US PATENT SUBCLASS 73 / 54.06
.~.~.~.~ By pressure measuring

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

53.01  DF  LIQUID ANALYSIS OR ANALYSIS OF THE SUSPENSION OF SOLIDS IN A LIQUID {15}
54.01  DF  .~ Viscosity {11}
54.04  DF  .~.~ Friction tube (e.g., capillary) {3}
54.05  DF  .~.~.~ Plural tubes {1}
54.06.~.~.~.~ By pressure measuring

DEFINITION

Classification: 73/54.06

By pressure measuring:

(under subclass 54.05) Subject matter wherein the determination includes measuring the force, per unit area, of the fluid moving through the conduit.

SEE OR SEARCH THIS CLASS, SUBCLASS:

54.14, for determining viscosity by measuring pressure of the liquid flowing through an orifice, nozzle, or extrusion means.

61.47, for measuring pressure in order to determine the liquid constituent of a liquid mixture.

61.73, for measuring pressure of a liquid in order to determine its solid content.

61.78, for measuring pressure to determine the content or effect of a constituent of a liquid mixture.

64.46, for measuring differential pressure to determine vapor pressure.

64.51, for measuring pressure to determine surface tension. 700+, for liquid pressure measurement, per se.