Fire damper

Details Fire damper Fire damper

1976-07-12

1978-07-18

Schwadron, Martin P.

Fluid handling

Destructible or deformable element controlled

Heat destructible or fusible

137 7B, 160 1, 251 58, F16K 1738

Patent

active

041009312

ABSTRACT:
A fire damper of the kind in which at least one flap is pivoted in a duct between a first position in which the flap closes the duct and a second position in which the duct is open. A suitably powered winching motor is adapted to control the movement of the flap through a linkage including a fusible link so that when the motor is energized the flap is moved to its second position or open position provided that the fusible link is still intact whereas when the motor is de-energized the flap is moved to its first or closed position.

REFERENCES:
patent: 2313095 (1943-03-01), Schneider
patent: 2586906 (1952-02-01), Beckett et al.
patent: 3591221 (1971-07-01), Alley
patent: 3646877 (1972-03-01), Ellis
patent: 3960065 (1976-06-01), 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-333885