US PATENT SUBCLASS 209 / 496
.~.~.~.~ Automatic control

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

422  DF  STRATIFIERS {6}
484  DF  .~ Elements {9}
490  DF  .~.~ Discharging {4}
494  DF  .~.~.~ Exits {2}
496.~.~.~.~ Automatic control

DEFINITION

Classification: 209/496

(under subclass 494) Automatically-controlled devices for discharging material through exits from stratifiers, the control or variation of the discharge being automatically accomplished by the progress of the stratification, generally by accumulation of bulk or weight of a given stratum.