US PATENT SUBCLASS 239 / 416.4
.~.~.~ Concentric 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}
413  DF  .~.~ Valving means for each of diverse fluids {5}
416.4.~.~.~ Concentric flow paths

DEFINITION

Classification: 239/416.4

(under subclass 413) Apparatus comprising flow lines which are coaxially arranged with one surrounding the other, the means controlling fluid flow through at least one of the lines.

SEE OR SEARCH THIS CLASS, SUBCLASS:

416, for concentric flow paths, relative movement between which affects valving, there being a valving means for each of diverse fluids.