Patents by Inventor Ralf Siebelds

Ralf Siebelds 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).

  • Device for activation and monitoring of a light-signal system for railway traffic
    Publication number: 20070228223
    Abstract: A method for operating the signal installation of a railroad trackage block, whereby at least one first local control unit and one second local control unit are dedicated to the signal installation. Each local control unit is capable of transmitting at least one control signal so that the signal installation is operated in a first functional mode when at least one control unit transmits the said minimum of one control signal, the signal installation is operated in a second functional mode when the first and the second control units transmit a control signal independent of each other, and the signal installation is operated in the first functional mode when the control signal of the first control unit and that of the second control unit are mutually inconsistent (malfunction). The method and the associated device advantageously permit the safe operation of the signal installation of a railroad block.
    Type: Application
    Filed: March 29, 2007
    Publication date: October 4, 2007
    Inventors: Gotz Dittmar, Walter Pyschny, Ralf Siebelds