Lubricated roofing membrane fastener
First Claim
1. A fastener for holding a roofing membrane to a roof without puncturing the roofing membrane comprising:
- an anchoring disc, said disc including a central hollow inverted, frusto-conical button;
1 Assignment
0 Petitions
Accused Products
Abstract
A three-piece fastener for securing a flexible roofing membrane to a roof without penetrating the membrane. The fastener includes an anchoring disc having a centrally located, upwardly-directed projection or button in the central portion thereof which preferably has a hollow inverted frusto-conical shape. The disc is screwed or nailed to a roof surface, and the roofing membrane laid over the disc. Thereafter, an externally threaded, tined retainer cap of resilient material, which forms a second element of the fastener, is snapped over the button with the membrane located therebetween. An internally threaded cover screws onto the tined retainer, preventing the retainer from popping off the button. The tined cap is lubricated with a permanent non-evaporating lubricant, such as silicon grease, to facilitate its use without damaging the membrane.
39 Citations
16 Claims
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1. A fastener for holding a roofing membrane to a roof without puncturing the roofing membrane comprising:
an anchoring disc, said disc including a central hollow inverted, frusto-conical button; - View Dependent Claims (3, 6, 7, 8, 9, 11, 12, 13, 14, 15, 16)
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2. an externally threaded tined retainer cap adapted to snap onto said button of said anchor with said membrane held between said retainer and said button to clamp said membrane to said button;
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a permanent lubricant applied to the internal surface of said tined retainer cap which does not evaporate under atmospheric conditions; and an internally threaded cover adapted to screw onto said externally threaded retainer cap to hold said tined retainer cap and button engaged with said membrane gripped therebetween. - View Dependent Claims (4, 5)
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10. The method of fastening a roofing membrane to a roof surface without puncturing the roofing membrane comprising:
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fastening an anchoring disc to said surface, said anchoring disc including a central hollow inverted, frusto-conical button; positioning said membrane over said anchoring disc; lubricating the internal surface of an externally threaded tined retainer cap with a lubricant which remains effective for an extended period of time under atmospheric conditions; clamping said membrane to said anchoring disc by forcing said lubricated retainer cap over said button with said membrane between said button and said retainer cap; holding said retainer cap engaged with said membrane by screwing an internally threaded cover over said tined retainer.
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Specification