Smoke stop

Details Smoke stop Smoke stop

1975-06-25

1976-06-22

Abbott, Frank L.

Static structures (e.g., buildings)

Controlled by condition responsive means

52204, 52232, 49504, E04H 900

Patent

active

039642143

ABSTRACT:
A smoke stop for doors is disclosed. The smoke stop comprises a metal frame with a slot therein extending substantially the entire length of the frame on the door side thereof; a movable lid pivotally attached along one outer edge of the metal frame and releasably attached to a second outer edge of the metal frame thereby completely enclosing the slot in the metal frame; and an intumescent material completely enclosed within the enclosed slot. When the door is closed and the frame and door are subjected to flames, the intumescent material expands causing the sealing of the space between the frame and the door and thereby providing a smoke stop between the door and the frame.

REFERENCES:
patent: 3426491 (1969-02-01), Gaeth et al.
patent: 3566541 (1971-03-01), Coulter

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