US PATENT SUBCLASS 239 / 496
.~.~.~.~ Slot in disc face

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}
494  DF  .~.~.~ Whirler is slotted or apertured flat disc or plate {3}
496.~.~.~.~ Slot in disc face

DEFINITION

Classification: 239/496

(under subclass 494) Apparatus in which the passages causing the fluid to spin or rotate extend only partly through the axial extent of the member and are carried in a plane substantially parallel to the face thereof.