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. 29, 1978
Filed:
Sep. 07, 1976
Applicant:
Inventors:
Hiroyuki Mitsudo, Kawanishi, JP;
Masazumi Yoshida, Amagasaki, JP;
Assignee:
New Cosmos Electric Company Limited, Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02P / ; H01T / ; H01T / ;
U.S. Cl.
CPC ...
1231 / ; 1231 / ; 313141 ; 313118 ;
Abstract
Improved spark-plugs for automobile internal combustion engines are made in a manner that thermal conductance (G) from flame nucleus to the electrodes is made as small as possible through decreasing of fluid resistance with respect to minute flame nucleus gas flow in the discharge, the fluid resistance being made small by making the discharge electrodes thin or making at least one of its discharge electrodes streamlined. The spark-plugs are capable of igniting and burning such lean gas mixture of 1.25 or more in excess air ratio (F). ##EQU1##