Nozzles and methods of and apparatus for forming nozzles
US6089698A · kind A · utility
37Cited by
7References
68Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 28, 1994 |
| Grant date | Jul 18, 2000 |
| Priority date | — |
| Expiry date | Jul 28, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49401
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Nozzles for an ink jet printer are formed by laser ablation in a nozzle plate (24) which has previously been bonded to the body of the printer (16). The laser beam is caused to converge at a point in front of the nozzle plate (24) so that a nozzle is formed which tapers toward the outlet. First and second beam masks (72, 74) are established in front of a focussing lens with the masks being respectively conjugate in the lens with the nozzle inlet and outlet, which are of different shape. The nozzle has a central land (218) which controls the ink meniscus and avoids the ejected drop receiving a sideways kick from the nozzle wall.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.