Patents by Inventor Ronald G. Colvill

Ronald G. Colvill 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: 4579010
    Abstract: A shift lever mechanism for engine starting apparatus. The mechanism includes a pivotally mounted lever for translating axial movement of the plunger of a starter solenoid into axial movement of a pinion that is adapted to mesh with the ring gear of an engine. The part of the shift lever that is moved by the solenoid plunger has two opposed actuating surfaces that are located at different radial distances from the pivot point of the shift lever. These actuating surfaces are engaged by corresponding surfaces provided on a part movable with the plunger. When the plunger is pulled-in corresponding surfaces separate by an amount sufficient to permit a solenoid switch to open when the solenoid coil is deenergized and the plunger moved to a position to cause reengagement of the separated surfaces.
    Type: Grant
    Filed: September 26, 1984
    Date of Patent: April 1, 1986
    Assignee: General Motors Corporation
    Inventors: Jack A. Colvin, Ronald G. Colvill, Alan L. Smock