Heat shielded, spark plug boot assembly
US4497532A · kind A · utility
18Cited by
3References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 25, 1983 |
| Grant date | Feb 5, 1985 |
| Priority date | — |
| Expiry date | Oct 25, 2003 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01T13/04
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A heat shielded, spark plug boot assembly comprises an elastomeric boot and an electrically grounded heat shield. The heat shield has a thin inner dielectric barrier which is configured to protect against electrical discharges through the thinner vulnerable portions of the elastomeric boot and to be bypassed by corona conduction from the elastomeric boot to the metal shell of the heat shield. The elastomeric boot is ribbed to provide air flow passages between the elastomeric boot and the heat shield.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.