Spark plug with sealing ring around center electrode

Details Spark plug with sealing ring around center electrode Spark plug with sealing ring around center electrode

2006-09-12

2006-09-12

Williams, Joseph (Department: 2879)

Electric lamp and discharge devices

Spark plugs

Shaped electrode chamber, insulator end, shell skirt, baffle...

C313S118000, C313S141000

Reexamination Certificate

active

07105991

ABSTRACT:
A spark plug is disclosed. The spark plug has a ceramic insulator body and a center electrode that is housed at least partially in a bore in the insulator body. The center electrode is sealed off from the insulator body by at least one sealing ring surrounding the center electrode that contains material that is plastically deformable by compression.

REFERENCES:
patent: 3567987 (1971-03-01), Schnurmacher
patent: 3569765 (1971-03-01), Moray
patent: 4136259 (1979-01-01), Djeddah
patent: 4193012 (1980-03-01), Podiak et al.
patent: 4563158 (1986-01-01), Meyer
patent: 5569971 (1996-10-01), Clifford et al.
patent: 919 328 (1947-03-01), None
patent: 01-289084 (1989-11-01), None
European Search Report for related European Application No. EP 03 01 4237 (Nov. 28, 2003).

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