U.S. patent application number 16/945887 was filed with the patent office on 2020-11-19 for mechanism to secure the base of a pole to the lid of a flat box finisher.
The applicant listed for this patent is Anirudh Kalbag. Invention is credited to Anirudh Kalbag.
Application Number | 20200362575 16/945887 |
Document ID | / |
Family ID | 1000004991647 |
Filed Date | 2020-11-19 |
United States Patent
Application |
20200362575 |
Kind Code |
A1 |
Kalbag; Anirudh |
November 19, 2020 |
MECHANISM TO SECURE THE BASE OF A POLE TO THE LID OF A FLAT BOX
FINISHER
Abstract
A mechanism to secure the base of a pole to the lid of a flatbox
finisher is provided. The mechanism utilizes at least one spring
grasping device on the lid of the flat box finisher to grasp and
secure the base of the pole. The grasping mechanism is depressed
and grasps a generally flat rectangular edge of the base of the
pole and secures the base of the pole to the lid of the flatbox
finisher by friction. In particular, as the base having the pole of
the flatbox finisher is first slid over the grasping mechanism, the
grasping mechanism is first pushed downward. After the base slides
over the grasping mechanism, the grasping mechanism springs back
upward and locks the base of the pole into place on the lid of the
flatbox finisher. Wing nuts may then be used to further secure the
base of the pole to the lid of the flatbox finisher.
Inventors: |
Kalbag; Anirudh;
(Westchester, IL) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
Kalbag; Anirudh |
Westchester |
IL |
US |
|
|
Family ID: |
1000004991647 |
Appl. No.: |
16/945887 |
Filed: |
August 2, 2020 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
|
|
15494862 |
Apr 24, 2017 |
10767375 |
|
|
16945887 |
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Current U.S.
Class: |
1/1 |
Current CPC
Class: |
B25G 3/38 20130101; F16B
5/0664 20130101; E04F 21/1652 20130101; E04F 21/241 20130101 |
International
Class: |
E04F 21/24 20060101
E04F021/24; B25G 3/38 20060101 B25G003/38; E04F 21/165 20060101
E04F021/165; F16B 5/06 20060101 F16B005/06 |
Claims
1) A securing mechanism for a flat box finisher comprising: a flat
box finisher housing having a top, a bottom, a front, a back, a
first side, a second side and a generally hollow interior wherein
the top of the housing is a lid; a support base having a front, a
back, a top surface, a bottom surface, a first side, a second side,
and an opening on the top surface extending to the bottom surface;
wherein the support base is located on the top of the flat box
finisher housing and wherein the opening on the top surface of the
support base exposes the top of the housing of the flat box
finisher; a base unit of a handle portion wherein the base unit has
a top surface, a bottom surface, a front, a back, a first side and
a second side; and wherein a perimeter of the base unit is of
substantially the same size and shape as the opening of the support
base such that the base unit snugly fits into the opening of the
support base.
2) The securing mechanism for a flat box finisher of claim 1
wherein the support base is permanently secured to the top of the
flat box finisher.
3) The securing mechanism for a flat box finisher of claim 1
wherein the top surface of the base unit is flush with the top
surface of the support base when the base unit is placed into the
opening of the support base during use.
4) The securing mechanism for a flat box finisher of claim 1
further comprising: a pivot pin secured to the top of the support
base wherein the pivot pin passes through a an elongated rotating
grasping mechanism.
5) The securing mechanism for a flat box finisher of claim 4
wherein the elongated rotating grasping mechanism is capable of
rotating and thus temporarily securing the base unit to the support
base in a first orientation and wherein the elongated rotating
grasping mechanism is capable of allowing the release of the base
unit from the support base in a second orientation.
6) The securing mechanism for a flat box finisher of claim 4
wherein the elongated rotating grasping mechanism is generally
flat.
7) The securing mechanism for a flat box finisher of claim 1
further comprising: a pivot pin located on the base unit wherein
the pivot pin is capable of allowing a handle portion to rotate
with respect to the base unit.
8) A securing mechanism for a flat box finisher comprising: a flat
box finisher housing having a top, a bottom, a front, a back, a
first side, a second side and a generally hollow interior wherein
the top of the housing is a lid; a cylindrical receiving mechanism
permanently secured to the top of the flat box finisher housing; a
hollow opening shaft located within the cylindrical receiving
mechanism wherein the hollow opening shaft is capable of
temporarily receiving and temporarily securing a handle pin of a
handle portion; and a knob located on the cylindrical receiving
mechanism wherein the knob has a pin which partly extends into the
hollow opening shaft in a first position and wherein the pin of the
knob temporarily locks or releases the handle pin of the handle
portion.
