Note: Descriptions are shown in the official language in which they were submitted.
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TO WHOM IT MAY CONCERN:
Be it known that I, Carmen Gueli, a resident of the
City of Saginaw, County of Saginaw, State of Michigan, a
citizen of the United States of America have invented a new
and useful device that is a
JOIST HANGER/BRACKET
that is described in this specification.
BACKGROUND
Joist hangers are not new to the art. However, joist
hangers that are imbedded into poured concrete for the
purpose of retaining the joint support, increasing the
strength of the overall structure are. Insulated concrete
forms can be built quickly and efficiently. The present
device improves the ability to increase efficiency. Prior
art devices are limited in their application.
In United States Patent 8,051,620 entitled, "Joist
Hanger for ICF Wall System" issued to Kittlitz on November
8, 2011 teaches a hanger for supporting joists or beams in
insulated concrete formwork (ICF) systems that has two
parallel side plates having inner and outer sections, plus
an L-shaped support member comprising a horizontal leg
extending between the lower edges of the outer section of
the side plates, and an upward-extending vertical leg which
demarcates the inner and the outer side plate sections.
The inner sections of the side plates are passed
through slits in one insulation panel of the ICF wall
forming system, until the support's vertical leg abuts the
outer face of the insulation panel, leaving the side plate
inner section extending partially into the formwork cavity.
The joist or beam to be supported may be set on the
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horizontal leg of the support member either before or after
the concrete wall is cast.
Preferably, a cut out is made in the insulation panel
behind the vertical leg of the support members to allow
concrete to flow against the vertical leg and the supported
joist or beam is cut for a close fit against the vertical
leg such that external loads on the wall can pass into the
joist or beam by direct compression.
The Kittlitz patent is limited by the required effort
to thread the re bar through the opening in the part of the
hanger that is within the forms. The present device allows
for a quicker resolution by allowing the re bar to rest in
the groove of the joist hanger portion imbedded within the
poured wall and between the foam forms. The present device
also has a plate between the hanger portion and the foam
form for greater stability.
In United States Patent 6,845,954 entitled, "Pre-
manufactured Joist and Beam Support for Concrete Walls",
issued to Harber on January 25, 2005 teaches a pre-
manufactured joist hanger and beam hanger support for
concrete walls to be poured, particularly those utilizing a
permanent, secondary non-structural material as forms
essentially adjacent to the concrete, comprised of a
U-shaped rigid member, rigid anchor members extending
therefrom so as to cause a sufficiently large hole to be
created in the secondary material in which the support is
inserted and which essentially does not interfere with the
flow of concrete being poured.
The Harber patent is limited, in that, it does not tie
to any other structural item. It does not connect to any
re-bar within the poured concrete and relies on the anchors
to hold the compression weight to support the joist or
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beam. The present device allows for the quick connection of
the rebar to the joist hanger to transfer even more of the
compression weight into the rebar and then the poured
concrete giving it greater stability and a greater utility.
THE DISCLOSURE
The present device is a hanger for concrete walls, the
joist hanger comprises a flat plate. The flat plate has a
front surface and a back surface. There is a re-rod hanger
fixedly mounted on the back surface. There is a joist holder
fixedly mounted on the front surface, in alignment with,
and opposite the re-rod hanger.
Another embodiment of the hanger comprises a hanger
for concrete walls. This hanger comprises a unitary metal
U-shaped truss support that has a first side that has a
bottom edge, and a second side that has a bottom edge.
The first side has a downwardly extending first leg
unitarily connected to the bottom edge of the first side.
The second side has a downwardly extending second leg
unitarily connected to the bottom edge of the second side.
Each of the downwardly extending legs has a plurality of
barbs extending therefrom.
Another embodiment is a truss-chord building bracket
that comprises a first flat panel that has a first side
edge, a second side edge, a first end edge and a second end
edge. The flat panel has at least one through opening near
the first end edge and at least one through opening near
the second end edge. There is a second flat panel that has
a first side edge. The second flat panel is integrally
attached by the first side edge to the first side edge of
the first flat panel such that the second flat panel is
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located vertically relative to the first flat panel. The
second flat panel has a plurality of openings therethrough.
There is also a third flat panel that has a first side
edge. The third flat panel is integrally attached by the
first side edge to the second side edge of the second flat
panel such that the third flat panel is located vertically
relative to the second flat panel. The third flat panel has
a plurality of first openings therethrough. The third flat
panel has a plurality of punched openings therethrough
wherein, the material that is punched forms extensions that
are perpendicular to a back wall of the third flat panel.
BRIEF DESCRIPTION OF THE DRAWINGS
Figure 1 a full side view of the joist hanger within a
poured wall.
Figure 2 is a full top view of the joist hanger.
