Static structures (e.g. – buildings) – Disparate sheet lamina between exposed surfaces of wall,... – Tie crossing dividing lamina
Patent
1989-07-25
1991-01-29
Murtagh, John E.
Static structures (e.g., buildings)
Disparate sheet lamina between exposed surfaces of wall,...
Tie crossing dividing lamina
52747, E04D 514
Patent
active
049877143
ABSTRACT:
A method of installing a roofing fastener including a screw and a stress plate into a multilayered roofing structure involves bonding the outer surface of the screw to the inner surface of the plate. Such a bond may be formed by spin welding as the screw is installed in the roofing structure. The fastener is thereby installed and bonded in the same operation. A fastener assembly useful in the foregoing method includes a screw and plate having welding surfaces made of a thermoplastic resin.
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