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. 09, 1978
Filed:
Dec. 05, 1975
Applicant:
Inventor:
Louis J Chateau, Rosny sur Bois, FR;
Assignee:
Ducellier et Cie., Paris, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02P / ; H05B / ;
U.S. Cl.
CPC ...
1231 / ; 3152 / ; 1231 / ;
Abstract
An electronic ignition control device employs two switch devices (e.g. mechanical contact breakers) operating at different instants to control initiation and interruption of current flow in the primary winding of the ignition coil. The coil current is controlled by an output transistor which is biased to conduct but which is switched off by an input transistor when a spark is required. The input transistor is controlled by the two switch devices so that opening of one switch device initiates primary current and opening of the other interrupts this primary current.