Apparatus and method for adjusting spark gap of spark plug

Application of precious metal to spark plug electrode

Bimetal electrode and method of making same

Bimetal electrodes for spark plugs or the like and method of mak

Center electrode structure for spark plug

Electrode for ignition plug

Electrodes, method for production thereof and spark plugs...

Equipment and method for producing spark plug

Extended life spark plug/igniter

Extrusion molded electrode formed as compound body and a method

Fabrication machine for fabricating spark plug with...

Fuel ignition device and method of assembling same

High efficiency, extended life spark plug having shaped firing t

High tension cable device and process of producing the same

Igniter constructions and methods of making the same

Integrated molding and inking process for forming a torch jet sp

Low cost spark plug manufactured from conductive loaded...

Manufacturing method for a spark plug

Manufacturing method for ignition plug involves removing...

Manufacturing method of resistor-incorporated spark plug