10) A securing mechanism for a flat box finisher of claim 8 wherein
the knob is rotatable.
11) A securing mechanism for a flat box finisher of claim 8 further
comprising: a pivot pin located on the handle portion wherein the
pivot pin is capable of allowing the handle portion to rotate with
respect to the handle pin of the handle portion.
Description
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] The following application is a divisional application of
Ser. No. 15,494,862 currently copending; the entire contents of
which are incorporated by reference.
BACKGROUND OF THE INVENTION
[0002] A system and mechanism to secure the base of a pole to the
lid of a flatbox finisher is provided. The mechanism utilizes at
least one spring grasping device on the lid of the flat box
finisher to grasp and secure the base of the pole. The grasping
mechanism is depressed and grasps a generally flat rectangular edge
of the base of the pole and secures the base of the pole to the lid
of the flatbox finisher by friction. In particular, as the base
having the pole of the flatbox finisher is first slid over the
grasping mechanism, the grasping mechanism is first pushed
downward. After the base slides over the grasping mechanism, the
grasping mechanism springs back upward and locks the base of the
pole into place on the lid of the flatbox finisher. Wing nuts may
then be used to further secure the base of the pole to the lid of
the flatbox finisher. An alternative embodiment, a knob located on
a receiving cylinder of the lid of the flat box finisher receives a
pin of the handle portion of the flat box finisher and secures the
pin (and therein the handle portion) to the flat box finisher.
[0003] Flat box finishers have been around for a long time. For
example, U.S. Pat. No. 7,318,716 to Castagnetta discloses a tool
for applying mastic to drywall, having a flexible trowelling bar
for smoothing and shaping the applied mastic. The curvature of the
trowelling bar is controlled by the rotation of a cam that is
positioned on a rigid support and that is directly coupled to the
trowelling bar through a link. Springs are positioned between the
rigid support and the trowelling bar to maintain tension on the
link during rotation of the cam. The springs exert pressure on the
trowelling bar through plungers having rounded feet that maintain
consistent contact with the trowelling bar as the curvature of the
trowelling bar changes.
[0004] U.S. Pat. No. 6,146,039 to Pool discloses a mud box having a
bottom surface with an outlet orifice, sides, a cover pivotally
attached along one edge, and a handle attached to the cover for
positioning the box on a surface and applying extruding pressure to
the cover for ejecting material through the orifice. A spring
assembly is attached to the box and connected to apply extruding
pressure to the cover. A primary lock is coupled to the spring
assembly and the box, the primary lock has a locked position in
which the spring assembly is prevented from applying extruding
pressure to the cover and an unlocked position in which the spring
assembly applies extruding pressure to the cover. The primary lock
is activated by a wheel assembly which moves it into the locked
position when the box and wheel assembly are disengaged from a
surface and which moves it into the unlocked position when the
wheel assembly and box are engaged with a surface.
[0005] U.S. Pat. No. 5,143,264 to MacMillan discloses a flat
finishing box having attachable/detachable heads each of which have
a structural part incorporating a mouth and to which an edge
assembly and edge assembly adjustment apparatus are attached. Heads
are provided for dispensing mud in each of the three standard swath
widths, 7'', 10'' and 12'', so that any swath width can be
dispensed from one box by interchanging heads attached to the box.
The box cover is one extrusion and the bottom and back are another.
The hinged edge of the cover has a cylindrical segment along the
edge which fits into a partial cylindrical groove in the back,
providing a leak proof hinge. Channels are provided to enhance mud
flow from portions of the box beyond the width of the mouth of the
head being used to the portion within the mouth width.
[0006] However, these existing flat box finishers fail to provide a
flat box finisher which has a unique grasping mechanism capable of
quickly securing and releasing the base of a pole of the flatbox
finisher which is easy to use and efficient as in the present
device. A need, therefore, exists for an improved flatbox finisher
with a securing mechanism for easily and quickly grasping and
securing the base of a pole of the flatbox finisher.
SUMMARY OF THE INVENTION
[0007] A system and mechanism to secure the base of a pole to the
lid of a flatbox finisher is provided. The mechanism utilizes at
least one spring grasping device on the lid of the flat box
finisher to grasp and secure the base of the pole. The grasping
mechanism is depressed and grasps a generally flat rectangular edge
of the base of the pole and secures the base of the pole to the lid
of the flatbox finisher by friction. In particular, as the base
having the pole of the flatbox finisher is first slid over the
grasping mechanism, the grasping mechanism is first pushed
downward. After the base slides over the grasping mechanism, the
grasping mechanism springs back upward and locks the base of the
pole into place on the lid of the flatbox finisher. Wing nuts may
then be used to further secure the base of the pole to the lid of
the flatbox finisher. An alternative embodiment, a knob located on
a receiving cylinder of the lid of the flat box finisher receives a
pin of the handle portion of the flat box finisher and secures the
pin (and therein the handle portion) to the flat box finisher.
