Patents by Inventor Ferdinand L. Tharel

Ferdinand L. Tharel 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).

  • Snubbed railway vehicle bogie
    Patent number: 3952669
    Abstract: A railway vehicle bogie has a primary stage suspension between the undercarriage and the axle boxes consisting of resilient chevron blocks having high vertical flexibility and transverse rigidity, and a second stage suspension between the undercarriage and the vehicle having reduced vertical flexibility and high horizontal flexibility, the secondary suspension being formed only of vertically superposed resilient blocks operating in compression and having their axis of compression inclined with respect to the vehicle body, the blocks being distributed about an imaginary centre of pivotal movement of the bogey with respect to the vehicle body.
    Type: Grant
    Filed: April 23, 1973
    Date of Patent: April 27, 1976
    Inventors: Andre E. Mauzin, Pierre P. Truffart, Ferdinand L. Tharel