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:
Nov. 25, 2003
Filed:
Jun. 27, 2002
Masafuyu Sano, Okazaki, JP;
Kazutoyo Osuka, Gamagori, JP;
Norihiro Adachi, Kariya, JP;
Yoshihiro Shimoide, Aichi-ken, JP;
Osamu Sugie, Handa, JP;
Kaneo Buma, Oobu, JP;
Katsunori Akimoto, Okazaki, JP;
Atsuyuki Konishi, Anjo, JP;
Masaharu Shimohata, Takahama, JP;
Yoshitaka Sato, Toyohashi, JP;
Denso Corporation, Kariya, JP;
Abstract
An ignition coil includes a housing which contains a central core portion, an inner spool having a first winding, and an outer spool having a second winding. The inner spool extends outward of the central core portion. The outer spool extends outward of the inner spool. A locating member includes a locating rib adjacent to an upper portion of the central core portion. The locating rib is in a gap between the inner spool and the central core portion, and locates the inner spool and the central core portion relative to each other. Insulating resin injected into the housing provides insulation among parts in the housing. At least one of the inner spool and the locating member has a void-escape passage which connects the gap and an outside of the inner spool with each other, and which allows a void to escape from the injected insulating resin in the gap.