[0008] An advantage of the device is to provide a quick and
efficient way to secure the handle portion (having a base) of a
drywall finisher to a lid of the flatbox finisher.
[0009] A further advantage of the device is to provide a flatbox
finisher which is resistant to damage.
[0010] And yet another advantage is to provide a flatbox finisher
which may be made in almost any size.
[0011] Still another advantage of the present device is that the
device may utilize an optional elevated platform to secure various
flatbox finishers.
[0012] Yet another advantage of the present device is that the
present device allows a user to secure or remove the handle portion
of the flatbox finisher by hand and without any tools.
[0013] Still another advantage of the present device is that the
handle of the flat box finisher may be secured to the lid of the
flat box finisher by a knob on a receiving cylinder which receives
a pin from the handle portion of the device.
[0014] For a more complete understanding of the above listed
features and advantages of the flatbox finisher, reference should
be made to the following detailed description of the preferred
embodiments and to the accompanying drawings. Further, additional
features and advantages of the invention are described in, and will
be apparent from, the detailed description of the preferred
embodiments and from the drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
[0015] FIG. 1 illustrates a top view of the lid (or `top`) of the
flatbox finisher.
[0016] FIG. 2 illustrates a perspective view of the base of the
handle portion of the flatbox finisher.
[0017] FIG. 3 illustrates a perspective view of the lid of the
flatbox finisher wherein the base of the flatbox finisher handle is
in the process of being secured to the lid of the flatbox
finisher.
[0018] FIG. 3B illustrates a top and perspective view of the
flatbox finisher wherein a spring is utilized to help secure the
base portion of the flatbox finisher.
[0019] FIG. 4 illustrates a top view of the lid of the flatbox
finisher wherein the base portion is properly secured.
[0020] FIG. 5 illustrates a side view of the lid of the flatbox
finisher wherein the base portion (having the handle) is in the
process of being secured to the lid of the flatbox finisher.
[0021] FIG. 6 illustrates a side view of the lid of the flatbox
finisher wherein the base portion of the flatbox finisher is
properly secured to the lid of the flatbox finisher.
[0022] FIG. 7 illustrates an alternative embodiment of the lid of
the flatbox finisher wherein an elevated platform is utilized.
[0023] FIG. 8 illustrates an alternative embodiment of the lid of
the flat box finisher wherein an elevated platform is utilized.
[0024] FIG. 9 illustrates a side view of an alternative embodiment
of the lid of the flat box finisher.
[0025] FIG. 10 illustrates a side view of the entire box of the
flat box finisher secured to the handle.
[0026] FIG. 11 illustrates a side perspective view of the flat box
finisher having an alternative attachment mechanism for the
handle.
[0027] FIG. 12 illustrates a cut-away view of FIG. 11.
[0028] FIG. 13 illustrates an alternative embodiment of the device
wherein a support base of the flat box finisher is utilized
(instead of the rectangular locking mechanism) to secure the base
unit and the handle portion and wherein the base unit and handle
portion are currently removed from the lid.
[0029] FIG. 14 illustrates the alternative embodiment of FIG. 13
wherein the base portion and the handle portion of the device are
secured within the support base of the device.
[0030] FIG. 15 illustrates a top view of the alternative attachment
mechanism of the base unit and the handle portion of the flat box
finisher to the lid of the flat box finisher wherein the support
base is utilized and wherein the base unit and the handle portion
are temporarily locked into the support base.
[0031] FIG. 16 illustrates a top view of the alternative attachment
mechanism of the base unit and the handle portion of the flat box
finisher to the lid of the flat box finisher wherein the support
base is utilized and wherein the base unit and the handle portion
are not yet locked into place.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0032] A system and mechanism to secure the base of a pole to the
lid of a flatbox finisher is provided. The mechanism utilizes at
least one spring grasping device on the lid of the flat box
finisher to grasp and secure the base of the pole. The grasping
mechanism is depressed and grasps a generally flat rectangular edge
of the base of the pole and secures the base of the pole to the lid
of the flatbox finisher by friction. In particular, as the base
having the pole of the flatbox finisher is first slid over the
grasping mechanism, the grasping mechanism is first pushed
downward. After the base slides over the grasping mechanism, the
grasping mechanism springs back upward and locks the base of the
pole into place on the lid of the flatbox finisher. Wing nuts may
then be used to further secure the base of the pole to the lid of
the flatbox finisher. An alternative embodiment, a knob located on
a receiving cylinder of the lid of the flat box finisher receives a
pin of the handle portion of the flat box finisher and secures the
pin (and therein the handle portion) to the flat box finisher.
