Ink jet head
US5270740A · kind A · utility
17Cited by
2References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 28, 1992 |
| Grant date | Dec 14, 1993 |
| Priority date | — |
| Expiry date | Feb 28, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2002/14379
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An ink jet head used for pulsed droplet ink jet printer uses a grooved piezo-electric element. The piezo-electric element includes a plurality of grooves, diaphrams and actuators. The actuator and two grooves at both sides of the actuator, filled with stuffing material, covers a corresponding one of passages. Therefore, even if the stuffing material moves when the actuator is energized, an interference problem does not occur. Consequently, the flexure force of each actuator can transmit to the corresponding passage to jet ink in the passage via a nozzle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.