Classifying – separating – and assorting solids – Sorting special items – and certain methods and apparatus for... – Condition responsive means controls separating means
Patent
1976-07-22
1978-08-08
Reeves, Robert B.
Classifying, separating, and assorting solids
Sorting special items, and certain methods and apparatus for...
Condition responsive means controls separating means
209580, 250223R, 250226, 356178, B07C 5342
Patent
active
041051238
ABSTRACT:
A circuit for detecting the color of fruit on a plurality of conveyor paths by measuring the light reflected from the surface of the fruit at a viewing station at each path. The circuitry operates to develop a pair of signals at each of the conveyor paths which signals are provided by measurements of the amount of light reflected from the fruit within two distinct bands of wavelengths of light. These signals are routed, one pair at a time, through a pair of amplifiers and a pair of voltage comparators to develop appropriate discharge signals for each of the conveyor paths. A sequencer controls a pair of switching circuits which direct the signals, one at a time, to the amplifiers. The sequencer also directs any signals from the comparators to driver circuits which provide power to divert cull fruit from each conveyor path.
REFERENCES:
patent: 3393800 (1968-07-01), Durand
patent: 3619061 (1971-11-01), Mitchell
patent: 3750883 (1973-08-01), Irving et al.
patent: 3980181 (1976-09-01), Hoover et al.
Chamberlin Donald W.
Irving Donald W.
FMC Corporation
Kelly R. S.
Reeves Robert B.
Rolla Joseph J.
Tripp C. E.
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