Method and apparatus for classifying fine balls and method...

Details Method and apparatus for classifying fine balls and method... Method and apparatus for classifying fine balls and method...

2006-03-28

2006-03-28

Walsh, Donald P. (Department: 3653)

Classifying, separating, and assorting solids

Sifting

Elements

C209S284000

Reexamination Certificate

active

07017754

ABSTRACT:
An apparatus for classifying fine balls having diameters of 1 mm or less into those having predetermined diameter ranges, comprising a feeder for supplying fine balls, at least one rotatable cylindrical sieve constituted by a plate with a thickness of 200 μm or less having circular holes and having a center axis inclined relative to a horizontal plane, and a container for receiving fine balls classified by subjecting the fine balls to falling from the cylindrical sieve, the fine balls being supplied from the feeder to an inlet of the rotating cylindrical sieve at its upper end, fine balls that have passed through the circular holes of the cylindrical sieve being subjected to falling to be recovered by the container, and fine balls that have not passed through the circular holes being withdrawn from an exit of the cylindrical sieve at its lower end.

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patent: 06-254497 (1994-09-01), None
patent: 2002-505954 (2002-02-01), None

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