Method of making a spark plug
US8348709B1 · kind B1 · utility
11Cited by
1References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 9, 2011 |
| Grant date | Jan 8, 2013 |
| Priority date | — |
| Expiry date | Dec 9, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01T21/02
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method of making a spark plug includes providing a metal shell, an insulator at least partially disposed in the metal shell, a ground electrode coupled to the metal shell, and a center electrode disposed within the insulator. The method also includes depositing a tip substance on the spark plug to form an electrode tip.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.