US PATENT SUBCLASS 222 / 14
CUTOFF OPERATED BY SELECTIVELY PRESET VOLUME OR RATE OF FLOW-RESPONSIVE MECHANISM

Current as of: June, 1999
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222 /   HD   DISPENSING

14CUTOFF OPERATED BY SELECTIVELY PRESET VOLUME OR RATE OF FLOW-RESPONSIVE MECHANISM {5}
15  DF  .~> With means to prevent change of setting during discharge
16  DF  .~> Operating cycle including reset to starting position
17  DF  .~> Moving cutoff operating element with variable initial position {2}
21  DF  .~> Cutoff by single trapped volume
22  DF  .~> Cutoff set after discharge begins

DEFINITION

Classification: 222/14

(under the class definition) Dispensers having means to terminate material discharge (i.e., cut-off), which means is caused to operate by some character of interconnection with mechanism which senses or determines volume or rate of flow, which mechanism is designed to be preset, (i.e., set at the desired volume or rate of flow) prior to initiation of the dispensing operation or at any time during the dispensing to discharge the final unit of a desired volume. The mechanism may be a volume meter, rate of flow meter, float, follower, pump, etc.

(1) Note. Selective presetting may involve only a choice between two or more fixed quantity dispensing mechanism which are volume or rate of flow controlled.

(2) Note. Cut-off in the case of reciprocating pump mechanism requires holding the pump against further operation not merely determining the length of a stroke.

(3) Note. Preset devices which operate mechanically, as by counting a number of mechanical movements, without regard to whether or not material is actually dispensed, are not here, nor under "automatic", but in appropriate following subclasses, especially under indicators, subclasses 23+ or timing mechanism, subclass 70.

(4) Note. See Lines With Other Classes and Within This Class, Volume or Rate of Flow Meters, Recorders, Registers,

in the main class definition for the general line on volume or rate of flow meters.

SEE OR SEARCH THIS CLASS, SUBCLASS: 23+, for dispensers combined with recorders, registers, etc., without selectively preset volume or rate of flow operated cut-off, see note 3.

59+, for rate of flow mechanism operated cut-off without selective presetting means.

70, see note 3, for dispensers with mechanism to time discharge by operations other than counting dispensing cycles or units dispensed.

71+, for dispenser with volume or rate of flow metering without a cut-off operated thereby.

282+, for dispensers having discharge assistants with means to vary or adjust the volume discharged.