US PATENT SUBCLASS 239 / 493
.~.~.~ Downstream end of core member slotted to form whirl passages

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  DF  .~ Fluid rotation inducing means upstream of outlet {12}
491  DF  .~.~ Apertured cap surmounts whirler organization {3}
493.~.~.~ Downstream end of core member slotted to form whirl passages

DEFINITION

Classification: 239/493

(under subclass 491) Apparatus in which the flow conduit has a centrally imperforate member arranged therein so as to provide a flow path therepast with the downstream end face of the member recessed or depressed in a manner to cause the fluid to spin or rotate as it passes through the egress aperture.