Electric lamp and discharge devices – Spark plugs – Plural part center electrode lead-in
Patent
1989-07-06
1991-04-16
Yusko, Donald J.
Electric lamp and discharge devices
Spark plugs
Plural part center electrode lead-in
313134, 313144, 313145, 252503, 252504, 252507, H01T 1305
Patent
active
050085840
ABSTRACT:
A spark plug containing a resistor which is a sintered body made from a mixture comprising coarse glass particles and fine glass particles, coarse ceramic particles and fine ceramic particles, and carbon black in special proportions is improved in noise signal suppression effect.
REFERENCES:
patent: 3909459 (1975-09-01), Friese et al.
patent: 4173731 (1979-11-01), Takagi et al.
Atsumi Morihiro
Tanaka Kiyoaki
Hamadi Diab
Nippondenso Co. Ltd.
Yusko Donald J.
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