US PATENT SUBCLASS 209 / 466
.~.~.~.~ Constant current

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

422  DF  STRATIFIERS {6}
*  DD  .~ With pneumatic treatment {3}
*  DD  .~.~ Movable bed {4}
*  DD  .~.~.~ Permeable {2}
466.~.~.~.~ Constant current {1}
467  DF  .~.~.~.~.~> Divergent or opposite travel

DEFINITION

Classification: 209/466

(under subclass 422) Apparatus including movable perforated or permeable supports for material, other than rotating endless belts, and means for sending constant gaseous currents through the supports and the material, so that the heaviest constituents of the material may settle as a stratum while the lighter may either form relatively displaced strata

or be removed by the gaseous currents, there being either no substantial movement of the heaviest constituents along the support or both the heaviest and the lighter moving in the same direction toward discharge.

SEE OR SEARCH THIS CLASS, SUBCLASS:

470, for endless belt type of pneumatic stratifier.