Patents by Inventor Barry M. Bidinger

Barry M. Bidinger 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).

  • Lock-out trolley for garage door opener
    Patent number: 4905542
    Abstract: A lock-out trolley for a garage door has a first trolley member having body and a pair of pivot pins connected thereto. A latch arm, pivotally mounted on the pivot pins, has a trolley engaging member for selectively engaging a second trolley member. A cardioid shaped aperture in the latch arm engages one of the pivot pins and may lock the latch arm out of engagement with the second trolley member. A spring biases the latch toward its engaged position.
    Type: Grant
    Filed: April 20, 1989
    Date of Patent: March 6, 1990
    Assignee: The Chamberlain Group, Inc.
    Inventors: George C. Burm, Philip A. McCartney, Barry M. Bidinger