Droplet discharging apparatus and method of manufacturing the droplet discharging apparatus
US7832847B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 26, 2006 |
| Grant date | Nov 16, 2010 |
| Priority date | — |
| Expiry date | Feb 3, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49401
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A droplet discharging apparatus has a pressure chamber communicating with a nozzle, a vibration film forming a part of the pressure chamber, a piezoelectric element for vibrating the vibration film, a projection joined to the piezoelectric element and transmitting vibration of the piezoelectric element to the vibration film, and a flow path communicating with the pressure chamber. The apparatus has first and second members, with the vibration film, the projection, a groove, and a supply hole communicating with the groove being provided at the first member. The nozzle and the pressure chamber are formed in the second member. The first member and the second member are bonded together to form the flow path in the groove and also the pressure chamber in the recess. The groove and the recess partially overlap to form the flow path and the pressure chamber. A method is disclosed for manufacturing the droplet discharging apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.