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:
Sep. 13, 1983
Filed:
Feb. 01, 1982
Michael J Piteo, Enfield, CT (US);
R. E. Phelon Company, Incorporated, East Longmeadow, MA (US);
Abstract
Breakerless ignition system of the inductive type is used to provide ignition pulses for an internal combustion engine which substantially duplicates the timing performance of a breaker-point magneto. The system utilizes a transistor for making and breaking the current flow in the primary coil of the ignition transformer. Switching of the transistor is controlled by a silicon controlled rectifier (SCR) and gating of the SCR is controlled by a time-delay network which includes a capacitor, resistor and a transistor switching means in circuit with the control electrode of the SCR. A second transistor and capacitor network controls the rate of rise of current to the time-delay network as a function of engine speed.