, and have a bore through which fasteners 408 threaded through
bore with countersink 406-A, 406-B in body 410 may be placed, as
also illustrated in FIG. 2D and 2E. Countersunk bore 406-A, 406-B
can provide for fasteners 408 to be inserted from either the bottom
surface 432 or the opposite top surface. Distance between spacers
401-A and 401-B can be 8, 9, or 10 feet to accommodate wall heights
of approximately the same height, or some other distance for a
given application. The present embodiment is useful for application
as a plate level for plumbing walls for a building.
[0103] Referring now to FIG. 4C, 4D, and 4E an isometric top and
front view, respectively, of level 400-C with fasteners 308 for
side face retention to work piece coupled to spacers 401-A, 401-B,
and angular and/or translational adjustment systems 301-A, 301-B,
respectively, are shown according to one or more embodiments. Level
400-C can be a system having any combination of two or more
embodiments of the following features and functions: fasteners per
FIG. 2B and 2C for side face retention of level to work piece;
spacers per FIG. 4A for providing an offset of level from work
piece; and adjustment systems per FIGS. 3A through 3C for
adjustment the angularity and translation of the level to obtain a
desired level, plumb or pitch position for the level. Thus, a
synergy arises from combining all three independent features
together in a single level assembly.
Slip-Resistant System
[0104] Referring now to FIG. 5A, 5B and 5C an isometric view, top
and front view, respectively, of a level 500-A with a
slip-resistant system 501 on a side face 516 of the level, is shown
according to one or more embodiments. Level 500-A includes a body
510 having a longitudinal axis extending a given length and having
two side faces, a top and a bottom surface, and two end faces with
each end face located at the end of the axis; a level vial 124
and/or a plumb vial 134 coupled to body 510; and a slip-resistant
system 501 coupled to body 510. Slip resist system 501 is provided
to help retain level 500-A in a desired position without slipping,
while a user jostles to make a measurement, marking, or reading is
taken. However, slip-resistant system 501 is not excessively sticky
so as to hinder taps and nudges to help position level 500-A into
place for a level or plumb measurement, marking, or reading. Slip
resistant system 501 includes a single compressible non-slip
surface such as a pad 506, located centrally on side face 516-A,
and coupled to a base 504 which is then coupled to side face 516-A
by coupling agent 502, such as adhesive, selectively removable hook
and loop fastener, snap, detent, etc. which can be either permanent
or removably coupled for cleaning or replacement. Alternatively,
non-slip pad can be rotatably coupled to the body, e.g., via a
snap, to allow rotational movement of the level, but to resist
translational movement of the level.
[0105] Non-slip pad 506 is any compressible material , e.g., closed
cell foam, cellulose sponge, non-slip cushioning mat material, etc.
that offers slip-resistant properties against typical building
materials such as wood, plywood, painted surfaces, doors, windows,
drywall, etc. Base 504 can be any type of material such as plastic,
wood, or rubber that couples the non-slip pad to coupling agent
502. While slip-resistant system 501 has thickness 512 that extends
beyond side face 516-B in an uncompressed mode, the slip-resistant
system 501 is compressible to be flush with side face edge 516-B
given very slight load, e.g., the weight of the level itself, 16 to
24 ounces of pressure, etc. While the present embodiments show
slip-resistant system 501 applied to side faces of level, it can
also be applied to a recessed cavity (not shown) in top and/or
bottom surface as well.
[0106] Referring to FIGS. 5D and 5E a top and front view of level
500-B with an alternative layout of slip-resistant system 502 on a
side face of the level, is shown according to one or more
embodiments. A plurality of non-slip pads 520 are coupled to the
body 510, wherein the plurality of non-slip pads are positioned at
the corners of the side face 516-A. Slip resistant system 501 is
adaptable to a wide variety of sizes and locations, as desired by
user preferences for reducing slippage and providing a stable
platform from which to measure, mark, and read level and plum and
offsets.
