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:
Apr. 10, 1990
Filed:
Sep. 29, 1988
Wesley D Boyer, Dearborn, MI (US);
Ford Motor Company, Dearborn, MI (US);
Abstract
An ignition system having a first primary coil magnetically coupled only to a first second coil and a second primary coil magnetically coupled only to a second secondary coil. The secondary coils are electrically coupled to the output terminals through a diode steering circuit for connecting both secondary coils in voltage-aiding series such that the sum of the voltages on both secondary coils is coupled across the output terminals when both primary coils are simultaneously actuated; only the first secondary coil is coupled across the output terminals when only the first primary coil is actuated; and only the second secondary coil is coupled across the output terminals when only the second primary coil is actuated.