Optical wood-bark segregator

Details Optical wood-bark segregator Optical wood-bark segregator

1980-01-04

1981-05-12

Rolla, Joseph J.

Classifying, separating, and assorting solids

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

Traveling item turned to predetermined position

209588, 209644, 250223R, 356432, B07C 5342

Patent

active

042666759

ABSTRACT:
A process of separating wood chips according to their bark content by orienting them between a light source and light detector, measuring the amount of light transmitted through each chip, and separating the bark-laden chips from the bark-free chips on the basis of their light transmittance. An apparatus for separating wood chips according to their bark content, comprising a light source, a light detector, means for properly orienting the wood chips between the light source and detector, and means for differentiating between bark-laden chips and bark-free chips on the basis of their light transmittance.

REFERENCES:
patent: 2351702 (1944-06-01), Peterson
patent: 3496366 (1970-02-01), Hunziker et al.
patent: 3770112 (1973-11-01), Asfour
patent: 3987660 (1976-10-01), Pelanne
patent: 4051952 (1977-10-01), Hauptmann et al.

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