Passivation of ceramic piezoelectric ink jet print heads
US5731048A · kind A · utility
41Cited by
2References
33Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 14, 1996 |
| Grant date | Mar 24, 1998 |
| Priority date | — |
| Expiry date | Mar 14, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/1646
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
This invention relates to improvements in or relating to ceramic piezoelectric ink jet print heads of the kind having an ink channel for connection to an ink ejection nozzle and to a reservoir for the ink, and a piezoelectric wall actuator which forms part of the channel and is displaceable in response to a voltage pulse thereby generating a pulse in liquid ink in the channel due to a change of pressure therein which causes ejection of a liquid droplet from the channel. Such print heads are referred to hereafter as piezoelectric ceramic ink jet print heads.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.