Magnetron pole piece assembly
US4177402A · kind A · utility
2Cited by
5References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 23, 1978 |
| Grant date | Dec 4, 1979 |
| Priority date | — |
| Expiry date | Feb 23, 1998 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J23/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A magnetron having permanent magnets sealed in the vacuum container, in which the permanent magnets and pole pieces associated therewith are supported with the inner wall of the vacuum container and holders provided thereon, and the pole pieces are projecting through the openings of holders into the interaction spaces which are defined between vanes in the vacuum container and a cathode, and the projecting portion of the pole piece is fixed to the opening of the holder by means of arc-welding or silver-alloy brazing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.