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. 08, 2003
Filed:
Nov. 16, 2000
Applicant:
Inventor:
Michael A. V. Ward, Arlington, MA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J 1/346 ;
U.S. Cl.
CPC ...
H01J 1/346 ;
Abstract
A high efficiency high voltage ignition coil with segmented high voltage bobbin ( ) with the last few bays ( ) having fewer secondary winding turns than the average and thicker flanges separating the bays, and further including an inductor ( ) of inductance at least 0.5 mH with a core material which is lossy in the 100 KHz to 1 MHz range, the inductor located between the end of the high voltage winding and the spark gap ( ) so as to reduce the peak voltages across the last few high voltage bays immediately following the spark gap breakdown.