Low clearance dual-screen particle sorter

Details Low clearance dual-screen particle sorter Low clearance dual-screen particle sorter

2005-01-04

2005-01-04

Walsh, Donald P. (Department: 3653)

Classifying, separating, and assorting solids

Sifting

Conveying

C209S240000, C209S263000

Reexamination Certificate

active

06837380

ABSTRACT:
An apparatus for sorting particles of a material such as concrete. The apparatus includes a frame and a drive assembly attached to the frame to induce gyroscopic vibratory motion of the frame in a selected rotational direction. Adjacent first and second inclined screens are affixed to the frame. The screens slope downwardly away from an intermediate ridge at different, respective first and second angles. Material dropped onto the intermediate ridge separates into a first stream which passes along the first inclined screen and a second stream which passes along the second inclined screen. The first and second angles are selected in relation to the vibratory motion of the frame so that the first and second streams each move at substantially the same velocity. A diverter member at the intermediate ridge aids in the transition of material flow along the respective screens.

REFERENCES:
patent: 1052946 (1913-02-01), Otis
patent: 1501047 (1924-07-01), Vincent Hall
patent: 4155840 (1979-05-01), Gauld et al.
patent: 4576713 (1986-03-01), Melin
patent: 4906356 (1990-03-01), Musschoot
patent: 5100539 (1992-03-01), Tsutsumi

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