US PATENT SUBCLASS 222 / 402.12
.~.~.~ With discharge orifice contamination guard


Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use



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}
402.12.~.~.~ With discharge orifice contamination guard


DEFINITION

Classification: 222/402.12

(under subclass 402.1) Dispensers having means associated with the opening through which the dispensed material discharges to the atmosphere to protect the material at the opening from exposure to the atmosphere when not dispensing.