Discharge tubes
US7279838B2 · kind B2 · utility
1Cited by
12References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 9, 2005 |
| Grant date | Oct 9, 2007 |
| Priority date | — |
| Expiry date | Jan 6, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J61/827
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Discharge tubes for a lamp include a body portion with a first end, a second end, and a tubular member defining an interior area. The tubular member extends along an elongated axis between the first end and the second end. The discharge tube further includes a first end portion provided at the first end of the body portion. The first end portion includes a first tubular extension having a first through passage in communication with the interior area. The first end portion further includes a first transition section connected between the first tubular extension and the body portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.