US PATENT SUBCLASS 417 / 308
.~.~ Having additional relief or bypass valve

Current as of: June, 1999
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417 /   HD   PUMPS

279  DF  WITH CONDITION RESPONSIVE PUMPED FLUID CONTROL {22}
307  DF  .~ Pressure responsive relief or bypass valve {4}
308.~.~ Having additional relief or bypass valve

DEFINITION

Classification: 417/308

(under subclass 307) Apparatus in which there is an additional relief or bypass path having an independent control means to control the flow of fluid in the path.