B - Operations – Transporting – 07 – C
Patent
B - Operations, Transporting
07
C
341/57
B07C 5/342 (2006.01)
Patent
CA 1130892
ABSTRACT OF THE DISCLOSURE Optical sorting apparatus wherein during sorting, articles are directed to free fall through an illuminated inspection chamber. A light reflecting background posi- tioned in the chamber is adjustable to form a variable reference standard of reflectivity. A sensor positioned to receive light from the background establishes a reference level and also receives reflected light from objects passing through the chamber. A change in detected light level from the reference level is indicative of a property of an article to be sorted for selectively effecting sortation of the article.
289893
Gillespie Robert M.
Ricks John R.
Borden Ladner Gervais Llp
Cypro Corporation
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