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US4219981A Expired / Lapsed US ⏱️ 0.0 years remaining

Reinforcing struts for roofing tiles

Assignee: AHI Operations Ltd
•
Filing: 1978-09-11
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Granted: 1980-09-02
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Expires: 1998-09-11
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Abstract

Abstract A roof is provided with a plurality of reinforcing struts spanning tile battens. The reinforcing struts are of top hat cross-section and are provided with a stepped locating tab at one end to enable a sequence of struts to be laid in stepped formation to accurately locate side channels on stepped roofing tiles.

Inventors

  • 👤 James L. Stewart
  • 👤 Raymond G. Owers

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 11:27
CPC Classifications
E; E04; E04D; E04D3/00; E04D3/24; E04D3/30; E04D12/00; E04D3/36

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 84 words
A reinforcing strut for roofing tiles wherein the strut includes an elongate channel member of top-hat cross section having an upper face, two downwardly depending sides, and side flanges extending outwardly from said sides, and an upturned flange at one end of the upper face thereof, a locating tab on said flange substantially parallel to said upper face and extending away from said upper face thereof, the other end of the channel member being open to receive a tab of an adjacent reinforcing strut.
Claim 2
Dependent Claim 84 words
A reinforcing strut for roofing tiles wherein the strut includes an elongate channel member of top-hat cross section having an upper face, two downwardly depending sides, and side flanges extending outwardly from said sides, and an upturned flange at one end of the upper face thereof, a locating tab on said flange substantially parallel to said upper face and extending away from said upper face thereof, the other end of the channel member being open to receive a tab of an adjacent reinforcing strut.
Claim 3
Dependent Claim 250 words
A roof including: a plurality of spaced apart tile battens extending across the roof; a plurality of reinforcing struts connected to said tile battens; each reinforcing strut consisting of an elongate channel member of top-hat cross section having an upper face, two downwardly depending sides, and side flanges extending outwardly from said sides, and an upturned flange at one end of the upper face thereof, a locating tab on said flange substantially parallel to said upper face and extending away from said upper face thereof, the other end of the channel member being open to receive a tab of an adjacent reinforcing strut; the reinforcing struts being connected to said tile battens in stepped formation with each locating tab being connected to an upper surface of the tile batten, with adjacent reinforcing struts being positioned in line by inter-engagement of adjacent locating tabs and open ends; and a plurality of tiles each tile having stepped leading and trailing edges and recesses adjacent their side edges; said reinforcing struts being spaced apart to coincide with said recesses adjacent the side edges of said tiles; said tiles being attached to said roof and positioned with their side edges overlapping and supported by said struts coinciding with said recesses; the trailing edge of each tile resting on a tile batten and covering the locating tabs of said struts, and the leading edge of each tile extending over the open ends of said struts and covering the trailing edge of the next adjacent tile.
Claim 4
Dependent Claim 250 words
A roof including: a plurality of spaced apart tile battens extending across the roof; a plurality of reinforcing struts connected to said tile battens; each reinforcing strut consisting of an elongate channel member of top-hat cross section having an upper face, two downwardly depending sides, and side flanges extending outwardly from said sides, and an upturned flange at one end of the upper face thereof, a locating tab on said flange substantially parallel to said upper face and extending away from said upper face thereof, the other end of the channel member being open to receive a tab of an adjacent reinforcing strut; the reinforcing struts being connected to said tile battens in stepped formation with each locating tab being connected to an upper surface of the tile batten, with adjacent reinforcing struts being positioned in line by inter-engagement of adjacent locating tabs and open ends; and a plurality of tiles each tile having stepped leading and trailing edges and recesses adjacent their side edges; said reinforcing struts being spaced apart to coincide with said recesses adjacent the side edges of said tiles; said tiles being attached to said roof and positioned with their side edges overlapping and supported by said struts coinciding with said recesses; the trailing edge of each tile resting on a tile batten and covering the locating tabs of said struts, and the leading edge of each tile extending over the open ends of said struts and covering the trailing edge of the next adjacent tile.

References Cited (Backward Citations)

CA746203A Cited
DE151738C Cited
US1076065A Cited
GB348155A Cited
US2520499A Cited
US3339333A Cited
US3373534A Cited
US3380214A Cited
US3629988A Cited
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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1983-09-02 1984-03-03 1984-09-02 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1987-09-02 1988-03-03 1988-09-02 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1991-09-02 1992-03-03 1992-09-02 $7700.00 Window Closed / Lapsed

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