US PATENT SUBCLASS 417 / 393
.~.~.~ With additional unitary common pumping and motor working member

Current as of: June, 1999
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417 /   HD   PUMPS

321  DF  MOTOR DRIVEN {32}
375  DF  .~ Fluid motor {9}
392  DF  .~.~ Common pumping and motor working member {2}
393.~.~.~ With additional unitary common pumping and motor working member

DEFINITION

Classification: 417/393

(under subclass 392) Apparatus in which the movable chamber dividing member is rigidly secured to a second movable chamber dividing member which separates a second single continuous chamber into a single motor and pump chamber portions.