Process and apparatus for forming tearably detachable...

Details Process and apparatus for forming tearably detachable... Process and apparatus for forming tearably detachable...

B - Operations, Transporting

21

D

113/27

B21D 51/00 (2006.01) B21D 51/38 (2006.01)

Patent

CA 1040012

Abstract of the Disclosure The periphery of a tearably detachable portion of a sheet such as the lid of a pop-top can is weakened by cutting a groove around the periphery. The portion is then recessed by a die set, the periphery of the portion being further weakened by plastic deformation. - 2 -

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