Continuous stream ink jet print head droplet generator having backing member bridging divided vibrator
US6536881B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 24, 1999 |
| Grant date | Mar 25, 2003 |
| Priority date | — |
| Expiry date | May 24, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/025
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A continuous stream ink jet print head has a droplet generator with an elongate cavity for containing the ink, and nozzle orifices in a wall of the cavity for passing ink from the cavity to form jets. The nozzle orifices are disposed at spaced positions along the length of the cavity. An actuator for vibrating the ink in the cavity is provided such that each jet breaks up into ink droplets at the same predetermined distance from the wall of the cavity. The actuator is disposed on the opposite side of the cavity to the wall, includes a vibrator which is divided up along the length of the cavity at least partially into at least two parts, and includes a backing member disposed further from the cavity than the vibrator and secured to and bridging the parts into which the vibrator is at least partially divided. The vibrator is interposed in line between the backing member and the cavity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.