US PATENT SUBCLASS 209 / 178
.~.~.~.~.~.~.~ Ore

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}
178.~.~.~.~.~.~.~ Ore

DEFINITION

Classification: 209/178

(under subclass 176) Processes involving chemical treatment other than chemical dissolution or formation of compounds of the metal, limited to amalgamation in which the effect of the treatment is upon the material to be separated or processes involving chemical treatment, other than chemical dissolution or formation of compounds of the metal, of the material to be separated to prepare it for separation by mercury or its equivalent and having no other utility.

SEE OR SEARCH THIS CLASS, SUBCLASS:

176, 179 and 181, for other processes of chemical or electrical treatment of the material to be separated.

SEE OR SEARCH CLASS

75, Specialized Metallurgical Processes, Compositions for Use Therein, Consolidated Metal Powder Compositions, and Loose Metal Particulate Mixtures, for metallurgical treatment of ores.