US PATENT SUBCLASS 209 / 191
.~.~.~.~.~ With rubbing

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}
191.~.~.~.~.~ With rubbing

DEFINITION

Classification: 209/191

(under subclass 174) Apparatus and methods wherein means for attritively rubbing the particles of material are employed in conjunction with a metallic bath which floats the components of lesser specific gravity, while those of greater specific gravity remain in the bath.

(1) Note. The rubbing and subjection to the metallic bath may be coincident, or one may follow the other.

SEE OR SEARCH CLASS

241, Solid Material Comminution or Disintegration, appropriate subclasses, especially

20, and 46.01 for processes and apparatus including comminution combined with separation by liquid flotation.