U.S. patent application number 09/750397 was filed with the patent office on 2002-07-11 for truss-lift correction device.
Invention is credited to Zielke, Dietbert M..
Application Number | 20020088197 09/750397 |
Document ID | / |
Family ID | 25017702 |
Filed Date | 2002-07-11 |
United States Patent
Application |
20020088197 |
Kind Code |
A1 |
Zielke, Dietbert M. |
July 11, 2002 |
Truss-lift correction device
Abstract
The Truss-Lift Correction Plate and the Truss-Lift Correction
Bracket that I have invented, if installed to my specifications,
will correct the Truss-Lift problem that is well known to those in
the building industry who use wood trusses as supports for the roof
system. Both, the plate and the bracket will facilitate movement
when Truss-Lift occures and therby eliminate unwanted noise or
other stress factors.
Inventors: |
Zielke, Dietbert M.; (Grand
Rapids, MI) |
Correspondence
Address: |
Dietbert M. Zielke
1153 Plymouth, N. E.
Grand Rapids
MI
49505
US
|
Family ID: |
25017702 |
Appl. No.: |
09/750397 |
Filed: |
January 9, 2001 |
Current U.S.
Class: |
52/712 |
Current CPC
Class: |
E04B 1/2608
20130101 |
Class at
Publication: |
52/712 |
International
Class: |
E04B 007/04; E04B
001/38; E04C 005/00 |
Claims
I claim as my invention:
1. The Truss-Lift Correction Plate and
2, the Truss-Lift Correction Bracket, both described in the
DETAILED DESCRIPTION OF THE INVENTION, and also production details
given in drawing #1 and drawing #2.
3, I claim the size of the plate and bracket.
4, I claim the placement and size of the slots and holes in the
plate and bracket, and
5, I claim the application and installation methods of the plate
and bracket as my invention as All are described in the DETAILED
DESCRIPTION OF THE INVENTION.
Description
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] Not Applicable
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT
[0002] Not Applicable
REFERENCE TO A MICROFICHE APPENDIX
[0003] Not Applicable
BACKGROUND OF THE INVENTION
[0004] The invention of the Truss-Lift Correction Device relates to
the part of the building indutry in which wood trusses are used to
support the roof. Those who work with wood trusses are familiar
with "Truss-Lift" and its resulting problems. The major problem
being the lifting up of interior walls off the floor which results
in much unwanted noise when walking on the floor, because either
the flooring material slides up and down on the nails with which
the wall plates were nailed to the floor or the wall plate slides
up and down. It could be either one.
[0005] The Truss-Lift Correction Device that I have invented, if
installed to my specifications, which will follow, will eliminate
the noise problem when Truss-Lift occurs. The Truss-Lift Correction
Device has two different geometric forms. one is a straight plate
and the other a bracket bent in the middle at a 90.degree. angle.
Specifics will follow.
[0006] The Truss-Lift Correction Plate is a flat plate of
galvanized 14 gauge metal. It has the dimensions of 31/2 inches
wide by 7 inches long. On one end of the plate are three slotes
which are 11/2 inches long by {fraction (3/16)} inches wide. On the
other end of the 31/2 inch center line of the plate are four holes
which are {fraction (3/16)} inch in diameter.
[0007] The Truss-Lift Correction Bracket is identical in all
specifications of the Truss-Lift Correction Plate, except that it
is bent at a 90.degree. angle at the 31/2 inch midpoint of the
plate. The placement of the slotes and holes in the plate and
bracket are as specified in the drawings.
[0008] The installation and application of the Truss-Lift
Correction Pate and Bracket are as follows: The four hole side of,
both, the plate and the bracket is to be nailed solid to the top of
the interior walls at the points where the trusses cross the
interior walls. The slotted side of both the plate and the bracket
is to be nailed to the trusses wherever the plate or bracket is
applied. It is of utmost importance, however, not to drive the
nails in the three slotes solid to the trusses, but the nails must
have a 1/8 inch gap/play between the plate or bracket and the
trusses so that the trusses can move up freely and not lift the
walls off the floors when Truss-Lift takes place. Nails should be
16d sinkers for both the hole and slotted sides of the plate and
bracket. It is also very important that the nails that are placed
in the slotes are placed at the bottom of the slotes, that is, as
closely as possible toward the top of the walls.
[0009] When a Truss-Lift Correction Plate is applied the center
line must be at the junction of the interior walls with the
trusses. The 90.degree. angle of the Truss-Lift Correction Bracket,
of course, determines the placement of the bracket on the interior
walls in relationship to alltruss crossings.
