Spark plug

Electric lamp and discharge devices – Spark plugs – Plural parallel gaps

Reexamination Certificate

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Details

C313S123000

Reexamination Certificate

active

11444935

ABSTRACT:
A spark plug is disclosed having at least one main electrode and at least one secondary electrode. The gaps associated with the secondary electrodes are between one third and two thirds the optimum gap distance. Resistors associated with the secondary electrodes control the current flow and therefore the voltage on the electrodes.

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patent: 6603245 (2003-08-01), Fletcher

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