Figure 3 is a full front view of the joist hanger.
Figure 4 is a full side view of the joist hanger.
Figure 5 is a full view of the joist/ truss hanger.
Figure 6 is a full view of another embodiment of a
joist/ truss hanger for the end cap of a poured wall.
Figure 7 is a full side view in a poured wall of the
second embodiment.
Figure 8 is a full top view of the second embodiment.
Figure 9 shows the second embodiment from one end.
Figure 10 is a full view of the second embodiment.
Figure 11 is a full view of the third embodiment.
Figure 12 is a full top view of the third embodiment.
Figure 13 is a full frontal view of the third
embodiment.
Figure 14 is a full side view of the third embodiment.
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DETAILED DESCRIPTION OF THE DRAWINGS
Figure 1 shows the joist hanger 2 from the side within
a poured wall 36. The flat plate 4 has a re-bar hanger 10
extending rearwardly from the back surface 8. The front
surface 6 has the joist holder 12 extending forwardly from
that front surface 6. The joist holder 12 consists of a
first side 22 and a second side 24. The joist holder 12
also has a bottom 26 where a joist rests. Both the first
side 22 and the second side 24 have openings therethrough
28 to secure the joist 38.
The back surface 8 of the flat plate 4 has the distal
end 16 of the re-bar hanger 10 extending from it. The near
end 14 of the re-bar hanger 10 has a first U-shaped portion
18 that supports re-bar 40. It has been discovered that the
re-bar 40 can simply be placed in the first U-shaped
portion 18 and the poured concrete 32 will retain it in
place which adds to the structural integrity by receiving
and transferring compression weight. There is a second U-
shaped portion 20 that allows for extra reinforcement when
a second re-bar 40 is added. This second re-bar 40 must be
tied down with re-bar ties 34 to prevent movement of the
re-bar 40 prior to the concrete pour.
The hanger 2 fits securely through an opening in the
foam form 30. The flat plate 4 prevents movement during the
pour process and reduces any leakage that may occur during
the pouring or the concrete 32.
Figure 2 shows the joist hanger 2 from the top. The
joist hanger 4 is on the front surface 6 of the flat plate
4. The re-bar hanger 10 is on the back surface 8 of the
flat plate 4. The re-bar hanger 10 is slightly angled
outwardly as it runs from its distal end 16 to the near end
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14 where the first U-shaped portion 18 and the second U
shaped portion 20 are located. It has been discovered that
the wider near end 14 gives the joist hanger 2 more
stability and reduces the likelihood that it would pull out
of the concrete due to compression stress.
Figure 3 shows the joist hanger 2 from the front. The
flat plate 4 has a front surface 6 that has the joist
holder 12 extending therefrom. The joist holder 12 has a
first side 22 and a second side 24. The joist holder 12
also has a bottom where the joist 38 rests.
Figure 4 shows the joist hanger 2 from side. The flat
plate 4 has a front surface 6 and a back surface 8. The
back surface 8 shows the re-bar hanger 10 extending from
it. The front surface 6 shows the joist holder 12 extending
from it. The near end 14 of the re-bar hanger 10 contains
the first U-shaped portion 18 and the second U-shaped
portion 20 for accepting re-bar 40.
The front surface 6 shows the joist holder 12
extending from it. The joist holder 12 has a first side 22
and a second side 24. The joist holder also has a bottom
26. Both the first side 22 and the second side 24 have
openings 28 that allow for securing a joist 38 to the joist
holder 12.
Figure 5 shows the joist/ truss hanger 2. The flat
plate 4 has a front surface 6 and a back surface 8. The
back surface 8 has the rebar hanger 10 extending from it.
The front surface 6 has the joist holder 12 extending from
it. The rebar hanger 10 is placed through and opening in
the foam form 30 and into an empty space between the two
foam forms 30. This space is filled with poured concrete 32
after the rebar 40 is place in the first U-shaped portion
18 of the re-bar hanger 10.
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The joist/ truss hanger 2 is embedded into the wall
before the concrete is poured. The flat plate 4 and the
joist holder 12 are the only portions that are left
exposed. The joist 38 is placed into the joist holder and
secured through the openings 28 therethrough. The
compression stress that is applied to the joist 38 is
transferred from the joist 38 to the joist hanger 2 and on
to the re-bar 40 and the poured wall 36.
Figure 6 shows another embodiment of a joist hanger 42
for an end cap 60 of a poured wall 36. Joist hanger 42 has
a unitary U-shaped truss support 44. The first side 46 of
the unitary U-shaped truss support 44 has a first bottom
edge 48 and, extending downwardly from the first bottom
edge 48 is a first leg 54 that contains barbs 58. The
second side 50 of the unitary U-shaped truss support 44 has
a second bottom edge 52 and extending downwardly from the
second bottom edge 52, is a second leg 56 that contains
barbs 58.
