Fire stopping apparatus

Details Fire stopping apparatus Fire stopping apparatus

1988-11-08

1990-01-23

Friedman, Carl D.

Static structures (e.g., buildings)

Draft stop between studs; e.g., fire stop

52232, 52221, 285158, E04B 194

Patent

active

048949663

ABSTRACT:
A fire stopping apparatus includes a metal casing having two side walls with co-extensive openings and an annular outer wall extending between the side walls outwardly from the openings, forming an inwardly open, annular channel. The casing has mounts for connecting the apparatus to a building structure. There is an intumescent material within the channel. A resilient gasket extends from the casing and has an annular inner wall extending inwardly beyond the intumescent material.

REFERENCES:
patent: 3678634 (1972-07-01), Wise et al.
patent: 3864888 (1975-02-01), McMarlin
patent: 4109423 (1978-08-01), Perrain
patent: 4186707 (1979-01-01), Gaillot et al.
patent: 4221092 (1980-09-01), Johnson
patent: 4307546 (1981-10-01), Dolder
patent: 4419535 (1983-12-01), O'Hara
patent: 4424867 (1984-01-01), Mallow
patent: 4538389 (1985-09-01), Heinen
patent: 4559745 (1985-12-01), Wener
patent: 4748787 (1988-06-01), Harbeke

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