US PATENT SUBCLASS 91 / 394
.~ Working member carries part within working chamber which controls port in chamber end wall

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

392  DF  WORKING MEMBER POSITION RESPONSIVE MOTIVE FLUID CONTROL {9}
394.~ Working member carries part within working chamber which controls port in chamber end wall {2}
395  DF  .~.~> Part movable with respect to working member
396  DF  .~.~> Part forms throttle member

DEFINITION

Classification: 91/394

(under subclass 392) Apparatus in which the working member of the motor has attached thereto or formed as a part thereof a part which directly cooperates with an inlet or exhaust opening in the working chamber end wall to control motive fluid flow through said opening in response to position of said working member, said part being disposed within the working chamber in at least one position of the motor.