Closure with anti-backoff feature
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 8, 1994
Grant Date -
N/A
app pub date -
May 13, 1993
filing date -
May 13, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A backoff resistant closure for use with a container having a neck portion with container threads integrally formed thereon, the container threads having an uppermost portion. At least one protuberance is integrally formed on the inner surface of the annular skirt of the closure which projects inwardly. The protuberance is spaced from the uppermost segment of the closure threading and positioned between the uppermost segment of the closure threading and the inner face of the top portion of the closure. The protuberance is configured to abut and provide a frictional retaining force against the uppermost portion of the container threads. The protuberance will also retain a closure liner within the closure.
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