US PATENT SUBCLASS 209 / 145
.~.~ Impetus and countercurrent

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}
145.~.~ Impetus and countercurrent

DEFINITION

Classification: 209/145

(under subclass 133) Methods and means wherein material is given movement with substantial impetus in a direction or directions opposing the flow of gaseous suspending current.

SEE OR SEARCH THIS CLASS, SUBCLASS:

148, for separations wherein material is centrifugally projected into the suspending gaseous current.