CA1121964A - Plastic moulding - Google Patents
Plastic mouldingInfo
- Publication number
- CA1121964A CA1121964A CA000353631A CA353631A CA1121964A CA 1121964 A CA1121964 A CA 1121964A CA 000353631 A CA000353631 A CA 000353631A CA 353631 A CA353631 A CA 353631A CA 1121964 A CA1121964 A CA 1121964A
- Authority
- CA
- Canada
- Prior art keywords
- body section
- tongue
- corrugated
- section
- moulding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000010137 moulding (plastic) Methods 0.000 title 1
- 230000000149 penetrating effect Effects 0.000 claims abstract description 3
- 238000000465 moulding Methods 0.000 abstract description 47
- 239000011152 fibreglass Substances 0.000 abstract description 17
- 241000218645 Cedrus Species 0.000 description 12
- 238000010276 construction Methods 0.000 description 5
- 238000012856 packing Methods 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 239000002023 wood Substances 0.000 description 3
- 238000001746 injection moulding Methods 0.000 description 2
- 229920000114 Corrugated plastic Polymers 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D3/00—Roof covering by making use of flat or curved slabs or stiff sheets
- E04D3/36—Connecting; Fastening
- E04D3/3607—Connecting; Fastening the fastening means comprising spacer means adapted to the shape of the profiled roof covering
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
This invention is directed to a sheet moulding and in particular a moulding that is used to assist in fastening corrugated fibreglass sheeting to supporting objects. The invention is a pre-fabricated section suitable for use in supporting corrugated sheeting comprising a hollow, open-bottom, elongated, body section, the body section having a corrugated top wall and two generally planar side walls; one or more nail receiving openings penetrating the interior of the corrugated top wall; a tongue located at and projecting from one end of the body section, the tongue having at least one pin projecting vertically from the surface of the tongue that corresponds with the corrugated surface of the body section; and at least one opening in the corrugated surface corresponding in size and respective location with the pin located on the tongue at the opposite end, located at the end of the body section opposite the tongue.
This invention is directed to a sheet moulding and in particular a moulding that is used to assist in fastening corrugated fibreglass sheeting to supporting objects. The invention is a pre-fabricated section suitable for use in supporting corrugated sheeting comprising a hollow, open-bottom, elongated, body section, the body section having a corrugated top wall and two generally planar side walls; one or more nail receiving openings penetrating the interior of the corrugated top wall; a tongue located at and projecting from one end of the body section, the tongue having at least one pin projecting vertically from the surface of the tongue that corresponds with the corrugated surface of the body section; and at least one opening in the corrugated surface corresponding in size and respective location with the pin located on the tongue at the opposite end, located at the end of the body section opposite the tongue.
Description
~1~19~.~
FIELD OF THE INVENTION
This invention is directed to a sheet moulding and in particular a moulding t~at is used to assist in fastening corrugated fibreglass shee-ting to supporting objects.
BACKGROUND OF T~E INVENTION
Corrugated fibreglass sheeting is widely used in the construction business in forming roofs, fences, patio enclosures and the like. The corrugated design gives the sheets strength. However, there has been a continuing and largely unsatisfactorily solved problem in fastening the corrugated sheeting to supporting objects sush as joists, trusses, posts and the like.
The conventional, and only partially satisfactory method, of fastening corrugated plastic sheeting to its support object is to use cedar or other suitable wood strip moulding, one longitudinal surface of the moulding being corrugated to conform with the corrugations of the plastic sheeting. The corrugated surface of the cedar strip underlies and coincides with the corrugated sheeting, the sheeting then being secured to the support object by driving nails with rubber ~ashers under the heads, through the sheeting, through the underlying cedar strip moulding and into the support object.
Since the cedar is under storage for a length of time it dries out and becomes very brittle. It is then prone to splitting when the large diameter nails are driven through the moulding and the fibreglass.
Once the nails are driven through the fibreglass and the 19i~
moulding, and the moulding splits, there is no way to replace the split moulding except by removing the overlying fibreglass sheet. Further, the fibreglass sheet is usually ruined when the securing nails are pulled out. As a consequence, any split moulding is not manually replaced.
