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:
May. 31, 1977
Filed:
May. 09, 1975
Applicant:
Inventors:
Tsuyoshi Tamazawa, Yokohama, JA;
Takashi Kunugi, Yokohama, JA;
Assignee:
Nissan Motor Co., Ltd., , JA;
Primary Examiner:
Int. Cl.
CPC ...
F01N / ;
U.S. Cl.
CPC ...
60277 ; 60290 ;
Abstract
The present invention concerns an overheat protection device for a catalytic converter in which the injection of secondary air is prevented when the temperature in the catalytic converter is higher than a lower predetermined value and a warning signal is produced when the temperature is higher than a higher predetermined value.