Invention Grant
US08341995B2 Method for making can bodies having axial ribs and step shoulder bottoms 有权
用于制造具有轴向肋和台肩部底部的罐体的方法

Method for making can bodies having axial ribs and step shoulder bottoms
Abstract:
A method for forming at least one rib and a step shoulder bottom of a can body in a single drawing operation from a redrawn cup or preform which has a closed end with an inwardly tapering annular periphery that includes sufficient material to enable formation of the step shoulder bottom without having the at least one rib drawn into the step shoulder bottom.
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