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. 20, 1987
Filed:
Jul. 18, 1985
Donald E Ellison, St. Clair Shores, MI (US);
United Technologies Automotive, Inc., Dearborn, MI (US);
Abstract
A coil assembly, as for the secondary of a high voltage ignition transformer, includes a coil subdivided into segments by radial flanges on a coil bobbin. Cross-over grooves provided in the bobbin flanges allow the coil wire transitioning from one coil segment or slot into the next to be relatively isolated from contact with coil-turns of greatly different electrical potential. The formation of the cross-over groove in a respective bobbin flange is such that the cross-over of the coil wire from one segment to the next is forced to occur and remain at a radially-outward position relative to the formed coils. Guide ridges facilitate the cross-over of the coil wire at the entry to a respective cross-over groove.