Sorting apparatus

Details Sorting apparatus Sorting apparatus

1976-04-30

1978-02-21

Reeves, Robert B.

Classifying, separating, and assorting solids

Adhesion

Coated surface or mass

209 74R, 2091116, 2091117R, 239592, 250237R, 356173, B07C 5342

Patent

active

040748081

ABSTRACT:
Optical sorting apparatus wherein during sorting, articles are directed to free fall through an illuminated inspection chamber. A light reflecting background positioned 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.

REFERENCES:
patent: 2803754 (1957-08-01), Cox
patent: 3066797 (1962-12-01), Fraenkel
patent: 3382975 (1968-05-01), Hoover
patent: 3735143 (1973-05-01), Langford
patent: 3738484 (1973-06-01), Hoover et al.
patent: 3936189 (1976-02-01), DeRemigis
patent: 3939983 (1976-02-01), Asfour
patent: 3945915 (1976-03-01), Wilson

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