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. 27, 2013
Filed:
Jun. 28, 2012
Kevin J. Kowalski, Perrysburg, OH (US);
Richard L. Keller, Whitehouse, OH (US);
Frederick J. Quitmeyer, Rochester Hills, MI (US);
Richard Llope, Franklin, MI (US);
Kevin J. Kowalski, Perrysburg, OH (US);
Richard L. Keller, Whitehouse, OH (US);
Frederick J. Quitmeyer, Rochester Hills, MI (US);
Richard Llope, Franklin, MI (US);
Federal-Mogul Ignition Company, Southfield, MI (US);
Abstract
A spark plug includes an electrode tip assembly located at an axially-facing free end surface of an electrode body. The electrode tip assembly includes an electrode tip body and a firing tip and has a longitudinal axis that is generally perpendicular to a longitudinal axis of the electrode body. The electrode tip body may be a Ni-alloy piece and is attached to the electrode body, and the firing tip may be an Ir-alloy piece with a sparking surface that faces a spark gap. The electrode body may include a groove formed in the axially-facing free end surface that is useful to help position the electrode tip assembly for attachment. The spark gap can be formed between opposing electrode tip assemblies, and the size of the spark gap can be adjusted during assembly without the need for bending the electrode body.