Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
October 19, 2010
Patent Application Number
11335821
Date Filed
January 20, 2006
Patent Citations Received
Patent Primary Examiner
Patent abstract
These disadvantages of previously known devices, the present invention provides a vacuum released valve which closes an opening into a reservoir to passage therethrough until a sufficient vacuum is created with the reservoir as on initial dispensing of fluid from the reservoir. Furthermore a cap is preferably adapted to assume an inherent shape. The inherent shape is a shape such that when in the closed position; the cap will have an inherent bias to urge the female annular seat downwardly onto the male seat to form a seal and when deflected under vacuum conditions, to assume the open position; the inherent bias of the cap, on release of the vacuum, will cause the cap to reassume the position.
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