[0033] Referring first to FIGS. 1 and 2, in an embodiment, a lid 1
of a flatbox finisher 600 (full flatbox finisher 600 shown in FIG.
10) is provided. The lid 1 of the flatbox finisher 600 may
temporarily receive a base portion 50 (or base `unit`) of the
flatbox finisher 600 wherein the base portion 50 is the portion of
the flatbox finisher 600 in which the handle 100 is secured. The
lid 1 of the flatbox finisher 600 may have a first end 2, a second
end 3, a first side 4, a second side 5, a top surface 6 and a
bottom surface 7.
[0034] In one embodiment, located on the top surface 6 of the lid 1
of the flatbox finisher 600 may be a first and second securing
device 10. The first and second securing device 10 may be, for
example, wing nuts. The first and second securing device 10 (wing
nuts) allows a user to secure or remove the base portion 50 of the
flatbox finisher 600 to the lid 1 of the flatbox finisher 600 by
hand and without any tools. Located on the top surface 6 of the lid
1 of the flatbox finisher 600 may be, for example, a generally
elongated rectangular indentation section 15. The generally
elongated rectangular indentation section 15 may be recessed and
may generally extend downward so as to create a slight concave
portion of the top surface 6 of the lid 1 of the flatbox finisher
600. Located within the generally elongated rectangular indentation
section 15 may be a generally rectangular locking mechanism 20.
Further, the generally rectangular locking mechanism 20 may be
located between the securing devices 10.
[0035] The generally rectangular locking mechanism 20 may have a
first end 30 and a second end 31. The generally rectangular locking
mechanism 20 may be, for example, a thin metal strip which is
spring loaded. In one embodiment, the generally rectangular locking
mechanism 20 may have an upwardly extending lip portion 25 which
extends above the top surface 6 of the lid 1 (see FIG. 9). The
generally rectangular locking mechanism 20 may be secured within
the generally elongated rectangular indentation section 15 by, for
example, a single screw, bolt or the like 21 so that the first end
30 may bend upward while the second end 31 remains stationary.
[0036] Referring now to FIG. 2, in an embodiment, the base portion
50 of the handle of the flatbox finisher 600 may have a front 51, a
back 52, a first side 53, a second side 54, a top 55 and a bottom
56 (FIGS. 5 and 6). Located on the first side 53 and the second
side 54 of the base portion 50 may be a generally u-shaped opening
70. The generally u-shaped openings 70 of the base portion 50 may
respectively receive the securing mechanism 10 of the top surface 6
of the lid 1 when the base portion 50 is secured to the lid 1.
[0037] The base portion 50 of the handle of the flatbox finisher
600 may have a head portion 300 wherein the head portion 300 may
rotate with respect to the base portion 50. In particular, the head
portion 300 may rotate with respect to the base portion 50 by means
of a pivot rod (not shown) located within the head portion 300. As
a result, a user may grasp the handle 100 and move the flatbox
finisher 600 along, for example, a wall while the head portion 300
rotates with respect to the base portion 50 (which remains parallel
to the wall).
[0038] Referring now to FIG. 3B, in an alternative embodiment, the
top surface 6 of the lid of the flatbox finisher 600 may utilize a
plurality of springs 400 as securing mechanism (as opposed to wing
nuts 10 as illustrated in FIG. 1). The plurality of springs 400 may
be secured to the top surface 6 of the lid of the flatbox finisher
600 by a pin 403 secured by a screw 402. Further, the tension
applied by these plurality of springs 400 may be adjustable so as
to allow a user to more quickly complete a job. The plurality of
springs 400 may have a concave lower end 401 which makes direct
contact with top of the base portion 50 and secures the base
portion 50 (along with generally rectangular locking mechanism 20)
to the top surface 6 of the lid of the flatbox finisher 600. As a
result, a user may quickly attach and remove the base portion 50
without any tools and without twisting any wing nuts 10. When
pressure is applied, the plurality of springs 400 (secured by the
pin 403) in an embodiment allow easy removal of the base portion 50
of the device 1 from the top surface 6 of the lid 1 of the flat box
finisher 600.
