US PATENT SUBCLASS 209 / 437
.~.~.~.~ 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  .~.~ Movable bed {3}
*  DD  .~.~.~ Chutes and tables {4}
437.~.~.~.~ Reciprocating {5}
438  DF  .~.~.~.~.~> Annular {1}
440  DF  .~.~.~.~.~> With agitators
441  DF  .~.~.~.~.~> Divergent travel
442  DF  .~.~.~.~.~> Opposite travel
443  DF  .~.~.~.~.~> Parallel travel

DEFINITION

Classification: 209/437

(under subclass 422) Tables or chutes having reciprocating motion on which material having constituents differing in mass is treated with accompanying or added liquid, the heaviest constituents settling as a stratum and the lighter either forming an overlying stratum or being carried away by the liquid.

(1) Note. This subclass receives such structures as are not classifiable in the indented subclasses, generally devices of the kind defined in which there is no definite travel of both the heaviest and the lighter along the chute or table surface, the heavier being generally retained or discharged through the bottom in proximity to the region of settlement.