US PATENT SUBCLASS 209 / 427
.~.~.~.~.~ Parallel 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}
425  DF  .~.~.~.~ Pulsating current {2}
427.~.~.~.~.~ Parallel travel

DEFINITION

Classification: 209/427

(under subclass 425) Devices and methods in which a pulsating or interrupted flow of liquid through a permeable or perforated support and material thereon to cause the components of the material to form overlying strata, and these strata as formed are caused to travel together to a place of position where they are separately discharged.