US PATENT SUBCLASS 209 / 177
.~.~.~.~.~.~.~ Bath

Current as of: June, 1999
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209 /   HD   CLASSIFYING, SEPARATING, AND ASSORTING SOLIDS

132  DF  FLUID SUSPENSION {2}
155  DF  .~ Liquid {5}
162  DF  .~.~ Floating {3}
172  DF  .~.~.~ Gravity liquid {3}
174  DF  .~.~.~.~ Metallic (i.e., amalgamators) {6}
175  DF  .~.~.~.~.~ Processes {3}
176  DF  .~.~.~.~.~.~ With chemical treatment {2}
177.~.~.~.~.~.~.~ Bath

DEFINITION

Classification: 209/177

(under subclass 176) Processes involving chemical treatment which are limited to amalgamation and in which the effect of the treatment is upon the mercury or its equivalent or which involve chemical treatment which promotes the action of the mercury in absorbing the substances selectively separated or prepares the mercury or equivalent for such action and has no other utility.

SEE OR SEARCH THIS CLASS, SUBCLASS:

176, 179 and 180, for other processes of chemical or electrical treatment upon the mercury employed.