US PATENT SUBCLASS 417 / 535
.~.~.~ All discharge distributors positioned laterally of pumping member path

Current as of: June, 1999
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417 /   HD   PUMPS

437  DF  EXPANSIBLE CHAMBER TYPE {40}
521  DF  .~ Plural pumping chambers {7}
534  DF  .~.~ Chambers formed at opposite ends of rectilinearly moving pumping member {1}
535.~.~.~ All discharge distributors positioned laterally of pumping member path {1}
536  DF  .~.~.~.~> Inlet and discharge distributors positioned laterally of pumping member path {1}

DEFINITION

Classification: 417/535

(under subclass 534) Apparatus in which there is provided inlet discharge valve means for controlling flow of pump fluid to and from the chambers, the discharge valves for the several chambers being located at a position radially spaced from the path of movement of the pumping member.