Control damper

Details Control damper Control damper

1975-09-18

1976-12-14

Schwadron, Martin P.

Fluid handling

Destructible or deformable element controlled

Heat destructible or fusible

49 7, 137601, 169 42, 292 81, 292DIG66, F16K 1738

Patent

active

039969525

ABSTRACT:
A control damper is mounted in a building duct system for closing a control opening through a housing or frame and includes a linkage connected to the housing and to a vane positioned in the control opening and is operative for moving the vane between a flow permitting position and a position closing the control opening. The linkage includes a fusible portion permitting a resilient member to move the vane to the position closing the control opening in the event of temperature above the melting point of the fusible portion. Cooperating latch members are mounted on the housing and on the vane and are moved into vane holding engagement after melting of a fusible portion and movement of the vane to the position closing the control opening through the housing.

REFERENCES:
patent: 1288532 (1918-12-01), Drummond
patent: 1788556 (1931-01-01), Wood et al.
patent: 1994365 (1935-03-01), Mathews
patent: 3543440 (1970-12-01), Kurz
patent: 3718081 (1973-02-01), Root

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1339874