Source: http://www.google.com/patents/US7165835?dq=7,172,682
Timestamp: 2017-10-19 17:24:11
Document Index: 252656760

Matched Legal Cases: ['art 66', 'arts 11', 'art 301', 'art 301', 'art 11', 'arts 11', 'art 25', 'art 35']

Patent US7165835 - Ink cartridge and method of ink injection thereinto - Google Patents
An ink cartridge 1 is detachably connected to a head of a record apparatus and has a container main body 2 having an ink tank chamber 11 opened to the atmosphere in a state in which the head and the cartridge are connected and a first opening 85 through which ink can be injected into the ink tank chamber...http://www.google.com/patents/US7165835?utm_source=gb-gplus-sharePatent US7165835 - Ink cartridge and method of ink injection thereinto
Publication number US7165835 B2
Application number US 10/147,301
Also published as CA2386999A1, CA2386999C, CN1198731C, CN1386642A, CN2611150Y, DE60231449D1, EP1258361A1, EP1258361B1, US7575312, US7699452, US20020171721, US20070132816, US20070132817, US20070132818, US20070195138
Publication number 10147301, 147301, US 7165835 B2, US 7165835B2, US-B2-7165835, US7165835 B2, US7165835B2
Inventors Mutsuhiko Ota, Yukiharu Suda, Hisashi Koike, Satoshi Shinada, Michinari Tsukahara, Hisashi Miyazawa, Yasuto Sakai
Patent Citations (15), Referenced by (37), Classifications (16), Legal Events (3)
US 7165835 B2
A through hole 60 as an atmospheric communication hole opened and closed by the opening and closing operation of an atmospheric open valve 601 is made in a chamber wall 8 a of the valve storage chamber 8 (atmospheric open chamber 501), as shown in FIG. 8. The operation arm 66 is placed on one opening side of the through hole 60, and the atmospheric open valve 601 is placed on the other opening side of the through hole 60. The operation arm 66 has an operation part 66 b for pressing a pressurization film (elastically deformable film) 61, and is placed projecting in an upward slanting direction into the path of the valve operation rod 70 and is fixed to the container main body 2 through a rotation supporting point 66 a.
The pressurization film 61 is attached to the chamber wall 8 a so as to block the through hole 60, and the whole of the pressurization film 61 is formed of an elastic seal member of rubber, etc. The internal space formed between the pressurization film 61 and the opening peripheral margin of the through hole 60 is opened to a through hole 67 communicating with the first ink storage chamber (ink tank chamber) 11 (both are shown in FIG. 5).
Two intermediate walls 300 and 301 different in height position are disposed in the first ink storage chamber 11. One intermediate wall 300 is placed with a predetermined spacing from one side surface part of the first ink storage chamber 11. The other intermediate wall 301 is opposed to the bottom part of the first ink storage chamber 11 and is placed on the ink supply port side of the intermediate wall 300. The intermediate wall 301 partitions the first ink storage chamber 11 into two space parts 11 a and 11 b placed side by side in the ink injection direction (up and down). The intermediate wall 301 is formed with a through part 301 a having the same axis as the axis of the first opening 85. The through part 301 a is formed as an opening (notch) for allowing the nozzle tip of an ink injection machine (ink injector) described later to be inserted thereinto and positioned at the deep space part 11 a of both the space parts 11 a and 11 b.
On the other hand, as ink is consumed, air flows in through the through hole 67 (shown in FIG. 5) communicating with the atmosphere, and the ink liquid level in the first ink storage chamber 11 lowers. As ink is further consumed and the ink liquid level reaches the communication port 19 a, ink from the first ink storage chamber 11 (opened to the atmosphere through the through hole 67 at the ink supplying time) flows into the second ink storage chamber 16 via the communication flow passage 18 together with air. Since bubbles are moved up by a buoyant force, only the ink flows into the third ink storage chamber 17 through the communication port 15 a in the lower part of the vertical wall 15, passes through the communication port 26 a of the partition wall 26 from the third ink storage chamber 17, moves up on the communication passage 28, and flows into the upper part of the filter chamber 34 from the communication passage 28 through the area 31 and the communication port 24 a.
After this, the ink in the filter chamber 34 passes through the filter 55 shown in FIG. 7, flows into the differential pressure regulating valve storage chamber 33 from the through holes 25 a, further passes through the through hole 52 c of the membrane valve 52 separated from the valve seat part 25 b and then moves down in the recess part 35 shown in FIG. 6 and flows into the ink supply port 4.
Air needs to be prevented from being mixed into the ink end chamber. Thus, vacuum suction is conducted through the nozzle 100 a from the ink supply port 4 side at the same time as ink is supplied through the nozzle 100 c.
Further, the communication port 18 a is provided in the proximity of the ink injection port 86 b of the second opening 86, so that ink supplied through the nozzle 100 c is filled through the communication port 18 a, the communication flow passage 18, the second ink storage chamber 16, and the third ink storage chamber 17 up to the ink supply port 4 as ink mixed with no air (atmosphere).
US5898450 Feb 24, 1997 Apr 27, 1999 Samsung Electronics Co., Ltd. Ink cartridge for ink jet printer having easy ink supplementing function
JPH10217500A Title not available
JPS6120332A Title not available
US8182075 * Jul 2, 2009 May 22, 2012 Seiko Epson Corporation Liquid delivery system and manufacturing method thereof
Cooperative Classification B41J2/17596, B41J2/17563, B41J2/17513, B41J2/17553, B41J2/17556, B41J2/17509, B41J2/17523
European Classification B41J2/175C8, B41J2/175C3A, B41J2/175C1A, B41J2/175C2, B41J2/175C9, B41J2/175P