US PATENT SUBCLASS 73 / 54.09
.~.~.~ By pressure measuring

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


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}
54.09.~.~.~ By pressure measuring

DEFINITION

Classification: 73/54.09

By pressure measuring:

(under subclass 54.04) Subject matter wherein the determination is made by measuring the force per unit area of the liquid moving through the conduit.

SEE OR SEARCH THIS CLASS, SUBCLASS:

54.06, for measuring viscosity by pressure difference measuring using plural friction tubes.

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.