Deflecting magnetic field shield
US7220488B2 · kind B2 · utility
4Cited by
2References
20Claims
0Family size
Inventors
Key dates
| Filing date | Oct 18, 2004 |
| Grant date | May 22, 2007 |
| Priority date | — |
| Expiry date | Jul 22, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31717
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention concerns a shielding material for a magnetic shield containing coal slag; silver powder; a mixture of calcium powder, magnesium powder, and zinc powder; and silica powder. The shielding material is in powder form. In another embodiment, the present invention contemplates adding nano-silver to the shielding material. The present invention is based on the concept that the magnetic field is actually “deflected” away from the area shielded. This is possible in view of the shielding materials used to produce the magnetic shield.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.