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. 21, 2014
Filed:
Jan. 13, 2012
Patrick M. Gfell, Waterville, OH (US);
Donald R. Gregg, Weston, OH (US);
Kevin J. Kowalski, Perrysburg, OH (US);
Patrick M. Gfell, Waterville, OH (US);
Donald R. Gregg, Weston, OH (US);
Kevin J. Kowalski, Perrysburg, OH (US);
Federal-Mogul Ignition Company, Southfield, MI (US);
Abstract
A spark plug () for being threaded into a cylinder head () includes a shell () with threads () disposed at a predetermined angled relative to the ground electrode (). The position of the threads () relative to the ground electrode () places the ground electrode () in a predetermined position in the combustion chamber () and relative to components of the engine, thus allowing the ground electrode () to provide a robust and reliable ignition. The threads () are formed by a thread forming apparatus () that includes an orientation tool () to position the ground electrode () relative to a thread forming apparatus (), allowing the thread forming apparatus () to form the threads () at the desired angle (α).