US PATENT SUBCLASS 222 / 402
.~.~.~ With piston or pulsator holding 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}
401  DF  .~.~ Container-mounted fluid pressure generating pump or pulsator {1}
402.~.~.~ With piston or pulsator holding means

DEFINITION

Classification: 222/402

(under subclass 401) Dispensers provided with means for securing the fluid pressure generating pump or pulsator in one position whereby operation is precluded.

(1) Note. Many of these devices are inter-engaging means on the piston rod and some part stationary relative to the container, so that the inter-engaged parts assist in removing the pump from the container. The piston rod handle may serve in its secured position as a handle for the supply container.

SEE OR SEARCH THIS CLASS, SUBCLASS:

384, for pumps and pulsators having such means and mounted on a supply container to receive therefrom material to be dispensed.