Apparatus for ejecting droplets of ink
US4625221A · kind A · utility
8Cited by
11References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 5, 1985 |
| Grant date | Nov 25, 1986 |
| Priority date | — |
| Expiry date | Apr 5, 2005 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/04581
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An apparatus for ejecting droplets of ink including: a passage for ink; an orifice disposed at one end of the passage; a pressure-applying device for applying a pressure wave to the ink within the passage; and a signal-supplying device for supplying an actuating signal to the pressure-applying device. The frequency of the signal is such that the displacement of the ink surface at the orifice due to the pressure wave is maximized.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.