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:
Jan. 18, 1977
Filed:
Oct. 31, 1974
Applicant:
Inventors:
Takayuki Kato, Nishikamo, JA;
Satoshi Yamazaki, Nagoya, JA;
Assignees:
Toyota Jidosha Hanbai Kabushiki Kaisha, Nagoya, JA;
Kabushiki Kaisha Toyota Chuo Kenkyusho, Aichi, JA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01M / ;
U.S. Cl.
CPC ...
324 15 ; 73116 ;
Abstract
An apparatus for measuring the spark gap between the electrodes of the spark plug for automobile internal-combustion engines, comprising a probe adapted to detect a secondary voltage and having a potential divider circuit therein for supplying a low-voltage signal, and a plurality of electrical circuits for processing the signal and indicating the spark gap as detected for each cylinder on display means.