Method for manufacturing a spark plug electrode
US4826462A · kind A · utility
23Cited by
7References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 19, 1988 |
| Grant date | May 2, 1989 |
| Priority date | — |
| Expiry date | Aug 19, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01T21/02
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An improved method for manufacturing a spark plug electrode having a substrate formed from a first metal and a spark gap surface area formed from a second metal, such as a precious metal. The spark gap surface area is formed by heating the portion of the first metal at which the spark gap surface is to be formed with a plasma arc and applying the second metal as a consumable welding electrode, cooling the first metal and the applied second metal, and, optionally, shaping the second metal to form a desired surface configuration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.