Spark plug

Details Spark plug Spark plug

2005-07-12

2005-07-12

Patel, Vip (Department: 2879)

Electric lamp and discharge devices

Spark plugs

Plural parallel gaps

C313S141000

Reexamination Certificate

active

06917145

ABSTRACT:
A spark plug includes at least one ground electrode with a reduced temperature level. The spark plug encompasses a tubular metallic housing that has, at the combustion-chamber end, an outer rim on which at least one ground electrode is positioned. The cross-sectional area of the at least one ground electrode increases toward the outer rim of the housing.

REFERENCES:
patent: 196 23 989 (1998-01-01), None
patent: 784 679 (1935-07-01), None
patent: 9-129356 (1997-05-01), None
patent: 9-260025 (1997-10-01), None
patent: 2000-150108 (2000-05-01), None
Patent Abstracts of Japan, vol. 1997, No. 09, Sep. 30, 1997.
Patent Abstracts of Japan, vol. 1998, No. 02, Jan. 30, 1998.
Patent Abstracts of Japan, vol. 2000, No. 08, Oct. 6, 2000.

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