Patents by Inventor Gerald J. Campbell

Gerald J. Campbell 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).

  • Tape drive mechanism
    Patent number: 4253277
    Abstract: A tape drive window regulator mechanism includes a pair of track sections interconnected by a housing which mounts a rotatable roller and includes a pair of mounting sections each respective to and receiving the end of one track section. One of the track sections has its other end secured to a drive unit which moves a perforated tape through the track sections and around the roller with the tape being connected to a window drive unit for moving the window between open and closed positions.
    Type: Grant
    Filed: August 27, 1979
    Date of Patent: March 3, 1981
    Assignee: General Motors Corporation
    Inventors: Gerald J. Campbell, Stephen J. Fiordellisi