This construction system, however, presents a number of problems. Drilling holes in the moulding to accomodate the nails and reduce splitting may be done but this is expensive. The cedar moulding also shrinks and warps with time. Furthermore, cedar strip moulding is not consistent in size. The dimensions of the corrugations in the moulding are customarily cut with planing knives which become dull with use. When the planar knives get dull they must be sharpened. Sharp-ening the knives necessarily alters their dimensions and hence the dimensions of the corrugations cut in the moulding. Inconsistent corrugation dimensions do not provide a good, uniform and load-bearing fit with the fibreglass sheeting corrugations which, because moulds are used, tend to be relatively uniform. The non-consistent dimensions or the corrugations in the moulding, can be out of size by as little as one-half one thousandth of an inch, and yet this slight dis-crepancy can provide serious construction problems because, over the length of a normal roof or fence, the corrugations in the moulding become increasingly out of step with the corrugations of the sheeting. Thus, in an effort to achieve good fits, many pieces of moulding, ~hich normally come in eight foot lengths, must be
FIELD OF THE INVENTION
This invention is directed to a sheet moulding and in particular a moulding t~at is used to assist in fastening corrugated fibreglass shee-ting to supporting objects.
BACKGROUND OF T~E INVENTION
Corrugated fibreglass sheeting is widely used in the construction business in forming roofs, fences, patio enclosures and the like. The corrugated design gives the sheets strength. However, there has been a continuing and largely unsatisfactorily solved problem in fastening the corrugated sheeting to supporting objects sush as joists, trusses, posts and the like.
The conventional, and only partially satisfactory method, of fastening corrugated plastic sheeting to its support object is to use cedar or other suitable wood strip moulding, one longitudinal surface of the moulding being corrugated to conform with the corrugations of the plastic sheeting. The corrugated surface of the cedar strip underlies and coincides with the corrugated sheeting, the sheeting then being secured to the support object by driving nails with rubber ~ashers under the heads, through the sheeting, through the underlying cedar strip moulding and into the support object.
Since the cedar is under storage for a length of time it dries out and becomes very brittle. It is then prone to splitting when the large diameter nails are driven through the moulding and the fibreglass.
Once the nails are driven through the fibreglass and the 19i~
moulding, and the moulding splits, there is no way to replace the split moulding except by removing the overlying fibreglass sheet. Further, the fibreglass sheet is usually ruined when the securing nails are pulled out. As a consequence, any split moulding is not manually replaced.
This construction system, however, presents a number of problems. Drilling holes in the moulding to accomodate the nails and reduce splitting may be done but this is expensive. The cedar moulding also shrinks and warps with time. Furthermore, cedar strip moulding is not consistent in size. The dimensions of the corrugations in the moulding are customarily cut with planing knives which become dull with use. When the planar knives get dull they must be sharpened. Sharp-ening the knives necessarily alters their dimensions and hence the dimensions of the corrugations cut in the moulding. Inconsistent corrugation dimensions do not provide a good, uniform and load-bearing fit with the fibreglass sheeting corrugations which, because moulds are used, tend to be relatively uniform. The non-consistent dimensions or the corrugations in the moulding, can be out of size by as little as one-half one thousandth of an inch, and yet this slight dis-crepancy can provide serious construction problems because, over the length of a normal roof or fence, the corrugations in the moulding become increasingly out of step with the corrugations of the sheeting. Thus, in an effort to achieve good fits, many pieces of moulding, ~hich normally come in eight foot lengths, must be
2 --9~4 discarded. Only those pieces of moulding which have con~orming dimensions can be used. Discarding certain moulding sections, and selecting others, is wasteful, expensive and is time conswning for the men constructing and fitting the wall or fence.
A further problem with cedar moulding is that the ends are often split, broken off, or generally unsuitable for use, thereby contributing to rejection rates. Moreover, the ends of cedar moulding are customarily cut at random and the ends of adjoining moulding pieces must be manually matched at the job site, which is time consuming. Sawing the ends of cedar noulding to square them, as is done in the trade, also presents a problem because the cut made by the saw has a certain width and thus two pieces with sawn ends may fit too closely together such that the distance between the peaks of the adjacent corrugations does not match corresponding distances between the peaks of other corrugations.
Finally, with cedar corrugated moulding, the wood hollowed out to make the corrugations is usually discarded as sawdust, which is wasteful. This is an increasingly serious problem as wood becomes scarce and increases in price over the years.
