US PATENT SUBCLASS 73 / 64.51
.~.~ By pressure

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}
64.48  DF  .~ Surface tension {3}
64.51.~.~ By pressure

DEFINITION

Classification: 73/64.51

By pressure:

(under subclass 64.48) Subject matter wherein the determination is made by measuring a force per unit area.

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.

700+, for liquid pressure measurement, per se. 862+, for a dynamometer responsive to force or torque.