Classifying – separating – and assorting solids – Adhesion – Coated surface or mass
Patent
1976-11-26
1978-08-08
Knowles, Allen N.
Classifying, separating, and assorting solids
Adhesion
Coated surface or mass
209564, 209577, 209588, 209643, B07C 5344
Patent
active
041051220
ABSTRACT:
Inspection is effected by clamping cans between a holder and a photosensitive device which holders and devices are disposed in opposed relationship in a plurality of sets, illuminating exterior of the cans to project light through any opening in the can to the photosensitive device, sensing such light and sending electrical signals to an electronic memory to sort good cans from leakers; the photosensitive device includes an array of directional photodarlingtons one group of which detects openings in can flanges and another group detects openings in can bodies.
REFERENCES:
patent: 3416659 (1968-12-01), Linderman et al.
patent: 3750877 (1973-08-01), Cvacho
patent: 3826923 (1974-07-01), Trimble
patent: 3991882 (1976-11-01), Fahnestock
Dye Richard
Flood John M.
Messervey Clifford H.
O'Connor Leo P.
Borden Inc.
Kap George A.
Knowles Allen N.
Maskas George P.
Mast Daniel D.
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