The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 18, 2011
Filed:
Sep. 21, 2006
Applicants:
Andre Agneray, Boulogne Billancourt, FR;
Marc Pariente, Paris, FR;
Inventors:
Andre Agneray, Boulogne Billancourt, FR;
Marc Pariente, Paris, FR;
Assignee:
Renault S.A.S., Boulogne-Billancourt, FR;
Primary Examiner:
Int. Cl.
CPC ...
F02M 57/06 (2006.01); H01T 13/00 (2006.01); H01T 13/20 (2006.01);
U.S. Cl.
CPC ...
Abstract
A spark plug for a motor vehicle internal combustion engine, substantially elongated in shape, and including: two coaxial electrodes of an inner central electrode and an outer base electrode enclosing the central electrode; and an electrically insulating annular block, interposed between the central electrode and the base electrode and including an annular shoulder. The insulating annual block includes an annular groove located at the shoulder.