Figure 7 shows the second embodiment 42 from the side
in a poured wall 36. Here the poured wall forms an end cap
60. The two foam forms 30 create and opening that is filled
with concrete 32. The hanger 2 is placed in the concrete
before the concrete 32 cures. The first leg 54 and the
second leg 56 are inserted into the concrete 32 until the
first bottom edge 48 and the second bottom edge 52 abut the
concrete 32. The exposed portion is the unitary U-shaped
truss support 44 that will accept a joist 38. The joist 38
is anchored to the hanger 2 by fasteners that pass through
the openings 28 in the first side 46 and the second side
50. The Barbs 58 prevent the hanger 2 from pulling out of
the concrete 32.
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Figure 8 shows the second embodiment 42 from the top.
There are openings 28 in the bottom 62 of the unitary U-
shaped truss support 44 that allows the unitary U-shaped
truss support 44 to be anchored to the concrete 32 of the
end cap 60.
Figure 9 shows the second embodiment 42 from one end.
The unitary U-shaped truss support 44 has a first side 46
and a second side 50. The first side 46 has a first bottom
edge 48 that has a first leg 54 depending from it. The
unitary U-shaped truss support 44 has a second side 50 that
has a second bottom edge 52 that has a second leg 56
depending from it. The barbs 58 of the first leg 54 and the
second leg 56 are also shown.
Figure 10 shows the second embodiment 42 of the hanger
2 that features the unitary U-shaped truss support 44. The
unitary U-shaped truss support has a first side 46 that has
a first bottom edge 48 that has a first leg 54 that depends
from it. The unitary U-shaped truss support 44 has a second
side 50 that has the second bottom edge 52 that has the
second leg 56 depending from it. The openings 28 allow for
anchoring the joist 38 to the hanger 2 as well as the
hanger 2 to the concrete 32 through the openings 28 of the
bottom 62.
Figure 11 is a full view of the third embodiment of
the hanger 2. This third embodiment is a truss chord
bracket or hanger 2 that supports the bottom chord of the
truss at the side of the building. This embodiment is a
truss-chord building bracket 2 that comprises a first flat
panel 72 that has a first side edge 74, a second side edge
76, a first end edge 78 and a second end edge 80. The flat
panel 72 has at least one through opening 82 near the first
end edge 78 and at least one through opening 82 near the
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second end edge 80. There is a second flat panel 84 that
has a first side edge 86. The second flat panel 84 is
integrally attached by the first side edge 86 to the first
side edge 78 of the first flat panel 72 such that the
second flat panel 84 is located vertically relative to the
first flat panel 72. The second flat panel 84 has a
plurality of openings therethrough 88.
There is also a third flat panel 90 that has a first
side edge 92. The third flat panel 90 is integrally
attached by the first side edge 92 to the second side edge
87 of the second flat panel 84 such that the third flat
panel 90 is located vertically relative to the second flat
panel 84. The third flat panel 90 has a plurality of first
openings therethrough 94. The third flat panel 90 has a
plurality of punched openings therethrough 96 wherein, the
material that is punched forms extensions that are
perpendicular to a back wall of the third flat panel 90.
Figure 12 is a full top view of the third embodiment
of the hanger 2. From the top the flat panel 84 is shown.
The punched openings 96 are seen with the extension of
which project in both directions.
Figure 13 is a full frontal view of the third
embodiment of the hanger 2. The first panel 72 and the
second panel 90. The openings 82 in the first panel 72 are
for attaching the hanger 2 to secure it to a joist. The
bottom panel or third panel 90 is shown with the punched
openings 96 present.
Figure 14 is a full side view of the third embodiment
of the hanger 2. The first panel 72, second panel 84 and
the third panel 90 are shown. Also shown are the punched
openings 96 of the third panel 90.
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The hangers 2 are manufactured for use in construction
of wood and concrete. The first embodiment is placed
through a layer of foam that is provided as a form to fill
with concrete to create walls. The hangers 2 provide
improved features like a rebar hanger 10 to provide
additional strength for accepting and transferring
compression stress. The re-bar hanger 10 also helps prevent
pull out by having the ability to allow poured concrete to
pass through it, thus providing a large concrete encased
anchor.
The second embodiment is placed in the end cap of a
pour wall to provide a truss support for securing joist.
The third embodiment is a truss chord bracket or
hanger 2 that supports the bottom chord of the truss at the
side of the building.
The joist hanger/bracket 2 also serves to replace
hurricane straps and eliminate the need to use them. The
joist hanger/bracket 2 are mounted before the concrete is
poured. It has been discovered that the joist
hanger/bracket 2 is more secured than any hurricane strap
because it is now part of the structure instead of an added
feature.
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