Ink cartridge and inkjet recording apparatus
US7325911B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 29, 2004 |
| Grant date | Feb 5, 2008 |
| Priority date | — |
| Expiry date | Nov 8, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/17523
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An ink cartridge has an ink tank for reserving ink and a joint connected to the ink tank, the joint including an outer frame having an ink channel, and a sealing member made of an elastic material and received in the outer frame, the sealing member having a cylindrical portion and a valve portion. When an ink supply pipe having an ink inlet is inserted into the cylindrical portion, the cylindrical portion abuts against an outer circumference of the ink supply pipe on an ink flow downstream side of the ink supply pipe with respect to the ink inlet. The valve portion leaves the outer frame so as to open the ink channel when the ink supply pipe is inserted into the cylindrical portion, and when the ink supply pipe is not inserted into the cylindrical portion, the valve portion abuts against the outer frame to close the ink channel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.