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Spark Plug Having Titanium Diboride Electrodes

Abstract: 

A spark plug for use in an internal combustion engine comprises an electrically nonconductive body member and a pair of electrodes formed of a material each having titanium diboride as its major component. Tests indicate that titanium diboride electrodes are extremely resistant to electrical erosion. The spark plugs embodying the present invention are particularly useful in continuous cycle or heavy duty cycle engines that have heretofore been the subject of severe electrode erosion.

Patent Number: 
5,493,171
Date Of Issue: 
02/20/1996
Inventors: 

Charles D. Wood, III;Cheryl Blanchard;James Lankford, Jr.;James J. Cole;Gerald S. McAlwee