Encapsulated magnet and method of forming same
US4647891A · kind A · utility
Inventor
Key dates
| Filing date | Dec 17, 1984 |
| Grant date | Mar 3, 1987 |
| Priority date | — |
| Expiry date | Dec 17, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49075
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An encapsulated magnet device which is made from bar stock having a hole drilled in, which receives a magnet, and thereafter the hole is plugged with a cap or plug of like material and subjected to a fusion process so that a magnetic device is obtained which is finely balanced and which is inert to the environment in which it is utilized. The method of fabricating the magnetic device of the invention comprises drilling out bar stock, inserting a magnet, closing the bore with a plug of like material, fusing the plug to the surrounding bar stock and thereafter milling or machining the encapsulated magnet member to the desired configuration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.