Access door eliminator for curtain fire dampers

Details Access door eliminator for curtain fire dampers Access door eliminator for curtain fire dampers

1994-03-04

1995-02-28

Joyce, Harold

Ventilation

Having inlet airway

Including automatic control means

16 485, 160 1, 454369, E05F 1520

Patent

active

053932633

ABSTRACT:
A mechanism is provided to engage a resettable link in a curtain-type fire damper and release and reset that link so that the blades of the damper can unfold. The mechanism is actuated remotely and mechanically without the need for an access door.

REFERENCES:
patent: 3796248 (1974-03-01), McCabe
patent: 3796249 (1974-03-01), McCabe
patent: 4195384 (1980-04-01), McCabe
patent: 4287638 (1981-09-01), McCabe
patent: 4648310 (1987-03-01), Wescoat et al.
patent: 5261186 (1993-11-01), Saino

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