US PATENT SUBCLASS 417 / 415
.~.~ Reciprocating rigid pumping member

Current as of: June, 1999
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417 /   HD   PUMPS

321  DF  MOTOR DRIVEN {32}
410.1  DF  .~ Electric or magnetic motor {10}
415.~.~ Reciprocating rigid pumping member {2}
416  DF  .~.~.~> Reciprocating motor {1}
419  DF  .~.~.~> Relatively movable pumping members

DEFINITION

Classification: 417/415

Apparatus under subclasses 410.1+ in which the pump is of the type comprising a rigid pumping member which alternately moves to-and-fro (includes oscillatory movement).