Container end closure having improved chuck wall with...

Receptacles – End wall structure – Joint or seam between sidewall and end wall

Reexamination Certificate

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C220S619000, C220S258200, C220S269000, C220S906000

Reexamination Certificate

active

07938290

ABSTRACT:
The present invention describes a beverage can end which utilizes less material and has an improved internal buckle strength based on the geometric configuration of a chuck wall, inner panel wall and central panel, and which, in one embodiment utilizes an arcuate shaped chuck wall with a radius of curvature between about 0.150 inches and 0.250 inches with at least one transition zone positioned between an upper and lower end of the chuck wall.

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