Piezoelectric snap actuator
US4383195A · kind A · utility
26Cited by
7References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 24, 1980 |
| Grant date | May 10, 1983 |
| Priority date | — |
| Expiry date | Oct 24, 2000 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K2217/96027
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A piezoelectric actuator including a piezoelectric element; a snap-action device for exerting a positive force in opposition to the piezoelectric element and having a predetermined reaction force that must be overcome to cause the snap action; the piezoelectric element including piezoelectric means for providing an opposing force to the snap-action device in excess of the reaction force; and means for applying an electric field to the piezoelectric means to enable it to generate the opposing force and store energy in the snap-action device to enable occurrence of the snap action.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.