Spark plug

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United States of America Patent

PATENT NO 9178336
APP PUB NO 20140134912A1
SERIAL NO

14157251

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A spark plug is provided having a resistor. The resistor is made from resistor glass material containing an alkali free barium alumino-silicate glass mixed with mullite. In one embodiment, the resistor is a 15 to 30 wt % alkali free barium alumino-silicate glass and 10 to 25 wt % mullite. The resistor material provides for a greater processing kiln temperature range with reduced resistor variability and improved durability performance.

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Patent Owner(s)

  • BMO HARRIS BANK, N.A., AS SUCCESSOR COLLATERAL AGENT;FRAM GROUP IP LLC

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Boehler, Jeffrey T Holland, US 26 121
Zheng, Jing Findlay, US 67 763

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