US PATENT SUBCLASS 222 / 397
.~.~ With pressure fluid relieving means

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}
397.~.~ With pressure fluid relieving means

DEFINITION

Classification: 222/397

(under subclass 394) Dispensers having means for discharging the pressure fluid from the container.

(1) Note. Such pressure fluid discharging means must be in addition to the pressure fluid introducing means and/or the dispenser outlet and/or their controls, even though such means may be disclosed as relief means.

SEE OR SEARCH THIS CLASS, SUBCLASS:

396, and see the notes thereto.

SEE OR SEARCH CLASS

137, Fluid Handling,

171+, for fluid separating traps or vents in diverse fluid containing pressure systems.