Note: Descriptions are shown in the official language in which they were submitted.
CA 02618941 2008-01-24
DOUBLE OFFSET PIPE HANGER AND RESTRAINER
Background of the Invention
Field of the Invention
[0001] The present
invention relates generally to devices for supporting utility
loads and the like, and in particular to a double offset hanger and restrainer
for supporting
and bracing a pipe.
Description of the Related Art
[0002] There are
many products and assemblies thereof utilized by construction,
building, plumbing and electrical contractors and workers for bracing and
supporting pipes,
ducts, sprinkler systems, fans, air-conditioners, electrical cables,
communication lines and
other loads from ceilings, beams and floors. These products include clamps,
braces, cables,
hooks, straps, hangers, plates, brackets, among other items.
[0003] In some
instances, a utility pipe or duct is supported below a ceiling by
mounting it to a beam that is also positioned below the ceiling. One
disadvantage of
conventional devices utilized for this purpose is that they lack versatility
and flexibility in
installation, thereby undesirably adding to the cost and time involved.
Another
disadvantage of some of these conventional devices is that they utilize
designs that
unnecessarily consume additional fabrication material in their construction.
This additional
material needlessly adds to the device weight without providing additional
benefits in
securely supporting the pipe, thereby again undesirably adding to the
manufacturing cost
and reducing the utility of the device.
[0004] In general,
and disadvantageously, such pipe-supporting devices that are
commonly used in the industry are difficult to install and expensive.
Additionally, and
undesirably, these devices may not be suited for reliably sustaining loads.
Summary of the Invention
[0005] Some
embodiments of the present invention provide a double offset
hanger and restrainer device for securely supporting a pipe or the like
against undesirable
sway and seismic disturbances. The double offset desirably provides spatial
clearance for
the pipe relative to a support structure or beam to which the device is
attached. The hanger
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and restrainer device includes a proximal portion mountable to a beam or the
like and a
specially contoured distal portion with an opening that can receive the pipe
in a "snap-on"
manner. Advantageously, the device is configured to provide support to the
pipe in the
directions that are exposed to load while maintaining structural integrity and
substantially
preventing or mitigating undesirable stress concentrations. The snap-on or
press-fit feature
also provides the advantage of retrofit installation, thereby permitting one
or more of the
devices to be added on without disassembly of an existing installation. The
double offset
device is easy to install and manufacture, and is well suited for reliably
sustaining loads.
[0006] Some embodiments of the present invention provide a double offset
device for supporting a pipe. The double offset device generally comprises a
proximal
portion, a distal portion spaced from the proximal portion, and an
intermediate medial
portion that connects the proximal portion and the distal portion. The
proximal portion
comprises a generally rectangular flat mounting flange that is attachable to a
support
structure. The distal portion comprises a generally curved flat plate and a
slot for receiving
the pipe therein. The slot comprises a closed end and an opposed open end for
allowing
passage of the pipe into the slot. The closed end comprises a predetermined
degree of
resilience for engaging the pipe in a snap-on manner. The closed end is
generally semi-
circular and includes a generally flat supporting portion proximate a junction
of the closed
end and the open end. The medial portion comprises a generally trapezoidal
flat plate with a
span that decreases in a direction extending from the proximal portion towards
the distal
portion. The generally trapezoidal flat plate offsets the slot of the distal
portion in a first
direction generally perpendicular to the mounting flange and in a second
direction generally
parallel to the mounting flange.
[0007] Some embodiments provide a double offset device for supporting a
pipe.
The double offset device generally comprises a proximal portion and a distal
portion. The
proximal portion is attachable to a support structure. The distal portion is
substantially
offset in two directions relative to the proximal portion and/or the support
structure. The
distal portion comprises an opening that is capable of resiliently receiving
and snapping-on
to the pipe such that a predetermined portion of the pipe outer contour abuts
a closed end of
the opening while a remaining peripherally aligned corresponding portion of
the pipe outer
contour is exposed.
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[0008] Some embodiments provide a method of double offsettingly
supporting a
pipe relative to a beam to form an installation. The method comprises mounting
a proximal
portion of a double offset device to the beam such that a distal portion of
the double offset
device is offset in two directions relative to the proximal portion and/or the
beam. The
method further comprises connecting the pipe to the distal portion such that
the pipe is
resiliently received in a slot of the distal portion which forms a snap-on
connection with the
pipe and contacts a semi-circular surface of the pipe outer diameter while a
remaining
circumferentially aligned corresponding semi-circular surface of the pipe
outer diameter is
exposed.
[0009] For purposes of summarizing the invention, certain aspects,
advantages
and novel features of the invention have been described herein above. Of
course, it is to be
understood that not necessarily all such advantages may be achieved in
accordance with any
particular embodiment of the invention. Thus, the invention may be embodied or
carried
out in a manner that achieves or optimizes one advantage or group of
advantages as taught
or suggested herein without necessarily achieving other advantages as may be
taught or
suggested herein.
[0010] All of these embodiments are intended to be within the scope of
the
invention herein disclosed. These and other embodiments of the invention will
become
readily apparent to those skilled in the art from the following detailed
description of the
preferred embodiments having reference to the attached figures, the invention
not being
limited to any particular preferred embodiment(s) disclosed.
Brief Description of the Drawings
[0011] Having thus summarized the general nature of the invention and
some of
its features and advantages, certain preferred embodiments and modifications
thereof will
become apparent to those skilled in the art from the detailed description
herein having
reference to the figures that follow, of which:
[0012] FIG. 1 is a simplified perspective view of a double offset hanger
and
restrainer mounted to a beam and supporting a pipe having features and
advantageous in
accordance with certain embodiments of the invention.
[0013] FIG. 2 is a simplified side view of FIG. 1 illustrating features
and
advantages in accordance with certain embodiments of the invention.
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[0014] FIG. 3 is a simplified front view of FIG. 1 illustrating features
and
advantages in accordance with certain embodiments of the invention.
