Spark plug casing and spark plug having the spark plug casing

Details Spark plug casing and spark plug having the spark plug casing Spark plug casing and spark plug having the spark plug casing

2008-11-03

2011-10-11

Roy, Sikha (Department: 2879)

Electric lamp and discharge devices

Spark plugs

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

C313S118000, C313S141000, C313S144000, C123S1690EL

Reexamination Certificate

active

08035286

ABSTRACT:
A spark plug casing includes a single-piece shell having a nut portion, first and second tubular portions and a converging shell portion, which are configured to be removed from a cylinder head as an integral device. The first tubular portion extends from the nut portion and has a first cross-sectional size. The second tubular portion has a second cross-sectional size less than the first cross-sectional size. The converging shell portion is coupled between the first and second tubular portions. The casing further includes a ground strap having a third cross-sectional size less than the second cross-sectional size. The ground strap is received within an end portion of the second tubular portion opposite the converging shell portion, such that the ground strap and the cylinder head are in a spaced relationship with respect to each other for preventing carbon buildup from binding the ground strap to the cylinder head.

REFERENCES:
patent: 3965384 (1976-06-01), Yamazaki
patent: 4250426 (1981-02-01), Nakajima et al.
patent: 4808878 (1989-02-01), Kashiwara et al.
patent: 4901688 (1990-02-01), Kashiwara et al.
patent: 4989557 (1991-02-01), Penney
patent: 5014656 (1991-05-01), Leptich et al.
patent: 5091672 (1992-02-01), Below
patent: 5430346 (1995-07-01), Johnson
patent: 5697334 (1997-12-01), Below
patent: 5918571 (1999-07-01), Below
patent: 5982079 (1999-11-01), Kibbey
patent: 6104130 (2000-08-01), Below
patent: 6316868 (2001-11-01), Ishino et al.
patent: 6552476 (2003-04-01), Hanashi et al.
patent: 6667568 (2003-12-01), Bugaets
patent: 2007/0252502 (2007-11-01), Wang
patent: 2001093645 (2001-04-01), None
Written Opinion of the International Searching Authority for PCT/US2008/082203 dated Mar. 31, 2009.
International Search Report of the International Searching Authority for PCT/US2008/082203 dated Mar. 31, 2009.

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