Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
October 7, 2008
Patent Application Number
10568326
Date Filed
August 13, 2004
Patent Primary Examiner
Patent abstract
The present invention regards an underpressure-activated valve mechanism for controlled dispensing of fluids, including liquid food articles, from a receptacle. When the user applies sufficient suction force (P2) across a pressure comparative diaphragm zone a valve opening force is applied to a valve area that has a force connection with the diaphragm zone. When the suction force ceases the valve area closes and remains closed, even in the event of overpressure (P3) in the receptacle.
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