US PATENT SUBCLASS 239 / 473
.~.~.~ Coaxial valving means and central port

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}
472  DF  .~.~ Peripheral and central flow paths in whirler upstream of single terminal outlet {1}
473.~.~.~ Coaxial valving means and central port

DEFINITION

Classification: 239/473

(under subclass 472) Apparatus in which there is provided a flow regulating means aligned with the central port in the whirler.

SEE OR SEARCH THIS CLASS, SUBCLASS:

482+, for other whirler devices having a nozzle, regulator and stem all axially aligned.

494+, especially subclass 497 for other whirler discs having angular passages therethrough.