US PATENT SUBCLASS 202 / 254
.~.~ Offtakes

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

81  DF  APPARATUS {4}
239  DF  .~ Elements {10}
254.~.~ Offtakes {6}
255  DF  .~.~.~> Dip pipes and mains {1}
257  DF  .~.~.~> Plural
258  DF  .~.~.~> Valved
259  DF  .~.~.~> Jacketed
260  DF  .~.~.~> Cooled
261  DF  .~.~.~> Residue offtakes

DEFINITION

Classification: 202/254

Tubes or pipes for carrying off the vapors from distilling chambers.

(1) Note. If claimed in combination with hydraulic main or its equivalent, the patent is to be classified in this class, subclasses 255 and 256.

SEE OR SEARCH CLASS

196, Mineral Oils: Apparatus,

136,.

266, Metallurgical Apparatus,

144+, for treating vessels having means to handle gases evolved therein.