US PATENT SUBCLASS 169 / 60
.~.~ Sensor, control and actuator

Current as of: June, 1999
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169 /   HD   FIRE EXTINGUISHERS

54  DF  SPECIAL APPLICATIONS {9}
56  DF  .~ Condition responsive control {4}
60.~.~ Sensor, control and actuator {1}
61  DF  .~.~.~> Electrical control

DEFINITION

Classification: 169/60

(under subclass 56) Apparatus having (1) means to sense a fire condition, (2) means to transmit a signal from the sensing means in response to a fire sensed by said sensing means and (3) means receiving said transmission and responding to release material to extinguish the sensed fire.