Ripple spring
US8400042B2 · kind B2 · utility
3Cited by
14References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 20, 2011 |
| Grant date | Mar 19, 2013 |
| Priority date | — |
| Expiry date | Jul 21, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K3/487
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A ripple spring is provided having one or more layers laminated together, where the one or more layers form a symmetrical stack.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.