Classifying – separating – and assorting solids – Sorting special items – and certain methods and apparatus for... – Signalling – indicating – or display means
Patent
1985-02-25
1987-04-14
Millin, V.
Classifying, separating, and assorting solids
Sorting special items, and certain methods and apparatus for...
Signalling, indicating, or display means
209581, 209587, 209639, 131108, 131110, 131905, 131290, 131 96, B07C 5342, A24C 539, A24C 536
Patent
active
046571442
ABSTRACT:
A method and apparatus are provided for detecting and removing foreign material which may be found in a stream of particulate matter, such as tobacco. The tobacco is allowed to fall in a cascade past an optical detector. The turbulence of the falling motion brings a large proportion of the particles in the cascade into the field of view of the detector. When foreign material is detected, a signal is generated to activate a fluid blast directed at the portion of the cascade in which the foreign material is located.
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Alonso Hector
Martin Peter
Rowe Norman R.
Southard Robert S.
Wyatt, Jr. Avis N.
Ingerman Jeffrey H.
Macey H.
Millin V.
Philip Morris Incorporated
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