Patent · US Expired

Ignition device and method for producing it

US6822377B1 · kind B1 · utility

1Cited by

4References

10Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Carsten Venn · Bamberg, DE
Klaus Hrastnik · Stuttgart, DE
Thomas Jaeger · San Jose, US
Hellmut Schmid · Sachsenheim, DE

Key dates

Filing date	Jun 4, 2002
Grant date	Nov 23, 2004
Priority date	—
Expiry date	Jun 4, 2022

Classification

Technology area (CPC H)Electricity
CPC primaryH01T13/20
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

An ignition device, in particular, a spark plug for Otto engines, includes an electric connection (11) and a tubular metal housing (13) with a screw-in thread (18) stamped on it. At least one of the metal components of the spark plug is provided with a paint coating that serves to protect the spark plug from corrosion.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.