US PATENT SUBCLASS 209 / 548
.~.~ Operation of apparatus stopped

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

509  DF  SORTING SPECIAL ITEMS, AND CERTAIN METHODS AND APPARATUS (E.G., POCKET TYPE AND LIGHT RESPONSIVE SORTING, ETC.) FOR SORTING ANY ITEMS {11}
546  DF  .~ Signalling, indicating, or display means {5}
548.~.~ Operation of apparatus stopped

DEFINITION

Classification: 209/548

Operation of apparatus stopped:

(under subclass 546) Methods and apparatus wherein the operation of a separating means stops if an abnormal condition exists in the working of said means or in an item sorted thereby.