US PATENT SUBCLASS 239 / 412
.~.~ Motor or fluid pressure operated valving means

Current as of: June, 1999
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239 /   HD   FLUID SPRINKLING, SPRAYING, AND DIFFUSING

398  DF  COMBINING OF SEPARATELY SUPPLIED FLUIDS (I.E., PLURAL FLOW PATHS) {9}
407  DF  .~ And valving means controlling flow for combining {5}
412.~.~ Motor or fluid pressure operated valving means

DEFINITION

Classification: 239/412

(under subclass 407) Apparatus in which the flow controlling means is actuated by a mechanical motion imparting means or by the force exerted by a fluid medium.

(1) Note. This definition does not include mere check valves, i.e., line flow actuated valves which become

operative at the mere flow of fluid.

SEE OR SEARCH THIS CLASS, SUBCLASS:

410+, for fluid pressure operated terminal ejection valves.