Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
August 2, 2011
Patent Application Number
11727423
Date Filed
March 26, 2007
Patent Primary Examiner
Patent abstract
A valve core of an ink cartridge includes an elastic valve sheet having an inner portion and an outer portion. The outer portion extends outwards from the inner portion and protrudes towards an upstream side of the valve core. The outer portion is adapted to sealingly engage and disengage with a valve seat in which the valve core is mounted.
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