发明名称 |
Roofing system, method and holddown apparatus |
摘要 |
A holddown to be used in conjunction with a headed fastener, a roofing system and a method utilizing the same. The holddown comprises a disc-shaped spring and a body encasing the spring. The fastener is interpositionable within a hole in the body of the holddown and displacement of the fastener applies a compressive force to the holddown. The spring is deformable from an unbiased position to a biased postion by the compressive force. The body is deformable from an unconstrained shape to a constrained shape by the deformation of the spring. The holddown is usable in conjunction with both the fastener and pliant filler to affix roofing material in a watertight relationship to a roof structure and to maintain the same in position against the forces applied by the wind.
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申请公布号 |
US4686808(A) |
申请公布日期 |
1987.08.18 |
申请号 |
US19830475159 |
申请日期 |
1983.03.14 |
申请人 |
GRAY, JOHN D.;TRIPLETT, CHARLES S. |
发明人 |
TRIPLETT, CAROL J. |
分类号 |
E04D5/14;(IPC1-7):E04B5/00 |
主分类号 |
E04D5/14 |
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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