Diaphragm valve for compressed or liquefied gases
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United States of America Patent
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Feb 17, 2009
Grant Date -
Jun 14, 2007
app pub date -
Mar 2, 2006
filing date -
Dec 13, 2005
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A diaphragm valve for compressed or liquefied gases, comprising a valve body which forms an inlet which can be associated with a pressurized gas cylinder and forms a gas outlet port. A closure port is provided between the inlet and the outlet port, and a gasket acts on the closure port and is supported by a flow control element, which engages the internal face of a diaphragm, on the outer face whereof there acts a pusher piston, which can be actuated by means of an external knob. Between the diaphragm and the pusher piston, at least one metallic disk being arranged which is not retained at its edges.
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