Rotating piezoelectric motor for discs
US11283371B2 · kind B2 · utility
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2References
14Claims
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Assignee
Inventors
Key dates
| Filing date | Feb 14, 2019 |
| Grant date | Mar 22, 2022 |
| Priority date | — |
| Expiry date | May 23, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02N2/001
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A rotating piezoelectric motor including a piezoelectric actuator including a resonator having a pair of arms connected at one of their ends in a connection area, the other two ends being referred to as ‘free’, a passive element able to be driven in rotation by the friction of the free ends on the passive element, the passive element including a disc and a rim extending from the periphery of the disc, the rim passing between the free ends of the arms.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.