The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 07, 2010
Filed:
Aug. 13, 2007
Chiaki Miyajima, Nagano-ken, JP;
Masahide Matsuyama, Nagano-ken, JP;
Yuichi Seki, Matsumoto, JP;
Satoshi Shinada, Shiojiri, JP;
Hisashi Koike, Suwa, JP;
Chiaki Miyajima, Nagano-ken, JP;
Masahide Matsuyama, Nagano-ken, JP;
Yuichi Seki, Matsumoto, JP;
Satoshi Shinada, Shiojiri, JP;
Hisashi Koike, Suwa, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
A method of manufacturing a liquid container, the liquid container including a liquid containing chamber in which a liquid can be contained, an air communicating passage allowing the liquid containing chamber to communicate with air, a liquid supply port for supplying the liquid contained in the liquid container to an outside, a valve mechanism disposed in the liquid supply port, a liquid flow passage allowing the liquid container and the liquid supply port to communicate with each other, and a differential pressure valve which is disposed in the liquid flow passage, which is normally urged to be a closed state, and which is changed from the closed state to an opened state when a differential pressure between a side of the liquid supply port and a side of the liquid containing chamber is equal to or more than a predetermined value, the method includes: removing at least a part of the valve mechanism; inserting a jig from the liquid supply port; forcibly opening the differential pressure valve using the jig against an urging force for urging the differential pressure valve to the closed state; and injecting the liquid from the liquid supply port to the liquid containing chamber through the liquid flow passage while forcibly maintaining the opened state of the differential pressure valve.