Apparatus for moving folded-back arms having a pair of opposing surfaces in response to an electrical activation
US6759790B1 · kind B1 · utility
27Cited by
186References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 27, 2002 |
| Grant date | Jul 6, 2004 |
| Priority date | — |
| Expiry date | Mar 27, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02N2/043
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A pizoelectric actuator assembly for actuating industrial control valves or clamps provides a compact actuator including a single piece main structure with integrated hinge, mechanical lever, and spring in a shape such that in response to electrical activation, the piezoelectric device transfers mechanical energy from a predetermined axis into the force transfer member operably positioned for driving at least one pivotable arm portion in rotational movement with a loss of motion of less than 40%.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.