Punch, a semi-finished can, and a can manufactured with use of the said punch
AssigneeCanpack S.A.
InventorPrzemyslaw WEDRYCHOWICZ
Life of this patent
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Abstract
A punch for drawing beverage cans comprising a cylindrical body with a separated region (1) forming a can side wall having diameter D1, a step (2), and a region (3) forming a thick wall, characterized in that, the region (3) forming thick wall starts from the step (2), and the diameter D2 of the punch in this region (3) is variable and is smaller than the diameter D1 of the region (1) forming can's sidewall. The object of the invention is also a beverage can in the form of a semi-finished can, and a finished beverage can manufactured with use of the said punch.
Claims6
A beverage metal can in a form of a semi-finished can intended for operation of necing, wherein, the metal can has a thick wall (8) of variable thickness t22, t23 ranging from 80 to 220 μm.
A finished beverage can, wherein the can has a neck (9) having wall thickness t4, t42 and t43 in a range from 80 to 220 μm.
Dependencies are inferred from the claim text.