US PATENT SUBCLASS 73 / 1.35
.~.~ With pressure measurement or plural flowmeters

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

1.01  DF  INSTRUMENT PROVING OR CALIBRATING {13}
1.16  DF  .~ Volume of flow, speed of flow, volume rate of flow, or mass rate of flow {12}
1.35.~.~ With pressure measurement or plural flowmeters

DEFINITION

Classification: 73/1.35

With pressure measurement or plural flowmeters:

(under subclass 1.16) Subject matter wherein either (a) the apparatus for proving or calibrating or (b) the device being proven or calibrated comprises (1) means for determining a force per unit area exerted by the fluid or (2) more than one means for measuring a flow of a fluent material.

SEE OR SEARCH THIS CLASS, SUBCLASS:

1.57+, for a proving or calibrating apparatus or a device being proven or calibrated other than a volume of flow, speed of flow, volume rate of flow, or mass rate of flow type and utilizing fluent pressure measurement.

700+, for a fluid pressure gauge, per se.