US PATENT SUBCLASS 91 / 232
.~ Valveless distribution

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}
232.~ Valveless distribution {2}
233  DF  .~.~> Distribution by reciprocating working member moving about an axis
234  DF  .~.~> Working member formed to provide internal fluid flow passage

DEFINITION

Classification: 91/232

(under subclass 218) Apparatus in which closing and opening of fluid flow paths for cyclically admitting and exhausting motive fluid to and from an expansible chamber of the motor are accomplished by movement of the motor working member to and from positions in which it obstructs fluid flow through said flow paths, said flow paths not being further controlled by a cyclically operated valve.

SEE OR SEARCH THIS CLASS, SUBCLASS:

230+, for a cyclically operable motor having codirectional, separately supplied working members, the control of one working member usually being by valveless distribution.

SEE OR SEARCH CLASS

73, Measuring and Testing,

242, for volume or rate of flow meters of the expansible chamber type having valveless distribution of metered fluid.