US PATENT SUBCLASS 417 / 409
.~.~.~.~ Axial flow motor and centrifugal pump

Current as of: June, 1999
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417 /   HD   PUMPS

321  DF  MOTOR DRIVEN {32}
375  DF  .~ Fluid motor {9}
405  DF  .~.~ Rotary motor {1}
406  DF  .~.~.~ Unitary pump and motor rotors {3}
409.~.~.~.~ Axial flow motor and centrifugal pump

DEFINITION

Classification: 417/409

(under subclass 406) Apparatus in which the direction of flow of motive fluid through the motor rotor is substantially parallel to the axis of rotation while the fluid is acting on the rotor to produce work; the rotary pumping member producing a rotary movement of the pump fluid to utilize the centrifugal force developed thereby to effect the pumping action.