U.S. patent application number 14/696762 was filed with the patent office on 2015-12-03 for coping cleat and system for roof blocking unit.
The applicant listed for this patent is OMG, Inc.. Invention is credited to Brian J. Adams, Tobias A. Friedkin, Christopher K. McCoy, Jerry D. McKinney, III, Karan P. Patel, William K. Pressley.
Application Number | 20150345143 14/696762 |
Document ID | / |
Family ID | 54701109 |
Filed Date | 2015-12-03 |
United States Patent
Application |
20150345143 |
Kind Code |
A1 |
Patel; Karan P. ; et
al. |
December 3, 2015 |
Coping Cleat and System for Roof Blocking Unit
Abstract
A cleat for use with a roof blocking unit has an integral leaf
spring formed as a bend in a web intermediate its front and rear
ends with a front side extending downward from the front end and a
rear side extending downward from the rear end. In a coping unit, a
diverter component defines a channel and is mounted over the cleat.
The channel is disposed at an acute angle relative to the cleat
web. In a coping assembly installation, a fluid impermeable
membrane is disposed over the top of a roof blocking unit with the
cleat mounted over the membrane and the diverter component mounted
over the cleat. A pair of coping caps is disposed over the cleat
and diverter in an offset arrangement with the channel beneath
adjacent coping cap edges. The spring leaf biases the caps with a
hook-like flange in engagement with a cleat flange.
Inventors: |
Patel; Karan P.; (Asheville,
NC) ; Adams; Brian J.; (Fletcher, NC) ; McCoy;
Christopher K.; (Asheville, NC) ; McKinney, III;
Jerry D.; (Candler, NC) ; Friedkin; Tobias A.;
(Weaverville, NC) ; Pressley; William K.; (Canton,
NC) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
OMG, Inc. |
Agawam |
MA |
US |
|
|
Family ID: |
54701109 |
Appl. No.: |
14/696762 |
Filed: |
April 27, 2015 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
|
|
62003250 |
May 27, 2014 |
|
|
|
Current U.S.
Class: |
52/300 ;
52/698 |
Current CPC
Class: |
E04D 3/405 20130101 |
International
Class: |
E04D 3/40 20060101
E04D003/40; E04D 13/15 20060101 E04D013/15 |
Claims
1. A cleat for a coping assembly for use with a roof blocking unit,
comprising: a web having opposed front and rear ends; a front side
integrally extending from the front end to an outwardly extending
distal flange; a rear side integrally extending from the rear end
to an outwardly extending distal flange; and a first integral
spring leaf formed from a bend in and extending from said web
intermediate the front and rear ends in a direction opposite from
the front and rear sides.
2. The cleat of claim 1, wherein said spring leaf defines a plane
that lies at an acute angle relative to the web.
3. The cleat of claim 2, wherein the spring leaf includes a bend at
the distal portion of the leaf.
4. The cleat of claim 2, wherein the plane defined by the spring
leaf lies at an angle of between approximately 15.degree. and
approximately 60.degree. relative to the web.
5. The cleat of claim 1, comprising a second integral spring leaf
extending from said web at the same approximate angle relative to
the web as the first spring leaf.
6. The cleat of claim 5, wherein the second integral spring leaf
extends from the web in the same relative direction as the first
integral spring leaf.
7. The cleat of claim 5, wherein the second integral spring leaf
extends from the web in the opposite relative direction from the
first integral spring leaf.
8. The cleat of claim 1, wherein said spring leaf is formed as a
cut in a portion of said web and upward bending of said
portion.
9. The cleat of claim 8, wherein said leaf is substantially
rectilinear formed by a substantially U-shaped cut in the web
defining an open end and bending along a substantially linear
portion of the web at the open end.
10. The cleat of claim 1, wherein the front end of the web
transitions to the front side in a compound bend defining a vertex
opposite the front side distal flange.
11. The cleat of claim 1, wherein the web defines a plane that is
substantially perpendicular to the front and rear sides.
12. The cleat of claim 1, wherein said spring leaf defines a plane
that lies at an angle of approximately 30.degree. relative to the
web.
