Easily opened metal lid for a container

Details Easily opened metal lid for a container Easily opened metal lid for a container

1990-10-26

1992-09-15

Marcus, Stephen

Receptacles

Closures

With closure opening arrangements for means

220270, B65D 1740

Patent

active

051470586

ABSTRACT:
The lid for a sealed container openable along a line of reduced strength merely by exerting a pull is of the type comprising a substantially right-angles fold (4) constituting a line of reduced strength which is formed by a stamping operation on a sheet of steel having a thickness less than or equal to 0.16 mm. The line of reduced thickness permits the complete or partial opening of the container. The lid is preferably composed of 0.10 to 0.16 mm thick steel and, at the fold (4), the inside radius of curvature of the lid is 10 to 50 .mu.m and the outside radius of curvature of the lid is 100 to 200 .mu.m. The invention is applicable to sealed metal containers, such as food beverage cans or trays for pre-cooked dishes.

REFERENCES:
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patent: 4258859 (1981-03-01), Westphal
patent: 4753365 (1988-06-01), Seppala
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