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:
Jan. 29, 2013
Filed:
Jun. 29, 2010
Albert Anthony Skinner, El Paso, TX (US);
Harry Oliver Levers, Jr., El Paso, TX (US);
Mark Albert Paul, El Paso, TX (US);
Colin Hamer, Noblesville, IN (US);
Hector J. Herrera, Chihuahua, MX;
Albert Anthony Skinner, El Paso, TX (US);
Harry Oliver Levers, Jr., El Paso, TX (US);
Mark Albert Paul, El Paso, TX (US);
Colin Hamer, Noblesville, IN (US);
Hector J. Herrera, Chihuahua, MX;
Delphi Technologies, Inc., Troy, MI (US);
Abstract
An ignition apparatus includes a core, primary and secondary windings and a loop-shaped magnetic return path structure. The structure includes layers of wound strip steel or wound ferritic wire stacked in an outward fashion. The core is placed in an interior of the loop forming at least one air gap between a core end surfaces and the structure. A combined core and magnetic return path structure includes a continuous loop formed by winding ferritic wire either on a spool or on a mandrel and is then bonded. The bonded winding is cut to form two C-shaped portions. Each C-shaped portion has a central yoke that extends into a pair of parallel legs. The C-shaped portions are re-assembled over primary and second windings so that the legs form a pair of parallel branches. One branch acts as the core and the other branch acts as the magnetic return path.