US PATENT SUBCLASS 73 / 861.69
.~.~ Centrifugal

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}
861.69.~.~ Centrifugal

DEFINITION

Classification: 73/861.69

Centrifugal:

(under subclass 861.42) Subject matter wherein the fluid is caused to curve from a normally straight path so as to

produce a centrifugal change of pressure which is taken as a measure of the rate of flow of the fluid.