US PATENT SUBCLASS 91 / 13
.~.~ By shifting distributor seat

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}
12  DF  .~ Cyclically operable motor with port reversing {3}
13.~.~ By shifting distributor seat

DEFINITION

Classification: 91/13

(under subclass 12) Apparatus in which fluid connections to the motor for a given position of the motor are reversed by adjusting the distributor seat, i.e., the part of the distributor which is fixed during normal cyclic operation of the motor.

(1) Note. See (2) Note of subclass 218 of this class for the definition of distributor.