US PATENT SUBCLASS 209 / 160
.~.~.~ Expanding

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}
158  DF  .~.~ Vertical current {2}
160.~.~.~ Expanding {1}
161  DF  .~.~.~.~> With agitation

DEFINITION

Classification: 209/160

(under subclass 158) Methods and means wherein vertically flowing currents which expand as they flow upwardly are employed to assort material.