Patents by Inventor Lynn M. Johnston

Lynn M. Johnston 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).

  • Clutch for power door lock actuator
    Patent number: 4850466
    Abstract: A power door lock actuator includes a one piece molded and centrifugally expandable brake ring that is held on a drive ring to a motor shaft within a lock lift arm driving cup that is freely pivoted to the shaft. A camming member on the drive ring fits within the brake ring so as to retain it to the shaft, to maintain it in a ready position spaced from the cup when stationary, and so as to jam it into the wall of the cup when turning.
    Type: Grant
    Filed: May 19, 1988
    Date of Patent: July 25, 1989
    Assignee: General Motors Corporation
    Inventors: Deno J. Rogakos, Lynn M. Johnston, Keith R. Cook
  • Energy absorbing coupling
    Patent number: 3984998
    Abstract: An energy absorbing coupling for use with an electric motor-driven window regulator mechanism, including a torsion spring arrangement between an input gear and an output pinion which provides (1) a driving connection in either direction, and (2) a relative movement or lost-motion connection for absorbing the energy generated by the inertia of the electric motor armature when the window reaches its limit of movement in one direction of the other.
    Type: Grant
    Filed: September 12, 1975
    Date of Patent: October 12, 1976
    Assignee: General Motors Corporation
    Inventors: Deno J. Rogakos, Lynn M. Johnston