Spark plug having firing pad
US9673593B2 · kind B2 · utility
0Cited by
22References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 8, 2013 |
| Grant date | Jun 6, 2017 |
| Priority date | — |
| Expiry date | Mar 5, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01T21/02
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A spark plug has a firing pad attached to a center electrode or to a ground electrode. The firing pad is attached via laser welding and has a sparking surface with an overall fused area and an unfused area. In one or more embodiments, the overall fused area is located in part or more inboard of a peripheral edge of the firing pad.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.