US PATENT SUBCLASS 209 / 174
.~.~.~.~ Metallic (i.e., amalgamators)

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.~.~.~.~ Metallic (i.e., amalgamators) {6}
175  DF  .~.~.~.~.~> Processes {3}
*  DD  .~.~.~.~.~> Feeding and distributing {2}
191  DF  .~.~.~.~.~> With rubbing
192  DF  .~.~.~.~.~> Feeding and discharging {1}
194  DF  .~.~.~.~.~> Receptacles {3}
206  DF  .~.~.~.~.~> Riffles and traps

DEFINITION

Classification: 209/174

(under subclass 172) Methods and means wherein metallic liquid is employed to float the constituents of lesser specific gravity from those of greater specific gravity.

(1) Note. This subclass takes those cases which involve the use of particular metals or alloys of metals which do not fall into the subclasses indented thereunder.

(2) Note. In substantially all the cases of this subclass and those indented thereunder the separation is of metal from worthless material with which the metal is mixed, the metal sinking in the metallic liquid and the worthless material floating thereon, though there may be some instances in which one metal may be separated from another.

(3) Note. Owing to the impracticability of drawing a clear line between cases where there is a clear flotation of the lighter specific gravity components and those cases in which liquid metal is mixed with the material and afterwards settled out with the attached or absorbed metals, both types are included in the subclasses indented hereunder, since the settling of the liquid metal with rejection of the lighter components of the material in the supernatant layer may be considered a species of flotation of such lighter components.

SEE OR SEARCH CLASS

266, Metallurgical Apparatus,

227+, for apparatus for treating molten material to separate the same into different constituents e.g., slag from metal.