13. A coping unit for a roof blocking unit comprising: a cleat
comprising a web having opposed first and second ends, a front side
integrally extending from the first end to an outwardly extending
distal flange, a rear side integrally extending from the second
end, and an integral spring leaf extending from said web in a
direction opposite from the front and rear sides; and a diverter
component comprising a central panel forming a diverter channel
with a front end and a rear end, a front panel integrally extending
from said front end, a rear panel integrally extending from said
rear end; wherein said diverter component is mounted over said
cleat and said front panel engages said front side in a
substantially surface-to-surface relationship, said rear panel
engages said rear side in a substantially surface-to-surface
relationship with the spring leaf biasing the central panel in the
direction opposite from the front and rear sides, and said channel
is disposed at an acute angle relative to said web.
14. The coping unit of claim 13, wherein the channel is angled
downward toward the rear side of the web.
15. The coping unit of claim 13, wherein the first end transitions
to the front side via a compound bend defining a vertex opposite
the distal flange.
16. The coping unit of claim 15, wherein the front panel extends
from said front end via a bend that mates substantially with the
vertex.
17. The coping unit of claim 13, wherein the diverter channel is
defined by a central web extending between opposite lateral edges,
each lateral edge being bent in the direction opposite from the
rear and front panels.
18. The coping unit of claim 13, wherein the diverter component is
substantially rigidly attached to the cleat in the mounted
configuration without an external fastener.
19. The coping unit of claim 13, wherein the diverter component
front panel includes a distal flange disposed and angled to
substantially abut the cleat first end flange.
20. A coping assembly installation comprising: a roof blocking unit
having a top surface extending between front and rear faces; a
fluid impermeable membrane disposed over said top surface; a cleat
mounted over said membrane and secured to said wall, the cleat
having an integral spring leaf extending away from said top surface
and a lower flange; a diverter component mounted over said cleat
and forming a drain recess disposed at an acute angle relative to
said top surface; and a pair of coping caps each having a lower
hook-like flange and extending transversely between opposite edges
disposed over said cleat and said diverter component in an offset
arrangement, such that said drain recess is disposed substantially
beneath adjacent edges of the coping caps, said spring leaf biasing
said caps away from said top surface to urge the lower hook-like
flange in each cap into engagement with the cleat flange.
Description
CROSS-REFERENCE TO RELATED APPLICATION
[0001] This application claims priority from U.S. Provisional
Application No. 62/003,250, filed May 27, 2014, for Cleat For
Parapet Coping Assembly, the entire disclosure of which is hereby
incorporated by reference in its entirety.
BACKGROUND
[0002] This disclosure relates generally to coping assemblies for
implementing waterproofing for a roof blocking unit, such as a
parapet wall. More particularly, the present disclosure relates to
coping system hardware which is employed for sealing the top of a
parapet wall of a building.
[0003] For coping systems to which the present disclosure relates,
cleats are spaced and secured across the top of the wall. A second
component, which may have several forms and is occasionally
referred to as a shoe, is placed over the cleat. The component has
a drain joint splice recess to divert water onto the roof. Coping
caps, which are typically in the form of pre-determined lengths
such as, for example, ten-foot lengths, and have an inverted
channel-shape structure, are mounted over the cleats. The cleats
with the drain recesses are disposed below the ends of the coping
caps. Water, which may pass between the ends of the coping caps,
flows onto the roof. The coping caps are typically resiliently
secured by lower hook-like flanges which engage lower flanges of
the cleats for securing the caps to the top of the wall.
[0004] The top of the parapet wall is typically initially covered
by a waterproof membrane. The coping system components are
dimensioned to accommodate the thickness dimensions of the parapet
wall. The cleats are typically formed from galvanized metal and
stainless steel and are secured to the top of the parapet wall over
the membrane by numerous methods including the use of fasteners
and/or adhesives. In many conventional systems, the cleat also has
a spring element that is mounted at the top of the cleat to provide
an upward spring bias. The biasing force is exerted against the
underside of the top panel of the cap to securely maintain the
coping cap to the cleat via the lower hook/flange engagement and
hence to the top of the wall.
