Lamp filament support
US4310782A · kind A · utility
1Cited by
5References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 8, 1980 |
| Grant date | Jan 12, 1982 |
| Priority date | — |
| Expiry date | Feb 8, 2000 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01K1/24
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An improved filament support of especial value in linear tungsten halogen lamp of low wattage, is formed from a composite wire which comprises a core wire overwound with a further wire, both of tungsten. The supports according to the invention afford better grip and reduced weight as compared with the supports of the prior art.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.