Spark plug
OwnerHarry E. Franksinventor
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Abstract
Spark plugs having electrodes formed from combinations in defined proportions of tungsten, vanadium, depleted uranium, rhodium, iridium, palladium, nickel, chromium, copper, barium aluminate, iron, and thoria. Various advantageous electrode configurations are described, as well as methods of constructing the spark plugs.
Claims2
A spark plug comprising a mounting body and outer and inner electrodes carried by said body extending forwardly therefrom and separated from each other by a space constituting a spark gap, said outer electrode having an inner surface of revolution opposing said inner electrode across said spark gap, said inner electrode having an outer surface parallel to the opposing surface of said outer electrode to provide a large number of alternate sparking paths through said gap;
- both of said electrode surfaces being formed of an alloy consisting of 75% nickel, 15% chromium, 5% iron, and the remainder copper.
Dependencies are inferred from the claim text.