US PATENT SUBCLASS 415 / 29
.~.~ Motor and upstream working fluid flow control

Current as of: June, 1999
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415 /   HD   ROTARY KINETIC FLUID MOTORS OR PUMPS

13  DF  WITH CONTROL MEANS RESPONSIVE TO NON-CYCLIC CONDITION SENSING, CENTRIFUGAL ACTUATION OR TORQUE {13}
26  DF  .~ Responsive to moving member developed fluid force, current or pressure {3}
29.~.~ Motor and upstream working fluid flow control

DEFINITION

Classification: 415/29

(under subclass 26) Apparatus comprising means to regulate

the flow of working fluid* to the runner* of a motor*.

(1) Note. Typical of the devices included under this definition is a motor* in which a small pump* driven by the shaft acts on a fluid, the pressure of which acts on a means controlling flow of working fluid* to the motor.