[0015] FIG. 4 is a simplified perspective of a double offset pipe hanger
and
restrainer having features and advantageous in accordance with certain
embodiments of the
invention.
[0016] FIG. 5 is a simplified side view of the double offset pipe hanger
and
restrainer FIG. 4 illustrating features and advantages in accordance with
certain
embodiments of the invention.
[0017] FIG. 6 is a simplified front view of the double offset pipe
hanger and
restrainer FIG. 4 illustrating features and advantages in accordance with
certain
embodiments of the invention.
[0018] FIG. 7 is a simplified end view of the double offset pipe hanger
and
restrainer FIG. 4 illustrating features and advantages in accordance with
certain
embodiments of the invention.
[0019] FIG. 8 is a simplified perspective of a double offset pipe hanger
and
restrainer having features and advantageous in accordance with certain other
embodiments
of the invention.
[0020] FIG. 9 is a simplified side view of the double offset pipe hanger
and
restrainer FIG. 8 illustrating features and advantages in accordance with
certain
embodiments of the invention.
[0021] FIG. 10 is a simplified front view of the double offset pipe
hanger and
restrainer FIG. 8 illustrating features and advantages in accordance with
certain
embodiments of the invention.
[0022] FIG. 11 is a simplified end view of the double offset pipe hanger
and
restrainer FIG. 8 illustrating features and advantages in accordance with
certain
embodiments of the invention.
[0023] FIG. 12 is a simplified perspective view of a double offset
hanger and
restrainer with a locking tab supporting a pipe having features and
advantageous in
accordance with certain embodiments of the invention.
[0024] FIG. 13 is a simplified perspective of a double offset pipe
hanger and
restrainer having features and advantageous in accordance with certain further
embodiments
of the invention.
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[0025] FIG. 14 is a simplified side view of the double offset pipe hanger
and
restrainer FIG. 13 illustrating features and advantages in accordance with
certain
embodiments of the invention.
[0026] FIG. 15 is a simplified front view of the double offset pipe hanger
and
restrainer FIG. 13 illustrating features and advantages in accordance with
certain
embodiments of the invention.
[0027] FIG. 16 is a simplified flow chart depicting some methods of using
embodiments of the double offset device illustrating features and advantages
in accordance
with certain embodiments of the invention.
[0028] FIG. 17 is a simplified flow chart depicting further details of
retrofit
and/or replacement techniques relating to the flow chart of FIG. 16
illustrating features and
advantages in accordance with certain embodiments of the invention.
Detailed Description of the Preferred Embodiments
[0029] The preferred embodiments of the invention described herein relate
generally to devices for supporting utility loads and the like and, more
particularly, to a
double offset hanger and restrainer for supporting and bracing a pipe,
suspended below a
support surface or the like, against undesirable sway and seismic
disturbances, and methods
thereof
[0030] While the description sets forth various embodiment specific
details, it
will be appreciated that the description is illustrative only and should not
be construed in
any way as limiting the invention. Furthermore, various applications of the
invention, and
modifications thereto, which may occur to those who are skilled in the art,
are also
encompassed by the general concepts described herein.
[0031] FIGS. 1-3 show different views of a double offset hanger and
restrainer
or device (or double offset attachment, fitting or mount) 10 supporting a
pipe, conduit,
channel or tube 12 and mounted, connected or attached to a beam, support
structure or
surface 14. The double offset device 10 is connected to the beam 14 by a pair
of fasteners,
screws, bolts or connector pins 16, 17 which are received in respective
openings or cavities
18, 19 in the beam 14.
[0032] Typically, the beam 14 extends below a ceiling or upper support
surface
of a structure or building with the pipe 12 suspended therebelow and the
double offset
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device 10 serves as a hanger and restrainer to support the pipe 12 against
undesirable
seismic and sway disturbances. Advantageously, the double offset device 10 is
a versatile
component that can be efficaciously utilized to hang pipes 12 and the like
(for example,
miscellaneous architectural, decorative and other mechanical devices) and
restrain
movement during seismic events.
[0033] The double
offset or standoff device 10 generally extends in the x- and z-
directions while the surface of the beam to which the device is mounted
extends in the z-
and y-directions as defined by a right-handed three dimensional Cartesian
coordinate
system. It should be understood that this coordinate system is for reference
only and not
limiting, and other coordinate systems may be efficaciously used to depict
orientation, as
needed or desired.
[0034] As discussed
further below, the double offset device 10 desirably
provides a snap-on feature to receive the pipe 12 within a generally semi-
circular opening,
slot or cavity at a distal portion of the double offset device 10. Also as
discussed further
below, in some embodiments, a generally flat portion of the pipe-receiving
opening provides
the desired support and restraining capability in the z-direction.
[0035] The
generally semi-circular opening, slot or cavity of the double offset
device 10 provides several advantages compared to a hole or cylinder which
surrounds the
entire outer diameter or perimeter of the pipe 12 since the forces applied to
the pipe 12 are
substantially in the z-direction (as generally depicted by arrows Fõ and Fz.)
while the forces
exerted in the x-direction are negligible or substantially zero (as generally
depicted by
arrows Fx.,. and Ft.). Stated different, the double offset device 10 of
embodiments of the
invention eliminates redundancy and undesirable wastage of material since the
relevant
forces applied to the pipe 12 are substantially in a vertical plane (as
generally depicted by
arrows and
F,.) and negligible in a horizontal plane (as generally depicted by arrows F.
and Fr.).
[0036] Embodiments
of the double offset device 10 are desirably configured to
prevent or mitigate undesirable stress concentration(s) which could lead to
fracture or
breakage location(s) or points, thereby advantageously preventing device
failure or fracture.
Advantageously, this is accomplished by not incorporating any strength
compromising
bends or cut-outs while maintaining suitable or optimal structural strength.
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[0037] Another advantage of embodiments of the double offset device 10
is that
the spacing between the positions of the fasteners, screws, bolts or connector
pins 16, 17 is
optimized. This desirably allows for the use of smaller size fasteners 16, 17,
for example,
screws of smaller diameter and length. This desirably saves on the
installation cost.
