US PATENT SUBCLASS 137 / 514.5
.~.~.~ End of valve moves inside dashpot chamber

Current as of: June, 1999
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137 /   HD   FLUID HANDLING

455  DF  LINE CONDITION CHANGE RESPONSIVE VALVES {11}
511  DF  .~ Direct response valves (i.e., check valve type) {14}
514  DF  .~.~ With retarder or dashpot {2}
514.5.~.~.~ End of valve moves inside dashpot chamber {1}
514.7  DF  .~.~.~.~> Enlarged piston on end of valve stem

DEFINITION

Classification: 137/514.5

(under subclass 514) Devices in which the end of the valve reciprocates in a dashpot chamber.