US PATENT SUBCLASS 73 / 61.67
.~.~.~.~ By pressure measurement

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}
61.41  DF  .~ Content or effect of a constituent of a liquid mixture {8}
61.63  DF  .~.~ Settling or filtering ability {2}
61.65  DF  .~.~.~ Sedimentation rate {4}
61.67.~.~.~.~ By pressure measurement

DEFINITION

Classification: 73/61.67

By pressure measurement:

(under subclass 61.65) Subject matter wherein the determination is made by measuring pressure.

SEE OR SEARCH THIS CLASS, SUBCLASS:

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

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.