US PATENT SUBCLASS 209 / 23
.~.~.~ With deposition

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}
23.~.~.~ With deposition

DEFINITION

Classification: 209/23

(under subclass 22) Methods and apparatus in which there is coincident sifting and gaseous suspension, such as is defined in connection with subclass 22, and also a collection of the material that has been taken up by the gas.

(1) Note. This collection may be graded or not and may include part or all of the material suspended.

SEE OR SEARCH THIS CLASS, SUBCLASS:

19, and 20, for other combined separations including gaseous suspension.