Offset Gauge
[0107] Referring now to FIG. 6A, an isometric view of a level 600-A
with an offset gauge system 601 for measuring slope or pitch of a
work piece is shown, according to one or more embodiments. Level
apparatus 600-A includes: a body 610 having a longitudinal axis
extending a given length and having two side faces, a top and a
bottom surface, and two end faces with each end face located at the
end of the axis; a level vial 124 and/or a plumb vial 134; and an
offset gauge system 601 coupled to body 610 proximate to one of the
end faces, wherein the offset gauge extends a predetermined
distance from the bottom face 632 of the body 610 to provide a
predetermined slope or pitch normalized for the given length 606 of
the body from a distant edge 622 to the tip 608-A of offset gauge
pin 602. Alternative end 608-B has radius 611 to provide a
centering function of level on a top of a pipe or tube diameter or
other curved surface, thereby offering better stability and level
measurement.
[0108] Referring now to FIG. 6B, a side view close-up of the offset
gauge pin, or extension, 602 in a retracted position in level 600-A
is shown, according to one or more embodiments. Offset gauge system
601 includes offset pin 602 located inside a bore 609 in body 610.
Offset pin 602 has a selector 604 that screws into offset pin 602,
and that slides vertically in slot 614 of body 610 and horizontally
in slots 612-A through 612-C with an optional press fit to retain
selector 604 to selected position for different predetermined
degrees or pitches of offset. Pin 602 can have a slip or friction
fit in body 610 with a topmost horizontal slot 616 for parking the
offset pin 602 in a retracted position, e.g., recessed from face
632 to avoid interfering with typical level and plumb measurements
and readings. Pin 602 can also be spring loaded into a retracted
position, to avoid unintentional interference with normal level
operation, by locating coil spring around outer diameter of pin,
and retaining spring in a recess in body 610. Horizontal slots
612-A, 612-B, and 612-C accept selector 604 to place offset pin 602
in extended positions beyond bottom surface 632.
[0109] Referring now to FIG. 6C, a detail view of offset gauge pin
602 in enlarged view to illustrate exemplary plurality of standard
offset settings 606 is shown, according to one or more embodiments.
In particular, offset settings 606 include a 1.degree., 2.degree.,
and 3.degree. setting on the left side of pin 602 and a pitch of
"1/4/12" on right side of pin 602 for representing a typical
plumbing code minimum drain pitch requirement of 1/4 inch drop over
12 inches of run. Offset settings 606 are shown at bottom surface
632 when selector 604 is placed in horizontal slots 612-A, 612-B,
612-C, and 612-D, respectively. In an alternative embodiment,
offset gauge pin 602 and or markings on body 610 of level can
provide multiple scales of measurement, each scale applicable for a
given length of level, wherein one length is a composite length of
a given number of modular joinable levels Thus, one scale can be
for a single three-foot level, while another scale can be for a
9-foot level formed by the modular combination of three three-foot
levels, the latter for providing a longer and more accurate slope
measurement.
[0110] Referring now to FIG. 6D, a side view of level 600-A with an
engaged offset gauge applied to a plumbing drain work piece 640 to
confirm a minimum slope required by code is shown, according to one
or more embodiments. Offset gage pin 602 is positioned in slot
612-D for "1/4/12" pitch setting for plumbing code minimum drain
pitch requirement. Level 600-A Level is marked with a "PASS" zone
for middle and right portions of level vial 124 because if drain
work piece 640 has a pitch of 1/4/12 or more, then the bubble in
level vial 124 will be in the middle `level` zone, as shown in the
figure, or in the rightmost zone representing a pitch greater than
1/4/12, which would exceed the minimum pitch requirement and thus
qualify to `pass` per code.
[0111] In alternative embodiments, offset gauge can be a rod, a
flat or curved plate, or a blade extension that is selectively
extendable to be recessed in body or extend beyond bottom surface
of the level, or can be a coiled and retractable tape measure with
an optional hold button that is coupled to, or disposed inside of,
body 610; etc., all of which would have at least one, and
alternatively a plurality of extension points, to represent at
least one slope, or a plurality of slopes, pitches or angular
measurement in degrees. A pin or a flat blade on offset gauge
allows it to sit on a curved surface of plumbing pipe or other flat
or curved surfaces and yield a consistent and accurate measurement.
