发明名称 |
ROOFING SHINGLES |
摘要 |
A roofing shingle (10) is formed from a square sheet metal blank. One corner (30) of the blank is provided with a pair of open ended, back to back U-shaped slots (38) transverse to a diagonal (26) passing through that corner (30). The two sides (12, 14) intersected by the slots are downwardly turned to form a small margin (12M, 14M), and the other two sides (16, 18) are upwardly turned to form a margin (16M, 18M) of similar width to the downwardly turned sides (12M, 14M). The corner is also downwardly folded above the slots (38) to form a margin (50M) of similar width to the other margins, and below the slots it is folded so as to be generally parallel to the central area (22) of the shingle. A shingle support (60) preferably of foamed sheet polystyrene is disposed on the under surface of the shingle.
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申请公布号 |
WO9514831(A1) |
申请公布日期 |
1995.06.01 |
申请号 |
WO1994US13468 |
申请日期 |
1994.11.21 |
申请人 |
ILNYCKYJ, PETER;BALLANTYNE, CHARLES, ALEXANDER |
发明人 |
ILNYCKYJ, PETER;BALLANTYNE, CHARLES, ALEXANDER |
分类号 |
E04D1/18;E04D1/28;(IPC1-7):E04D1/18;E04D1/34 |
主分类号 |
E04D1/18 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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