US PATENT SUBCLASS 417 / 326
.~ Including means for selectively varying motor speed or rotary motor direction


Current as of: June, 1999
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417 /   HD   PUMPS

321  DF  MOTOR DRIVEN {32}
326.~ Including means for selectively varying motor speed or rotary motor direction


DEFINITION

Classification: 417/326

(under subclass 321) Apparatus in which there is provided motor control means which is operable at the will of a human operator, said control means being effective upon operation thereof to either (1) change the rate of movement of a motor working member or (2) change the direction of working member rotation in a motor of the type having a rotating working member.

(1) Note. The motor control means of this definition may be a reversible flow motive fluid generating pump, flow reversal of said motive fluid generating pump causing reversal or rotation of a rotary motor.