US PATENT SUBCLASS 222 / 288
.~.~ Interchangeable, removable or selectively usable discharge assistant or element thereof

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}
288.~.~ Interchangeable, removable or selectively usable discharge assistant or element thereof {1}
289  DF  .~.~.~> Reversible

DEFINITION

Classification: 222/288

(under subclass 282) Dispensers having a part or parts of the discharge assistant means exchangeable or removable bodily or to an inoperative relation or position to vary the output.

(1) Note. The discharge assistant may have its capacity or its mode of operation changed, as from conveyor type trap chamber to conveyor type, but it remains in use as the discharge assistant, as distinguished from alternatively usable discharge assistants, where one goes out of use.

SEE OR SEARCH THIS CLASS, SUBCLASS:

278+, for alternatively usable devices.