SUMMARY
[0005] An embodiment of a cleat for a coping assembly has a web
with opposed front and rear ends. A front side integrally extends
from the front end to an outwardly extending distal flange. A rear
side integrally extends from the rear end to an outwardly extending
distal flange. A first integral spring leaf is formed from a bend
in and extends from the web intermediate the front and rear ends in
a direction opposite from the front and rear sides.
[0006] In another embodiment, a coping unit for a roof blocking
unit includes a cleat and a diverter component. The cleat has a web
with opposed first and second ends. A front side integrally extends
from the first end to an outwardly extending distal flange. A rear
side integrally extends from the second end. An integral spring
leaf extends from said web in a direction opposite from the front
and rear sides. The diverter component includes a central panel
that forms a diverter channel and has front and rear ends. A front
panel integrally extends from the front end, and a rear panel
integrally extends from the rear end. The diverter component is
mounted over the cleat with the front panel engaging the front side
in a substantially surface-to-surface relationship. The rear panel
engages the rear side in a substantially surface-to surface
relationship. The spring leaf biases the central panel in the
direction opposite from the front and rear sides. The channel is
disposed at an acute angle relative to the web.
[0007] In yet another embodiment, a coping assembly installation
comprises a roof blocking unit, a fluid impermeable membrane, a
cleat, a diverter component and a pair of coping caps. The roof
blocking unit wall has a top surface extending between front and
rear faces. The membrane is disposed over the top surface of the
wall. The cleat is mounted over the membrane and secured to the
wall. The cleat has an integral spring leaf that extending away
from the top surface and a lower flange. The diverter component is
mounted over the cleat and forms a drain recess disposed at an
acute angle relative to the top surface. The coping caps each have
a lower hook-like flange and extend transversely between opposite
edges. The caps are disposed over the cleat and diverter component
in an offset arrangement with the drain recess disposed
substantially beneath adjacent edges of the coping caps. The spring
leaf biases the caps away from the top surface to urge the lower
hook-like flange in each cap into engagement with the cleat
flange.
BRIEF DESCRIPTION OF THE DRAWINGS
[0008] Aspects of the preferred embodiment will be described in
reference to the drawings, where like numerals reflect like
elements:
[0009] FIG. 1 is an exploded view, portions shown in broken lines,
of a representative portion of a roof blocking unit and a coping
system incorporating a cleat in accordance with the disclosure;
[0010] FIG. 2 is an annotated, side sectional view, partly in
diagram form, of the roof blocking unit and the installed coping
system of FIG. 1;
[0011] FIG. 3 is a front elevation view, partly in phantom and
partly in diagram form, of a portion of the installed coping system
of FIG. 2;
[0012] FIG. 4 is an exploded view, partly in schematic,
illustrating an assembly stage for the coping system of FIG. 1;
[0013] FIG. 5 is an exploded view, partly in schematic,
illustrating a second assembly stage of the coping system of FIG.
1;
[0014] FIG. 6 is a top plan view, partly in diagram form, of a
preferred embodiment of a cleat employable in the coping
system;
[0015] FIG. 7 is a simplified elevation profile view, partly in
diagram form, of the cleat of FIG. 6;
[0016] FIG. 8 is a top plan view, partly in diagram form, of
another embodiment of a cleat employable in the coping system;
[0017] FIG. 9 is an elevation profile view, partly in diagram form,
of the cleat of FIG. 8;
[0018] FIG. 10 is a top plan view, partly in diagram form, of yet
another embodiment of a cleat employable in the coping system;
[0019] FIG. 11 is a simplified elevation profile view, partly in
diagram form, of the cleat of FIG. 10;
[0020] FIG. 12 is an elevation face view, partly in diagram form,
of the cleat of FIG. 10;
[0021] FIG. 13 is a perspective view of a drain joint splice
component for the coping system;
[0022] FIG. 14 is an annotated elevation profile view of the drain
joint splice component of FIG. 13;
[0023] FIG. 15 is an annotated, side sectional view, partly in
diagram form, of another embodiment of the coping assembly
installed on a roof blocking unit;
[0024] FIG. 16A is an exploded view of a pre-attached cleat-splice
unit according to the disclosure;
[0025] FIG. 16B depicts the pre-attached cleat-splice unit in
commercial distribution form;
[0026] FIG. 16C is an exploded view of a coping assembly, including
