Spark plug incorporating a folded packing situated on an...

Details Spark plug incorporating a folded packing situated on an... Spark plug incorporating a folded packing situated on an...

2011-07-12

2011-07-12

Santiago, Mariceli (Department: 2879)

Electric lamp and discharge devices

Spark plugs

With particular connector structure

C313S118000, C313S141000

Reexamination Certificate

active

07977856

ABSTRACT:
A spark plug for an internal combustion engine includes a ground electrode, a center electrode, an insulator, a housing, and a folded packing which is situated on an outer circumference of the housing. The folded packing has: a hollow profile in cross section; a free leg directed outwards; and a support region. The folded packing lies on a contact surface in a support region, and the free leg is situated at an angle to the support region. The folded packing is pressed together during the mounting of the spark plug, and the free leg of the folded packing is designed to bend over in the direction of the support surface during the mounting to provide a diameter enlargement of the folded packing.

REFERENCES:
patent: 6489709 (2002-12-01), Teramura et al.
patent: 2004/0066124 (2004-04-01), Kanao et al.
patent: 2005/0127808 (2005-06-01), Suzuki et al.
patent: 2009/0085304 (2009-04-01), Miyashita et al.
patent: 2009/0102346 (2009-04-01), Fukuzawa et al.
patent: 1 039 601 (2000-09-01), None

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