SUMMARY OF THE INVENTION
I have inv~nted a specific construction of corrugated reinforcing moulding strip that is not subject to the problems and shortcomings described above. The strip is formed from a suitable plastic 3C material by injection moulding. 'Fhe strips are ~lZ:~9~
relatively short in length, are hollowed out to reduce plastic content, and thus cost, have corrugations that are dimensionally accurate within small tolerances, can be hooked together in series to make up long lengths of moulding, and have holes formed in the moulding to receive the securing nails, and thereby minimizes splitting.
The moulding sections are normally formed in 13 in. lengths ~two abutting sections measure 26 ins., which is the customary width of fibreglass sheeting) and have a pair of pin projections formed in one end and matching pin receiving holes in the opposite end. Thus a number of sections can be connected end to end in series by fitting the pin projections at the end of one section into the holes at the end o thP adjoining section. The pins and corresponding holes are dimensioned to fit together tightly enough that a number of sections can be linked together to form eight or ten foot strips which are light and can be carried in bundles by a workman up onto the roof of a building, or to wherever the construction site is located.
Notwithstanding the snug fit between pins and holes, the sections can still be readily disconnected by h~nd.
~ t least two holes for accomodating the moulding securing nails are formed in each moulded section. Splitting of the moulding is therefore virtually eliminated. Furthermore, the pre-moulded sections do not shrink or warp with time and when connected together in series provide a long, dimensionally stable moulding that snugly fits with the 9~i4 corrugation in a corrugated fibreglass sheet. ~le moulding securing nail receiving holes are formed in the sections at a location off-set from the bottom point of the valley of the corrugations. This facilitates hammering the securing nails, which are of small diameter, through the moulding into the underlying support, for example, a joist. If the holes were located at the bottom point of the valley, there would be substantial danger that the hammer would strike the moulding on each side of the valley before the nails were driven completely into place thereby damaging the moulding. Having the nails off-set substantially Ieduces this danger.
Once the moulding has been secured in place on the support structure, the overlying fibreglass sheeting is put in place and fastened to the moulding and the support structure by driving relatively large diameter fibreglass sheet securing nails at periodic crests of corrugations in the fibreglass sheeting.
The pre-moulded sections have the additional advantage that they can be packed tightly together by nesting the sections with one another for crating in boxes of about two feet in length. With cedar strips, boxes and crates of about eight feet in length are necessary. On an equivalent basis, the sections, and a strip constructed of a linked series of sections of the invention are lighter in weight than the wooden counterparts and may b~ shipped more economically.
Finally, the pre-moulded sections can be manufactured in various colours so that they can be 11~Z19~4 colour matched with the colour of the fibreglass sheeting. Cedar moulding must be painted in order to colour match with the colour of the fibreglass sheeting.
The invention consists of a pre-fabricated section suitable for use in supporting corrugated sheeting comprising:
(a) a hollow, open-bottom, elongated body section; the body section having a corrugated top wall and two generally planar side walls;
(b) one or more nail receiving openings penetrating the interior of the corrugatd top wall;
(c) a tongue located at and projecting from one end of the body section, the tongue having at least one pin projecting from the surface of the tongue that corresponds with the corrugated surface of the body section; and (d) at least one opening in the corrugated surface corresponding in size and respective location with the pin located on the tongue at the opposite end, located at the end of the body section opposite the tongue.
The section of the invention wherein the end o~ the body section having at least one opening for the pin is open to receive within the body section, in end to end relation the tongue of a body section constructed similar to that claimed in the invention.
The section of the invention wherein at least two pins are located on the tongue at one end of the body section and a corresponding number of pin receiving holes are located in the corrugated surface at the end of the body section opposite the two pinsO
The section of the invention wherein the nail receiving openings are located in one or more of the sloping surfaces of the corrugated top wall between the apex and valley of the corrugations.
