US PATENT SUBCLASS 73 / 861.46
.~.~.~.~ Including pressure applied to liquid column or reservoir

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

861  DF  VOLUME OR RATE OF FLOW {23}
861.42  DF  .~ Using differential pressure {6}
861.43  DF  .~.~ With time integration {2}
861.45  DF  .~.~.~ By mechanical means {1}
861.46.~.~.~.~ Including pressure applied to liquid column or reservoir

DEFINITION

Classification: 73/861.46

Including pressure applied to liquid column or reservoir:

(under subclass 861.45) Subject matter wherein a liquid column or reservoir is subjected to the pressure to be measured and the subsequent change in level is sensed and utilized as an input to the integration means.