US PATENT SUBCLASS 422 / 83
.~ Means for analyzing gas sample

Current as of: June, 1999
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422 /   HD   CHEMICAL APPARATUS AND PROCESS DISINFECTING, DEODORIZING, PRESERVING, OR STERILIZING

50  DF  ANALYZER, STRUCTURED INDICATOR, OR MANIPULATIVE LABORATORY DEVICE {11}
83.~ Means for analyzing gas sample {6}
84  DF  .~.~> Breath tester {1}
86  DF  .~.~> Including means reacting gas with color indicator {1}
88  DF  .~.~> Including means for adsorbing or absorbing gas into or onto liquid or solid media {4}
93  DF  .~.~> Including means dividing sample stream into plural parallel segments having diverse treating means and the analytical result compared or combined
94  DF  .~.~> Combustible gas detector {1}
98  DF  .~.~> Analysis based on electrical measurement

DEFINITION

Classification: 422/83

Means for analyzing gas sample:

(under subclass 50) Apparatus wherein the material to be analyzed is initially in the gaseous state.

(1) Note. The analysis of a gas which is initially contained in a liquid or solid sample is not contained here (see this class, subclasses 68+).

SEE OR SEARCH CLASS

73, Measuring and Testing,

23.2+, for gas analysis testing not involving a chemical reaction, particularly subclasses 23.35+ for chromatos:graphic testing.