MATERIAL SORTING APPARATUS
First Claim
1. A material sorting apparatus, comprising:
- a endless track;
a perforated screen moveable around said endless track;
means for moving the screen around the track;
means for sucking air through the screen inwardly of the track at a predetermined area of the track;
a material supply means for supplying material to be sorted, the material falling under gravity in close proximity to said predetermined area of the track, wherein laminar material is selectively sucked towards a surface of the screen, is held by suction forces in contact with the screen while being transported by the screen through and out of said predetermined area of the track, and is released from suction forces when the screen moves out of said predetermined area of the track;
a first collection area located beneath a region adjacent the predetermined area of the track into which material not transported by the screen can fall; and
a second collection area located adjacent an area of the track separate from said predetermined area to receive material transported in contact with the screen out of the predetermined area of the track.
1 Assignment
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Accused Products
Abstract
A material sorting apparatus includes a perforated screen adapted to be moved around an endless track. Devices suck air through the screen inwardly of the track in a predetermined area thereof. A material to be sorted is supplied to the apparatus such that it falls under gravity so that laminar material is selectively sucked towards the surface of the screen. This material is transported in contact with the screen while the screen is moving through and out of the predetermined area but is released from the suction forces when the screen moves out of the predetermined area. A first collection region is located beneath a region adjacent the predetermined region of the track. A second collection region is located adjacent an area of the track to receive material which has been transported in contact with the screen out of the predetermined area of the track.
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Citations
18 Claims
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1. A material sorting apparatus, comprising:
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a endless track; a perforated screen moveable around said endless track; means for moving the screen around the track; means for sucking air through the screen inwardly of the track at a predetermined area of the track; a material supply means for supplying material to be sorted, the material falling under gravity in close proximity to said predetermined area of the track, wherein laminar material is selectively sucked towards a surface of the screen, is held by suction forces in contact with the screen while being transported by the screen through and out of said predetermined area of the track, and is released from suction forces when the screen moves out of said predetermined area of the track; a first collection area located beneath a region adjacent the predetermined area of the track into which material not transported by the screen can fall; and a second collection area located adjacent an area of the track separate from said predetermined area to receive material transported in contact with the screen out of the predetermined area of the track. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification