Patents by Inventor William C. Stoneman

William C. Stoneman 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).

  • Aircraft towbar
    Patent number: 3995878
    Abstract: An aircraft towbar includes a forward section, which may be attached to a towing vehicle, and a pivotally connected rearward section which may be attached to an aircraft nosewheel. A C-shaped yoke connected to the forward section engages a compression spring connected to the rearward section. When the forward section is pivoted relative to the rearward section, the yoke compresses the spring urging the sections into a colinear relationship.
    Type: Grant
    Filed: June 9, 1975
    Date of Patent: December 7, 1976
    Assignee: Dana Corporation
    Inventors: Wayne A. Geraci, William C. Stoneman