Fire stop closure

Details Fire stop closure Fire stop closure

1993-12-30

1995-06-06

Friedman, Carl D.

Static structures (e.g., buildings)

Controlled by condition responsive means

522208, 52232, 52317, 137 75, 169 48, 220 881, 251 10, F16K 1736

Patent

active

054211271

ABSTRACT:
A closure for preventing transmission of fire and smoke through a wall or floor containing a plastic pipe when the pipe is destroyed by fire, which comprises a flexible fire retardant sleeve encircling the pipe adapted to automatically collapse about the plastic pipe as it is destroyed by fire and thus close off any opening to the next level or adjacent area.

REFERENCES:
patent: 4018983 (1977-04-01), Pedlow
patent: 4109423 (1978-08-01), Perrain
patent: 4136707 (1979-01-01), Gaillot et al.
patent: 4291905 (1981-09-01), Schrock
patent: 4559745 (1985-12-01), Wexler
patent: 4796401 (1989-01-01), Wexler
patent: 4951442 (1990-08-01), Harbeke, Jr.
patent: 5103609 (1992-04-01), Thoreson et al.
patent: 5253455 (1993-10-01), Cross

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