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. 10, 1994
Filed:
Aug. 02, 1991
Applicant:
Inventors:
Robert W Deutsch, Sugar Grove, IL (US);
Koushun Sun, Hoffman Estates, IL (US);
Assignee:
Motorola, Inc., Schaumburg, IL (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F02P / ;
U.S. Cl.
CPC ...
123609 ; 123630 ; 123644 ;
Abstract
The present invention encompasses an ignition system with an ignition dwell signal (207) having charge and discharge states for driving at least one energy storage device (105) and at least one spark plug (103). This system applies an essentially periodic switching device (107, 209, 211, 215) for discharging excess energy in the energy storage device (105).