Closure with flexible diaphragm
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United States of America Patent
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Apr 30, 2013
Grant Date -
Oct 8, 2009
app pub date -
Apr 4, 2008
filing date -
Apr 4, 2008
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A closure with a flexible diaphragm that equalizes the internal pressure of a container to the external pressure. The closure may include an inner member having a generally cylindrical wall. The cylindrical wall may include internal threads capable of engaging with external threads of the container. The closure may also include an outer member including a generally circular cap body and an annular ring extending downward from the edges of the cap body. The annular ring shrouds at least a portion of the cylindrical wall. A flexible diaphragm may be operatively attached to the top of the cylindrical wall and spaced apart from the cap body. The flexible diaphragm deflects in response to the internal pressure of the container.
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