US PATENT SUBCLASS 209 / 682
.~.~.~.~ Aperture in chute or trough


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}
606  DF  .~ Separating means {33}
659  DF  .~.~ Sorting items by size {3}
680  DF  .~.~.~ Item of particular size passed through gauging aperture in wall (e.g., perforated panel, etc.) {3}
682.~.~.~.~ Aperture in chute or trough


DEFINITION

Classification: 209/682

Aperture in chute or trough:

(under subclass 680) Methods and apparatus wherein said aperture is in a chute or trough.