Filler spout with opening servo-controlled by a pilot valve
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United States of America Patent
Stats
-
Jan 20, 2009
Grant Date -
Jan 25, 2007
app pub date -
Jul 18, 2006
filing date -
Jul 19, 2005
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A filler spout comprising a tubular body having a transverse partition pierced by an opening forming a valve seat which is associated with a main valve member that is connected to a piston extending in a pilot cavity connected to an exhaust orifice and to a pilot duct having a pilot orifice provided with a controlled pilot valve member, the pilot duct opening out to a face of the piston that causes the main valve member to move towards an open position when the pilot duct is fed with a liquid under pressure.
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