Patents by Inventor Gerardus P. T. M. Van Santvoort

Gerardus P. T. M. Van Santvoort 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).

  • Railway track structure and a method of building such structure and bags filled with ballast material
    Patent number: 4679731
    Abstract: The invention relates to a railway track structure of which the rails are fastened to sleepers. Under each sleeper there are provided one or more bags filled with ballast material in the form of pebbles, broken stone and/or sand. The invention also comprises a method of building such a railway track structure.
    Type: Grant
    Filed: January 23, 1986
    Date of Patent: July 14, 1987
    Assignee: Akzo nv
    Inventors: Karl Klugar, Gerardus P. T. M. Van Santvoort