a transverse support member;
[0027] FIG. 17A depicts embodiments of inner and outer corner
coping caps for use in the disclosed assembly;
[0028] FIG. 17B depicts embodiments of end coping caps for use in
the disclosed assembly;
[0029] FIG. 18 is an annotated, side sectional view, partly in
diagram form, of an embodiment of the coping assembly installed on
a masonry wall;
[0030] FIG. 19 shows an embodiment of a cleat member for use with
deeper roof blocking units, including a top plan view and side
elevation profile and preferred dimensions;
[0031] FIG. 20 shows an embodiment of a cleat member for use with a
roof blocking unit with a short depth, including a front elevation,
top plan and side elevation views and preferred dimensions;
[0032] FIG. 21 shows an embodiment of a cleat member for use on a
tall roof blocking unit, including a front elevation, top plan and
side elevation views and preferred dimensions;
[0033] FIG. 22 shows an alternate embodiment of the disclosed
coping assembly for use in providing a flat upper surface or
installation on a curved roof blocking unit; and
[0034] FIG. 23 shows a top plan view and a side elevation view of
the cleat of FIG. 22, including preferred dimensions.
DETAILED DESCRIPTION
[0035] With reference to the drawings wherein like numerals
represent like parts throughout the several figures, a cleat which
is employed in a coping system or assembly 100 is generally
designated by the numeral 10. The preferred application of the
cleat 10 is in connection with a coping system which is used to
provide a water seal and improved aesthetics for the top of a roof
blocking unit (oftentimes a parapet wall).
[0036] With reference to FIGS. 1-3, a representative roof blocking
unit, here a parapet wall P, is typically arranged at the edge of a
roofing structure, and has a top which is crowned by a blocking B.
Additional roof edge blocking systems, such as that disclosed in
commonly owned U.S. Pat. No. 8,381,451 (disclosure incorporated
herein by reference), are also suitable for use with the disclosed
cleat 10 and coping system. A water-impervious membrane M lays over
the roofing structure and covers the top surface of the blocking B.
As will be further described below, the wall P has a front face
side and a back side (adjacent the roof). A multiplicity of cleats
10 receive a mounted joint splice or drain component 12 and a
plurality of the cleat/drain component units are secured to the top
of the wall P at pre-established spacings. The spacings correspond
generally to the length of a standard coping cap 14 which has a
typical transverse length of approximately 10 feet, though this
preferred length and spacing is nonlimiting. The ends of the coping
cap 14 are mounted over the cleat/drain component unit in
edge-to-edge relationship which oftentimes necessarily defines a
small gap G therebetween, as best illustrated in FIG. 3. The gap G
can be up to approximately 0.25 inches. In some embodiments,
adjacent coping caps 14 may meet in a flush edge-to-edge abutment
or even overlap slightly. Regardless of the exact relative
positioning of adjacent caps 14, the system is susceptible to fluid
leakage between the caps.
[0037] The cleats 10 are unitary components designed to receive and
securely mount elongated coping caps 14 to the top of the wall P.
The cleats 10 may be secured to the blocking B by stainless steel
or similar fasteners 16 or similar material such as zinc coated
fasteners, such as screws, and optionally washers 18. The cleats 10
are principally dimensioned to accommodate the thickness of the
parapet wall. Various representative sizes and configurations of
the disclosed cleat are designated as cleat 10A, 10B and 10C in
FIGS. 6-7, 8-9 and 10-12. The cleats 10 are preferably manufactured
from 20 gauge to 16 gauge galvanized metal and, for some
applications, 20 gauge to 16 gauge stainless steel.
[0038] The cleat has a central planar web 20 of uniform length
(generally commensurate with or slightly longer than the parapet
wall is deep) ranging from approximately 4 inches to 36 inches and
a uniform lateral width typically of approximately 8 inches to 16
inches, and more preferably approximately 12 inches. A back side 22
integrally extends via a bend from one end of the web approximately
perpendicular to the web and terminates in a lower laterally
extending, outwardly facing flange 24. The front end of the web
integrally connects via an upper compound bend forming an upper
vertex 30 with a front side 32 which extends downwardly a distance
greater than that of back side 22 at an orientation approximately
perpendicular to the plane of the web. The front side 32 terminates
in a lower laterally extending, frontally facing flange 34. The
front side 32 may also include a pair of laterally spaced slots
36.
