Mercury-containing glass-capsule dispenser for discharge lamps
US4182971A · kind A · utility
15Cited by
4References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 10, 1978 |
| Grant date | Jan 8, 1980 |
| Priority date | — |
| Expiry date | Jul 10, 1998 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J9/395
- 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. There is a gap in the shield and a mercury-containing glass capsule disposed proximate the gap. The capsule is supported on the shield by means of an axial wire in the capsule extending beyond both ends of the capsule and welded to the shield. A crack in the glass permits the mercury in the capsule to develop a vapor pressure in the lamp.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.