Classifying – separating – and assorting solids – Sorting special items – and certain methods and apparatus for... – Condition responsive means controls separating means
Patent
1994-06-03
1995-10-31
Bollinger, David H.
Classifying, separating, and assorting solids
Sorting special items, and certain methods and apparatus for...
Condition responsive means controls separating means
209588, 209938, 250223R, 131905, B07C 500
Patent
active
054621763
ABSTRACT:
A method and apparatus for detecting foreign matter in a particulate material stream, particularly tobacco, including an optical scanner, in combination with a camera system with beam splitter and filters, and a computer to process signals from the camera to determine whether foreign matter is present. If foreign matter is detected, a diverter deviates the flow of the contaminated material onto a discharge conveyor.
REFERENCES:
patent: 3004664 (1961-10-01), Dreyfus
patent: 4300689 (1981-11-01), Franklin et al.
patent: 5190163 (1993-03-01), Anzai et al.
patent: 5335791 (1994-08-01), Eason
patent: 5339962 (1994-08-01), Sommer, Jr. et al.
Hereford, deceased Cliff E.
Malek Joseph H.
Bollinger David H.
Brown & Williamson Tobacco Corporation
Nguyen Tuan
Sherman Charles I.
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