Ceramic igniters with sealed electrical contact portion
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United States of America Patent
Stats
-
Aug 23, 2005
Grant Date -
May 1, 2003
app pub date -
Aug 17, 2002
filing date -
Aug 18, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Robust ceramic igniters are provided that include an improved sealing system which can significantly enhance operational life of the igniter. Preferred igniters comprise a conductive cold zone and hot zone with higher resisitivity. A hermetic sealant material covers one or more electrical connections on the of each cold zone, thus shielding the electrical connections from environmental exposure, and thereby avoiding igniter failure resulting from electrical shorts and/or undesired oxidation.
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