[0039] The cleat 10 has an integral spring leaf 50 which extends
upwardly from a plane defined by the web 20 at a preferred angle of
approximately 15-20.degree.. In this embodiment, the distal end of
the integral leaf has a bent end portion 52. End portion 52
functions to reinforce the leaf 50 when the system is assembled.
The integral leaf 50 provides an upward supporting bias against an
installed overlying coping cap 14, as will be further
described.
[0040] With additional reference to FIGS. 13 and 14, an auxiliary
diverter drain component (splice) 12 is dimensioned to mount over
the cleat 10 in a substantially central nested relationship.
Component 12 is typically manufactured from metal, such as
aluminum, and is also available in 24 gauge galvanized metal. The
drain component 12 includes a central web 60 with laterally spaced
multi-folded sides 62, defining a channel. The sides cooperate to
provide a drain recess or channel for diverting water which may
flow through between adjacent coping caps 14, such as through the
gap G, onto the roof (not illustrated). A back panel 64 integrally
extends from the central web in essentially a downward direction. A
front panel 66 integrally extends from the front of the central web
and may include a forwardly facing terminal flange 68. Upon
mounting the components over the cleat 10, the front panel 66 is
dimensioned to mate with the front side 32 of the cleat in a
substantially surface-to-surface relationship. A pair of rearward
protrusions 67 may be punched in the front face 66 and are
positioned so that when the component 12 is nested over the cleat,
the protrusions 67 mate with the openings 36 of the cleat to form a
closely received, nested unitized assembly wherein the drain
channel is oriented at a downward angle toward the rear, and thus
upon installation, toward the roof. The splice component 12 and the
cleat 10 may be attached via other methods known in the field, such
as for example, adhesive, rivet, screws and staples.
[0041] With additional reference to FIGS. 6 and 7, the cleat 10A is
adapted for a wall thickness of approximately 12 inches and
accordingly has a length between the front and rear faces of
approximately 12 inches. The cleat is formed from 20 gauge to 16
gauge galvanized material or 20 gauge to 16 gauge stainless steel
and is cut, drilled, stamped, shaped and/or bent to the
configurations illustrated in the drawings. The cleat 10A includes
a pair of 0.250 inch diameter holes 26 centered approximately 10
inches apart and 0.1875 inch slots 28 centered approximately 10
inches apart adjacent the back side 22. The holes 26 and slots 28
provide openings for fastening the cleat 10 to the blocking with
fasteners 16. This cleat is also available for masonry conditions
with the use of Tapcon.RTM. concrete fasteners or other
masonry/concrete fasteners (see FIG. 18).
[0042] The intermediate portion of the web is scored with a three
sided rectilinear U-shaped slot 21 so that a formed rectangular
appendage may be bent upwardly along the open end of the U-shaped
slot at an angle of approximately 15.degree. to form the spring
leaf 50. In this embodiment, the free distal end 52 of the leaf is
bent downwardly at an approximately 75.degree. angle and extends
approximately 0.375 inches. In preferred form, the leaf 50 is
centrally positioned relative to the opposite lateral edges of the
cleat. It should be appreciated that the angles and bends which
form the described front, side, back side and the respective
flanges are subsequently formed and configured. For the illustrated
cleat 10A, the face side 32 extends 5.22 inches (with ranges from
2.5 inches to 12 inches for some embodiments) from the vertex 30 of
the bend, and the rear side 22 extends downwardly approximately
2.54 inches (with ranges from 2.5 inches to 10 inches for some
embodiments) from the web at the rear.
[0043] Cleat 10B in FIGS. 8 and 9 is adapted for a wall thickness
of approximately 24 inches and also has a lateral dimension of
approximately 12 inches. For cleat 10B, two integral leafs 50 and
54 are formed in the web. Each leaf is centrally located between
the lateral edges. The leafs are substantially identical and each
extends approximately 5 inches in length at an angle of
approximately 15.degree. to the planar surface of the web 20.
