Method of sealing alumina arc tube
US3986236A · kind A · utility
6Cited by
3References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 12, 1974 |
| Grant date | Oct 19, 1976 |
| Priority date | — |
| Expiry date | Dec 12, 1994 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2237/84
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A niobium metal tube is sealed in the axial hole of a cylindrical alumina plug using a high temperature sealing glass. The plug is then sealed, at a lower temperature, in the end of an alumina arc tube.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.