Classifying – separating – and assorting solids – Sorting special items – and certain methods and apparatus for... – Condition responsive means controls separating means
Patent
1992-08-24
1993-12-21
Olszewski, Robert P.
Classifying, separating, and assorting solids
Sorting special items, and certain methods and apparatus for...
Condition responsive means controls separating means
209577, 15304, B07C 500
Patent
active
052715051
ABSTRACT:
A sorting machine comprising a transparent tube (16); a material supply member (15) from which material, which is to be sorted into desired and undesired portions, may pass through the transparent tube (16); a light-detector (20) disposed externally of the transparent tube (16) for receiving light from material passing through the latter; a discriminator (21), controlled by the light-detector (20), for discriminating between the desired and undesired portions; a separator (22), controlled by the discriminator (21), for separating the material which has been passed through the transparent tube (16) into the desired and undesired portions; a cleaning member (32); and a movement effecting device (36) for moving the cleaning member (32) against the wall of the transparent tube (16) characterized in that the cleaning member (16) forms part of a cleaning-calibration member (31) which is used in the calibration of the discriminator (21); and there is an actuator (30) operable so that each one of the material supply member (15) and the cleaning-calibration member (31) is at times disposed in an operative position while the other member is in an inoperative position.
REFERENCES:
patent: 4340850 (1990-07-01), Satake
patent: 4371081 (1983-02-01), Satake
patent: 5197159 (1993-03-01), Truong
Noland Kenneth
Olszewski Robert P.
Sortex Limited
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