Patents by Inventor Robert T. Magrane

Robert T. Magrane 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).

  • Multiple step advance with magnetic trigger rotor
    Patent number: 4345553
    Abstract: An ignition system for a small internal combustion engine is disclosed, including a magnetic trigger rotor (33) having two magnets (45) disposed in arcuate slots (43), with a radial slot (41) disposed between the arcuate slots (43) for causing an abrupt flux reversal in a pickup coil (35) to generate an initial ignition timing signal, and two or more holes (47), (49) adjacent the radial slot and made in the direction of the axis of rotation of the rotor, for causing flux distortions which becomes significant at higher rotational speeds, to give a step-type ignition advance.
    Type: Grant
    Filed: March 25, 1980
    Date of Patent: August 24, 1982
    Assignee: Eltra Corporation
    Inventors: Robert T. Magrane, Nando A. Fontana