US PATENT SUBCLASS 91 / 301
.~.~.~ With control of distributor motor supply or exhaust port by distributor working member

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

218  DF  CYCLICALLY OPERABLE {34}
281  DF  .~ Working member controlled motive fluid for distributor motor {12}
290  DF  .~.~ Working member traverses pilot port in working chamber side wall {9}
301.~.~.~ With control of distributor motor supply or exhaust port by distributor working member

DEFINITION

Classification: 91/301

(under subclass 290) Apparatus in which the distributor motor working member controls a port in the distributor motor working chamber which conveys fluid to or from the distributor motor working chamber.

(1) Note. The distributor motor working member controlled port need not actually convey fluid to move said working member, but may merely convey fluid for the purpose of retaining the working member in a reversed position.