_RAWI~GS
In the drawings:
FIGURE 1 illustrates a perspective view of a moulding section, FIGURE 2 illustrates a side elevation view of two moulding sections linked together;
FIGURE ~a illustrates a top elevation view of two moulding sections linked together;
FIGU Æ ~b illustrates a bottom elevation view of two moulded sections linked together FIGURE 3 illustrates a perspective view of the underside o~ a moulding section;
~IGURE 4, which is found on the first page of the drawings, illustrates a side elevation view of a portion of a moulding section, an underlying support object and an overlying sheet secured to the support object by nails and rubber washers; and FIGURE 5, which is ~ound on the first page of
A further problem with cedar moulding is that the ends are often split, broken off, or generally unsuitable for use, thereby contributing to rejection rates. Moreover, the ends of cedar moulding are customarily cut at random and the ends of adjoining moulding pieces must be manually matched at the job site, which is time consuming. Sawing the ends of cedar noulding to square them, as is done in the trade, also presents a problem because the cut made by the saw has a certain width and thus two pieces with sawn ends may fit too closely together such that the distance between the peaks of the adjacent corrugations does not match corresponding distances between the peaks of other corrugations.
Finally, with cedar corrugated moulding, the wood hollowed out to make the corrugations is usually discarded as sawdust, which is wasteful. This is an increasingly serious problem as wood becomes scarce and increases in price over the years.
SUMMARY OF THE INVENTION
I have inv~nted a specific construction of corrugated reinforcing moulding strip that is not subject to the problems and shortcomings described above. The strip is formed from a suitable plastic 3C material by injection moulding. 'Fhe strips are ~lZ:~9~
relatively short in length, are hollowed out to reduce plastic content, and thus cost, have corrugations that are dimensionally accurate within small tolerances, can be hooked together in series to make up long lengths of moulding, and have holes formed in the moulding to receive the securing nails, and thereby minimizes splitting.
The moulding sections are normally formed in 13 in. lengths ~two abutting sections measure 26 ins., which is the customary width of fibreglass sheeting) and have a pair of pin projections formed in one end and matching pin receiving holes in the opposite end. Thus a number of sections can be connected end to end in series by fitting the pin projections at the end of one section into the holes at the end o thP adjoining section. The pins and corresponding holes are dimensioned to fit together tightly enough that a number of sections can be linked together to form eight or ten foot strips which are light and can be carried in bundles by a workman up onto the roof of a building, or to wherever the construction site is located.
Notwithstanding the snug fit between pins and holes, the sections can still be readily disconnected by h~nd.
~ t least two holes for accomodating the moulding securing nails are formed in each moulded section. Splitting of the moulding is therefore virtually eliminated. Furthermore, the pre-moulded sections do not shrink or warp with time and when connected together in series provide a long, dimensionally stable moulding that snugly fits with the 9~i4 corrugation in a corrugated fibreglass sheet. ~le moulding securing nail receiving holes are formed in the sections at a location off-set from the bottom point of the valley of the corrugations. This facilitates hammering the securing nails, which are of small diameter, through the moulding into the underlying support, for example, a joist. If the holes were located at the bottom point of the valley, there would be substantial danger that the hammer would strike the moulding on each side of the valley before the nails were driven completely into place thereby damaging the moulding. Having the nails off-set substantially Ieduces this danger.
Once the moulding has been secured in place on the support structure, the overlying fibreglass sheeting is put in place and fastened to the moulding and the support structure by driving relatively large diameter fibreglass sheet securing nails at periodic crests of corrugations in the fibreglass sheeting.
The pre-moulded sections have the additional advantage that they can be packed tightly together by nesting the sections with one another for crating in boxes of about two feet in length. With cedar strips, boxes and crates of about eight feet in length are necessary. On an equivalent basis, the sections, and a strip constructed of a linked series of sections of the invention are lighter in weight than the wooden counterparts and may b~ shipped more economically.
Finally, the pre-moulded sections can be manufactured in various colours so that they can be 11~Z19~4 colour matched with the colour of the fibreglass sheeting. Cedar moulding must be painted in order to colour match with the colour of the fibreglass sheeting.
The invention consists of a pre-fabricated section suitable for use in supporting corrugated sheeting comprising:
(a) a hollow, open-bottom, elongated body section; the body section having a corrugated top wall and two generally planar side walls;
(b) one or more nail receiving openings penetrating the interior of the corrugatd top wall;
(c) a tongue located at and projecting from one end of the body section, the tongue having at least one pin projecting from the surface of the tongue that corresponds with the corrugated surface of the body section; and (d) at least one opening in the corrugated surface corresponding in size and respective location with the pin located on the tongue at the opposite end, located at the end of the body section opposite the tongue.
