US PATENT SUBCLASS 239 / 417.3
.~.~.~ Valving means for central fluid

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}
416.5  DF  .~.~ Concentric flow paths {2}
417.3.~.~.~ Valving means for central fluid

DEFINITION

Classification: 239/417.3

(under subclass 416.5) Apparatus including means to control the flow of fluid through the innermost fluid line.