Damper assembly

Details Damper assembly Damper assembly

1980-12-19

1983-01-04

Weakley, Harold W.

Fluid handling

Destructible or deformable element controlled

Heat destructible or fusible

137 80, 13751215, 1375124, 1375125, 160 1, 49 1, F16K 1738

Patent

active

043668305

ABSTRACT:
A damper assembly is provided which comprises a duct having an opening and a blade movable between a closed position in covering relation to a portion of the opening and an open position. A fusible retainer holds the blade in its open position and releases the blade when the retainer is sufficiently heated. When released, the blade is urged to its closed position by a hinge member which connects the blade to the duct. The blade in its closed position cooperates with the hinge member to substantially prevent flow of fluid through the opening.

REFERENCES:
patent: 3009473 (1961-11-01), Heunen
patent: 3720153 (1973-03-01), Jardinier
patent: 3831628 (1974-08-01), Kintner
patent: 4263930 (1981-04-01), McCabe
patent: 4295486 (1981-10-01), McCabe

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