[0038] Still another advantage of embodiments of the double offset
device 10 is
that its versatility and utility permits retrofit installation and
maintenance, since typically
multiple spaced devices 10 are used to support the pipe 12 over its length.
For example,
FIG. 3 shows another location where the device can be attached to the pipe 12
(denoted by
arrow PP) and the support beam 14 (denoted by arrow PB). Embodiments of the
double
offset device 10 desirably comprise an opening, slot or cavity that provides a
snap-on
mating or connection with the outer diameter or perimeter of the pipe 12.
[0039] Thus, desirably additional double offset devices 10 can be
conveniently
installed to provide greater support (and/or to replace any worn out devices)
without
disassembly of the system installation. This significant advantage saves on
cost and time
and cannot be achieved by a device that has a hole that circumscribes the
entire outer
diameter or perimeter of the pipe 12, wherein major time and cost has to be
expended to
disassemble and reassemble the entire installation.
[0040] The pipe 12, in some embodiments, comprises a thermoplastic CPVC
(chlorinated poly vinyl chloride) pipe and associated fitting material. In
some embodiments,
the pipe 12 can be used for carrying or transporting fluid (liquid and/or gas)
for fire
suppression or sprinkler systems and other plumbing applications. The pipe 12
can also be
used for potable water distribution, corrosive fluid handling in industry, gas
(e.g. natural
gas) distribution, among others, with efficacy, as needed or desired. Though
typically the
inner cross-section of the pipe 12 is generally circular, in modified
embodiments, the pipe
12 can efficaciously comprise an ellipsoid, oval or polygonal cross-section,
as needed or
desired.
[00411 The pipe 12, in some embodiments, is manufactured by extrusion in
sizes
in the range from about 1/4 inch to about 12 inch nominal inner diameter,
including all values
and sub-ranges therebetween. For many plumbing systems, the pipe 12 is
manufactured by
extrusion in sizes in the range from about 1/4 inch to about 2 inches nominal
inner diameter,
including all values and sub-ranges therebetween.
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[00421 In some embodiments, the pipe 12 can serve as a conduit,
passageway or
protective cover for one or more transmission lines. These can include,
without limitation,
fluid carrying lines or pipes, electrical lines such as cables and the like,
and combinations
thereof, as needed or desired.
[0043] The beam 14, in some embodiments, comprises wood or a wooden
material. In this case, the fasteners or screws 16, 17 can be used to create
respective
openings 18, 19 without the need for pre-drilling to connect or mount the
double offset
device 10 to the beam 14.
[00441 The beam 14, in some embodiments, comprises a metal or alloy such
as
steel or the like. In this case, the openings 18, 19 can be pre-drilled in the
beam 14 to
receive respective fasteners or screws 16, 17 to connect or mount the double
offset device
to the beam 14.
[0045] The beam 14 typically comprises a general rectangular cross-
section and
spans lengthwise generally horizontally below a ceiling or the like. In
modified
embodiments, the double offset device 10 can be efficaciously connected or
mounted to
other support structures or surfaces, including but not limited to, side walls
or beams which
may be generally vertically or angularly oriented, as needed or desired.
[00461 In modified embodiments, the pipe 12 and/or the beam 14 can be
fabricated by various other techniques, mounted in other orientations,
configured in other
dimensional and geometrical manners, and can comprise various other materials.
For
example, the pipe 12 and/or the beam 14 can efficaciously comprise other
suitable metals,
alloys, ceramics, plastics, thermoplastics, organic materials and the like,
and combination
thereof, as needed or desired.
[0047] Any of the embodiments of the double offset pipe hanger and
restrainer
(such as the double offset device, attachment, fitting or mount 10) disclosed,
taught or
suggested herein desirably comprise a suitably strong material. In some
embodiments, the
double offset device 10 (including its modified embodiments) comprises an
alloy such as
steel, for example, 16 gauge pre-galvanized carbon steel.
[0048] In other embodiments, the double offset device 10 (including its
modified
embodiments) can efficaciously comprise other suitable alloys, metals,
ceramics, plastics,
thermoplastics, organic materials and the like, and any combinations thereof,
as needed or
desired.
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[0049] Any of the embodiments of the double offset pipe hanger and
restrainer
(such as the double offset device, attachment, fitting or mount 10) disclosed,
taught or
suggested herein can be fabricated or manufactured by utilizing a wide variety
of techniques
or methods. In some embodiments, the double offset device 10 (including its
modified
embodiments) is fabricated by stamping, bending and/or punching operations a
generally
flat sheet of material and, in some embodiments, comprises an integral unit
and/or is
integrally formed.
10050] Advantageously, such a manufacturing process is especially suited
for
automated assembly lines, wherein stamping, punching and bending operations
can be
performed at high speeds and pick-and-place robotic arms or systems can
efficiently
manipulate the component(s) and control the manufacturing process. Moreover,
the
simplicity and speed of this manufacturing method results in an end product
that is
economical to manufacture, and thus is desirably inexpensive.
[00511 In other embodiments, the double offset device 10 (including its
modified
embodiments) can efficaciously be fabricated by casting, forging, molding,
machining,
lasing, laser processing, welding, gluing, adhesively fixing, and any
combinations thereof
including stamping, bending and/or punching operations, among others, as
required or
desired. The double offset device 10 (including its modified embodiments) can
efficaciously be manufactured by fabricating separate portions and then
joining these
together to form the device. Preferably, however, the device is integrally
formed of a single
piece of material.
Some Double Offset Pipe Support Embodiments
[0052] FIGS. 4-7 show different views of some embodiments of a double
offset
or standoff pipe hanger and restrainer, or double offset support device 10.
The double offset
support device 10 generally comprises a proximal mounting portion, section or
flange 20, a
distal connection or attachment portion or section 22, and an intermediate
medial main body
portion or section 24.
