Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
January 6, 2009
Patent Application Number
11313822
Date Filed
December 22, 2005
Patent Primary Examiner
Patent abstract
The present invention provides a durable liquid housing container and a durable liquid supply apparatus which use a gas-liquid separation membrane. Thus, a gas-liquid separation membrane (2) located at an air vent in a liquid housing container (1) includes a fibril portion (2A) composed of fibrous portions and an annular node portion (2B) which bundles the ends of fibrous portions of the fibril portion (2A) and which is closed so as to surround the fibril portion (2A).
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