US PATENT SUBCLASS 202 / 173
.~.~.~.~.~ Series


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}
172  DF  .~.~.~.~ Plural {1}
173.~.~.~.~.~ Series {1}
174  DF  .~.~.~.~.~.~> Multiple effect


DEFINITION

Classification: 202/173

A plurality of stills so connected that either the vapor or the residue of one flows into the other.

(1) Note. When the vapor flows from one still to another in this subclass, it enters into the still itself, and is not simply carried through in pipes, which structure is found in the next subclass.

SEE OR SEARCH THIS CLASS, SUBCLASS:

155,

SEE OR SEARCH CLASS

196, Mineral Oils: Apparatus,

106,.

203, Distillation: Processes, Separatory, 71+, for a separatory distillation process in which the vapor or residue of a distillation operation is the distilland in a subsequent distillation operation.