[0053] The proximal mounting portion 20 is attachable to the beam 14 or
other
support structure and, in some embodiments, comprises a generally rectangular
flat plate or
flange 30 with a pair of optimally spaced holes, opening or cavities 32, 34.
The holes 32, 34
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are configured and/or adapted to receive respective fasteners, screws, bolts
or connector pins
16, 17 that extend into respective beam holes or openings 18, 19.
[00541 The holes 32, 34, in some embodiments, are desirably spaced such
that
the positions of the fasteners, screws, bolts or connector pins 16, 17 are
optimized. This
advantageously allows for the use of smaller size fasteners 16, 17, for
example, screws of
smaller diameter and length, which in turn can save on the installation cost.
[0055] In some embodiments, the proximal mounting portion 20 and/or its
generally flat plate or flange 30 is oriented or angled generally
perpendicular to the medial
main body portion or section 24 and/or the distal connection or attachment
portion or
section 22. In modified embodiments, the proximal mounting portion 20 and/or
its
generally flat plate or flange 30 can efficaciously be oriented or angled in
other manners
relative to the medial main body portion or section 24 and/or the distal
connection or
attachment portion or section 22, as needed or desired.
[0056] The intermediate medial main body portion or section 24, in some
embodiments, generally comprises a generally flat trapezoidal plate 40.
Advantageously,
the medial plate 40 does not have any undesirable holes, cut-outs or bends
that can cause
adverse stress concentration locations or points, thereby providing optimized
device
structural integrity and strength.
[0057] In some embodiments, the length or span of the generally flat
trapezoidal
plate 40 is flared, tapered or reduced in the direction extending between the
proximal
portion 20 and the distal portion 22, to desirably reduce the amount of
material used to
fabricate the device without comprising on device structural strength and
integrity. In
modified embodiments, the medial flat plate 40 may be efficaciously comprise a
generally
fixed length or span, or may comprise other suitable configurations, as needed
or desired.
[0058] The intermediate medial main body portion or section 24 and/or
the
generally flat trapezoidal plate 40, in some embodiments, transitions or
connects with the
proximal mounting portion 20 and/or its generally flat plate or flange 30 by a
generally
curved portion 42. In modified embodiments, the intermediate medial main body
portion or
section 24 and/or the generally flat trapezoidal plate 40 can efficaciously
connect or
transition with the proximal mounting portion 20 and/or its generally flat
plate or flange 30
in other suitable manners, for example, but not limited to, a generally sharp-
cornered
perpendicular or angular connection, as needed or desired.
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[0059] In some
embodiments, the intermediate medial main body portion or
section 24 comprises a generally curved portion 44 that connects or
transitions the medial
plate 40 to an inner generally straight supporting rib, rim, ridge or
protrusion 46 of the
medial portion 24. The supporting rib, rim, ridge or protrusion 46
advantageously optimizes
or enhances the device structural integrity and/or strength. In modified
embodiments, the
intermediate medial plate 40 can efficaciously connect or transition with the
supporting rib
46 in other suitable manners, for example, but not limited to, a generally
sharp-cornered
perpendicular or angular connection, as needed or desired.
[0060] The
supporting rib, rim, ridge or protrusion 46, in some embodiments,
extends generally perpendicular to the generally flat trapezoidal medial plate
40, and
extends on only one side of the generally flat trapezoidal medial plate 40. In
modified
embodiments, a complementary and/or opposing supporting rib, rim, ridge or
protrusion
similar to the rib 46 can be provided on the other side of the generally flat
trapezoidal
medial plate 40 with efficacy, as needed or desired.
[0061] The distal
connection or attachment portion or section 22, in some
embodiments, generally comprises a generally flat curved plate 50 and a
specially designed
generally curved or semi-circular opening, slot or cavity 52 that receives the
pipe 12. In
modified embodiments, the distal plate 50 can efficaciously comprise other
suitable shapes,
for example, polygonal or the like and combinations thereof, as needed or
desired.
[0062]
Advantageously, the distal connection or attachment portion or section 22
and/or the opening, slot or cavity 52 receives that pipe 12 in a snap-on (or
press-fit) fashion
and provides the desired support against undesirable sway and seismic
disturbances by
taking into consideration that almost all forces of interest acting on the
pipe 12 will be in a
generally vertical or z-direction. Thus, wastage of precious material is
mitigated and the
device design also allows for retrofit connection, as discussed in more detail
below.
[0063] The distal
connection or attachment portion or section 22 of
embodiments of the invention advantageously provides a double offset or
standoff for the
pipe 12 which is received in the double offset opening, slot or cavity 52
relative to the beam
14. The double offset desirably provides clearance space for the pipe 12
relative to the
beam 14.
[0064] The double
offset, in some embodiments, is provided in the x- and z-
directions relative to the beam 14. Stated differently, the double offset is
provided in two
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=
directions which are respectively generally perpendicular and parallel to the
beam 14 (and or
its mounting surface). In other words, in some embodiments, the double offset
is provided
in two directions which are respectively generally perpendicular and parallel
to the device
distal portion 20 (and/or its generally flat mounting flange 30).
[0065] In some embodiments, the distal connection or attachment portion
or -
section 22 comprises a generally curved portion 54 that connects or
transitions the distal
plate 50 to art inner generally curved or semi-circular supporting rib, rim,
ridge or protrusion
56 of the distal portion 22. The supporting rib, rim, ridge or protrusion 56
advantageously
provides pipe support and optimizes or enhances the device structural
integrity and/or
strength. In modified embodiments, the distal plate 50 can efficaciously
connect or
transition with the supporting rib 56 in other suitable manners, for example,
but not limited
to, a generally sharp-cornered perpendicular or angular connection, as needed
or desired.
[0066] The supporting rib, rim, ridge or protrusion 56, in some
embodiments,
extends generally perpendicular to the generally flat curved distal plate 50,
and extends on
only one side of the generally flat curved distal plate 50. In modified
embodiments, a
complementary and/or opposing supporting rib, rim, ridge or protrusion similar
to the rib 56
can be provided on the other side of the generally flat curved distal plate 50
with efficacy, as
needed or desired.
