US PATENT SUBCLASS 251 / 32
.~.~ Latched pilot valve

Current as of: June, 1999
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251 /   HD   VALVES AND VALVE ACTUATION

12  DF  FLUID ACTUATED OR RETARDED {12}
25  DF  .~ Pilot or servo type motor {8}
32.~.~ Latched pilot valve

DEFINITION

Classification: 251/32

(under subclass 25) Subject matter in which the pilot valve is engaged in one position by a detent which retains the pilot valve in that position until released by the detent.

SEE OR SEARCH THIS CLASS, SUBCLASS:

66+, for biased trip valves, especially subclass 73 for fluid pressure trip actuation.

89+, for valve actuators associated with means for blocking or disabling the actuator.