US PATENT SUBCLASS 251 / 72
.~ Weight biased trip


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

66  DF  BIASED TRIP {5}
72.~ Weight biased trip


DEFINITION

Classification: 251/72

(under subclass 66) Subject matter wherein the biasing means for the trip or valve includes a gravity urged weight, which, when the latch is tripped, effects or assists the opening or closing of the valve.

SEE OR SEARCH THIS CLASS, SUBCLASS:

338, for weight biased valves, and see the search notes thereto.