US PATENT SUBCLASS 91 / 262
.~.~.~ Adjustable cam or cam follower actuated inlet valve

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

218  DF  CYCLICALLY OPERABLE {34}
247  DF  .~ Timing control by relative adjustment of plural movable fluid control elements {3}
252  DF  .~.~ Cut off adjustable relative to admission {4}
262.~.~.~ Adjustable cam or cam follower actuated inlet valve

DEFINITION

Classification: 91/262

(under subclass 252) Apparatus in which the inlet valve is cyclically moved, to control the flow of motive fluid to the working chamber, by cam means, and means are provided to adjust the cam means, or a valve driving member moved by the cam means, so as to vary the time of closing of the inlet valve.

(1) Note. For purposes of this definition, a shaft mounted eccentric and its strap and rod, are not considered to be a cam and cam follower.

SEE OR SEARCH THIS CLASS, SUBCLASS:

330+, for cyclically operable expansible chamber motors with means to adjust the connection between the working member and the distributing valve, other than those which adjust timing of fluid control events as defined under subclass 247, and especially subclasses 331+ for such adjustable connections which include a cam.