Safety valve for pressurized fluid tanks
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United States of America Patent
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Aug 17, 2004
Grant Date -
Jan 23, 2003
app pub date -
Jul 11, 2002
filing date -
Jul 19, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The valve is intended to be opened at a predetermined temperature in order to release the pressurized fluid from the tank and its opening is triggered by melting of a meltable material. It comprises a body in the shape of a socket (10), the open end of which is exposed to the gas pressure and the bottom of which is closed except for a minuscule orifice (12). The side wall of the body (10) comprises at least one radial opening (14) and the body (10) is engaged, by its bottom, by sliding, in a cap (16) of complementary shape and is fastened thereto by means of the meltable material (18). The cap (16) comprises at least one access (20) to the atmosphere and, after melting of the meltable material (18), can be moved with respect to the body (10) until each access (20) communicates with a side opening (14) in the body (10).
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