Mercury dispenser for arc discharge lamps
US4282455A · kind A · utility
8Cited by
1References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 7, 1979 |
| Grant date | Aug 4, 1981 |
| Priority date | — |
| Expiry date | Nov 7, 1999 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J61/24
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A mount for an arc discharge lamp has a cathode thereon which is encircled by a disintegration shield. The shield has a narrow gap between its ends with a mercury-containing metal capsule in the gap. The capsule is comprised of a metal cup having a larger diameter portion and a smaller diameter portion, the larger diameter portion having been flattened and sealed after the mercury has been dispensed into the capsule. The flattened larger diameter portion of the capsule is welded across the gap of the shield.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.