[0067] The generally curved or semi-circular pipe-receiving opening,
slot or
cavity 52 is generally defined by a closed portion, end or surface 58 and an
open portion,
end or surface 60. The closed portion, end or surface 58, in some embodiments,
is generally
curved or semicircular in shape to generally conform to the outer contour or
perimeter of the
pipe 12 which mechanically contacts or abuts against the closed portion, end
or surface 58
when it is received in the opening or slot 52. Of course, in modified
embodiments, the
shape of the closed portion, end or surface 58 may be modified depending on
the outer
contour of the pipe, conduit or tube to be supported by the double offset
device.
[0068] The closed portion, end or surface 58, in some embodiments, is
generally
defined by the inner surface of the generally curved or semi-circular
supporting rib, rim,
ridge or protrusion 56 (or the rib 56 itself) and the adjacent generally
curved or semi-circular
inner surface of the distal plate 50 (or the adjacent generally curved or semi-
circular inner
surface of the distal plate 50 itself). In modified embodiments, and as
indicated above, the
inner surface of a complementary and/or opposing supporting rib, rim, ridge or
protrusion
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similar to the rib 56 can be provided on the other side of the generally flat
curved distal plate
50 with efficacy, as needed or desired, and this rib surface (or the rib
itself) can also form
part of the closed portion, end or surface 58.
[0069] In some embodiments, the medial portion rib 46 and the distal
portion rib
56 are coextensive and their transition point or location generally defines a
flat surface or
portion 62 of the slot closed end 58. The flat surface or portion 62 is
adjacent or proximate
the slot open end 60.
[0070] The flat surface or portion 62, in some embodiments, is generally
defined
by an inner generally flat surface of the otherwise generally curved or semi-
circular
supporting rib, rim, ridge or protrusion 56 and the adjacent inner generally
flat surface of the
distal plate 50. In modified embodiments, and as indicated above, the inner
surface of a
complementary and/or opposing supporting rib, rim, ridge or protrusion similar
to the rib 56
can be provided on the other side of the distal plate 50 with efficacy, as
needed or desired,
and can also form part of the flat surface or portion 62.
[0071] On advantage of embodiments of the flat surface or portion 62 is
that it
improved provides pipe support in the generally vertical direction. Another
advantage of
embodiments of the flat surface or portion 62 is that it facilitates entry of
the pipe 12 into
the opening or slot 52.
[0072] In some embodiments, a generally distal-most portion of the slot
closed
end 58 is defined by a generally curved surface or portion 64 which is also
proximate a
junction of the slot closed and open ends 58, 60. The generally curved surface
or portion 64
is substantially opposed to the flat surface or portion 62 and, in some
embodiments,
facilitates in providing a snap-on type connection, fit or attachment to the
pipe 12.
[0073] This desirable snap-on type connection, fit or attachment between
the
pipe 12 and the double offset device 10 of embodiments of the invention is
achieved by
providing a controlled and/or predetermined degree of device resilience,
flexibility,
springiness, elasticity or pliability while maintaining adequate device
structural strength and
integrity. Thus, during the process of securing the pipe 12 to the device
distal portion 22,
the distal portion 22, and/or the distal plate 50, and/or the distal opening,
cavity or slot 52,
and/or the distal rib 56, and/or the distal closed surface 58, and/or the
curved end portion 64
can undergo temporary deformation, for example, plastic deformation, to
resiliently receive
and snap-on to the pipe 12.
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CA 02618941 2008-01-24
[0074] In some embodiments, a generally distal-most portion of the rib
56
comprises a hook-like or curved portion, section or surface 66, adjacent the
curved end
portion 64, which is bent in a generally opposed direction relative to most of
the remainder
part of the rib 56 (and/or the curved end portion 64). This hook-like or
curved portion,
section or surface 66, in some embodiments, is a feature that can be a
consequence of
manufacturing the double offset device 10 from a generally flat strip of
material and then
subjecting the strip to bending operations (in conjunction with stamping
and/or punching
operations), or he like.
[0075] In some embodiments, the double offset pipe hanger and restrainer
10 is
specially configured and dimensioned to support an industry standard 1" CPVC
pipe
(nominal inner diameter of about 1 inch). As the skilled artisan will
appreciate the double
offset device of embodiments of the invention can be efficaciously utilized to
support other
loads, as needed or desired. The following dimensions are exemplary of a
double offset
device 10 particularly suited for supporting an industry standard 1" CPVC
pipe. As the
skilled artisan will also appreciate, the offset or standoff provided by the
following
exemplary dimensions can be varied with efficacy, as needed or desired.
[0076] Referring in particular to FIG. 5, in some embodiments, the
distance or
length L51 is about 10.9 cm (4.283 inches), the distance or length L51 is
about 5.5 cm (2.158
inches), the distance or width W51 is about 5.5 cm (2.158 inches), the
diameter D51 is about
3.3 cm (1.315 inches), the angle 051 is about 38.18 , the angle 052 is about
121.94 , the angle
053 is about 202.00 , the radius of curvature R51 is about 6.4 mm (0.250
inch(es)), the radius
of curvature R52 is about 7.9 mm (0.312 inch(es)), the radius of curvature R53
is about 3.4
cm (1.345 inches), and the radius of curvature R54 is about 2.6 cm (1.022
inches). In
modified embodiments, the double offset pipe hanger and restrainer 10 can be
dimensioned
in other manners with efficacy, as needed or desired.
[00771 Referring in particular to FIG. 6, in some embodiments, the
distance or
length 1.61 is about 5.4 cm (2.125 inches), the distance or length L62 is
about 3.2 cm (1.250
inches), the distance or length 43 is about 9.5 mm (0.375 inch(es)), the
distance or length
W6I is about 2.4 cm (0.962 inch(es)), the distance or length W62 is about 7.9
mm (0.312
inch(es)), the diameter D61 is about 5.1 mm (0.201 inch(es)), and the radius
of curvature R61
is about 2.5 mm (0.100 inch(es)). In modified embodiments, the double offset
pipe hanger
and restrainer 10 can be dimensioned in other manners with efficacy, as needed
or desired.
