Patents by Inventor Ladimir Prince

Ladimir Prince 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).

  • Electrical circuit for transmitting state information, in particular concerning some member in railway rolling-stock, and an electrical system incorporating such a circuit
    Patent number: 6483431
    Abstract: An electrical circuit for transmitting an item of information relating to the state of a parameter or of a piece of equipment, in particular for application in the railway field. The circuit includes a device for regulating the current flowing through the switch, including a switch device for switching over connections and having an inductive energy storage device and a capacitive energy storage device which, under steady conditions, alternate between being a device for storing and a device for restoring a fraction of the energy of the electrical circuit depending on the alternating state of the connections, as defined by the switch device. The invention also provides an electrical system incorporating such a circuit.
    Type: Grant
    Filed: March 26, 2001
    Date of Patent: November 19, 2002
    Assignee: Alstom
    Inventors: Michel Bert, Ladimir Prince
  • Electrical circuit for transmitting state information, in particular concerning some member in railway rolling-stock, and an electrical system incorporating such a circuit
    Publication number: 20010026227
    Abstract: An electrical circuit for transmitting an item of information relating to the state of a parameter or of a piece of equipment, in particular for application in the railway field. The circuit comprises means for regulating the current flowing through the switch, comprising switch means for switching over connections and having inductive energy storage means and capacitive energy storage means which, under steady conditions, alternate between being means for storing and means for restoring a fraction of the energy of said electrical circuit depending on the alternating state of said connections, as defined by the switch means. The invention also provides an electrical system incorporating such a circuit.
    Type: Application
    Filed: March 26, 2001
    Publication date: October 4, 2001
    Inventors: Michel Bert, Ladimir Prince