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:
Nov. 03, 1998
Filed:
Jun. 27, 1997
Applicant:
Inventor:
Paul W McLeod, Warrenville, SC (US);
Assignee:
R. E. Phelon Co., Inc., Aiken, SC (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02F / ;
U.S. Cl.
CPC ...
123599 ;
Abstract
An improved capacitive discharge ignition apparatus includes disable circuitry for permitting shut-off of the engine. The disable circuitry is operative to gate the discharge SCR, thereby shorting current that would otherwise charge the storage capacitor. A portion of the charging current is diverted through a transistor to the SCR gate. The transistor is rendered conductive for a predetermined time by a RC circuit connected to its base. The RC circuit is charged by momentary contact of a user-actuated switch. The time constant of the RC circuit is preferably selected to achieve engine stoppage under any anticipated operating conditions.