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:
Aug. 19, 1980
Filed:
Jan. 18, 1978
Applicant:
Inventors:
Kanemitsu Nishio, Komaki, JP;
Takashi Suzuki, Nagoya, JP;
Toshihiko Uenaga, Iwata, JP;
Fumio Zega, Hamamatsu, JP;
Assignees:
NGK Spark Plug Co. Ltd., both of, US;
Yamahara Hatsudoki Kabushiki Kaisha, both of, US;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02P / ;
U.S. Cl.
CPC ...
123653 ; 3152 / ; 123605 ; 123647 ; 123655 ;
Abstract
An ignition circuit for self-purifying creeping discharge spark plugs is disclosed. The ignition circuit comprises a creeping discharge spark plug including a center electrode and a concentric ground electrode between which is formed a spark gap having a creeping surface along which sparks are slidably moved, a capacitor located near said spark gap and connected in parallel therewith, and an impedance element connected in series with said capacitor and not impeding the movement of the electric charge discharged from said capacitor.