US PATENT SUBCLASS 222 / 294
.~.~.~ Substantially coextensive disks and/or rings, axially rotary adjustment

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}
294.~.~.~ Substantially coextensive disks and/or rings, axially rotary adjustment

DEFINITION

Classification: 222/294

(under subclass 293) Dispensers having the rotor form parts, each of generally disk or annular form, of substantially equal diameter and coaxial, and adjustable relative to each other by a motion of rotation about the axis of rotation to change the discharge volume.

SEE OR SEARCH THIS CLASS, SUBCLASS:

302, for disks adjustable linearly along the axis for volume adjusting purpose.