The section of the invention wherein the end o~ the body section having at least one opening for the pin is open to receive within the body section, in end to end relation the tongue of a body section constructed similar to that claimed in the invention.
The section of the invention wherein at least two pins are located on the tongue at one end of the body section and a corresponding number of pin receiving holes are located in the corrugated surface at the end of the body section opposite the two pinsO
The section of the invention wherein the nail receiving openings are located in one or more of the sloping surfaces of the corrugated top wall between the apex and valley of the corrugations.
_RAWI~GS
In the drawings:
FIGURE 1 illustrates a perspective view of a moulding section, FIGURE 2 illustrates a side elevation view of two moulding sections linked together;
FIGURE ~a illustrates a top elevation view of two moulding sections linked together;
FIGU Æ ~b illustrates a bottom elevation view of two moulded sections linked together FIGURE 3 illustrates a perspective view of the underside o~ a moulding section;
~IGURE 4, which is found on the first page of the drawings, illustrates a side elevation view of a portion of a moulding section, an underlying support object and an overlying sheet secured to the support object by nails and rubber washers; and FIGURE 5, which is ~ound on the first page of
3~ the drawings, illustrates a side elevation view of two moulding sections fitted together for packing and shipping.
~19~
DETAILED DESCRIPTION OF ONE EMBODIMENT OF THE INVENTION
With reference to FIGURE 1, which illustrates a perspective view of an elongated moulding section 1, the section 1 is formed by injection moulding with a corrugated top surface 2, dimensioned to fit closely with the corrugation dimensions of commercial corrugated fibreglass sheet, generally planar sides 3, pre-formed nail holes 4, a tongue 5 protruding from one end of the section with a pair of laterally aligned upwardly projecting pins G located on the top surface of the tongue 5, and a corresponding pair of pin receiving holes / located at the opposite end.
FIG~RES 2, 2a and 2b illustrate how two sections 1 can be snugly and securely linked together in end to end relation by means of pins 6 of one section and pin receiving holes 7 of the next section. The end of section 1 having the holes 7 is open so that it can receive internally tongue 5 and pin pairs 6, pin pairs 6 fitting into the corresponding pair of holes 7 on the end of adjoining section 1.
FIGURE 3 illustrates in bottom perspective view the underside of section 1. The underside is hollowed out to leave two relatively thin walls 3. The end of the section 1 with the pair of pin recPiving holes 7 is open while the tonguP 5 at the opposite end is filled to support thP pair of pins 6.
FIGURE 4 illustrates in side elevation view the manner in which a section 1 is used to support corrugated sheet 8, in combination with support object 9. Section 1 is first secured to the underlying 19~4 load bearing support object 9 by means of securing nails 10 at two locations determined by nail holes 4.
Sheet 8 is then fastened over the section 1 by fibre-glass securing nail 11 which has a head underlying sealing washer 12. Washer 12 provides a seal to prevent water seeping between hole 4 and nail 11.
FIGURE 5 illustrates how two, or more, sections 1 can be fitted snugly together for packing into crates for shipping purposes. One section 1 is inverted so that its corrugated surface fits against the corresponding ~orrugated surface of another section 1.
Similar inverted pairs can be stacked up on top of one another, and adjacent one another, for packing into shipping cartons.
The foregoing is a description of only one embodiment of this invention and it is understood that the scope of the invention is not to be limited thereto but is to be evaluated according to the substance and spirit of the invention and the claims which follow this di~clos~re.
_ g _
~19~
DETAILED DESCRIPTION OF ONE EMBODIMENT OF THE INVENTION
With reference to FIGURE 1, which illustrates a perspective view of an elongated moulding section 1, the section 1 is formed by injection moulding with a corrugated top surface 2, dimensioned to fit closely with the corrugation dimensions of commercial corrugated fibreglass sheet, generally planar sides 3, pre-formed nail holes 4, a tongue 5 protruding from one end of the section with a pair of laterally aligned upwardly projecting pins G located on the top surface of the tongue 5, and a corresponding pair of pin receiving holes / located at the opposite end.
