Incandescent lamp having two lead-in conductors sealed within one end thereof
US4621220A · kind A · utility
4Cited by
7References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 1, 1984 |
| Grant date | Nov 4, 1986 |
| Priority date | — |
| Expiry date | Feb 1, 2004 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01K1/42
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A tungsten-halogen lamp including a tubular quartz envelope wherein both of the lead-in conductors designed for providing electrical energy to the lamp's coiled filament are strategically positioned within a single, press-sealed end portion of the lamp's envelope. Electrical connections to the lamp may thus be provided and only one end thereof to thereby facilitate positioning and connection of the lamp within a photocopier or similar machine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.