US PATENT SUBCLASS 222 / 299
.~.~.~.~.~ With channel blocking means

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  DF  .~.~.~.~ Groove or trap rotor slidable through discharge channel {2}
299.~.~.~.~.~ With channel blocking means {1}
300  DF  .~.~.~.~.~.~> With nonrotary sleeve

DEFINITION

Classification: 222/299

(under subclass 298) Dispensers having means associated with axially adjustable rotor parts to block the portion of the discharge channel not directing material to or from the discharge effecting portion of the rotor.

(1) Note. Such channel blocking means is not independent of the slidable rotor part and usually is movable an amount proportionate to the slidable adjusting motion thereof.