US PATENT SUBCLASS 417 / 47
.~.~ Rotary nonexpansible chamber-type motor

Current as of: June, 1999
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417 /   HD   PUMPS

1  DF  CONDITION RESPONSIVE CONTROL OF PUMP DRIVE MOTOR {22}
46  DF  .~ By controlling drive motor motive fluid {1}
47.~.~ Rotary nonexpansible chamber-type motor

DEFINITION

Classification: 417/47

(under subclass 46) Subject matter in which the motor is of the type in which the drive element rotates about an axis and derives its power by the fluid impacting against the drive element.