US PATENT SUBCLASS 209 / 137
.~.~.~ With deposition

Current as of: June, 1999
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209 /   HD   CLASSIFYING, SEPARATING, AND ASSORTING SOLIDS

132  DF  FLUID SUSPENSION {2}
133  DF  .~ Gaseous {7}
136  DF  .~.~ Inclined current {1}
137.~.~.~ With deposition

DEFINITION

Classification: 209/137

(under subclass 136) Methods and means in which an inclined gaseous current is employed to assort the material, and provision is made for the collection of the material suspended in whole or in part and as one or more grades.