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. 16, 2012
Filed:
May. 14, 2010
Frederick J. Quitmeyer, Rochester Hills, MI (US);
Kevin J. Kowalski, Perrysburg, OH (US);
Mark S. Mcmurray, Toledo, OH (US);
Frederick J. Quitmeyer, Rochester Hills, MI (US);
Kevin J. Kowalski, Perrysburg, OH (US);
Mark S. McMurray, Toledo, OH (US);
Federal-Mogul Ignition Company, Southfield, MI (US);
Abstract
A spark ignition device, ground electrode therefor, and methods of construction thereof are provided. The spark ignition device includes a generally annular ceramic insulator with a metal shell surrounding at least a portion of the ceramic insulator. A center electrode is received at least in part in the ceramic insulator and a ground electrode extends from the shell to a free end portion. A firing tip is attached adjacent the free end portion of the ground electrode to provide a spark gap between the center electrode and the firing tip. The free end portion is at least partially bounded by at least one 'as laser cut' peripheral side extending adjacent the firing tip.