US PATENT SUBCLASS 202 / 185.5
.~.~.~.~.~.~ Helical coil for vapor stream

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}
182  DF  .~.~.~.~ With vapor-treating devices {7}
185.1  DF  .~.~.~.~.~ Condenser {10}
185.5.~.~.~.~.~.~ Helical coil for vapor stream

DEFINITION

Classification: 202/185.5

Helical coil for vapor stream:

(under subclass 185.1) Subject matter in which the vapors to be condensed are passed through a helical coil which is surrounded by a lower temperature gas or liquid.