US PATENT SUBCLASS 209 / 172
.~.~.~ Gravity liquid

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.~.~.~ Gravity liquid {3}
172.5  DF  .~.~.~.~> Suspension
173  DF  .~.~.~.~> Water or aqueous solution
174  DF  .~.~.~.~> Metallic (i.e., amalgamators) {6}

DEFINITION

Classification: 209/172

(under subclass 162) Methods and means wherein material to be separated is delivered to or mixed with a liquid or mixture of liquids having a specific gravity greater than that of some constituents and less than that of other constituents, the constituents of lesser specific gravity than the liquid floating thereon, while those of greater specific gravity sink or remain suspended in the liquid.

(1) Note. This subclass takes such cases as do not fall within the subclasses indented thereunder.