US PATENT SUBCLASS 209 / 428
.~.~.~ Belt

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}
428.~.~.~ Belt {3}
429  DF  .~.~.~.~> Divergent travel
430  DF  .~.~.~.~> Opposite travel
431  DF  .~.~.~.~> Reciprocating support {2}

DEFINITION

Classification: 209/428

(under subclass 422) Devices and methods wherein material having constituents of different masses is delivered with liquid accompanying said material or added thereto on the belt to a rotating endless belt on which the heaviest constituents settle as a stratum and the lighter either settle as a stratum or are carried away by the liquid.

(1) Note. The subclass receives such processes and apparatus as are not classifiable in the indented subclasses.

SEE OR SEARCH CLASS

428, Stock Material or Miscellaneous Articles, appropriate subclasses for a stock material product in the form of a single or plural layer web or sheet which is not specifically

provided for in any other class.

474, Endless Belt Power Transmission Systems or Components, particularly

202+, for a positive drive belt; and subclasses 237+ for a friction drive belt.