US PATENT SUBCLASS 417 / 417
.~.~.~.~ Unitary pump and motor working 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  DF  .~.~ Reciprocating rigid pumping member {2}
416  DF  .~.~.~ Reciprocating motor {1}
417.~.~.~.~ Unitary pump and motor working member {1}
418  DF  .~.~.~.~.~> Opposed pumping member faces (e.g., double acting)

DEFINITION

Classification: 417/417

(under subclass 416) Apparatus wherein the working member of the pump and the working member of the motor are either formed as a single element or rigidly interconnected for unitary movement.