System for removing plastic from recycled material

Details System for removing plastic from recycled material System for removing plastic from recycled material

2007-07-17

2007-07-17

Hess, Douglas A. (Department: 3651)

Classifying, separating, and assorting solids

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

Separating means

C209S645000, C209S308000, C198S818000, C406S113000

Reexamination Certificate

active

10992957

ABSTRACT:
A system for separating pieces of plastic bag from ground yard debris and the like, e.g., asphalt shingles. A conveyor conveys the debris material along a conveyor path and an agitator bounces the conveyor to cause the lighter plastic to reposition to the top of the material on the conveyor. A suction tube end is positioned over the debris material following agitation to draw the plastic off the top of the material. The tube end is selectively adjustable to enable discriminate suction effect to draw off a maximum amount of plastic and a minimal amount of nonplastic recyclable debris.

REFERENCES:
patent: 4186836 (1980-02-01), Wassmer et al.
patent: 4475848 (1984-10-01), Truninger
patent: 4737270 (1988-04-01), Phelps
patent: 5033251 (1991-07-01), Rodriguez
patent: 5242059 (1993-09-01), Low et al.
patent: 6375011 (2002-04-01), Flottmann et al.
patent: 6397678 (2002-06-01), Popper
patent: 6427845 (2002-08-01), Buer

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