US PATENT SUBCLASS 239 / 463
.~ Fluid rotation inducing means upstream of outlet

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

461  DF  FLOW DEFLECTING OR ROTATION CONTROLLING MEANS {9}
463.~ Fluid rotation inducing means upstream of outlet {12}
464  DF  .~.~> And fluid pressure responsive flow modifying means
465  DF  .~.~> And adjustable flow modifier requiring separate insertable tool
466  DF  .~.~> Serially arranged whirlers
467  DF  .~.~> And serially arranged deflector
468  DF  .~.~> Whirl chamber transversely offset to single inflow path (i.e., tangential inflow) {2}
472  DF  .~.~> Peripheral and central flow paths in whirler upstream of single terminal outlet {1}
474  DF  .~.~> Annular egress outlet formed between whirler and casing {1}
476  DF  .~.~> Having flow modifier and external operator therefor carried by nozzle {2}
486  DF  .~.~> Single planar spiral perpendicular to flow path
487  DF  .~.~> Axially extending spiral-type flow passage or diverter {2}
490  DF  .~.~> Integral whirler and terminal head (e.g., terminal nut)
491  DF  .~.~> Apertured cap surmounts whirler organization {3}

DEFINITION

Classification: 239/463

(under subclass 461) Apparatus in which there is provided a means for imparting a spin or swirling motion to the fluid in the flow path prior to reaching the egress opening.

SEE OR SEARCH THIS CLASS, SUBCLASS:

214.21+, for means inducing spin or whirl of any fluid stream in a system in which one fluid is mixed with another fluid downstream of a continuously moving distributor which has discharged one of said fluids.