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.

Date of Patent:
Nov. 04, 1997

Filed:

Mar. 11, 1996
Applicant:
Inventors:

Toshio Maekawa, Tokyo, JP;

Shigemi Murata, Tokyo, JP;

Mitsuru Koiwa, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02P / ; H01R / ;
U.S. Cl.
CPC ...
123635 ; 1231 / ; 439125 ;
Abstract

An electrical connector connecting a spark plug to an ignition coil comprising electrically insulating caps each having a cylindrical engaging surface adapted to be attached to the spark plug and the ignition coil. An electrically insulating sheath is attached and engaged with the engaging surfaces of the insulating caps at the engaging surfaces at its opposite ends so that at least one cylindrical engaging interface is defined therebetween. An electrical conductor is supported by and extended through the insulating sheath for electrically connecting the ignition coil and the high voltage terminal of the spark plug to each other. The electrical connector also comprises an electrically insulating structure, disposed in the engaging interface between the engaging surfaces of the caps and the sheath, for providing additional electrical insulation in the engaging interface. The insulating structure may be a circumferential annular ridge and groove in the engaging interface, an electrically insulating bonding agent disposed in the engaging interface, an axially extending annular wall and groove, or a circumferential annular space defined in the engaging interface between the engaging surfaces and a volume of electrically insulating bonding agent filled within the annular space.


Find Patent Forward Citations

Loading…