Patents by Inventor Cynthia L. Diehl

Cynthia L. Diehl has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Batteryless starting and ignition system and method for internal combustion engine
    Patent number: 5370091
    Abstract: A batteryless starting and ignition system for a conventional automotive internal combustion engine includes a battery replacement circuit which simulates the effect of an operational automotive lead-acid battery in the engine electrical circuit while the engine is running. A jumper cable connector is wired across the replacement circuit to facilitate jump starting of the engine. The system is particularly useful to replace automotive batteries in irrigation systems in which automotive engines are adapted to drive irrigation pumps continuously for periods up to six months.
    Type: Grant
    Filed: April 21, 1993
    Date of Patent: December 6, 1994
    Inventors: Bruce A. Swagerty, Cynthia L. Diehl