Alternatively, flat blade can have an edge with a sufficiently
large radius, e.g., 2 inches that would help to center it on curved
pipes up to a typical maximum diameter of 4 inches. In lieu of a
selector and slots to select offset positions, a ball and detent
mechanism can be used for preset offset values. Level can be
coupled to a work piece via one or more spring clamps, or a strap
with hook and loop fasteners, coupled to a modular end of level
600-A or coupled via a fastener in bottom face retention bore, with
an appropriate calibration of the offset measurement markings on
the offset pin.
Protective Cover
[0112] Referring now to FIGS. 7A, 7B, and 7C an isometric view,
front view, and right side view, respectively, of a level 700-A
with a protective cover 701 for contaminating work environments, is
shown according to one or more embodiments. Level apparatus 700-A
includes: a body 710 having a longitudinal axis extending a given
length and having two side faces, a top surface 730 and a bottom
surface, and two end faces with each end face located at the end of
the axis; a level bubble vial 124 and/or a plumb bubble vial 134;
and a protective cover 701 coupled to body 710, wherein level
measurements can be made with the protective cover on the level
700-A.
[0113] In the present embodiment, the top surface 730 of level
700-A of the level has structures that form retention structure,
e.g., hole 716; and wherein the flexible strip 712 includes a
plurality of tabs, or nubs, e.g., barbed fir tree fastener, or push
in feet configured nubs 714, for inserting into the holes on the
top surface of the body, in order to provide coupling of the
flexible strip to the body 710. Flexible strip 712 can also provide
protection of level 700-A from drops and bumps.
[0114] Referring now to FIGS. 7D, a side view of a level 700-D with
an alternative embodiment protective cover, is shown according to
one or more embodiments. Protective cover 701-A has a skirt 724
that pulls across top surface and into side face by a distance of
722 in order to provide a `hat` type fit over level, with optional
nubs, similar to FIG. 7A to supplement the retention of protective
cover 701-A on level 700-D. Protective cover 701-A does not cover
end faces in one embodiment so as to not interfere with the modular
assembly of multiple levels.
[0115] Alternative embodiments for protective cover 701 include: a
flexible strip; selectively removable from the body; disposable or
reusable; is coupled to the top surface of the level for resting an
installation piece on the level; flexible strip integrated tongue
that fits in groove on top surface running length of level, or
flexible strip being wider than the top surface at least for one
side face so as to provide a drip edge for the side face of the
body in order to reduce contamination of the body and other
optional functions of level such as modular ends, adjusting system,
retention system, offset gauge system, etc. described herein.
Another alternative embodiment provides a low-profile cover, with a
tab to remove it and a retainment tang coupled to body of level,
that would not interfere with level measurements and reading and
that snaps into place and that covers portions of the side face of
level over sensitive features such as the adjustment system for
angular and translational movement; connector and structure to
accept connector in modular ends; etc. Flexible strip 712 can be
removed from level 700-A and twisted and curled in order to break
off hardened contaminants from a construction job such as tile
grout, paint mortar, glue, etc.
[0116] Referring now to FIG. 7E is an installation assembly 700-E
with a front view of a level 700-A with a protective cover 701
being utilized in a contaminated work environment of installing a
plurality of tile 750, is shown according to one or more
embodiments. Tile 750 is stacked on top of level 700-A with spacers
to position tile to accept grout, wherein the grout application
causes drops, spatters, and runoff to gravitationally fall onto
level 700-A, thereby contaminating level and any specialized
functions on level. Having protective strip 701 to collect grout
contamination provides for a quick and easy cleanup by peeling
protective strip 701 from level 700-A and then twisting it to crack
off any grout, and washing it with water and mild soap will provide
a cleaned protective strip 701 that can be reinstalled on level
700-A for future use in a contaminated environment.
