US PATENT SUBCLASS 209 / 446
.~.~.~ Reciprocating

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  .~.~ Receptacles {3}
446.~.~.~ Reciprocating {2}
447  DF  .~.~.~.~> Manual support
448  DF  .~.~.~.~> With agitators {2}

DEFINITION

Classification: 209/446

(under subclass 422) Reciprocating receptacles of substantial depth in which material mingled with liquid, accompanying the material or added, may be treated so that the heavier constituents of the material may settle as a stratum, while the lighter either form overlying strata or may be carried away by the liquid.