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. 29, 1991
Filed:
Dec. 10, 1990
E Eugene Bruning, Normal, IL (US);
Ronald D Richardson, Pekin, IL (US);
Caterpillar Inc., Peoria, IL (US);
Abstract
Prior engine ignition systems for a multicylinder spark ignited engine have been too complex and have incorporated external wiring cables and a plurality of transformer assemblies that placed the individual primary and secondary coils thereof in an external location for better heat dissipation. Thus the cable and transformer assemblies were subject to damage by personnel working on the engine. These problems have been overcome by the engine ignition system including a transformer assembly having an elongate body including a cup portion containing the coils, a base portion, and a stem portion. A conducting core extends through the stem and base portions and a suitable clip connects the core electrically to a spark plug installed in a profiled bore of the cylinder head. A position device is provided to positively align and contain the transformer assembly within a valve mechanism compartment defined between the cover and the cylinder head, and including a spring member connected to the cup portion and depending guide members formed within the cover that cooperate with each other.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile