US PATENT SUBCLASS 251 / 53
.~.~ Line connected open accumulating chamber


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

12  DF  FLUID ACTUATED OR RETARDED {12}
48  DF  .~ Dashpot or fluid controlled retarder or timer {5}
53.~.~ Line connected open accumulating chamber


DEFINITION

Classification: 251/53

(under subclass 48) Subject matter in which fluid is diverted from the main flow line into a tank or receiving chamber at atmospheric pressure, which is so related to the valve in the main flow line that the collection of a sufficient quantity of fluid in the tank or receiver actuates or causes the actuation of the valve.

SEE OR SEARCH THIS CLASS, SUBCLASS:

49, for similar devices responsive to the accumulation of diverted fluid to release a latch or trip, and see the note and search notes to that subclass.

SEE OR SEARCH CLASS

137, Fluid Handling,

396+, for self emptying tanks in which the main flow is controlled through the accumulation of fluid in the tank rather than the use of fluid diverted from the main flow line and subclasses 403+ for liquid level responsive or maintaining systems in which the weight of the accumulated fluid controls the accumulation thereof.