Ignition device having a reflowed firing tip and method of making
US7385339B2 · kind B2 · utility
19Cited by
37References
46Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 3, 2005 |
| Grant date | Jun 10, 2008 |
| Priority date | — |
| Expiry date | Jul 14, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/5195
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A sparkplug having ground and center electrodes that include a firing tip formed from a noble metal or noble metal alloy by reflowing of a noble metal preform. The present invention also includes a method of manufacturing a metal electrode having an ignition tip for an ignition device, including forming a metal electrode having a firing tip portion; applying a noble metal preform to the firing tip portion; and reflowing the noble metal preform to form a noble metal firing tip.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.