Multifunctional safety valve device with incorporated proportional pressure regulator
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United States of America Patent
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Oct 8, 2013
Grant Date -
Dec 2, 2010
app pub date -
Oct 22, 2007
filing date -
Oct 22, 2007
priority date (Note) -
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Abstract
Multifunctional safety valve device with proportional pressure regulator, for line feeding aeriform fluid to a user, including a body defining a fluid or gas conduit connected to a gas feed line and a gas delivering line. The conduit has first and second passages intercepted by respective first and second valving elements. The second element downstream of the first for gas pressure regulating and modulating. The valving elements operated by electromagnetic actuators and urged closed at least by a spring. The second element cooperating with a membrane subjected to gas pressure to urge the second element closed. The membrane has, subjected to gas pressure, a surface larger than that of the second element subjected to the same pressure, to maintain the second element closed. The second element presenting, downstream of the second passage, a portion with a flexible rim arranged to seal the second passage when intercepted by the second element.
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