Metallic container closure having internal pressure release function
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United States of America Patent
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Sep 16, 2014
Grant Date -
Mar 29, 2012
app pub date -
Dec 8, 2011
filing date -
Aug 9, 2005
priority date (Note) -
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status (Latency Note)
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Abstract
A metallic container closure including a shell of a thin metal sheet having a circular top panel wall (7) and a skirt wall (9), and a synthetic resin liner arranged in the shell, the skirt wall (9) having a thread-forming region and an annular groove (17) positioned at an upper end portion of the thread-forming region, wherein an internal pressure release line A extending in the circumferential direction is arranged in the skirt wall (9) at a portion over the annular groove (17), and annular bead (30) is arranged so as to pass through between the internal pressure release line A and the annular groove (17).
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