Classifying – separating – and assorting solids – Adhesion – Coated surface or mass
Patent
1976-07-19
1978-02-21
Knowles, Allen N.
Classifying, separating, and assorting solids
Adhesion
Coated surface or mass
2091117T, B07C 5344
Patent
active
040748090
ABSTRACT:
Apparatus and methods for testing printed metallic can body members for defects by the use of light involving gravity infeed apparatus for locating can body members in separate pockets on a continuously rotating transfer wheel, seating apparatus for seating the can body members in the pockets, testing the exterior surface of the can body member for the presence of printed ink thereon, axially displaceable can body member support apparatus for axial displacement of the can body members relative to the pockets and the transfer wheel to locate a flange portion in sealed association with a resilient deflectable sealing member, application of vacuum to the bottom of the can body member to hold the can body member on the support apparatus until release of the vacuum, application of pressure to and pressurization of the sealing member and the inside of the can body member; location of the pressurized can body member in a zone of florescent light, location of the can body member relative to light detecting apparatus in the light zone to detect any light passing through the walls and through or around the flange portion of the container body member, retracting the can body member from sealed association with the sealing member, first discharging defective can body members into discharge chute apparatus by gravity after release of vacuum, and then unloading acceptable can body members into unloading chute apparatus by gravity after release of vacuum.
REFERENCES:
patent: 2919801 (1960-01-01), Pechy
patent: 3159279 (1964-12-01), Sloan et al.
patent: 3416659 (1968-12-01), Linderman et al.
patent: 3453054 (1969-07-01), Phillips
patent: 3750877 (1973-08-01), Dracho et al.
patent: 3886353 (1975-05-01), Shioya
Dugan Larry Mason
McMillin Danny Leon
Coors Container Company
Klaas Bruce G.
Knowles Allen N.
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