US PATENT SUBCLASS 73 / 32 R
SPECIFIC GRAVITY OR DENSITY OF LIQUID OR SOLID

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

32 RSPECIFIC GRAVITY OR DENSITY OF LIQUID OR SOLID {7}
433  DF  .~> With weighing feature {3}
438  DF  .~> Hydrostatic pressure type {1}
440  DF  .~> Multiple floats of graduated density
441  DF  .~> Portable hand manipulable syringe type {1}
444  DF  .~> Freely vertical reciprocable float with carried indicium {4}
451  DF  .~> Float operated indicator {3}
32 A  DF  .~> Involving vibration of substance or the measuring apparatus

Unofficial Alpha Subclasses: R A

DEFINITION

Classification: 73/32

(under the class definition) Subject matter for determining the density and/or specific gravity of liquids or solids.

(1) Note. Included here is an apparatus for measuring density of a liquid suspension of a solid, per se.

SEE OR SEARCH THIS CLASS, SUBCLASS:

30, for determination of the density or specific gravity of gases.

152.05, for determining a characteristic of a formation in a borehole by measuring density.

SEE OR SEARCH CLASS

364, Electrical Computers and Data Processing Systems, 558, for measuring the density of a substance which involves a computation and only nominal claimed structure to the measuring device.