Ink jet nozzle arrangement with a segmented actuator nozzle chamber cover
US7637594B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 25, 2006 |
| Grant date | Dec 29, 2009 |
| Priority date | — |
| Expiry date | Dec 21, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49401
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A nozzle arrangement includes a wafer defining a nozzle chamber which can be supplied with ink via an ink supply channel. A cover is provided which covers the nozzle chamber. The cover defines a plurality of radially extending bridging portions which terminate in a common rim through which ink in the chamber can be ejected. The cover further defines a plurality of thermal bend actuators which each extend between a respective pair of adjacent bridging portions and each terminate in a free end proximal to the rim. Each thermal bend actuator is configured to bend upon actuation so that its free end enters the nozzle chamber and ejects ink through the rim.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.