Electric lamp with protective base
US4918355A · kind A · utility
8Cited by
6References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 3, 1986 |
| Grant date | Apr 17, 1990 |
| Priority date | — |
| Expiry date | Nov 3, 2006 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01K1/24
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electric lamp (e.g., tungsten halogen) including an elongated envelope with at least one sealed end portion of flattened configuration. Located on the sealed end portion is a conductive base member of hollow configuration which is electrically coupled to the lamp's lead-in conductor (which projects externally from the envelope) and which is located not only substantially about the sealed end portion so as to substantially surround the end but also extends over a part of the envelope's body portion to thereby substantially prevent breakage of the sealed end portion (e.g., during lamp insertion and/or removal).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.