US PATENT SUBCLASS 91 / 269
.~.~ Biased valve with trip


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}
265  DF  .~ Relatively movable inlet and exhaust valves {6}
269.~.~ Biased valve with trip


DEFINITION

Classification: 91/269

(under subclass 265) Apparatus in which a releasable drive means is provided to cyclically open the inlet and/or exhaust valve means against a resisting force, and means are provided to release said drive means to allow said force to close the valve means.

SEE OR SEARCH THIS CLASS, SUBCLASS:

247+, for cyclically operable expansible chamber motors having movable relatively adjustable plural fluid control elements with means to adjust said elements so as to vary the timing of fluid control events, and especially subclasses 254 and 260+ for such motors in which the cut off is adjustable

by means of biased valve means with adjustable trip means.

338, for other cyclically operable motors having trip type biased distributors.