Piezo-electric actuator operable in an electrolytic fluid
US6316864A · kind A · utility
60Cited by
14References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 28, 2000 |
| Grant date | Nov 13, 2001 |
| Priority date | — |
| Expiry date | Jun 28, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10N30/2042
Abstract
A piezo-electric actuator operable in a fluid. The actuator has a piezo-electric element having one or more layers of piezo-electric material and electrodes adjacent to the piezo-electric material, the electrodes being coupled to electrical leads. A conductive layer surrounds the piezo-electric element, serving as a Faraday cage for shielding the fluid from effects due to electric fields within the conductive layer. A seal substantially impermeable to the fluid surrounds the piezo-electric element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.