Tamper-evident opening device, screw cap for use in such an opening device and method of forming such an opening device
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United States of America Patent
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Sep 4, 2012
Grant Date -
Dec 17, 2009
app pub date -
Jun 28, 2007
filing date -
Jun 30, 2006
priority date (Note) -
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status (Latency Note)
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Abstract
An opening device for a packaging container comprises a neck portion and a screw cap. The opening device comprises a wall of the first part of the screw cap being with a weakening extending in a circumferential direction of the first part and a recess extending in a longitudinal center axis direction of the first part. The recess is arranged to receive a projection of the neck portion, which projection is directly injection-molded in the recess. A tamper flap of the first part, which tamper flap is defined by the weakening and the recess, is automatically deformable in connection with a first time opening of the packaging container by cap rotation.
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