[0010] Since trusses are usually anchored on load-bearing exterior
walls, they will be crossing most interior walls at right angles,
therefore, the Truss-Lift Correction Bracket will be used to a much
greater extent than the flat plate. The 90.degree. angle bracket,
of course, can be used at any angle crossing.
[0011] Both, the Truss-Lift Correction Plate and the Truss-Lift
Correction Bracket can also be used in other applictions where any
direction of movement must be avoided or facilitated, depending on
the nature of the problem.
[0012] As far as the exterior bearing walls are concerned, the
trusses should be anchored according to local building codes. That
is, the trusses should be secured solid to the bearing walls.
BRIEF SUMMARY OF THE INVENTION
[0013] The invention of the Truss-Lift Correction Device in both
the plate and bracket form is to correct Truss-Lift by facilitating
movement between trusses and walls and as a result eliminate
unwanted noise (floor squeaks). The appliction of the plate and
bracket results, of course, in a much better construction practice
than nailing the trusses solid to the walls at all crossings.
BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS
[0014] Drawing #1 shows the Truss-Lift Correction Plate and drawing
#2 shows the Truss-Lift Correction Bracket. The Truss-Lift
Correction Plate is a flat plate of galvanized 14 gauge metal. It
has the dimensions of 31/2 inches wide by 7 inches long. On one end
of the plate are three slotes, each being 11/2 inches long by
{fraction (3/16)} inches wide. On the other end of the 31/2 inch
center line of the plate are four holes each being {fraction
(3/16)} inch in diameter. The placement of the slotes and holes in
the plate are as specified in drawing #1.
[0015] The Truss-Lift Correction Bracket, as shown in drawing #2 is
identical in all specifications of the Truss-Lift correction Plate,
except that it is bent at a 90.degree. angle at the 31/2 inch
midpoint of the plate. The placement of the slotes and holes in the
bracket are as specified in drawing #2.
DETAILED DESCRIPTION OF THE INVENTION
[0016] The Truss-Lift Correction Device in plate and bracket form
is a device that is easily produced but is very unique in its
concept, application and problem solving ability. A 7 inch long by
31/2 inch wide galvanized 14 gauge metal plate is needed. one end
of th plate has three 11/2 long by {fraction (3/16)} inch wide
slotes, placed in the plate at the positions as specified in
drawing #1. The other end of the plate has four holes {fraction
(3/16)} inch in diameter. Also placed in the plate at the positions
as specified in drawing #1.
[0017] The Truss-Lift correction Bracket is of the same material as
the plate. The size is also the same as the plate and the placement
of the slotes and holes in the bracket are also identical to that
of the plate. The one difference between plate and bracket is that
the bracket is bent at a 90.degree. angle at the 31/2 Inch midpoint
of the flat plate. Details for the positions of the slotes and
holes in the bracket are given in drawing #2.
[0018] The use of my invention is also verysimple, but must be
applied and installed according to my easily understood instrucions
in order to avoid the Truss-Lift problem. The following is a
detailed application and installation instruction for theTruss-Lift
Correction Plate and Bracket: The four hole side of both plate and
bracket must be nailed solid to the top of the interior walls at
the points where where the trusses cross the interior walls. The
slotted side of both the plate and the bracket must be nailed to
the trusses wherever the plate and bracket is applied. It is of
utmost importance, however, not to drive the nails, one per slot,
solid to the trusses, but the nails must have a 1/8 inch gap/play
between plate or bracket and the trusses so that the trusses can
slide up freely and not lift the wails off the floors when
Truss-Lift takes place. It is also important to use 16d sinker
nails for both the slots and holes in the plate and bracket since
the size of the slots and holes were designed for 16d sinkers.
Further, it is important that the nails that are placed in the
slots must be placed at the bottom of the slots, that is, as
closely as possible toward the top of the walls in order to allow
sliding room when the trusses move upward.
[0019] When a Truss-Lift Correction Plate is applied the center
line must be at the junction of the interior walls with the
trusses. The 90.degree. angle of the Truss-Lift Correction Bracket,
of course, determines the placement of the bracket on the interior
walls in relationship to all the truss crossings. Since trusses are
usually anchored on load bearing exterior walls, they will be
crossing most interior walls at right angles, therefore, the
Truss-Lift Correction Bracket will be used to a much greater extent
than the flat plate. The 90.degree. angle bracket, of course, can
be used at any angle the trusses cross the interior walls.
[0020] Both, the truss-lift correction plate and the truss-lift
correction bracket can be used in other applications where
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