Spark plug with undercut insulator
US8568181B2 · kind B2 · utility
0Cited by
7References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 28, 2011 |
| Grant date | Oct 29, 2013 |
| Priority date | — |
| Expiry date | Oct 28, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01T21/02
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A spark plug for an internal combustion engine, the spark plug having: an elongated center electrode having a center electrode tip at one end and a terminal proximate the other end; an insulator substantially surrounding the center electrode, the insulator having a channel formed in an exterior surface of the insulator; and an outer shell surrounding the insulator, the outer shell having a jamb nut portion and a distal end extending from the jamb nut portion, the distal end of the outer shell is aligned with the channel such that the distal end of the outer shell is received in and engages the channel of the outer shell.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.