US PATENT SUBCLASS 209 / 593
.~.~.~ Detecting movement of item support with electrical sensor

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}
552  DF  .~ Condition responsive means controls separating means {13}
592  DF  .~.~ Responsive to weight of item {2}
593.~.~.~ Detecting movement of item support with electrical sensor {2}
594  DF  .~.~.~.~> Photodetector
595  DF  .~.~.~.~> Switch

DEFINITION

Classification: 209/593

Detecting movement of item support with electrical sensor:

(under subclass 592) Methods and apparatus including an electrical sensor which detects movement of a support under the weight of an item.