Sorting apparatus

Classifying – separating – and assorting solids – Sorting special items – and certain methods and apparatus for... – Condition responsive means controls separating means

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Details

209587, 209639, B07C 5342

Patent

active

058487069

ABSTRACT:
In an apparatus for sorting material into desired and undesired pieces or portions according to their optical characteristics, comprising a background, and a viewing means for viewing the material against the background; a method for removing debris from the background is proposed which comprises providing a jet of air or water which is moved relative to and across the background, and directed towards the background so as to remove debris and thereby clean the background. The jet is positioned out of the field of view of the viewing means so that debris removal can take place without interruption of the sorting process. A magnetic type air-cylinder, in which exhaust gas is fed back as the debris-removing air-jet, is preferably used.

REFERENCES:
patent: 4699274 (1987-10-01), Saika
patent: 4799596 (1989-01-01), Mallant
patent: 5197159 (1993-03-01), Truong
patent: 5271505 (1993-12-01), Low
patent: 5631460 (1997-05-01), Gray et al.

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