US PATENT SUBCLASS 209 / 424
.~.~.~.~.~ Divergent or opposite travel

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

422  DF  STRATIFIERS {6}
*  DD  .~ With liquid treatment {3}
*  DD  .~.~ Movable bed {3}
*  DD  .~.~.~ Permeable {2}
423  DF  .~.~.~.~ Constant current {1}
424.~.~.~.~.~ Divergent or opposite travel

DEFINITION

Classification: 209/424

(under subclass 423) Devices and methods in which the different strata or the stratum of the heaviest constituents and the material carried away by the liquid move away from each other in diverging or opposite directions.