US PATENT SUBCLASS 222 / 21
.~ Cutoff by single trapped volume


Current as of: June, 1999
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222 /   HD   DISPENSING

14  DF  CUTOFF OPERATED BY SELECTIVELY PRESET VOLUME OR RATE OF FLOW-RESPONSIVE MECHANISM {5}
21.~ Cutoff by single trapped volume


DEFINITION

Classification: 222/21

(under subclass 14) Dispensers having means capable of being set in advance of dispensing to accumulate a single trapped volume selected from different possible quantities, and having means controlled by the trapped volume for cutting off

the supply.

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64+, for material level controls for dispensing operations, not selectively preset, though in some cases capable of minor adjustment to insure accuracy in delivering the intended volume.

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92, Expansible Chamber Devices,

13+, for adjustable stroke expansible chamber devices where no dispensing features are claimed.