Source: https://patents.justia.com/patent/7967428
Timestamp: 2019-06-26 06:11:58
Document Index: 350027117

Matched Legal Cases: ['art 28', 'art 24', 'art 26', 'art 28', 'art 24', 'art 28', 'art 11', 'art 28']

US Patent for Method of manufacturing a liquid container including a check valve and bypass flowing passage, and liquid container including said check valve and bypass flowing passage Patent (Patent # 7,967,428 issued June 28, 2011) - Justia Patents Search
Justia Patents CartridgeUS Patent for Method of manufacturing a liquid container including a check valve and bypass flowing passage, and liquid container including said check valve and bypass flowing passage Patent (Patent # 7,967,428)
Oct 2, 2007 - Seiko Epson Corporation
The cylindrical part 28 is generally formed in the shape of a cylinder. In these fitting part 24, welding part 26, and cylindrical part 28, from the fitting part 24 toward the cylindrical part 28, a first communication hole 36, a second communication hole 38, and a third communication hole 40 penetrate as liquid flowing passages. The ink contained in the bag part 11 is taken out through the first communication hole 36, the second communication hole 38, and the third communication hole 40. The first communication hole 36 communicates with the bypass flowing passage 32. The second communication hole 38 has larger diameter than the first communication hole, and comprises a center hole 38a and plural communication grooves 38b formed in the center hole 38a. The center hole 38a is so formed that its section is generally circular. The communication grooves 38b are recessed on the inner surface of the center hole 38a in the axial direction. Herein, the communication grooves 38b are formed at two portions on the inner surface of the center hole 38a. The third communication hole 40 is formed in the cylindrical part 28.
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1 380 428 January 2004 EP
2002-192739 July 2002 JP
Patent Publication Number: 20080030558
Inventors: Takeo Seino (Nagano-ken), Hitotoshi Kimura (Nagano-ken), Taku Ishizawa (Nagano-ken), Yasunao Uehara (Nagano-ken), Masahide Matsuyama (Nagano-ken)
Application Number: 11/866,118