SPARK PLUG
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Issued Date -
Sep 5, 2013
app pub date -
Mar 2, 2012
filing date -
Mar 2, 2012
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A spark plug includes a terminal for receiving an electrical charge, a firing electrode on a firing end of the spark plug, and a conductor electrically coupling the terminal and firing electrode. The spark plug further includes a casing, an electrical insulator, and a ground electrode. The casing is at least partially formed from an electrically conductive material and is configured to be electrically coupled to a ground. The electrical insulator separates the conductor from the casing. The ground electrode is positioned proximate to the firing electrode, but separated from the firing electrode by a spark gap. The ground electrode includes an extension projecting from the casing such that the firing electrode is closer to the ground electrode than the firing electrode is to the casing. There is substantially no air gap between the interior of the casing and the electrical insulator from the firing end of the spark plug.
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