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. 27, 1982
Filed:
Jan. 18, 1980
Applicant:
Inventors:
Kanemitsu Nishio, Komaki, JP;
Takashi Suzuki, Nagoya, JP;
Assignee:
NGK Spark Plug Co., Ltd., Nagoya, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02P / ;
U.S. Cl.
CPC ...
123598 ; 123606 ; 123636 ; 3152 / ;
Abstract
An ignition system for creeping discharge spark plugs for producing a spark discharge at least one portion of which slidably moves along a creeping discharge path is disclosed. The system comprises producing a spark discharge operative to ignite a mixed gas in an usual manner and selectively producing a purifying and sweeping spark discharge operative to remove carbon deposited on said creeping discharge path. An ignition circuit for carrying out the system is also disclosed.