Excessive pressure release valve and release valve unit having the release valve
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United States of America Patent
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May 21, 2013
Grant Date -
Feb 11, 2010
app pub date -
Feb 14, 2008
filing date -
Mar 9, 2007
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Provided is a small, simple-structured, homogeneous and mass-producible excessive pressure release valve which works even at a relatively low excessive pressure to surely and safely release the pressure to the external world. The excessive pressure release valve has an elastic rubber plate and a reversibly openable slit that passes through the upper and the lower surfaces and release the pressure to the external world when the internal excessive pressure stressing on the lower side surface, pushes and opens the slit toward upper surface side. The elastic rubber plate is made of silicone rubber containing 1-20% by mass of silicone oil.
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