Fire damper

Details Fire damper Fire damper

1989-10-31

1990-09-25

Basinger, Sherman

Fire extinguishers

Special applications

Condition responsive control

98 4025, 236 492, F24F 700

Patent

active

049586874

ABSTRACT:
A fire damper having a duct, a flap rotatable about an axis crossing the duct, an engaging member, and a spring ordinarily urging the flap to rotate in a direction. The fire damper has a trigger mechanism comprising a leaf spring fixed to the flap and having a free end engageable with the engaging member so as to stop the flap at an angle parallel with air flow. The fire damper further has a heat detecting and actuating member made of form memory alloy spring which has an end fixed with the flap and has another end fixed to the leaf spring at a position near the free end of the leaf spring.

REFERENCES:
patent: 3436016 (1969-04-01), Edwards
patent: 3912223 (1975-10-01), Iwata
patent: 4040304 (1977-08-01), McCabe
patent: 4080978 (1978-03-01), McCabe
patent: 4497241 (1985-02-01), Ohkata
patent: 4697736 (1987-10-01), Kolt
patent: 4817912 (1989-04-01), McCabe

Affiliated with

Also associated with

Rating

Fire damper does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Fire damper, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fire damper will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-324440