Method for mounting electrodes in high pressure sodium lamps and resulting article
US4110656A · kind A · utility
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4References
4Claims
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Assignee
Inventor
Key dates
| Filing date | Jan 13, 1977 |
| Grant date | Aug 29, 1978 |
| Priority date | — |
| Expiry date | Jan 13, 1997 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J9/02
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method for securing an electrode to the electrode holder in a high pressure sodium discharge lamp and resulting article, which method, involves spot welding a thin niobium, tantalum or titanium wire across the flattened end of the electrode holder and thereafter spot welding the electrode rod to the electrode holder perpendicular to the axis of the thin wire to provide a strong bond between the electrode and the electrode holder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.