US PATENT SUBCLASS 91 / 291
.~.~.~ Port controls separate motor for intermediate pilot valve

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


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}
291.~.~.~ Port controls separate motor for intermediate pilot valve {1}
292  DF  .~.~.~.~> Distributor controls passage from port

DEFINITION

Classification: 91/291

(under subclass 290) Apparatus in which the port in the output motor working chamber controls a pilot valve motor which further controls the motor operating the distributor for the output motor.