Electric lamp or space discharge component or device manufacturi – Process – Spark plug or spark gap making
Reexamination Certificate
2008-03-27
2011-11-08
Macchiarolo, Peter (Department: 2879)
Electric lamp or space discharge component or device manufacturi
Process
Spark plug or spark gap making
C313S142000
Reexamination Certificate
active
08052495
ABSTRACT:
A spark plug (100) including a center electrode (130) and a ground electrode (140), which is formed by joining a ground electrode chip (143) to a ground electrode base material (141) via an intermediate member (142). A method for producing the spark plug (100) includes providing a projecting portion (142p) on the intermediate member (142), and projection-welding the intermediate member (142) to the ground electrode base material (141) by means of the projecting portion (142p), to thereby join the intermediate member142to the ground electrode base material (141). Further, the intermediate member (142) of the spark plug (100) includes a cylindrical columnar portion (142e) which is joined to the ground electrode chip (143), and a flange portion (142d) which is joined to the ground electrode base material (141) and which flange portion (142d) has a diameter greater than that of the cylindrical columnar portion (142e).
REFERENCES:
patent: 6597089 (2003-07-01), Matsutani
patent: 6621198 (2003-09-01), Kanao et al.
patent: 6630771 (2003-10-01), Ulm et al.
patent: 6923699 (2005-08-01), Matsubara et al.
patent: 7084558 (2006-08-01), Teramura et al.
patent: 2002/0070646 (2002-06-01), Chiu
patent: 2003/0181121 (2003-09-01), Matsubara et al.
patent: 2004/0041506 (2004-03-01), Teramura et al.
patent: 2006/0061250 (2006-03-01), Yoshimoto et al.
patent: 2006/0238092 (2006-10-01), Teramura et al.
patent: 1463061 (2003-12-01), None
patent: 57-163976 (1982-10-01), None
patent: 57163976 (1982-10-01), None
patent: 8-298178 (1996-11-01), None
patent: 8298178 (1996-11-01), None
patent: 9-106879 (1997-04-01), None
patent: 9106879 (1997-04-01), None
patent: 2002-524821 (2002-08-01), None
patent: 2002524821 (2002-08-01), None
patent: 2004-127916 (2004-04-01), None
patent: 2004-134209 (2004-04-01), None
patent: 2004127916 (2004-04-01), None
patent: 2004134209 (2004-04-01), None
Welding Technology; Jun. 1, 1988; pp. 118-125.
Chinese Office Action corresponding to Chinese Patent Application No. 200810089108.7 dated Jun. 11, 2010.
Kato Tomoaki
Musasa Mamoru
Torii Kazuyoshi
Macchiarolo Peter
NGK Spark Plug Co. Ltd.
Sughrue & Mion, PLLC
LandOfFree
Method for producing spark plug by projection welding and... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for producing spark plug by projection welding and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for producing spark plug by projection welding and... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4269005