US PATENT SUBCLASS 239 / 301
.~.~ Rotatable port-carrying member effects flow control

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

290  DF  INCLUDING SUPPLEMENTAL GAS SHAPING OR SHIELDING JET {8}
300  DF  .~ Adjustable gas flow directing or controlling means {1}
301.~.~ Rotatable port-carrying member effects flow control

DEFINITION

Classification: 239/301

(under subclass 300) Apparatus in which gas regulation is effected by the movement of the jet port carrier mounted for rotary motion.