Over pressure release valve
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United States of America Patent
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Dec 30, 2014
Grant Date -
May 30, 2013
app pub date -
May 5, 2011
filing date -
May 5, 2010
priority date (Note) -
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Abstract
A self chilling beverage container including a heat exchange unit having a pressurized medium therein secured internally thereof and including an over-pressure relief valve. The valve includes a hollow housing within which there is first and second valves. The first valve is operable to inject and release the pressurized medium into the container. The second valve is normally closed and is continuously exposed to the pressurized medium and in response to the pressure thereof reaching a predetermined level opens to exhaust the pressurized medium to the atmosphere to relieve the excess pressure.
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