Grooved beverage can lid

Details Grooved beverage can lid Grooved beverage can lid

1980-10-03

1982-06-08

Hall, George T.

Receptacles

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

Beverage receptacle

220266, B65D 634, B65D 804, B65D 4102

Patent

active

043335829

ABSTRACT:
The pre-fabricated pouring outlet in a lid for cans containing carbonated drinks lies basically at an angle of 0.degree. or 90.degree. to the rolling direction of the sheet from which the lid is made. The surface of the lid features at least one ring-shaped stiffening groove which points towards the can interior, is concentric with the periphery of the lid and is interrupted in the region of the pouring outlet. The diameter of the groove is 65-80% of that of the nominal diameter of the can.
The stiffening groove raises the resistance of the lid towards pressure from inside the can by about 10%. This means that, when manufacturing a lid which has to withstand a specific pressure from inside the can, and using the same material, the thickness of the lid can be reduced to save material.

REFERENCES:
patent: 3432067 (1969-03-01), Khoury
patent: 3554400 (1971-01-01), Bozek

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