[0039] Referring now to FIGS. 7 and 8, in an alternative
embodiment, the device may have an optional adjuster 200. The
optional adjuster 200 may be generally rectangular and may be
temporarily secured to the top surface 6 of the lid 1 of the
flatbox finisher 600. In an alternative embodiment, the optional
adjuster 200 may be permanently secured to the top surface 6 of the
lid 1 of the flatbox finisher 600. The optional adjuster 200 may
provide an elevated surface for receiving the base portion 50. In
particular, some base portions 50 of flatbox finishers 600 may be
thinner and/or smaller and therein may require the elevated surface
the optional adjuster 200. When the base portion 50 is secured to
the top surface 6 of the lid 1 of the flatbox finisher 600, in the
embodiment utilizing the optional adjuster 200, the base portion 50
may therein primary contact the optional adjuster 200 and may not
directly contact the top surface 6 of the lid 1.
[0040] To secure the base portion 50 (and thus the handle 100) to
the lid 1 of the flatbox finisher 600, a user first slides the base
portion 50 over the generally rectangular locking mechanism 20
until the first end 30 of the generally rectangular locking
mechanism 20 grasps the front 51 of the base portion 50. The first
and second securing devices 10 are moved into the u-shaped openings
70 at the same time as the generally rectangular locking mechanism
20 grasps the front 51 of the base portion 50. The first and second
securing mechanisms 10 may then be tightened by, for example,
twisting (the wing nuts). To remove the base portion 50 from the
lid 1, the reverse process is followed (while depressing the first
end 30 of the generally rectangular locking mechanism 20).
[0041] Referring now to FIGS. 11 and 12, in an alternative
embodiment, the top 6 of the lid 1 of the flat box finisher 600 may
have a permanently secured cylindrical receiving mechanism 480. The
cylindrical receiving mechanism 480 may have a knob 405 which may
be used to tighten a screw 408 extending into an opening shaft 407
of the cylindrical receiving mechanism 480. A pin 410 located on
the handle portion 100 of the flat box finisher may be received by
an opening shaft within the cylindrical receiving mechanism 480 and
may temporarily lock the handle 100 to the lid 1 of the flat box
finisher 600. When a user wishes to disengage the handle from the
lid 1, a user may unscrew the knob 405 to release the pressure and
the pin 410 may therein be removed along with the remaining portion
of the handle 100. A pivot pin 425 may allow the handle 100 to
pivot with respect to the top surface 6 of the lid 1 of the
device.
[0042] Referring now to FIGS. 13-16, in yet another alternative
embodiment, a support base 641 may be utilized to secure the base
portion 50 (and therein handle), to the top surface 6 of the lid 1
of the device. The support base 641 may be a raised perimeter
having a central opening 643 for receiving the removable base
portion 50 (and wherein the base portion 50 has the general shape
of the opening 643). The opening 643 may expose the top surface 6
of the lid 1 (which is located directly below the support base
641). The support base 641 may further have a height 642
substantially equal to a height of the base portion 50 so that the
base portion 50 and the support base 641 remain generally flush
when the base portion 50 is inserted into the opening 643 of the
support base 641 (as is shown in FIG. 14). More specifically, the
opening 643 may allow for the temporary securing of the base
portion 50 (and thus the handle) to the top surface 6 of the lid 1.
Thus, in an embodiment, the support base 641 is permanently secured
to the lid 1 whereas the base portion 50 (and thus handle) portion
are removable from the lid 1. More specifically, a perimeter of the
base portion 50 is substantially similar to the perimeter of the
opening 643 of the support base 641 so that the base portion 50 may
snugly fit within the opening 643 of the support base 641 during
use of the device.
[0043] In particular, a pin 601 (such as a screw) located on the
top of the support base 641 may allow a rotating grasping device
602 to rotate partly over the top of the base portion 50 when the
base portion 50 is inserted into the opening 643 of the support
base 641 to therein secure the base portion 50 within the opening
643 in a flush manner. To remove the base portion 50 (and thus
handle 100), the rotating grasping device 602 is rotated so that no
portion of the rotating grasping device 602 covers any portion of
the base portion 50 (see FIG. 16). Opening slots 600 of the base
portion 50 may therein not be need in this embodiment. A pivot pin
650 may allow the handle 100 to rotate with respect to the base
portion 50 during use.
[0044] Although embodiments of the invention are shown and
described therein, it should be understood that various changes and
modifications to the presently preferred embodiments will be
apparent to those skilled in the art. Such changes and
modifications may be made without departing from the spirit and
scope of the invention and without diminishing its attendant
advantages. It is, therefore, intended that such changes and
modifications be covered by the appended claims.
* * * * *