Method and device for processing outer shape of can shell
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United States of America Patent
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Mar 13, 2007
Grant Date -
Aug 25, 2005
app pub date -
May 9, 2003
filing date -
May 10, 2002
priority date (Note) -
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status (Latency Note)
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Abstract
A pressing member 44 is pressed from the outside against a peripheral wall of a can shell 4 whose interior is maintained at a predetermined pressure by gas, to form a recess-deformed portion 56 having a predetermined shape on the peripheral wall of the can shell 4. Thereby, three-dimensional patterns can be formed by recess-deforming desired portions of the can shell 4 while preventing the strength of the can shell 4 from being deteriorated and preventing the inner surface of the can shell 4 from being scratched or the coating from being damaged, by which outer shape processing with high design performance can be easily applied to the can shell 4 at a low cost.
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