Single-ended low-pressure discharge lamp
US5345142A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Oct 22, 1992 |
| Grant date | Sep 6, 1994 |
| Priority date | — |
| Expiry date | Oct 22, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J5/62
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A single-ended low pressure discharge lamp having an Edison base includes at least one U-shaped fluorescent tube having electrode leads which are connected to a ballast arrangement disposed in a housing base. The housing base has an upper part on which the fluorescent tubes are mounted, a connecting part on which a threaded base is mounted and a supporting part formed between the upper part and the connecting part. Lead-in wires are connected from the ballast arrangement to the threaded base in a manner to facilitate automated assembly of the lamp. A first lead in wire connects to the central portion of the threaded base whereas a second lead-in wire connects to the sleeve portion after first passing through a guided opening formed in the housing base between the supporting part and the connecting part.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.