Internally slotted fire seal

Details Internally slotted fire seal Internally slotted fire seal

1978-04-25

1981-01-20

Thibodeau, Paul J.

Stock material or miscellaneous articles

Hollow or container type article

Cellular material derived from plant or animal source

49475, 49493, 52232, 2065241, 277237R, 428920, 428921, E04C 200, E06B 716, B32B 106

Patent

active

042463041

ABSTRACT:
A fire-resistant seal for application to a structure, comprising a holder for securing to the structure, the holder comprising a tubular portion, a fire-resistant barrier material which swells under fire-conditions being retained within the tubular portion of the holder, the tubular portion having an elongate actual or incipient opening extending therealong, the holder also comprising a lateral extension, the lateral extension and the tubular portion of the holder together forming a groove, the opening being in the side of the groove and the lateral extension constituting a guard for the opening. The guard may serve to conceal the opening from view and/or to obstruct the introduction of a straight probe into the opening by a tamperer. When the seal is exposed to hot smoke or flame, the fire resistant barrier material swells and exudes through the opening of the seal to form a fire-resistant barrier.

REFERENCES:
patent: 2804398 (1957-08-01), Hooks
patent: 3142098 (1964-07-01), Oehmig
patent: 4015386 (1977-04-01), Cook
patent: 4045930 (1977-09-01), Dixon
patent: 4069631 (1978-01-01), Nahr
patent: 4144688 (1979-03-01), Dixon

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