Pneumatically operated fire damper

Details Pneumatically operated fire damper Pneumatically operated fire damper

1986-07-21

1988-04-19

Schwartz, Larry I.

Fire extinguishers

Special applications

Condition responsive control

98 4216, 98 86, 169 61, 137 77, F24F 1104

Patent

active

047381892

ABSTRACT:
A fire damper operated by an air motor for incorporating into the pneumatic piping system of a building. The damper motor holds the damper open under the influence of pressurized air from the system. A valve actuator in the flow channel of the damper has a fusible link maintaining the actuator in a standby condition. Temperature sufficient to destroy the integrity of the link permits an abutment on the actuator to swing to a position allowing the valve member to shift to interrupt the air pressure applied to the motor. This closes the damper. The damper may also be closed independently of operation of the actuator by interrupting the flow of pressurized air to the motor.

REFERENCES:
patent: 4397223 (1983-08-01), Maxson
patent: 4432272 (1984-02-01), Becelaere

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2169468