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. 04, 1976
Filed:
Oct. 02, 1973
Applicant:
Inventors:
Assignee:
Nippondenso Co., Ltd., Kariya, JA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02P / ;
U.S. Cl.
CPC ...
1231 / ; 1231 / ;
Abstract
An ignition timing control device comprising a vacuum advance mechanism of the type controlling the ignition timing in response to the negative pressure in a carburetor, a negative pressure line between the carburetor and the vacuum advance mechanism, and a thermostatic valve for opening the negative pressure line to the surrounding atmosphere only when the temperature of an engine is within a predetermined temperature range.