FIG~RES 2, 2a and 2b illustrate how two sections 1 can be snugly and securely linked together in end to end relation by means of pins 6 of one section and pin receiving holes 7 of the next section. The end of section 1 having the holes 7 is open so that it can receive internally tongue 5 and pin pairs 6, pin pairs 6 fitting into the corresponding pair of holes 7 on the end of adjoining section 1.
FIGURE 3 illustrates in bottom perspective view the underside of section 1. The underside is hollowed out to leave two relatively thin walls 3. The end of the section 1 with the pair of pin recPiving holes 7 is open while the tonguP 5 at the opposite end is filled to support thP pair of pins 6.
FIGURE 4 illustrates in side elevation view the manner in which a section 1 is used to support corrugated sheet 8, in combination with support object 9. Section 1 is first secured to the underlying 19~4 load bearing support object 9 by means of securing nails 10 at two locations determined by nail holes 4.
Sheet 8 is then fastened over the section 1 by fibre-glass securing nail 11 which has a head underlying sealing washer 12. Washer 12 provides a seal to prevent water seeping between hole 4 and nail 11.
FIGURE 5 illustrates how two, or more, sections 1 can be fitted snugly together for packing into crates for shipping purposes. One section 1 is inverted so that its corrugated surface fits against the corresponding ~orrugated surface of another section 1.
Similar inverted pairs can be stacked up on top of one another, and adjacent one another, for packing into shipping cartons.
The foregoing is a description of only one embodiment of this invention and it is understood that the scope of the invention is not to be limited thereto but is to be evaluated according to the substance and spirit of the invention and the claims which follow this di~clos~re.
_ g _
Claims (6)
1. A pre-fabricated section suitable for use in supporting corrugated sheeting comprising.
(a) a hollow, open-bottom, elongated body section; the body section having a corrugated top wall and two generally planar side walls;
(b) one or more nail receiving openings penetrating the interior of the corrugatd top wall;
(c) a tongue located at and projecting from one end of the body section, the tongue having at least one pin projecting from the surface of the tongue that corresponds with the corrugated surface of the body section; and (d) at least one opening in the corrugated surface corresponding in size and respective location with the pin located on the tongue at the opposite end, located at the end of the body section opposite the tongue.
(a) a hollow, open-bottom, elongated body section; the body section having a corrugated top wall and two generally planar side walls;
(b) one or more nail receiving openings penetrating the interior of the corrugatd top wall;
(c) a tongue located at and projecting from one end of the body section, the tongue having at least one pin projecting from the surface of the tongue that corresponds with the corrugated surface of the body section; and (d) at least one opening in the corrugated surface corresponding in size and respective location with the pin located on the tongue at the opposite end, located at the end of the body section opposite the tongue.
2. The section of Claim 1 wherein the end of the body section having at least one opening for the pin is open to receive within the body section, in end to end relation the tongue of a body section constructed similar to that claimed in Claim 1.
3. The section of Claim 1 wherein at least two - Page 1 of Claims -pins are located on the tongue at one end of the body section and a corresponding number of pin receiving holes are located in the corrugated surface at the end of the body section opposite the two pins.
4. The section of Claim 1, 2 or 3, wherein the nail receiving openings are located in one or more of the sloping surfaces of the corrugated top wall between the apex and valley of the corrugations.
5. The section of Claim 2 wherein at least two pins are located on the tongue at one end of the body section and a corresponding number of pin receiving holes are located in the corrugated surface at the end of the body section opposite the two pins.
6. The section of Claim 5, wherein the nail receiving openings are located in one or more of the sloping surfaces of the corrugated top wall between the apex and valley of the corrugations.
- Page 2 of Claims -
- Page 2 of Claims -
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000353631A CA1121964A (en) | 1980-06-06 | 1980-06-06 | Plastic moulding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000353631A CA1121964A (en) | 1980-06-06 | 1980-06-06 | Plastic moulding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1121964A true CA1121964A (en) | 1982-04-20 |
Family
ID=4117144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000353631A Expired CA1121964A (en) | 1980-06-06 | 1980-06-06 | Plastic moulding |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1121964A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007057870A1 (en) * | 2005-11-15 | 2007-05-24 | Kingspan Research And Developments Limited | A panel assembly |
-
1980
- 1980-06-06 CA CA000353631A patent/CA1121964A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007057870A1 (en) * | 2005-11-15 | 2007-05-24 | Kingspan Research And Developments Limited | A panel assembly |
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