Method and apparatuses for screening

Details Method and apparatuses for screening Method and apparatuses for screening

2007-03-21

2009-08-25

Mackey, Patrick H (Department: 3653)

Classifying, separating, and assorting solids

Sifting

Elements

C209S274000, C209S275000, C209S276000

Reexamination Certificate

active

07578394

ABSTRACT:
A screening machine includes wall members, a screen assembly, and a compression assembly. The screen assembly includes a frame with a plurality of side members and a screen supported by the frame. The compression assembly is attached to at least one wall member and forms the screen assembly into a concave shape.

REFERENCES:
patent: 4816153 (1989-03-01), Ando et al.
patent: 4846352 (1989-07-01), Bailey
patent: 5615776 (1997-04-01), Bjorklund et al.
patent: 7216768 (2007-05-01), Fisher et al.
patent: 2002/0175111 (2002-11-01), Crabbe et al.
patent: 2004/0007508 (2004-01-01), Schulte et al.
patent: 2006/0180509 (2006-08-01), Burnett et al.

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