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:
Apr. 14, 1987
Filed:
Aug. 28, 1985
Applicant:
Inventors:
Yoshiaki Asayama, Himeji, JP;
Seiya Kominami, Takasago, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
204 / ; 204425 ; 204426 ;
Abstract
A method to accurately sense the stoichiometric air-to-fuel (A/F) ratio by aintaining the electromotive force of an oxygen sensor at a predetermined value of about 100 mV and using an oxygen concentration measuring device of the solid electrolyte oxygen pumping type.