Patents by Inventor Gary V. Roberts

Gary V. Roberts 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).

  • Electrical link and sensor system for automatic sliding doors
    Patent number: 5581944
    Abstract: A sliding door system employs an electric power link. The electric link includes a ribbon conductor which is enclosed in a protective chain-like guard to provide electrical communication between the sliding door and the door header. Electrical modules such as electromagnetic locks, switches and sensors are mounted directly on the sliding door. Safety sensors are mounted at the leading and trailing edges of the sliding door panels to sense whether an obstacle or traffic has cleared.
    Type: Grant
    Filed: July 8, 1993
    Date of Patent: December 10, 1996
    Assignee: The Stanley Works
    Inventors: Henning N. Kornbrekke, Anthony R. Ranaudo, Alexander M. Mitchell, Gary V. Roberts