Fire damper kit

Details Fire damper kit Fire damper kit

1988-06-08

1989-08-22

Walton, George L.

Stoves and furnaces

Stoves

Cooking

49 7, 1262875, 137 74, 137 75, 137315, 251305, F24F 1102, F16K 1740

Patent

active

048585173

ABSTRACT:
A fire damper kit is set forth wherein a fire damper box is formed with a first framing angle iron fixedly secured thereto with a second angle iron slidable thereon to secure said damper and sandwich a fire wall between said opposed angle iron collars. A fusable link positions a fire damper door in a first position to enable heat flow through associated duct work wherein a chimney fire will effect a release of said door to prevent spread of a fire through the duct work.

REFERENCES:
patent: 289274 (1883-11-01), Kopp
patent: 1618551 (1927-02-01), Perry et al.
patent: 2148530 (1939-02-01), Burke
patent: 2270073 (1942-01-01), Merry
patent: 3076469 (1963-02-01), Averill
patent: 3165050 (1965-01-01), Johnson
patent: 3172347 (1965-03-01), Johnson
patent: 3283691 (1966-11-01), Reiter
patent: 3720153 (1973-03-01), Jardinier
patent: 4207864 (1980-06-01), Fischer
patent: 4235256 (1980-11-01), Crawshay
patent: 4413613 (1983-11-01), Dunlap
patent: 4476852 (1984-10-01), Lee
patent: 4691689 (1987-09-01), Shepherd

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