Ink cartridge and a method for sealing an aperture provided for such cartridge
US6428154B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 26, 1996 |
| Grant date | Aug 6, 2002 |
| Priority date | — |
| Expiry date | Sep 26, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/17513
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An ink cartridge for ink jet use is provided with an aperture for filling in the cartridge with ink. The circumference of the aperture and a part of a plug pressed in the aperture are fused and welded to be formed integrally to airtightly close the aperture, and obtain an integrated structure without any interface. Hence, it is made possible to reliably prevent ink from leaking therefrom, even if some scratches and cracks are present on both of them. This contributes to eliminating inspection steps to find ink leakage in the course of manufacture, and also, contributes to improving the yield of production. As a result, a significant reduction of costs is possible, while enhancing the reliability of the ink cartridge.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.