US PATENT SUBCLASS 73 / 863.71
.~ Conduit or passageway section capture chamber

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

863  DF  SAMPLER, SAMPLE HANDLING, ETC. {11}
863.71.~ Conduit or passageway section capture chamber {1}
863.72  DF  .~.~> Single valve unit {1}

DEFINITION

Classification: 73/863.71

Conduit or passageway section capture chamber:

(under subclass 863) Subject matter comprising means to isolate a fluid sample within a finite length of flow channel and means to withdraw the isolated sample from the length of

flow channel.

(1) Note. Source fluid normally flows through the flow channel, and isolation means are frequently in the form of valves at both ends of a section of the flow channel.

SEE OR SEARCH THIS CLASS, SUBCLASS:

863.81+, for a capture chamber movable through a conduit wall.

SEE OR SEARCH CLASS

137, Fluid Handling, for fluid flow confining systems not specialized to sampling.