Container preform with tamper evidence finish portion
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United States of America
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Feb 25, 2025
Grant Date -
Jun 22, 2023
app pub date -
Feb 13, 2023
filing date -
Feb 13, 2023
priority date (Note) -
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status (Latency Note)
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Abstract
A preform is provided for blow-molding to form a container. The preform includes a finish portion for rotatably engaging a closure to seal contents within an interior of the container. The finish portion comprises a cylindrical body that begins at an opening to the interior and extends to and includes a tamper evidence ledge. A mirror polished sealing surface inside the finish portion cooperates with a plug seal of the closure to seal the container. Threads outside the finish portion engage with similar threads inside the closure. Thread starts of the threads reduce potential damage to the threads during installation of the closure. The thread starts may include a start pitch that is greater than a thread pitch of the threads. A handling valley disposed between the threads and the tamper evidence ledge facilitates air-conveying the container along a manufacturing assembly line.
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