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CA 02618941 2008-01-24
[00781 Referring in particular to FIG. 7, in some embodiments, the
distance or
length L71 is about 2.4 cm (0.962 inch(es)), and the distance or length Lr is
about 7.9 mm
(0.312 inch(es)). In modified embodiments, the double offset pipe hanger and
restrainer 10
can be dimensioned in other manners with efficacy, as needed or desired.
Some Other Double Offset Pipe Support Embodiments
[00791 FIGS. 8-11 show different views of some embodiments of a double
offset or standoff pipe hanger and restrainer, or double offset support device
10'. The
double offset support device 10' is substantially the same as the double
offset support
device 10 (for example, see FIGS. 4-7) except that it is dimensioned to
accommodate a pipe
12 of a different size. Like reference numerals in these figures refer to like
elements
disclosed, taught or suggested herein.
[0080] In some embodiments, the double offset pipe hanger and restrainer
10' is
specially configured and dimensioned to support an industry standard 3/4" CPVC
pipe
(nominal inner diameter of about 34 inch(es)). As the skilled artisan will
appreciate the
double offset device of embodiments of the invention can be efficaciously
utilized to
support other loads, as needed or desired. The following dimensions are
exemplary of a
double offset device 10' particularly suited for supporting an industry
standard 3/4" CPVC
pipe. As the skilled artisan will also appreciate, the offset or standoff
provided by the
following exemplary dimensions can be varied with efficacy, as needed or
desired.
[0081] Referring in particular to FIG. 9, in some embodiments, the
distance or
length 1,91 is about 5.4 cm (2.125 inches), the distance or length 1,92 is
about 5.1 cm (2.025
inches), the distance or width W91 is about 5.1 cm (2.025 inches), the
diameter D91 is about
2.7 cm (1.050 inches), the angle 091 is about 37.37 , the angle 091 is about
124.53 , the angle
093 is about 204.00 , the radius of curvature R91 is about 6.4 mm (0.250
inch(es)), the radius
of curvature R9-, is about 4.8 mm (0.188 inch(es)), and the radius of
curvature R93 is about
4.8 mm (0.188 inch(es)). In modified embodiments, the double offset pipe
hanger and
restrainer 10' can be dimensioned in other manners with efficacy, as needed or
desired.
[0082] Referring in particular to FIG. 10, in some embodiments, the
distance or
length L101 is about 5-4 cm (2.125 inches), the distance or length L102 is
about 3.2 cm (1.250
inches), the distance or length L103 is about 9.5 mm (0.375 inch(es)), the
distance or length
W101 is about 2.4 cm (0.962 inch(es)), and the distance or length W[02 is
about 7.9 mm
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CA 02618941 2008-01-24
(0.312 inch(es)). In modified embodiments, the double offset pipe hanger and
restrainer 10'
can be dimensioned in other manners with efficacy, as needed or desired.
[0083] Referring in particular to FIG. 11, in some embodiments, the
distance or
length L111 is about 2.4 cm (0.962 inch(es)), and the distance or length L11/
is about 7.9 mm
(0.312 inch(es)). In modified embodiments, the double offset pipe hanger and
restrainer 10'
can be dimensioned in other manners with efficacy, as needed or desired.
Double Offset Pipe Support Embodiments With Protective Tab
[0084] FIG. 12 shows some embodiments of a double offset pipe hanger and
restrainer, or double offset or standoff pipe support device 10a comprising a
locking tab 70
and supporting the pipe, conduit, tube or utility device 12. Advantageously,
the tab, flap,
stub or strip 70, in some embodiments, is relatively small in size and can be
bent during
installation to further facilitate in securing the pipe 12 to the double
offset device 10a after
installation. This desirably, in some cases, can provide additional support in
a generally
vertical or z-direction.
[0085] The protective tab 70 can be efficaciously used in conjunction
with any
of the double offset device embodiments disclosed, taught or suggested herein,
as needed or
desired. Like reference numerals in this figure refer to like elements
disclosed, taught or
suggested herein.
Double Offset Pipe Support Embodiments With Modified Mounting Portion
[0086] FIGS. 13-15 show different views of some embodiments of a double
offset or standoff pipe hanger and restrainer, or double offset support device
10b. The
double offset support device 10b comprises a modified proximal mounting
portion or
section 20b, and can efficaciously incorporate any of the features of
embodiments of double
offset support devices disclosed, taught or suggested herein. Like reference
numerals in
these figures refer to like elements disclosed, taught or suggested herein.
[0087] The proximal mounting portion or section 20b, in some
embodiments,
comprises a pair of spaced generally rectangular flat plates or flanges 30b1,
30b2 that are
optimally spaced by a predetermined distance to fit over the sides of the beam
14 or other
support structure, so as to secure the double offset device 10b to the beam
14.
-16-
CA 02618941 2008-01-24
[0088] The proximal flanges 30131, 30b2 comprise respective holes,
openings or
cavities 34b, 32b which are configured and/or adapted to receive respective
fasteners,
screws, bolts or connector pins that extend into respective beam holes or
openings to secure
the double offset device 10b to the beam 14 or other support structure. The
holes 32b, 34b,
in some embodiments, are desirably spaced such that the positions of the beam
fasteners,
screws, bolts or connector pins are optimized. This advantageously allows for
the use of
smaller size fasteners, for example, screws of smaller diameter and length,
which in turn can
save on the installation cost.
Method Embodiments of Using the Double Offset Device Embodiments
[0089] The methods which are described and illustrated herein are not
limited to
the sequence of acts or steps described, nor are they necessarily limited to
the practice of all
of the acts or steps set forth. Other sequences of acts or steps, or less than
all of the acts or
steps, or simultaneous occurrence of the acts or steps, may be utilized in
practicing
embodiments of the invention.
