US PATENT SUBCLASS 222 / 321.2
.~.~.~ With precompression


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}
320  DF  .~ With movable nozzle interconnected therewith {1}
321.1  DF  .~.~ With material supply container and discharge assistant casing {6}
321.2.~.~.~ With precompression


DEFINITION

Classification: 222/321.2

With precompression:

(under subclass 321.1) Subject matter including means for preventing a flow of material from the discharge assistant until a predetermined discharge pressure is reached.