High intensity discharge lamp including arc extinguishing means
US4388557A · kind A · utility
7Cited by
6References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 16, 1981 |
| Grant date | Jun 14, 1983 |
| Priority date | — |
| Expiry date | Mar 16, 2001 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J61/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A high intensity discharge device includes a reactive element which will oxidize and grow dimensionally to open the lamp circuitry in the event oxygen leaks into the outer envelope of the lamp.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.