US PATENT SUBCLASS 417 / 485
.~ Delivery to different ports on successive strokes


Current as of: June, 1999
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417 /   HD   PUMPS

437  DF  EXPANSIBLE CHAMBER TYPE {40}
485.~ Delivery to different ports on successive strokes


DEFINITION

Classification: 417/485

(under subclass 437) Apparatus comprising a single pump chamber having a reciprocating pumping member therein and a

plurality discharge outlets communicating therewith, and control means for successively establishing communication with said plural outlets upon successive discharge strokes of said pumping member.