Patents by Inventor Jack W. Ehlen

Jack W. Ehlen 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).

  • Patent number: 4120277
    Abstract: The embodiments of the breakerless magneto device disclosed herein have a rotor with a permanent magnet imbedded in the periphery thereof which acts in cooperation with the first and second magneto cores to generate a varying flux field in the cores. The first core has a first winding mounted thereon and the second core, which is mounted next adjacent the first core but insulated therefrom, has a second winding mounted thereon. The first winding therefore encompasses the first core, the second core, and the second winding. The second winding provides a trigger pulse to a solid state device which interrupts the current in the first winding, at or near its maximum value, thereby collapsing the flux field in the first core. This causes a high voltage to be induced in the secondary winding of the magneto coil which is applied to the spark gap for fuel ignition. Stable and proper spark timing is achieved with this device.
    Type: Grant
    Filed: April 25, 1977
    Date of Patent: October 17, 1978
    Assignee: McCulloch Corporation
    Inventor: Jack W. Ehlen