US PATENT SUBCLASS 202 / 170
.~.~.~.~ Still extractor

Current as of: June, 1999
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202 /   HD   DISTILLATION: APPARATUS

81  DF  APPARATUS {4}
82  DF  .~ Systems {6}
152  DF  .~.~ Separatory {3}
163  DF  .~.~.~ Still {13}
170.~.~.~.~ Still extractor

DEFINITION

Classification: 202/170

Devices in which extraction and separation by distilling occur in the same vessel.

SEE OR SEARCH CLASS

134, Cleaning and Liquid Contact With Solids,

11, for a cleaning process including the step exposing the work to a gaseous or vapor treating agent.