Focusable lamp capsule in a cementless base
US5420474A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 15, 1993 |
| Grant date | May 30, 1995 |
| Priority date | — |
| Expiry date | Jul 15, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J5/56
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A focusable lamp having lamp capsule, coupler, and a base is disclosed. The capsule is formed with rigid leads. The capsule and coupler are further formed to allow capsule to be held in the coupler and still focused with respect to the coupler. The coupler also includes an internally projecting tab that is sufficiently near one lead that despite movement of the lead during focusing, the gap between the lead and tab may be bridged by solder to thereby electrically and mechanically fix the lamp capsule to the coupler. The coupler and second lead are further aligned and connected to a base. No cement is needed to position the lamp capsule.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.