Ink jet writing device
US4278983A · kind A · utility
21Cited by
4References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 23, 1979 |
| Grant date | Jul 14, 1981 |
| Priority date | — |
| Expiry date | May 23, 1999 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01D15/18
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An improved ink jet writing device is disclosed which comprises a specially configured glass capillary liner having a smoothly flaring, integral inlet nozzle in one embodiment and a converging-diverging inlet nozzle in another embodiment, both embodiments having a smoothly converging outlet nozzle. Both exhibit improved frequency response at reduced voltage compared to other jets having glass liners. A jet having an angled or bent tip also is disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.