Integrated Function Level
[0117] Referring now to FIGS. 8A, 8B and 8C, an isometric, top, and
front view, respectively, of a level with integrated features 800-A
of: modular ends 101-A and 101-B; hands-free retention system
201-A, 201-B, 216-A, 219-B and 251; linear and translational
adjustment system 301-A, spacer offset system 401-A and 401-B;
slip-resistant system 501; offset gauge system 601; and protective
cover system 701, is shown according to one or more embodiments.
FIGS. 8A through 8C provide a compacted level with all noted
functions incorporated for purposes of illustration and maximum
utility. In actual use, level could be substantially longer with
additional spacing between features.
[0118] In particular, the present disclosure provides a
multi-function tool 800-A that provides level, plumb, and angle
measurements, marking and reading with enhanced functionality of:
1) modular ends 101-A and 101-B that allow attachment of mating
levels for linear extension or extension into any one of multiple
different planes or axes, or for attachment of , or add-on tools;
2) one or more attachment, or retention, devices 201-B, 217-B,
219-B, 216-A, 251, and 308-A to secure the level to the work piece
structure or to the installation piece in order to provide
hands-free operation for measuring level, plumb, or offset thereby
more effectively using manpower resources on a job; 3) one or more
linear and translational adjustment devices 301-A, that allow
either one end of the level to be adjusted angularly with respect
to the other end or allows the entire level to be moved in a
combination of parallel translation and/or angular offset in order
to reach a desired level, plumb, or pitch as well as a desired
location; 4) one or more spacer devices 401-A and 401-B to offset
the level from a work piece in any one of multiple sides or faces
of level 800-A; 5) one or more slip-resistant system, or non-slip
devices, 501 that allow a level to more easily be held against the
work or installation piece and adjusted without being knocked or
bumped out of position; 6) an offset system 601 to determine a
variable or preset pitch or offset of a work piece or installation
piece from level or plumb; 7) a protective cover 701 on the level
that allows accurate level measurements while protecting other
areas of the level from contamination and providing quick and easy
cleanup of the level; and any combination thereof
[0119] While level 800-A illustrates the combination of all seven
features, a level can provide any combination of any amount of
these individually disclosed functions and features to provide a
balance of functionality with product cost and application
usefulness. Thus, different level systems are possible with the
present disclosure having a combination of any two features, any
three features, any four features, any five features, any six
features, or all seven features, as ordered by a marketing plan, or
as ordered by a consumer from a customizable and flexible
manufacturing order system. Also, the body of the level can be
designed and fabricated with all the cutouts and formation but
without the hardware to enable those features; the hardware can be
added in the future for additional functionality, should it be
desired later, e.g., with an add-on upgrade kit. In another
embodiment, disclosed functions and features can be provided
modularly as add on levels of shortened or normal length that
couple to a base level used for basic level and plumb applications.
A synergy arises from combining any or all functions and features
disclosed. For example benefits from functions include: modular
level allows the extension of the level system into longer lengths
or into different axes to provide a stable, simultaneous
measurement and reading; hands-free retention operation reduces
manpower requirements for a job; linear and angular adjustment
provides a quick and easy adjustment of level without the
repetition of tapping level, having level slip, and repeating the
process; offset spacer allows level to be offset from a work piece
in order to provide room for an installation piece to be inserted
against work piece; slip-resistant system provides predictable
stiction of level to a work piece or installation piece in order to
prevent accidental slipping of level once a desired level position
is attained; offset gauge system allows for quick, accurate, and
consistent slope readings; and cover feature provides protection of
the level, which can be costly and sensitive to contamination and
damage.
Functions
[0120] Referring now to FIG. 9, a functional block diagram 900 for
advanced features in leveling and plumbing functions 950 is shown
according to one or more embodiments. One embodiment provides a
function 901-A and 901-B of extending a level modularly and
linearly in one or more coaxial directions by way of coupling a
plurality of modular levels to each other with a result of creating
a level assembly from easily transportable and storable modular
pieces that together span wide distances for contiguous level or
plumb measurements or marking. Functions 901-A and 901-B are
implemented in embodiments illustrated in FIG. 1A through 1W and
FIG. 10C.
