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US4575981A Expired / Lapsed US ⏱️ 0.0 years remaining

Roof panel construction

Assignee: Individual
•
Filing: 1984-02-13
•
Granted: 1986-03-18
•
Expires: 2004-02-13
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Abstract

Abstract A roof panel includes opposing edges having complementary tongue-in-groove configurations to provide a modified ship-lap joint with an overlapping face between adjacent, abutting roof panels. The panels are used on pitched roofs with the inter-panel joint normally running horizontally. The lower edge of a first panel positioned higher on the roof is provided with a rabbet and an extended portion running the length of the panel. The rabbet includes a groove extending the length thereof and into which a sealant rod or a caulk strip may be inserted. The abutting edge of a second, immediately adjacent lower panel is similarly provided with a complementary rabbet and extended portion for insertion in the first panel's rabbet. Self-tapping screws positioned along the length of the joint are inserted from beneath through the second panel's lower, thin edge, the first panel's extended portion, and then through the second panel's extended portion. Tightening of the screws draws the second panel's extended portion into tight-fitting engagement with the compressive sealant material and allows for the expansion and contraction of the inner and outer faces of the panels and provides a water-tight mechanical seal of increased strength and reduces the possibility of joint opening due to excessive heat or fire in providing improved fire containment.

Inventors

  • 👤 William H. Porter

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-07 10:26
CPC Classifications
E; E04; E04D; E04D3/00; E04D3/35; E04D3/351; E04D3/352; E04D3/355

Claims Analysis

Total Claims: 10
Claim 1
Independent Claim 219 words
A shiplapped joint between first and second edge-abutting panels each having upper and lower faces and a core material therebetween for use in a pitched roof including said first and second panels, wherein said first panel is positioned higher on the pitched roof than the second panel, said joint comprising: an extended edge portion of the upper face of said first panel and an extended edge portion of the lower face of said second panel wherein said respective edge portions of each of said first and second panels are mutually complementary in configuration and each overlaps the immediately adjacent, abutting portion of the other panel; a recessed portion located on an inner edge portion of the upper face of said first panel and extending the length thereof, said recessed portion adapted to receive a sealant positioned therein; and coupling means inserted through the extended edge portion of the lower face of said second panel for engaging an overlapping edge portion of said first panel in abutting contact with a corresponding overlapping edge portion of said second panel and for displacing said second panel upward whereby said sealant is compressed in tight fitting relation between the extended edge portion of the upper face of said first panel and said overlapping edge portion of said second panel and seals said joint.
Claim 2
Dependent Claim 219 words
A shiplapped joint between first and second edge-abutting panels each having upper and lower faces and a core material therebetween for use in a pitched roof including said first and second panels, wherein said first panel is positioned higher on the pitched roof than the second panel, said joint comprising: an extended edge portion of the upper face of said first panel and an extended edge portion of the lower face of said second panel wherein said respective edge portions of each of said first and second panels are mutually complementary in configuration and each overlaps the immediately adjacent, abutting portion of the other panel; a recessed portion located on an inner edge portion of the upper face of said first panel and extending the length thereof, said recessed portion adapted to receive a sealant positioned therein; and coupling means inserted through the extended edge portion of the lower face of said second panel for engaging an overlapping edge portion of said first panel in abutting contact with a corresponding overlapping edge portion of said second panel and for displacing said second panel upward whereby said sealant is compressed in tight fitting relation between the extended edge portion of the upper face of said first panel and said overlapping edge portion of said second panel and seals said joint.
Claim 3
Dependent Claim 25 words
An inter-panel joint in accordance with claim 1 wherein the upper and lower faces of said first and second panels are comprised of sheet metal.
Claim 4
Dependent Claim 17 words
An inter-panel joint in accordance with claim 1 wherein said core material is comprised of an insulator.
Claim 5
Dependent Claim 17 words
An inter-panel joint in accordance with claim 1 wherein said insulator is comprised of rigid plastic foam.
Claim 6
Dependent Claim 33 words
An inter-panel joint in accordance with claim 1 wherein said coupling means includes a metal screw for threadably engaging an overlapping edge portion of said first panel and displacing said second panel upward.
Claim 7
Dependent Claim 17 words
An inter-panel joint in accordance with claim 5 wherein said metal screw is of the self-tapping type.
Claim 8
Dependent Claim 16 words
An inter-panel joint in accordance with claim 1 wherein said sealant includes a compressible sealant rod.
Claim 9
Dependent Claim 15 words
An inter-panel joint in accordance with claim 1 wherein said sealant includes a caulk strip.
Claim 10
Dependent Claim 34 words
An inter-panel joint in accordance with claim 1 wherein said sealant is compressed between the inner edge portion of the upper face of said first panel and the upper face of said second panel.

References Cited (Backward Citations)

US2962323A Cited
US3313073A Cited
US4037377A Cited
US3667180A Cited
US3789556A Cited
US4100710A Cited
US4104840A Cited
US4435934A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1989-03-17 1989-09-16 1990-03-18 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1993-03-17 1993-09-16 1994-03-18 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1997-03-17 1997-09-16 1998-03-18 $7700.00 Window Closed / Lapsed

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