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:
Feb. 15, 1977
Filed:
Jul. 17, 1973
Applicant:
Inventors:
Bernard R Laprade, 64 - Arudy, FR;
Xavier J Laprade, 64 - Arudy, FR;
Pierre J Gele, 65 - Odos Tarbes, FR;
Assignee:
Other;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02M / ; F01N / ; F02B / ;
U.S. Cl.
CPC ...
1231 / ; 60276 ; 60285 ; 123 26 ; 123 / ; 1231 / ; 1231 / ;
Abstract
A device for correcting the proportioning of the air/petrol mixture furnished by a proportioning means to an internal combustion engine comprising a probe producing a signal which is a function of the oxygen or carbon monoxide content of engine exhaust gas and an auxiliary air admission valve downstream of the air/petrol proportioning means, this valve being periodically operable by control means sensitive to said signal.