Thermally responsive acoustic fire alarm assembly

Details Thermally responsive acoustic fire alarm assembly Thermally responsive acoustic fire alarm assembly

G - Physics

08

B

116/61

G08B 17/06 (2006.01)

Patent

CA 1139998

THERMALLY RESPONSIVE ACOUSTIC FIRE ALARM ASSEMBLY ABSTRACT OF THE DISCLOSURE A heat-sensitive unit is responsive to pre- determined ambient temperature conditions above normal room temperature for activating an alarm assembly for protection against heat or fire. The unit has thin metal plates soldered face to face with eutectic solder, with large surface area and small mass and minimum contact with the elements to which they are connected. The alarm assembly has a supporting housing, an acoustic device, a coupler assembly supported by said housing and connecting said acoustic device and a container. The unit is part of a thermally responsive assembly mounted on said coupler assembly. The container can be snapped into place in the coupler assembly. A resilient cantilever-type conduit connects the horn to the gas container and it is bent on activation of a heat-sensitive element to open a valve in the container and allow gas to pass through the conduit to the acoustic device. A visual signal is given by swinging down of a guard member if the container contents leak.

296084

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