Intumescent materials

Details Intumescent materials Intumescent materials

1985-10-09

1987-03-10

Kittle, John E.

Stock material or miscellaneous articles

Material designed to be responsive to temperature, light,...

428921, 52 1, 52232, E16J 1500, E06B 716

Patent

active

046490892

ABSTRACT:
The invention provides an improved casing material for locating, at door edges a brush-like material for preventing the passage of cold smoke, and an intumescent material which expands to obstruct. A tubular body has a slot for the bristles which project outwardly from a brush-base located inside the casing, and an internal housing for the brush base isolates the slot from an interior portion of the body. A second slot is provided opposite the first slot. The construction of the body is such that the slots can be opened locally so that the brush base can be fitted through the first slot and the intumescent material may be passed, in strip form, through the second slot.

REFERENCES:
patent: 3955330 (1976-05-01), Wendt
patent: 3964214 (1976-06-01), Wendt
patent: 4045930 (1977-09-01), Dixon
patent: 4144688 (1979-03-01), Dixon
patent: 4354304 (1982-10-01), Dixon

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