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:
Jul. 12, 1983
Filed:
Nov. 24, 1980
Mitsukuni Tsutsui, Naka, JP;
Takashi Yoshinari, Katsuta, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
An ignition coil for an internal combustion engine including a first case of a hollow synthetic resin, which has one end fixing high voltage terminals for effecting connections with ignition plugs and its other end formed with an opening. Diode terminals are attached to the first case. The high voltage diodes which have the same side ends connected with the high voltage terminals from the first case and their other ends connected with the diode terminals. The high voltage diodes in the first case are encapsulated within an epoxy resin composite. Primary and secondary coils supplied with electric signals synchronized with a rotational speed in a secondary case to which primary and secondary terminals are attached. The second case is filled with an epoxy resin such that gaps between the wirings of the coils are sufficiently impregnated with that epoxy resin. The diode terminals and the secondary terminals are connected through the coils. The first case, accommodating the high voltage diodes and arranging the high voltage terminals in a row, the second case, accommodating the primary and secondary coils, the lead wires, and a portion of the primary terminals are molded of a synthetic resin into an integral structure.