US PATENT SUBCLASS 91 / 17
.~.~ With speed responsive cutoff of drifting fluid

Current as of: June, 1999
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91 /   HD   MOTORS: EXPANSIBLE CHAMBER TYPE

6  DF  FLUID SUPPLY THROUGH DIVERSE PATHS TO SINGLE EXPANSIBLE CHAMBER {12}
16  DF  .~ Drifting or coasting on lower pressure {2}
17.~.~ With speed responsive cutoff of drifting fluid

DEFINITION

Classification: 91/17

(under subclass 16) Apparatus in which the lower pressure fluid is cut off from the motor in response to the speed of operation of the motor falling below a given amount.

(1) Note. This definition does not include drifting valves which are controlled by a pressure condition of the motor which pressure condition may incidentally be indicative of the speed of the motor.