Patents by Inventor Willi Roosen

Willi Roosen 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).

  • Patent number: 4015541
    Abstract: A rail vehicle arrangement in which a load supporting bridge boom has a pair of trucks in spaced relation therebeneath and springs supporting the booms on the trucks. The trucks have no bogie pin connection with the bridge boom and the transmission of pulling and braking loads are transmitted between the bridge boom and the trucks by steering bars in the central plane of the bridge boom swivelly connected at one end to the bridge boom and swivelly connected at the other end to a respective truck.
    Type: Grant
    Filed: July 16, 1975
    Date of Patent: April 5, 1977
    Assignee: Rheinstahl AG
    Inventor: Willi Roosen