Apparatus and method for safe state retention
US9208941B2 · kind B2 · utility
0Cited by
2References
20Claims
0Family size
Inventor
Key dates
| Filing date | Aug 16, 2012 |
| Grant date | Dec 8, 2015 |
| Priority date | — |
| Expiry date | Nov 23, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M1/325
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A transformer core apparatus includes a body of highly magnetically permeable material, a permanent magnet arranged in a safe state position for saturating the body with a permanent magnetic field, and means for removing the permanent magnetic field from the body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.