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:
Aug. 01, 2000
Filed:
Jun. 30, 1998
Applicant:
Inventors:
James D Lykowski, Temperance, MI (US);
Robert S Ingham, Toledo, OH (US);
Thomas R Schuster, Toledo, OH (US);
Assignee:
Cooper Automotive Products, Inc., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G10L / ; G01M / ;
U.S. Cl.
CPC ...
73714 ; 73 3512 ; 73756 ;
Abstract
A spark plug is installed in an internal combustion engine to monitor engine performance. The spark plug includes a core having a central longitudinal axis and defining a first bore extending along the central longitudinal axis. A layer of insulation surrounds the bore. A sensor is located within the bore. A first electrode is embedded in the core remote from the bore. The electrode includes a firing portion at a firing end of the spark plug. A ground electrode is arranged adjacent to the firing portion of the first electrode.