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:
May. 16, 1995
Filed:
Sep. 20, 1993
Applicant:
Inventors:
Yasuhiko Ida, Saitama, JP;
Makoto Sakamaki, Saitama, JP;
Assignee:
Toyo Denso Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01F / ;
U.S. Cl.
CPC ...
336 96 ; 336107 ; 336178 ; 336198 ; 336208 ;
Abstract
An engine igniting coil device wherein an I-type core fitted in a hollow portion of a primary coil bobbin and a U-type core are arranged to oppose at their end faces, each other at a specified gap therebetween to form a closed magnetic circuit. The primary coil bobbin with the I-type core has a core holding portion integrally formed thereon for attaching thereto an end portion of the U-type core and the core holding portion also serves as an anti-cracking cover. This cover can accurately determine the positions of both cores and can effectively prevent initiation of cracking in the potting resin injected and cured in the coil case.