US PATENT SUBCLASS 416 / 48
.~.~.~ Motor carried by impeller

Current as of: June, 1999
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416 /   HD   FLUID REACTION SURFACES (I.E., IMPELLERS)

31  DF  WITH CONTROL MEANS RESPONSIVE TO NON-CYCLIC CONDITION SENSING, CENTRIFUGAL ACTUATION, TORQUE OR THRUST {9}
44  DF  .~ Impeller rotation speed responsive {6}
47  DF  .~.~ Control by means of separate motor {1}
48.~.~.~ Motor carried by impeller

DEFINITION

Classification: 416/48

(under subclass 47) Apparatus wherein the motor is carried by and rotates with the impeller*.

(1) Note. The motor may be carried by the working member*, the carrier* for the working member, the impeller shaft or any other part so closely associated with the impeller as to partake of the working member movement.