Spark plug having spark portion provided with a base...

Details Spark plug having spark portion provided with a base... Spark plug having spark portion provided with a base...

2007-04-05

2009-08-04

Santiago, Mariceli (Department: 2879)

Electric lamp and discharge devices

Spark plugs

Shaped electrode chamber, insulator end, shell skirt, baffle...

C313S141000, C313S142000

Reexamination Certificate

active

07569979

ABSTRACT:
A spark plug having a center electrode and a ground electrode wherein the spark portion of at least one of the center electrode and ground electrode includes a base material and a protective material that substantially prevents corrosion of the base material.

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