US PATENT SUBCLASS 239 / 410
.~.~.~ Fluid pressure operated valve (mixed or unmixed)

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}
408  DF  .~.~ By terminal ejection valve {2}
410.~.~.~ Fluid pressure operated valve (mixed or unmixed) {1}
411  DF  .~.~.~.~> By gas pressure

DEFINITION

Classification: 239/410

(under subclass 408) Apparatus in which the flow controlling means is sensitive to differences of the pressure of one or both the fluids to be discharged or a mixture of such fluids.

SEE OR SEARCH THIS CLASS, SUBCLASS:

87, for injection nozzles with plunger or valve controlled by pressure beyond the nozzle outlet.

533+, for fluid pressure responsive discharge modifier or flow regulator.