US PATENT SUBCLASS 222 / 298
.~.~.~.~ Groove or trap rotor slidable through discharge channel

Current as of: June, 1999
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222 /   HD   DISPENSING

251  DF  WITH DISCHARGE ASSISTANT (E.G., IMPELLER, PUMP, CONVEYER, MOVABLE TRAP CHAMBER, ETC.) {30}
282  DF  .~ With discharge volume varying means {12}
293  DF  .~.~ Rotor having plural adjustable parts of rotor form {2}
295  DF  .~.~.~ Axially adjustable {5}
298.~.~.~.~ Groove or trap rotor slidable through discharge channel {2}
299  DF  .~.~.~.~.~> With channel blocking means {1}
301  DF  .~.~.~.~.~> Rose washer bearing

DEFINITION

Classification: 222/298

(under subclass 295) Dispensers having at least one grooved or trap carrying rotor part bodily movable in and/or through a discharge channel and relative to another rotor part so as to vary either (1) the area available for passage of the material or (2) the character of the means acting on the material to produce discharge.