US PATENT SUBCLASS 209 / 138
.~.~ Vertical current

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}
138.~.~ Vertical current {2}
139.1  DF  .~.~.~> With deposition {1}
140  DF  .~.~.~> Expanding {1}

DEFINITION

Classification: 209/138

(under subclass 133) Methods and means in which a vertically flowing gaseous current is employed to assort the material.

SEE OR SEARCH THIS CLASS, SUBCLASS:

12.1, 19, 20, 28, 29, 36, and 37, for gaseous suspension separation employing a vertical current combined with other type of separation.

466, through 477, for pneumatic type stratifiers.