Magnetron
US6633131B2 · kind B2 · utility
1Cited by
5References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 8, 2001 |
| Grant date | Oct 14, 2003 |
| Priority date | — |
| Expiry date | Feb 22, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J25/587
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A ring-shaped depressed groove 11 is formed between a joining surface 10 of a stem insulating material 6 with a tubular metal container 16 and a joining surface 9 with cathode leads 2a and 2b. A metallized layer 8, formed at joining surface 9 and joining surface 10, is separated from edges 12 and 13 of ring-shaped depressed groove 11. The resulting magnetron reliably prevents discharges generated between the joining surface of the stem insulating material, with the tubular metal container, and the joining surface, with the cathode leads.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.