Patents by Inventor Ronald C. Grable

Ronald C. Grable 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).

  • Distributor spring for use in a magnetic sensor
    Patent number: 4119075
    Abstract: An electronic ignition system for internal-combustion engines is disclosed, the system having a magnetic pulse unit using a sensor that produces a voltage trigger pulse in response to the rotation of a distributor shaft past a pole of a permanent magnet, the improvement comprising a flat-leaf spring having a plurality of relatively sharp corners mounted over a portion of the shaft so that the corners of the spring pass in close proximity to and disturb the magnetic field around the permanent magnet as the shaft rotates.
    Type: Grant
    Filed: August 9, 1976
    Date of Patent: October 10, 1978
    Assignee: W. R. Grace & Co.
    Inventor: Ronald C. Grable