Selective coating characteristic tinplated steel cans

Details Selective coating characteristic tinplated steel cans Selective coating characteristic tinplated steel cans

1975-09-22

1977-10-18

Marcus, Stephen

Receptacles

Receptacle side wall made of two or more layers of material...

Beverage receptacle

426126, 426131, B65D 2302

Patent

active

040542270

ABSTRACT:
By predetermined selection of tin coating weight in the manufacture of electrolytically tinplated continuous steel strip, cup formation of sheet metal blanks cut from such tinplated flat rolled steel with the selected tin coating weight disposed internally, selective reduction of sidewall gage and coating weight, maintenance of tin coating weight on the interior surface of the bottom wall, and selective organic coating, the present invention enables production of special container packs, previously limited to three-piece containers, from unitary seamless can bodies. Selected tin coating weight on the interior surface of the bottom wall of the can body is maintained throughout the manufacturing process and this surface is exposed to container contents. The sidewall interior surface of the can body is protected from exposure to container contents by an organic coating.

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patent: 3693828 (1972-09-01), Kneusel et al.
patent: 3760751 (1973-09-01), Dunn et al.

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