US PATENT SUBCLASS 73 / 861.82
.~.~.~ Pressure responsive valve or restriction

Current as of: June, 1999
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73 /   HD   MEASURING AND TESTING

861  DF  VOLUME OR RATE OF FLOW {23}
861.79  DF  .~ Using turbine {5}
861.81  DF  .~.~ With response modification {2}
861.82.~.~.~ Pressure responsive valve or restriction

DEFINITION

Classification: 73/861.82

Pressure responsive valve or restriction:

(under subclass 861.81) Subject matter wherein a valve or restriction responds to fluid pressure to control the flow through the meter.

(1) Note. This includes altering the amount of fluid directed to a shunt.

SEE OR SEARCH THIS CLASS, SUBCLASS:

202+, wherein a portion of the fluid is separated from the main flow and the meter is located in the separated portion.