Fire barrier device

Details Fire barrier device Fire barrier device

1980-05-29

1982-12-21

Faw, Jr., Price C.

Static structures (e.g., buildings)

Tensioned or flexed sheet facing

52232, 174151, 285187, 285200, E04B 548

Patent

active

043642101

ABSTRACT:
Penetrations or passageways through fire resistant walls, floors, partitions and ceilings are frequently necessary to provide for present or future pipes, cables or conduits. A device fixed to the walls of the penetration provides a barrier to prevent the passing of fire, heat, smoke and toxic gases, and water through the penetration under adverse conditions of fire or elevated temperatures. The device includes at least one end cap capable of providing a cold smoke seal. An intumescent material which in the event of excessive heat or fire, foams and expands to substantially fill the penetration, is provided. The device may include a laminated restraining layer to provide assurance that the char formed during the intumescent reaction to fire and heat, is generated so that the penetration cavity is optimally filled.

REFERENCES:
patent: 3126089 (1964-03-01), Hugli
patent: 3476411 (1969-11-01), Herbert
patent: 3864833 (1975-02-01), McMarlin
patent: 3932696 (1976-01-01), Fork
patent: 3995102 (1976-11-01), Kohant
patent: 4061344 (1977-12-01), Bradley
patent: 4136707 (1979-01-01), Gaillot
patent: 4221092 (1980-09-01), Johnson
patent: 4232493 (1980-11-01), Gray
patent: 4273879 (1981-06-01), Langer
U.S. patent application 891,397 filed Mar. 31, 1978.

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