Laser welded spark plug electrode and method of forming the same
US8715025B2 · kind B2 · utility
1Cited by
3References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 19, 2013 |
| Grant date | May 6, 2014 |
| Priority date | — |
| Expiry date | Feb 19, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01T13/39
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electrode for a spark plug includes an electrode tip end. A first weld affixes at least a portion of the noble metal tip to the tip end of the electrode. The noble metal tip has a fold around its periphery. A second weld joins the fold of the noble metal tip to the tip end of the electrode and creates a seal over the first weld.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.