Ink cartridge
US6802601B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 27, 2002 |
| Grant date | Oct 12, 2004 |
| Priority date | — |
| Expiry date | Sep 29, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2002/14403
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An ink cartridge is provided with a housing defining a body of the cartridge, an ink reservoir accommodated in the housing, an opening formed on the housing. The opening communicates with the ink reservoir through a fluid path. The cartridge further includes a stop to be tightly fitted in the opening. The stop has an elasticity, and is configured such that a hollow needle can be penetrated therethrough. A hole formed on the stop by penetration of the hollow needle is closed by the elasticity of the stop after removal of the same. A valve structure is provided to a part of the stop, the valve structure selectively opens and closes the communication between the opening and the ink reservoir through the fluid path.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.