Filling valve having a liquid chamber, a gas chamber and a medium chamber, and filling machine comprising the same
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United States of America Patent
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Feb 7, 2012
Grant Date -
Apr 23, 2009
app pub date -
Jul 28, 2005
filing date -
Jul 28, 2005
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A filling valve (12) including: a hollow housing (21); a moving valve assembly (24) slidingly mounted in the housing (21), the moving valve assembly (24) and the hollow housing (21) together defining a liquid chamber (30) and a gas chamber (32); a liquid inlet (46) for putting the liquid chamber (30) into communication with a liquid supply pipe (14); a gas inlet (47) for putting the gas chamber (32) into communication with a gas supply pipe (17); wherein the hollow housing (21) and the moving valve assembly (24) together define a medium chamber the (33) located between the liquid chamber (30) and the gas chamber (32), and wherein the filling valve (12) further comprises: a first diaphragm (35) linking the valve assembly (24) to the housing (21) between the liquid chamber (30) and the medium chamber (33), and a second diaphragm (36) linking the valve assembly (24) to the housing (21) between the gas chamber (32) and the medium chamber (33).
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