US PATENT SUBCLASS 209 / 672
.~.~.~.~.~ Spindle or roller having axially spaced, flat-sided circumferential elements (e.g., flanges, disks, wheels, etc.) projecting therefrom


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}
660  DF  .~.~.~ Item of particular size passed through gauging passage between separate elements {9}
667  DF  .~.~.~.~ Gauging passage between rotatable elements {6}
672.~.~.~.~.~ Spindle or roller having axially spaced, flat-sided circumferential elements (e.g., flanges, disks, wheels, etc.) projecting therefrom


DEFINITION

Classification: 209/672

Spindle or roller having axially spaced, flat-sided circumferential elements (e.g., flanges, disks, wheels, etc.) projecting therefrom:

(under subclass 667) Methods and apparatus wherein at least one of said elements is a shaft or roller having flat-sided elements spaced apart axially thereon and extending circumferentially thereof.

SEE OR SEARCH THIS CLASS, SUBCLASS:

361, for flat vertical sifters which rotate about a

horizontal axis and separate bulk materials.