[0044] Cleat 10C illustrated in FIGS. 10-12 is adapted for a wall
having a thickness of approximately 4 inches. In this embodiment,
the leaf 50 is significantly shorter in length and has an angle
relative to the plane of the web of approximately 20.degree.. In
this embodiment, no fasteners are required on the face side 32 of
cleat 10C. With reference to FIG. 12, the front face side includes
slots 33 for splice attachment through the use of a custom button
tool designed to hold the splice in place. The height of the front
face side in the vertical direction may vary from approximately 2.5
to 12 inches.
[0045] Nonlimiting representative dimensions for preferred
embodiments of cleats 10A, 10B and 10C, shown respectively in FIGS.
6-7, FIGS. 8-9, and FIGS. 10-12, are set forth in Table I below
(units in inches):
TABLE-US-00001 TABLE I DIMENSION CLEAT 10A CLEAT 10B CLEAT 10C
h.sub.1 5.835 5.835 3.835 h.sub.2 5.221 5.221 3.221 h.sub.3 3.256
3.256 2.256 h.sub.4 2.539 2.539 1.539 l.sub.1 12.375 24.375 4.375
l.sub.2 11.221 23.221 3.221 d.sub.1 5.000 5.000 1.664 d.sub.2 5.000
5.000 4.500 d.sub.3 5.000 5.000 -- d.sub.4 0.904 0.904 0.500
d.sub.5 5.625 5.625 2.188 d.sub.6 0.375 0.375 0.375 d.sub.7 --
13.091 -- d.sub.8 5.375 5.375 1.938 d.sub.9 5.376 5.376 5.000
d.sub.10 10.000 10.000 10.000
[0046] It will be appreciated that the aluminum joint splice or
diverter drain component 12 is initially nested over the galvanized
cleat 10 having the integral bias member in the form of leaf 50, as
best illustrated in FIG. 4. This cleat-splice unit comprising the
drain component and the cleat is then fastened as a single piece to
the top of the parapet wall P, as herein described. The coping cap
14 is then forced downwardly over the fastened cleat and drain
component so that the edge of the coping cap 14 is slightly off
center and an adjacent cap 14 may then be positioned oppositely in
edge-to-edge relationship, as shown in FIG. 3, or in a slightly
overlapping configuration (not depicted). The coping caps are
retained by the transverse hook 15 in cooperative engagement with
the cleat and drain component flanges, 34 and 68, without requiring
fasteners through the outer surfaces of the coping cap, thereby
enhancing the fluid sealing integrity of the installed coping
system. Each integral leaf, 50 and 54, functions as a spring to
bias the cap upwardly and maintain a tight hook/flange engagement,
and thus securedly attach the caps to the top of the wall.
Naturally, multiple cleats/diverter drain components are spaced
along the top of the wall and multiple coping caps are secured in
the aforementioned edge-to-edge relationship. The joint splice
components 12 and cleats 10 also eliminate the danger of fastening
in the front faces over the edge of the roof for the engagement of
coping.
[0047] FIG. 15 depicts a preferred embodiment of the coping system
100' installed on a parapet wall of standard blocking material.
Preferably the FACE dimension ranges in height from approximately 3
inches to approximately 12 inches, while the BACK dimension ranges
in height from approximately 3 inches to approximately 6 inches.
The FRONT face typically extends approximately 1-2 inches above the
upper surface of the blocking material. The leaf spring 50 extends
relative to the web 20 at an angle A, which ranges from
approximately 15.degree. to approximately 60.degree., and most
preferably is approximately 30.degree. prior to being compressed
toward the web 20 by the joint splice component 12. Notably, as
shown in FIG. 15, the disclosed embodiments may also employ a
support channel 70 for improving the strength and stability of the
system once installed and preventing downward sagging of any of the
web elements. As shown, the support channel 70 may comprise a
simple elongate C-channel member bent from metal, such as steel.
