US PATENT SUBCLASS 222 / 301
.~.~.~.~.~ Rose washer bearing

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}
301.~.~.~.~.~ Rose washer bearing

DEFINITION

Classification: 222/301

(under subclass 298) Dispensers in which one rotor part is peripherally fluted and another is a correspondingly interiorly fluted annular disk-like member, the interior flutes of which interfit with the peripheral flutes, the annular disk bearing on the stationary structure and closing the space between it and the first rotor part (to thereby prevent material leakage).

SEE OR SEARCH THIS CLASS, SUBCLASS:

299, and 300, in which search must be completed.