[0121] Another embodiment provides functions 901-C and 901-D of
extending a level modularly in multiple different orthogonal planes
for measurements, marking or reading non-contiguous leveling,
plumbing, or squaring. These functions are accomplished by way of
coupling a plurality of modular levels to each other in two or more
orthogonal axes with a result of creating a level assembly from
easily transportable and storable modular pieces that together span
orthogonal planes for non-contiguous level or plumb measurements or
marking. Functions 901-C is implemented in embodiments illustrated
in FIGS. 1X through 1AD, and FIGS. 10A, 10B, and 10D.
[0122] Functions 902-A through 902-C provide embodiments of
retaining level side face, level top or bottom face, and level end
face, respectively, to a work piece or an installation piece. These
functions are accomplished by way of coupling one or more modular
levels to the work piece or installation piece with a result of
providing hands-free measuring and marking of level, plumb, and
square or any combination thereof. Function 901-C is implemented in
embodiments illustrated in FIGS. 2 A through 2H. When combined with
other functions, the retaining function 902-A and 902-B appears in
FIGS. 3A through 3F, 4B-4E, 8A-8C, and 10A-10D.
[0123] Functions 903-A and 903-B provide embodiments of adjusting
linear and angular displacement of a level, respectively, against a
work piece or an installation piece. These functions are
accomplished by way of an adjustable positioning device coupled to
both the level and to the work piece or installation piece with a
result of allowing linear and angular displacement between the two.
Functions 903-A and 903-B are implemented in embodiments
illustrated in FIGS. 3A through 3H, 4C through 4E, 8A through 8C,
and 10C.
[0124] Function 904-A and 904-B provide embodiments of offsetting
side face and bottom face, respectively, of level from work piece
or installation piece. These functions are accomplished by way of
spacers or offsets coupled to the level, and optionally coupled to
the work piece or installation piece with a result of providing
clearance for the actual installation piece or from the work piece
yet allowing leveling or plumbing functions at convenient
locations. Functions 904-A and 904-B are implemented in embodiments
illustrated in FIGS. 4A through 4E, 6A through 6E, 8A through 8C,
and 10B and 10C.
[0125] Function 905 provides an embodiment of slip resistance to
leveling, plumbing, measuring, and marking functions 950. Slip
resistance function 905 is accomplished by way of contact surfaces
with slip-resistant properties integrated on a level that interface
with an installation or work piece, e.g., by providing a higher
coefficient of static and/or dynamic friction than otherwise
provided by a level, with a result of reducing slippage and
mismarking or mismeasuring of level, plumb, or given angle.
Function 905 is implemented in embodiments illustrated in FIGS. 5A
through 5E, and 8A through 8C.
[0126] Function 906 provides an embodiment of pitch offsetting to
leveling, plumbing, measuring, reading, and marking functions 950.
Pitch offsetting function 906 is accomplished by way of a
premeasured offset device, coupled to the level, with selectively
providing a range of offsets desired per building code or personal
preference having a result of more accurate and of simplified slope
evaluation using a go/no-go reading. Function 906 is implemented in
embodiments illustrated in FIGS. 6A through 6E and FIGS. 8A through
8C.
[0127] Function 907 provides an embodiment of protection via a
protective layer for level that is accomplished by way of a
physical layer of material on level that can be removed and
cleaned. The result is a better maintained level tool with less
contamination obscuring the level or plumb vial and with less
contamination on surfaces such as the top and bottom surface that
would cause erroneous level or plumb readings, measuring, or
marking. Thus, the result is a leveling and plumbing function with
more consistent and accurate measurements, markings, and readings.
Function 907 is implemented in embodiments illustrated in FIGS. 7A
through 7E, and 8A through 8C.
