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:
Jun. 27, 1989
Filed:
Mar. 01, 1988
Applicant:
Inventor:
Pierre Heritier-Best, Issoire, FR;
Assignee:
Equipements Automobiles Marchal, Issy-les-Moulineaux, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F / ; H01F / ;
U.S. Cl.
CPC ...
336 61 ; 336 92 ; 336 96 ; 336178 ;
Abstract
An ignition coil, for use particularly in the ignition of an automotive internal combustion engine, includes a central magnetic core member on each side of which is arranged at least one magnetic current return circuit member and two windings, one of which is a primary winding and the other a secondary winding, arranged coaxially around the central magnetic core member. The primary and secondary windings and the central magnetic core member are arranged within an inner casing and covered with synthetic resin. An outer casing encloses the assembly thus formed and surrounded wholly or partially by the magnetic current return circuit member.