Patents by Inventor David Albert Royle

David Albert Royle 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).

  • Publication number: 20050034646
    Abstract: The arrangement has at least one retractable steered wheel, and comprises: at least one wheel rotatbly mounted on a steerable leg member; said leg member being pivotably mounted on pivot means which is pivotable around a substantially horizontal axis relative to a hull of said amphibious vehicle, said axis also being transverse to a longitudinal direction of travel of said hull; a steering arm member operably connected to said steerable leg member; and means to raise said wheel by pivoting said wheel about said horizontal axis; wherein an end of said steering arm member remote from said steerable leg member is closely adjacent said horizontal axis and operably connected to steering arm moving means.
    Type: Application
    Filed: October 9, 2002
    Publication date: February 17, 2005
    Inventor: David Albert Royle