[0128] Function 908 provides an embodiment of combining any of the
above functions together for use in measuring, marking or reading a
leveling and/ or plumbing and/or squaring function. Thus, any
combination of functions such as: modular assembly, retaining,
linear or angular displacement, slip resistance, pitch offsetting,
and contamination protection can be provided to result in a tool
with a synergistic effect in efficiency from use of multiple
advanced features together. For example, the use of modular levels
combined in an assembly, with offsets, retainment, and
linear/angular adjustment functions, as illustrated in FIG. 10C,
allows a contiguous level installation of multiple windows spanning
a substantial distance wherein the level is retained to the work
piece, the wall, for hands-free level measurement during
installation, wherein the level is quickly and easily adjusted to a
level reading using linear and angular adjustments, wherein the
level is offset from the work piece to allow clearance for the
installation piece, e.g., the windows, and wherein the retainment
function allows the level to support the weight of the installation
piece windows to provide a setup position for the installation
piece windows that defaults to a level position. Means for enabling
functions of FIG. 9 include the structures and methods disclosed
herein and their equivalents.
Installation Applications
[0129] Referring now to FIG. 10A an isometric view of doorframe
installation 1000-A using modular levels configured as a framing
square modular level 1010 to measure both level and plumb, is shown
according to one or more embodiments. Framing square modular level
1010 can be retained to door frame using one or more fasteners 1018
that are long enough to engage the door frame but short enough to
not engage wall frame studs, thereby allowing the use of shims 1014
to obtain the proper level and plumb of doorframe. In particular,
one fastener 1018 may be used to secure just one leg of framing
square modular level 1010, e.g., to the vertical 1012 portion of
doorframe, and let the other leg of the framing square modular
level 1010 float. Then level can first be obtained, with plumb
being obtained by eliminating any gap between vertical leg of
framing square modular level 1010. Alternatively, framing square
modular level 1010 can be secured to both vertical frame 1010 and
horizontal frame 1012 components of doorframe, but care should be
used in positioning doorframe to avoid overstressing the framing
square modular level 1010. Beneficially, following the successful
doorframe installation, framing square modular level 1010 can be
disassembled for transport and/or utilized with the same or other
functions in other applications for plumb, level, offsets, etc.
[0130] Referring now to FIG. 10B an isometric view of a wall
installation 1000-B using modular levels configured as a modular
plate level 1020 with spacer offsets 1040 and one or more fasteners
1018 for retaining modular plate level 1020 to wall 1022 to
measuring plumb, is shown according to one or more embodiments.
Wall 1022 is plumbed by securing modular plate level 1020
preferably with only a single fastener 1018-A though spacer 1040-A
on the top plate 1026 with spacer 1040-B resting against bottom
plate 1028 thereby allowing level to be retained, yet float and
avoid warping or damaging it, as the wall is moved, flexed, and
secured. Beneficially, following the successful window
installation, modular plate level 1020 can be disassembled for
transport and/or utilized with the same or other functions in other
applications for plumb, level, offsets, etc.
[0131] Referring now to FIG. 10C an exploded view of window
installation 1000-C performed using modular levels coupled together
and configured as an elongated installation-plane level assembly
1038 with spacer offsets 1040-C through 1040-G and retention
connectors 1018 for creating a level installation-plane on which
two similar windows 1030-A and 1030-B can be installed on a same
wall, is shown according to one or more embodiments. In particular,
modular level assembly combines two or more individual modular
levels together and utilizes spacers 1040-C through 1040-G to
create a gap between wall 1036 and level assembly 1038 in order to
accommodate flanges 1035-A and 1035-B of windows 1030-A and 1030-B
that will be positioned between level assembly 1038 and wall 1036,
while allowing sill 1037-A and 1037-B of windows 1030-A and 1030-B
to rest on top surface of installation-plane level assembly 1038 as
shown by dashed install lines. Fasteners install through body of
level and through spacers 1040-C through 1040-G into studs of wall
1036 and additional fasteners may optionally be installed through
retention holes in body of levels and into studs of wall 1036 to
provide additional rigidity and support in order to prevent warping
and damage to level assembly 1038 and windows 1030-A and 1030-B.
Elongated installation-plane level assembly 1038 can be used for
parallel measurement, marking, or reading of level, plumb, or
offset any parallel application, including those on intersecting
walls, e.g., where window applications occur on intersecting walls
straddling an inside corner or an outside corner. Beneficially,
following the successful window installation, installation-plane
level assembly 1038 can be disassembled for transport and/or
utilized with the same or other functions in other applications for
plumb, level, offsets, etc.
