RFI-suppressing ignition system for an internal combustion engine
Patent 4186712 Issued on February 5, 1980. Estimated Expiration Date: 
June 12, 1998. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
June 12, 1998. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3191133 3267325 3686607 3723809 3741186 3771006 3832586 3871349 InventorsApplicationNo. 05/914727 filed on 06/12/1978US Classes:123/633, Radio interference protection123/143C, Insulated casing enclosing wires leading to plugs, distributor, etc.123/169EL, Electrodes123/599, Having a magneto313/134With radio shieldingExaminersPrimary: Myhre, Charles J.Assistant: Nelli, R. A. Attorney, Agent or FirmInternational ClassesH01T 13/00 (20060101)H01T 13/41 (20060101) F02B 75/02 (20060101) AbstractThe invention contemplates a capacitor-discharge ignition system which includes a particular low-resistance, low-inductance, wire-wound circuit element at the spark plug which is operative with the spark plug and with the rest of the ignition system to materially suppress RFI generated at the spark gap. In application to high-speed, high-power two-cycle engines, use of the invention does not adversely affect engine performance. | |
