Method of making a spark plug for an internal combustion engine

Details Method of making a spark plug for an internal combustion engine Method of making a spark plug for an internal combustion engine

1995-06-06

1996-09-17

Bradley, P. Austin

Electric lamp or space discharge component or device manufacturi

Process

Spark plug or spark gap making

445 49, H01T 2102

Patent

active

055563155

ABSTRACT:
A method of making a spark plug involves securing an outer electrode to a metallic shell so that at least a portion of the outer electrode is directed inwardly of a front open end of the metallic shell. The outer electrode has an inner surface, an outer surface, and an end surface. A center electrode is supported in an insulator in the metallic shell. A spark-erosion resistant noble metal tip is attached to the outer surface of the outer electrode with a predetermined distance between an elevational side of the center electrode and one end of the spark-erosion resistant noble metal tip.

REFERENCES:
patent: 2003464 (1935-06-01), Rabezzana
patent: 2296033 (1942-09-01), Heller
patent: 4329174 (1982-05-01), Ito et al.
patent: 4700103 (1987-10-01), Yamaguchi et al.
patent: 4893051 (1990-01-01), Kondo

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