High-pressure sodium lamp spring clip cross piece for electrode and end plug support
US4538091A · kind A · utility
4Cited by
4References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 16, 1983 |
| Grant date | Aug 27, 1985 |
| Priority date | — |
| Expiry date | Feb 16, 2003 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J61/36
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method of assembling the arc tube of a high-pressure sodium lamp is disclosed that comprises using a spring clip to engage the lead wire proximate the end plug on the side opposite the electrode coil assembly. The electrode coil assembly is thereby centered relative to the end plug and the three ends of the clip provide planar support of the end plug/electrode on the end of the arc tube. The clip is formed by bending a refractory metal wire 180.degree. about the midpoint, bending the ends of the legs away from each other while maintaining co-planar geometry, and providing an indentation for engaging the lead wire.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.