US PATENT SUBCLASS 417 / 571
.~.~.~ Inlet and discharge distributors

Current as of: June, 1999
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417 /   HD   PUMPS

437  DF  EXPANSIBLE CHAMBER TYPE {40}
559  DF  .~ Having pumping chamber pressure responsive distributor {8}
569  DF  .~.~ Distributor positioned opposite pumping member end face {2}
571.~.~.~ Inlet and discharge distributors

DEFINITION

Classification: 417/571

(under subclass 569) Apparatus in which an inlet valve and a discharge valve are positioned in a wall opposite the end face of said pumping member.