Patents by Inventor Theodor Hammen

Theodor Hammen 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).

  • Air springing bogie traction link suspension
    Patent number: 4357879
    Abstract: A bolsterless bogie for rail vehicles has at least one link which is directly connected to the bogie frame and the rail vehicle center pivot by means of wear-free rubber joints and connecting pins. Rubber buffers limit the transverse motion between center pivot and bogie frame; vertical forces are transmitted by air-spring bellows arranged in the vehicle center plane between the underframe and the bogie side sill, and stops effective in the travel direction are provided between center pivot and bogie frame.
    Type: Grant
    Filed: November 20, 1979
    Date of Patent: November 9, 1982
    Assignee: MAN Maschinenfabrik Augsburg-Nuernberg AG
    Inventors: Sandor Mohacsi, Theodor Hammen, Walter Schmid