Patent ID: 11934208
Assignee: TYCO FIRE PRODUCTS LP
Field: Control (Instruments)
Classification: CPC G  A | IPC A  G

Claim 3:
4. The system of claim 3, the thermostatic actuator comprising:
an actuable piston at least partially positioned within a body of the actuator;
a thermally sensitive material contained by the body of the actuator; and
a biasing member;
wherein the thermally sensitive material is configured to expand when the temperature associated with the foam concentrate reaches a minimum working temperature, wherein the actuable piston is acted on by the expansion of the thermally sensitive material when the temperature associated with the foam concentrate is at or above the minimum working temperature and a portion of the actuable piston is pushed out of the body of the actuator, and wherein the biasing member biases the actuable piston in a direction back into the body of the actuator.