US PATENT SUBCLASS 73 / 249
.~.~.~ With fluid actuated valve

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

Internet Version by PATENTEC © 1999      Terms of Use


73 /   HD   MEASURING AND TESTING

861  DF  VOLUME OR RATE OF FLOW {23}
232  DF  .~ Expansible chamber {6}
239  DF  .~.~ Reciprocating piston or cylinder {8}
249.~.~.~ With fluid actuated valve

DEFINITION

Classification: 73/249

(under subclass 239) Meters wherein the distributing valve or valves are actuated by pressure of the fluid being metered, although they may be started by the piston in its movement through contact or by means of a pilot valve operated by the piston or rod.

SEE OR SEARCH THIS CLASS, SUBCLASS:

220, and 271, for other fluid actuated valve combinations.

SEE OR SEARCH CLASS

91, Motors: Expansible Chamber Type,

281+,.