Air release valve
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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May 14, 2013
Grant Date -
May 14, 2009
app pub date -
Jan 12, 2007
filing date -
Jan 12, 2006
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A valve assembly is provided that is suitable for use as an air release valve. The valve mechanism is actuated by liquid forced through an orifice by a diaphragm under pressure from the main discharge and is less prone to valve chatter under varying pressure conditions. The use of an externally adjustable orifice and/or regulator allows the valve assembly to operate satisfactorily in a wide range of pressures. The mode of operation of the valve mechanism is externally visible.
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