[0090] FIGS. 16 and 17 are simplified flow charts in block diagram
format or
representation which represent embodiments of methods of using the double
offset pipe
hanger and restrainer (or double offset device) 10. It is to be understood
that though FIGS.
16 and 17 refer to the double offset device 10, the methods described and
illustrated in
conjunction with these figures are substantially equivalently applicable to
other
embodiments of the double offset device taught or suggested herein, such as
the double
offset device 10', 10a, 10b.
[0091] The embodiments of FIG. 16 generally depict steps, acts or
control
blocks, boxes or elements referred to by reference numerals 71, 72, 73, 74,
76, 76, 78, 80,
82 and 84. The embodiments of FIG. 17 provide a more detailed illustration of
retrofit
and/or replacement techniques relating to the step(s), act(s) or control
block, box or element
84 which generally comprise steps, acts or control blocks, boxes or elements
referred to by
reference numerals 86, 88, 90, 92, 94, 96, 98 and 99.
[00921 FIGS. 16 and 17 illustrate certain embodiments of methods of
providing
a new or initial installation of embodiments of the double offset device 10.
Moreover,
FIGS. 16 and 17 illustrate certain embodiments of methods of retrofit and/or
replacement
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CA 02618941 2008-01-24
techniques for utilizing embodiments of the double offset device 10 which
desirably
highlight the versatility of the device 10 and its use.
[0093] Referring in particular to FIG. 16, in step or act 71, the device
10 is
installed to support the pipe 12 and is mounted to the beam or support
structure 14. Step or
act 71 generally comprises a device installation step or act 72 which
generally comprises a
step or act 73 to attach the device 10 to the beam 14 and a step or act 74 to
connect the
device 10 to the pipe 12. The order in which steps 73 and 74 are performed can
be varied
with efficacy, as needed or desired, depending on the particular situation,
for example, a
new or initial installation, a retrofit installation or a replacement
installation.
[0094] In step 74, embodiments of the double offset device 10 are
conveniently
snapped on or connected to the pipe 12 through the slot open end or portion 60
such that
only a predetermined portion of the pipe outer contour, diameter, perimeter,
surface or
periphery is generally circumscribed by and in mechanical contact with (or
abuts with) the
slot closed end or portion 58 while the remaining corresponding portion of the
pipe outer
contour, diameter, perimeter, surface or periphery is exposed or uncovered.
The double
offset device 10 is advantageously configured such that the predetermined
portion of the
pipe outer contour, diameter, perimeter, surface or periphery that is
generally circumscribed
by and in mechanical contact with (or abuts with) the slot closed end or
portion 58 provides
the desired support against undesirable sway and/or seismic disturbances.
[0095] At step, act or control box 76 a decision is made whether to
install an
additional device 10. Typically, depending at least partially on the pipe
size, more than one
of the double offset devices 10 are used to support the pipe.
[0096] If it is decided to install an additional device 10, step 71 is
repeated until
the decision is made that no further devices 10 need to be installed. Control
box or block 78
schematically illustrates that the installation is substantially complete now.
[0097] An additional step or act 80 can be provided, in some
embodiments, to
study if any change(s) are to be made to the installation and/or to inspect
the installation. At
this point, any fine-tuning changes may be made.
[0098] In step, act or control box 82 a decision is made whether or not
to make
changes to the installation. For a new or initial installation, except for
some possible fine-
tuning, typically no substantial changes will be made and the flow diagram
returns to the
installation complete control block or box 78,
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CA 02618941 2008-01-24
[0099] However, after a period of time, steps, acts or control boxes 80
and/or 82
can be revisited, as needed or desired. This may be a period of few months or
years,
depending on the particular situation. If a decision is made to implement
changes, then step
or act 84 is performed to implement the needed or desired changes to the
installation.
[0100] Referring now in particular to FIG. 17, the control module 84 is
illustrated in greater detail in this drawing. The control module 84 generally
comprises a
step, act or control box 86 to decide whether or not to replace the pipe 12, a
step, act or
control box 88 to decide whether or not to add an additional device 10 to the
installation,
and a step, act or control box 90 to decide whether or not to replace an
existing device 10.
[0101] Of course, if it is decided that no changes are to be made, the
flow
diagram returns to the installation complete control box 78. Then after a
period of time, the
steps, acts or control boxes 80 and/or 82 can be revisited, as needed or
desired.
[0102] If a decision is made to replace the existing pipe 12 with
another one,
then at step or act 92 the pipe 12 is removed. Another pipe 12 may be
installed, for
example, a new one to replace an older damaged pipe or, in some cases, a new
one with
different material properties or different size or outer diameter to provide
for the flow of a
different fluid or a larger fluid flow rate.
[0103] Advantageously, because embodiments of the double offset device
10,
provide a snap-on feature and/or a pipe-receiving slot open end 60 to receive
the pipe 12 in
the distal slot, opening or cavity 52, the pipe 12 can be easily and quickly
removed from the
device(s) 10 without the time-consuming need to disassemble and reassemble the
entire
installation.
[0104] In step, act or control box 94 it is determined whether or not
the new pipe
size (typically outer diameter) is the same a before. If it is, in act or step
96 the new pipe 12
is installed by simply fitting it into the double offset device(s) 10.
[0105] Advantageously again, because embodiments of the double offset
device
10, provide a snap-on feature and/or a pipe-receiving slot open end 60 to
receive the pipe 12
in the distal slot, opening or cavity 52, the new pipe 12 can be easily and
quickly fitted into
the device(s) 10 without the time-consuming need to disassemble and reassemble
the entire
installation.
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CA 02618941 2008-01-24
[0106] If no other changes are to be made to the installation, the flow
diagram
then returns to the installation complete control box 78. Then after a period
of time, the
steps, acts or control boxes 80 and/or 82 can be revisited, as needed or
desired.
