Electric lamp and discharge devices – Spark plugs – Particular electrode structure or spacing
Patent
1996-03-29
1999-09-14
Lusignan, Michael
Electric lamp and discharge devices
Spark plugs
Particular electrode structure or spacing
313144, 313127, 313137, 4273761, 427226, H01T 1320, B05D 302
Patent
active
059527692
ABSTRACT:
The present process for the production of sparkplugs provides coated sparkplugs that are resistant to carbonization or lead fouling of the central ceramic insulator. A liquid metal carboxylate composition is applied to the insulator of the sparkplug and subjected to heat treatment at a temperature preferably above 400.degree. C. to form a durable metal oxide layer on the insulator.
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Kling, Anton, et al., Ignition Devices, e.g., Spark Plugs, Hot Plugs, and the Like, Consisting of a Ceramic or Metallic Base and Whose Tip is Coated with an Oxide, and Their Manufacture, Chemical Abstracts, vol. 117, No. 8, Sec. 157, Abstract No. 0705045.
Ooshima, Takafumi, "Durable Spark Plugs with Metal Oxide-Treated Tips," Chemical Abstracts, vol. 105, No. 26, Sec. 156, Abstract No. 231052w.
Chen Bret
Ewing, IV James L.
Gray Bruce D.
Lusignan Michael
Sparco, Inc.
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