US PATENT SUBCLASS 222 / 339
.~.~ For oscillating discharge assistant

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}
336  DF  .~ With biasing means for discharge assistant and/or its casing {3}
339.~.~ For oscillating discharge assistant

DEFINITION

Classification: 222/339

(under subclass 336) Dispensers in which the device biased has a motion of oscillation about its axis.

SEE OR SEARCH THIS CLASS, SUBCLASS:

516, for biased rotary outlet structures.

517, for oscillating outlet elements.

SEE OR SEARCH CLASS

15, Brushing, Scrubbing, and General Cleaning,

257.072, for an inkwell which includes penpoint-actuated diaphragm means for forcing ink into a dip cup which is not a trap chamber because it is incapable of retaining the ink after cessation of the applied force.