Embodiments of the C-channel may be rearwardly angled slightly
downward at an angle A.sub.c, ranging from approximately 89.degree.
to 80.degree., and most preferably 88.degree., relative to the
vertical. The slight downward angle accommodates the trajectory of
the joint splice 12 and upper surface of the coping cap 14. In
practice, the depicted support channels are installed on walls
having a relatively larger depth of preferably approximately 24
inches or greater to prevent or reduce sagging.
[0048] FIGS. 16A and 16B depict the cleat 10 and joint splice 12
attached prior to installation on a parapet wall. In practice, the
pre-attached unit 13 depicted in FIG. 16B is provided commercially,
and thereafter mounted over a membrane layer M on a parapet wall as
a single integral unit prior to attachment of adjacent coping caps
in a laterally offset position with the channel of the joint splice
positioned underneath the adjacent edges of the respective caps,
which may abut, overlap or define a small gap G of up to
approximately 0.25 inches (see FIG. 16C).
[0049] FIG. 17A depicts coping caps for use on inside and outside
wall corners (14a, 14b), while 17B depicts end coping caps (14c,
14d).
[0050] FIG. 18 depicts an alternate embodiment of the coping
assembly 100'' configured for attachment primarily to masonry
parapet walls W.sub.m. The key distinguishing features of the cleat
10'' for masonry are pop rivets 72 for aiding in pre-attaching the
splice member 12'', which is configured with complimentary slots in
the front panel. The coping cap 14 may be mounted over the
installed cleat-splice unit.
[0051] FIG. 19 depicts an embodiment of a cleat member 10''' with a
pair of spaced spring leafs (50A and 50B). Here, both the front
leaf 50A and rear leaf 50B extend rearwardly from the web at
approximately 30.degree., though the respective leafs may fall
within the aforementioned approximate range of
15.degree.-60.degree.. Also, of note in FIG. 19 are several
preferred dimensions for elements of the cleat member 10'''.
[0052] FIG. 20 depicts a cleat member with short front and rear
faces for use with shorter parapet walls, and includes
representative dimension measurements. Similarly, FIG. 21 depicts a
cleat member with longer front and rear faces for installation on a
taller parapet wall.
[0053] FIG. 22 shows another embodiment of the coping assembly for
use primarily with a deeper wall wherein a substantially flat upper
surface is preferred over a top surface that transitions downward
toward the roof structure, like the previously depicted
embodiments. In the FIG. 22 embodiment, the cleat member includes a
front spring leaf 50A and a rear spring leaf 50B. In contrast to
the embodiment of FIG. 19, the front spring leaf 50A extends
forward from the web at an acute angle, while the rear spring leaf
50B extends rearwardly in this embodiment. This particular dual
spring embodiment has been shown to be particularly useful on
curved or arched walls because the coping caps may be mounted
thereon by pushing straight downward into a mounted position
engaged with the front and rear flanges of the cleat, rather than
first engaging the front flange and rotating the cap rearward onto
the wall for engagement with the rear flange. FIG. 23 shows
preferred dimensions of the cleat member of the embodiment of the
coping assembly shown in FIG. 22. As with all of the embodiments
depicted and described herein, the particular dimensions noted are
preferred and non-limiting.
[0054] Additional embodiments of the coping assembly exist
featuring a cleat member that is not fastened to the front surface
of the parapet wall with a fastener, such as a screw, nail or
staple. This system is typically employed with walls having a
shorter height, of up to approximately 6 inches.
[0055] The disclosed coping assembly that includes the cleat-splice
unit with integral spring leaf provides a substantial advantage
over known coping systems. The disclosed assembly allows a two-step
installation, which dramatically simplifies installation while
improving safety. Some disclosed embodiments eliminate the
dangerous practice of an installer hanging over a parapet wall to
manually secure a coping cleat with a fastener in the front face.
The pre-attached cleat-splice units streamline the installation
process, by eliminating the need to split apart attached series of
splice members and identify the proper sized splice to attach to a
certain cleat.
[0056] While a preferred embodiment has been set forth for purposes
of illustration, the foregoing description should not be deemed a
limitation of the invention herein. Accordingly, various
modifications, adaptations and alternatives may occur to one
skilled in the art without departing from the spirit of the
invention and scope of the claimed coverage.
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