US PATENT SUBCLASS 222 / 402.18
.~.~.~ Separate inlets for gas and material in duct to valve

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}
394  DF  .~ Fluid pressure {9}
402.1  DF  .~.~ Valve actuated by nozzle or through valve outlet {13}
402.18.~.~.~ Separate inlets for gas and material in duct to valve

DEFINITION

Classification: 222/402.18

(under subclass 402.1) Dispensers in which the material passes to the valve which closes the opening through a duct which has an entrance for the pressure fluid as well as one for the material and these entrances are spaced apart.

SEE OR SEARCH THIS CLASS, SUBCLASS:

402.19, for dispensers in which there are separate openings in the duct to the outlet valve and such openings are used alternatively for the material dispensed.