US PATENT SUBCLASS 209 / 26
.~.~.~ Inclined current

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

12.1  DF  PLURAL, DIVERSE SEPARATING OPERATIONS {17}
21  DF  .~ Gaseous suspension and sifting {2}
22  DF  .~.~ Coincident {4}
26.~.~.~ Inclined current {1}
27  DF  .~.~.~.~> With deposition

DEFINITION

Classification: 209/26

(under subclass 22) Methods and apparatus in which there are coincident grading suspension and sifting, an inclined current of gas, generally air, being employed to effect the suspension.

SEE OR SEARCH THIS CLASS, SUBCLASS:

250, 276, 280, 295, 312, 318, and 321, for sifters employing a gas stream for feeding material or for agitation or conveying.