Variable-aperture screen

Details Variable-aperture screen Variable-aperture screen

1989-02-06

1991-10-29

Huppert, Michael S.

Classifying, separating, and assorting solids

Sorting special items, and certain methods and apparatus for...

Separating means

74397, 74521, 209672, B07B 1304

Patent

active

050608061

ABSTRACT:
Apparatus for separating material into first and second portions according to size including a plurality of shafts, a plurality of spaced disks radiating outwardly from each of the shafts to define apertures and linkage interconnecting the shafts for moving the shafts toward or away from one another to vary the size of the apertures while the apparatus is performing the separating function.

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patent: 4901864 (1990-02-01), Daugherty

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