Liquid jet unit with orifices and recording apparatus using the same
US5361087A · kind A · utility
37Cited by
16References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 22, 1994 |
| Grant date | Nov 1, 1994 |
| Priority date | — |
| Expiry date | Feb 22, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2002/14475
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
In a liquid jet apparatus with ink discharging orifices and a recording apparatus using the same, each of the orifices has a trapezoidal cross-section, with at least the opposite bottom corners thereof having curved portions. The orifices preferably have a shape convergently tapering toward the outside of the recording head. The orifices are durable against temperature changes, impact, etc., which tend to cause cracking.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.