US PATENT SUBCLASS 202 / 264
.~.~ Foam control


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

81  DF  APPARATUS {4}
239  DF  .~ Elements {10}
264.~.~ Foam control


DEFINITION

Classification: 202/264

Means is associated with the still for preventing foam formation or for breaking foam already formed.

SEE OR SEARCH CLASS

96, Gas Separation: Apparatus,

155+, for degasifying means for liquid.

201, Distillation: Processes, Thermolytic,

9, for a process directed to treating a solid distilland to inhibit foaming.

203, Distillation: Processes, Separatory,

20, for a process directed to inhibiting foaming of a distilland. 516, Colloid Systems and Wetting Agents; Subcombinations Thereof; Processes of Making, Stabilizing, Breaking, or Inhibiting,

115+, for processes of or compositions for or subcombination compositions for the breaking of or inhibiting of foam colloid systems, when generically claimed or when there is no hierarchically superior provision in the USPC for the specifically claimed art.