Composite closure with enhanced sealing
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United States of America Patent
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N/A
Issued Date -
Aug 12, 2004
app pub date -
Feb 10, 2003
filing date -
Feb 10, 2003
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A composite closure includes a plastic outer closure cap, and an inner sealing liner positioned adjacent to an inside surface of a top wall portion of the outer cap. In order to enhance sealing integrity with an associated container, the liner is configured to include inward and outwardly facing sealing surfaces, with the provision of an annular sealing bead providing a top/side seal with an associated container, and an annular sealing plug fitting within the mouth of an associated container for providing an inside seal. The closure construction has been found to maintain sealing integrity with an associated container when the closure and container package is subjected to relatively high temperatures.
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