Base aperture in ink jet cartridge with irregular edges for breaking surface tension of the ink
US6814433B2 · kind B2 · utility
4Cited by
44References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 13, 2002 |
| Grant date | Nov 9, 2004 |
| Priority date | — |
| Expiry date | Jun 13, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/17553
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An aperture provided in a bottom wall of an ink cartridge is designed to break the surface tension of the ink as the ink proceeds toward an outlet port. For example, serrated edges, tapering conformations, cruciform dividing walls, different diameter regions in the outlet passage, etc. are all designed to prevent the formation of large bubbles or preclude the migration of air bubbles to the region of the outlet passage where the print needle of an associated printer extends.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.