[0107] If a decision is made to add an additional double offset device
10 to the
installation, then flow diagram returns to the device installation step, act
or control box 71.
Then one or more additional devices 10 can be added to the installation, for
example, to
provide enhanced pipe support, as needed or desired.
[0108] Advantageously yet again, because embodiments of the double
offset
device 10, provide a snap-on feature and/or a pipe-receiving slot open end 60
to receive the
pipe 12 in the distal slot, opening or cavity 52, the pipe 12 can be easily
and quickly fitted
into the device(s) 10 without the time-consuming need to disassemble and
reassemble the
entire installation.
[0109] If no other changes are to be made to the installation, the flow
diagram
then returns to the installation complete control box 78. Then after a period
of time, the
steps, acts or control boxes 80 and/or 82 can be revisited, as needed or
desired.
[01101 If a decision is made to replace an existing device 10 of the
installation,
then at step or act 99, the device 10 is removed by detaching it from the beam
14 and
disconnection it from the pipe 12. A device 10 may need to be replaced, for
example, in the
unlikely event that it suffers some kind of damage.
[0111] The flow diagram then returns to the device installation step,
act or
control box 71. One or more devices 10 can be added to replace existing
devices 10 of the
installation, as needed or desired.
[0112] Advantageously still again, because embodiments of the double
offset
device 10, provide a snap-on feature and/or a pipe-receiving slot open end 60
to receive the
pipe 12 in the distal slot, opening or cavity 52, the device(s) 10 can be
easily and quickly
removed from the pipe 12 and replaced with new device(s) 10 without the time-
consuming
need to disassemble and reassemble the entire installation.
[0113) If no other changes are to be made to the installation, the flow
diagram
then returns to the installation complete control box 78. Then after a period
of time, the
steps, acts or control boxes 80 and/or 82 can be revisited, as needed or
desired.
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CA 02618941 2008-01-24
Some Advantages of Embodiments of the Double Offset Device
[0114] Embodiments of the double offset pipe hanger and restrainer or
double
offset device 10 (and its modified embodiments such as the double offset
devices 10', 10a,
10b) provide a plurality of unique advantages and benefits. The double offset
device 10
(and its modified embodiments such as the double offset devices 10', 10a, 10b)
are
specially configured and designed to optimally restrain movement of the pipe
12 during
seismic and/or sway events, while providing adequate support of the load.
[0115] Advantageously, embodiments of the pipe-receiving opening or slot
52
connects to the pipe 12 in a snap-on fashion and provides the needed support
in the
generally vertical direction (or z-direction) wherein the forces of interest
are concentrated.
One advantage of this is that the specially configured slot 52 saves on
wastage of material
while providing the desired support in the direction(s) where most seismic and
sway forces
are exerted. Another advantage is that, this allows retrofit and/or
replacement installation of
the double offset device 10 (and its modified embodiments such as the double
offset device
10', 10a, 10b) without the cumbersome tasks associated with disassembling and
reassembling the entire installation. This versatility of embodiments of the
invention saves
precious time and cost.
[0116] Embodiments of the double offset device 10 (and its modified
embodiments such as the double offset devices 10', 10a, 10b) can be
conveniently snapped
on or connected to the pipe 12 through the slot open end or portion 60 such
that only a
predetermined portion of the pipe outer contour, diameter, perimeter, surface
or periphery is
generally circumscribed by and in mechanical contact with (or abuts with) the
slot closed
end or portion 58 while the remaining portion of the pipe outer contour,
diameter, perimeter,
surface or periphery is exposed or uncovered. The double offset device is
advantageously
configured such that the predetermined portion of the pipe outer contour,
diameter,
perimeter, surface or periphery that is generally circumscribed by and in
mechanical contact
with (or abuts with) the slot closed end or portion 58 provides the desired
support against
undesirable sway and/or seismic disturbances.
[0117] In some embodiments, the double offset device 10 (and its
modified
embodiments) are configured to provide a generally flat portion 62 for
advantageously
supporting the pipe 12. In some embodiments, such as that of FIG. 12, the
double offset
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CA 02618941 2014-08-06
device 10a comprises the protective tab 70 to further support the pipe 12 and
provide
enhanced benefits.
[0118] In some embodiments, the arrangements and/or spacing of the
fastener
receiving holes 32, 34 (and/or 32b, 34b) is advantageously optimized such that
it permits
the use of smaller fastening devices. This desirably saves on cost. Moreover,
these savings
are multiplied since many double offset devices are typically utilized in a
pipe-supporting
installation.
[0119] In some embodiments, the double offset device 10 (and its modified
embodiments such as the double offset devices 10', 103, 10b) are desirably
configured to
prevent or mitigate undesirable stress concentration(s) which could lead to
fracture or
breakage location(s) or points, thereby advantageously preventing device
failure or fracture.
Advantageously, this can be accomplished by not incorporating any strength
compromising
bends or cut-outs while maintaining suitable or optimal structural strength.
[0120] As indicated above, the methods which are described, illustrated,
disclosed, taught and/or suggested herein are not limited to the sequence of
acts or steps
described, nor are they necessarily limited to the practice of all of the acts
or steps set forth.
Other sequences of acts or steps, or less than all of the acts or steps, or
simultaneous
occurrence of the acts or steps, may be utilized in practicing embodiments of
the invention.
[0121] It is to be understood that any range of values disclosed, taught
or
suggested herein comprises all values and sub-ranges therebetween. For
example, a range
from 5 to 10 will comprise all numerical values between 5 and 10 and all sub-
ranges
between 5 and 10.
[0122] From the foregoing description, it will be appreciated that a
novel
approach for supporting loads has been disclosed. While the components,
techniques and
aspects of the invention have been described with a certain degree of
particularity, it is
manifest that many changes may be made in the specific designs, constructions
and
methodology herein above described without departing from the spirit and scope
of this
disclosure.
[0123] The scope of the claims should not be limited by the preferred
embodiments set forth in the examples, but should be given the broadest
interpretation consistent with the description as a whole.
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