Screw fastener assembly, method of providing same, and fastener

Details Screw fastener assembly, method of providing same, and fastener Screw fastener assembly, method of providing same, and fastener

1982-04-19

1984-06-12

Perham, Alfred C.

Static structures (e.g., buildings)

Disparate sheet lamina between exposed surfaces of wall,...

Tie crossing dividing lamina

52506, 52573, 411378, 411386, 411411, E04B 178, E04B 138

Patent

active

044533616

ABSTRACT:
A screw for use in fastening resilient insulation to a metal building surface having threads near its tip and a reduced-diameter portion just above the threads, so that when the threaded portion has been screwed entirely through an opening in the substrate, the reduced-diameter portion of the screw is free to reciprocate in the opening and then permit compression and reexpansion of the insulation while still retaining it against lift-off.

REFERENCES:
patent: 676240 (1901-06-01), Latty
patent: 2751052 (1956-06-01), Flora
patent: 3088361 (1963-05-01), Hallock
patent: 3478639 (1969-11-01), Gruca
patent: 3591876 (1971-07-01), Swindlehurst
patent: 4003175 (1977-01-01), Patry
patent: 4074501 (1978-02-01), Sandqvist
patent: 4361997 (1982-12-01), DeCaro

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