Flow passage
US7651209B2 · kind B2 · utility
2Cited by
11References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 13, 2005 |
| Grant date | Jan 26, 2010 |
| Priority date | — |
| Expiry date | Jul 17, 2026 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/19
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
In one embodiment, an ink pen includes an ink chamber, a passage and a printhead operatively connected to the ink chamber through the passage such that ink flowing from the ink chamber to the printhead passes through the passage. The passage includes an upstream part having a polygonal cross sectional area and a downstream part having a cross sectional area smaller than the polygonal cross sectional area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.