Screening plant

Details Screening plant Screening plant

2008-05-20

2008-05-20

Rodriguez, Joseph C (Department: 3653)

Classifying, separating, and assorting solids

Sifting

Drum sifters

C209S285000, C209S421000

Reexamination Certificate

active

07374049

ABSTRACT:
A screening plant having a main frame, a trammel drum mounted on the main frame to be rotatable about a rotational axis at a small angle to the horizontal, and having an input end and an opposite discharge end at a lower end than the input end, screening apertures provided in the wall of the drum, drive means coupled with the drum and operative to rotate the drum while screening takes place, an input hopper mounted on the main frame and arranged to supply bulk material to the input end of the drum, an inclined guide shoot which feeds material from the hopper laterally so as to enter the input end of the drum, and a cantilever type rotatable mounting assembly which rotatably mounts the input end of the drum on the main frame of the plant.

REFERENCES:
patent: 1966589 (1934-07-01), Lewis
patent: 2366222 (1945-01-01), Tocci-Guilbert
patent: 2458887 (1949-01-01), Winters
patent: 2683532 (1954-07-01), Patten
patent: 3672505 (1972-06-01), Feterl
patent: 5581916 (1996-12-01), Hirose et al.
patent: 5957302 (1999-09-01), Douglas
patent: 6843376 (2005-01-01), Dube et al.
patent: 2006/0070925 (2006-04-01), Douglas et al.
patent: 284643 (1988-10-01), None
patent: WO 92/06250 (1992-04-01), None
patent: WO 97/37777 (1997-10-01), None

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