US PATENT SUBCLASS 239 / 417
.~.~.~ Relatively movable flow paths

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.~.~.~ Relatively movable flow paths

DEFINITION

Classification: 239/417

(under subclass 416.5) Apparatus in which relative movement between the coaxially arranged flow lines controls fluid flow.

SEE OR SEARCH THIS CLASS, SUBCLASS:

214.19, for relatively axially movable concentric flow paths for controlling the flow of one or more of a plurality of separate fluid streams for commingling thereof, at least one of said concentric flow paths rotating continuously around the flow axis.

416, for similarly arranged flow lines, however, where valving means are included for each of diverse fluids.