US PATENT SUBCLASS 239 / 581.1
.~ Rotary valving

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

569  DF  INCLUDING VALVE MEANS IN FLOW LINE {11}
581.1.~ Rotary valving {1}
581.2  DF  .~.~> Including axial movement {1}

DEFINITION

Classification: 239/581.1

Rotary valving:

(under subclass 569) Apparatus in which the flow regulating means is constrained to move in a direction about some axis of the said regulating means.

SEE OR SEARCH CLASS

251, Valves and Valve Actuation,

304+, for rotary valves.