US PATENT SUBCLASS 196 / 106
.~.~ Series stills

Current as of: June, 1999
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196 /   HD   MINERAL OILS: APPARATUS

104  DF  VAPORIZING {22}
105  DF  .~ Systems {1}
106.~.~ Series stills

DEFINITION

Classification: 196/106

(under subclass 105) A plurality of mineral-oil vaporizers connected in series, so that the oil being distilled passes from one vaporizer to the next.

SEE OR SEARCH CLASS

159, Concentrating Evaporators,

17.1,.

202, Distillation: Apparatus,

173, for a separatory distillation system having a plurality

of stills in series. 203, Distillation: Processes, Separatory,

71, for a separatory distillation process including a series of distillation steps.

208, Mineral Oils: Processes and Products,

49, and subclass 350 for processes including plural serial stages of mineral oil conversions or distillations, respectively.