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:
Oct. 20, 1992
Filed:
Jun. 18, 1991
Applicant:
Inventor:
Mitsunao Okumura, Nagaokakyo, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02P / ;
U.S. Cl.
CPC ...
123621 ; 123598 ; 123634 ; 336206 ;
Abstract
An ignition coil is provided with a primary coil which includes a distributed constant circuit including inductance and capacitance. A thyristor is connected in parallel to the primary coil, and a secondary coil is magnetically coupled to the primary coil. When a predetermined voltage is supplied to the primary coil, the capacitance is charged. If the thyristor is turned-on, the capacitance is discharged sequentially with time deviation since charge of the capacitance is sequentially delayed by the inductance which is connected in parallel to the capacitance.