US PATENT SUBCLASS 417 / 482
.~.~ Inlet distributor in abutment wall for pumping member

Current as of: June, 1999
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417 /   HD   PUMPS

437  DF  EXPANSIBLE CHAMBER TYPE {40}
481  DF  .~ Oscillating pumping member {2}
482.~.~ Inlet distributor in abutment wall for pumping member {1}
483  DF  .~.~.~> Having discharge distributor in pumping member

DEFINITION

Classification: 417/482

(under subclass 481) Apparatus in which the means for controlling the inlet of fluid into the chamber comprises a distributor positioned in a stationary wall of the chamber which lies in the path of travel of the pumping member at the end of the stroke thereof.