Roof fastener assembly including a dual plate stress reliever

Details Roof fastener assembly including a dual plate stress reliever Roof fastener assembly including a dual plate stress reliever

1989-08-18

1991-07-30

Murtagh, John E.

Buckles, buttons, clasps, etc.

Combined diverse multipart fasteners

Clasp

52410, 52547, 52548, 52748, F04D 514

Patent

active

050350285

ABSTRACT:
A device suitable for fastening a roofing membrane to a roofing surface comprises a pair of stress reliever plates, preferably coupled along one edge. Membrane engagement members, such as spikes, extend A device suitable for fastening a roofing membrane to a roofing surface comprises a pair of stress reliever plates, preferably coupled along one edge. Membrane engagement members, such as spikes, extend from the inner surface of one plate toward the other plate and are received in holes provided in the other plate. In the preferred embodiment, the two plates are coupled to one another by coupling or hinge systems, and a method for using the device is disclosed which comprises placing the fastener at the edge of the membrane material. Use of the dual plate stress reliever in combination with the membrane engaging the spikes provides a system with high resistance to lateral pullout and a system which is easy to install. Wrinkling of the membrane during fastener installation is also minimized.

REFERENCES:
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patent: 1941216 (1933-12-01), McKeown
patent: 2037163 (1936-04-01), Guy
patent: 2176156 (1939-10-01), Tamalunas
patent: 2724303 (1955-11-01), Holcomb
patent: 2828701 (1958-04-01), Freed
patent: 3646717 (1972-03-01), Parker
patent: 3729045 (1973-04-01), MacDonald
patent: 4193235 (1980-03-01), Cucchiara
patent: 4314433 (1982-02-01), Hulcombe
patent: 4630422 (1986-12-01), Beneze

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