[0132] Referring now to FIG. 10D an isometric view of a base
cabinet installation 1000-D using modular levels coupled together
and configured as a two-axis U-shaped square level assembly 1050
for measuring level top surface 1052 of base cabinets 1054, is
shown according to one or more embodiments. The U-shaped level
assembly 1050 is created by coupling a plurality of modular levels,
e.g., a minimum of three levels and a total of four levels in the
present embodiment, to form a "U" shape with legs forming right
angles. In particular, U-shaped modular level assembly 1040 is
placed on top surface 1052 of base cabinets 1054 and read to
confirm level surface for subsequent countertop installation.
Optionally, fasteners (not shown) may be utilized to loosely or
rigidly affix U-shaped modular level assembly 1040 to base cabinets
1054 for stability. Shims 1014 may be utilized to then adjust
portions of base cabinet that need to be raised in order to create
a consistently flat and level top surface 1052. U-shaped modular
level assembly 1040 provides inherent stability in the U-shape,
thus providing level in multiple planes. Thus, U-shaped modular
level assembly 1040 will not fall over as would multiple unattached
independent levels placed in different areas of top surface 1052 of
base cabinets 1054. Beneficially, following successful leveling of
base cabinets 1054, U-shaped modular level assembly 1040 can be
disassembled for transport and/or utilized in other applications
for plumb, level, offsets, etc. Alternatively, modular levels may
be combined to close the U shape and make a box shape level
assembly, e.g., four modular levels combined at right angles to
each other, for inherent stability and multi-axis level, plumb, and
offset measurement, marking, and reading. The term square refers to
a ninety degree angle between members rather than an equal-sided
rectangle.
[0133] Alternative embodiments include where one or more of the
plurality of spacers, e.g., a first and second spacer, are:
permanently fastened to the first and second level selectively; are
selectively removable from the first and/or second level;
selectively positionable apart from each other by a range of
distances including standard heights of walls of a building, e.g.
via having different position attach points on the level for the
spacers, or by having slots on the level along the axis or along
other axes; have a longitudinal axis that is parallel to an axis of
a plumb vial coupled to at least one of the plurality of levels;
spaced apart from each other a distance approximately equal to a
standard height of walls of a building, e.g., eight, nine, or ten
feet; spaced apart wide enough to accommodate an installation piece
between the level system and the work piece upon which the
installation pieces will be installed; spaced apart to accommodate
a plurality an installation pieces on a single continuous and/or
level plane formed by the level system (can have additional spacers
beyond the first and second spacer);
[0134] Level can be fabricated of any suitable material, including
inorganic materials such as metal, e.g., aluminum, etc. or organic
materials such as plastic, laminate, etc. that will maintain
structural integrity and dimensional stability in different
temperatures and humidity conditions, while being robust in the
field, e.g., resist breaking and bending from falls and bumps, and
from work loads being placed upon it. Level embodiments herein can
be integrated with: digital readout of level, plumb, or angle;
laser pointer functions, etc.
[0135] The present description is applicable to a wide variety of
applications and is not limited to any particular type of
materials, measurement markings, hinge or pivot type, sizes or
geometries of surfaces other than the straightedges 10A and 10B or
the bottom surfaces 24A and 24B. Rather, the present description is
applicable to a wide variety of materials, measurement markings,
geometries, hinges and pivot types and arrangements that meet the
marking functions listed herein.
[0136] The foregoing descriptions of specific embodiments of the
present disclosure have been presented for purposes of illustration
and description. They are not intended to be exhaustive or to limit
the invention to the precise forms disclosed. Many modifications
and variations are possible in light of the above teaching. The
embodiments were chosen and described in order to best explain the
principles of the invention and its practical application, to
thereby enable others skilled in the art to best utilize the
invention and various embodiments with various modifications as are
suited to the particular use contemplated. It is intended that the
scope of the invention be defined by the Claims appended hereto and
their equivalents.
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