Control of velocity through a nozzle
US8727475B2 · kind B2 · utility
2Cited by
10References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 22, 2009 |
| Grant date | May 20, 2014 |
| Priority date | — |
| Expiry date | Dec 10, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/1642
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method is described wherein one or more parameters are measured that affect the nozzle velocity at which a printing fluid is ejected from a pumping chamber through a nozzle. The printing fluid is contained in the pumping chamber actuated by deflection of a piezoelectric layer. A surface area of an electrode actuating the piezoelectric layer is reduced based at least in part on the measured one or more parameters. Reducing the surface area of the electrode reduces the actuated area of the piezoelectric layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.