Optical sorting apparatus

Details Optical sorting apparatus Optical sorting apparatus

1986-10-28

1989-09-05

Reeves, Robert B.

Classifying, separating, and assorting solids

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

Condition responsive means controls separating means

209585, 209587, 250226, 356425, 356407, B07C 5342

Patent

active

048630411

ABSTRACT:
Optical sorting apparatus for sorting individual objects such as beans, nuts, seeds, or other agricultural products is disclosed. The sorting apparatus according to the present invention detects light reflected from objects and compares the detected light to light reflected from a dynamically variable background. The background is located behind the stream of objects flowing past the light detecting portion of the sorting apparatus. The apparatus is further characterized in that the background is dynamically variable to provide an adjustable reference for the light detecting apparatus. A method for sorting objects by the unique optical apparatus according to the present invention is also disclosed.

REFERENCES:
patent: 3709612 (1973-01-01), Clemens
patent: 3993899 (1976-11-01), Chapman
patent: 4131367 (1978-12-01), French et al.
patent: 4186838 (1980-02-01), Levitt et al.
patent: 4454029 (1984-06-01), Codding
patent: 4513868 (1985-04-01), Culling et al.
patent: 4699273 (1987-10-01), Suggi-Liverani

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