Patents by Inventor Jean-Paul Huot-Marchand

Jean-Paul Huot-Marchand 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).

  • Apparatus for reducing vibration on a ship
    Patent number: 6190217
    Abstract: An apparatus for reducing vibration on a ship with at least two drive shafts by determining and utilizing an optimum angular offset which corresponds to a minimum vibration level. The apparatus comprises a servo-control circuit for servo-controlling the angular difference between the two shafts to a reference value. A calibration circuit determines the optimum angular offset between the shafts corresponding to the minimum vibration level. A control circuit responds to a control signal by actuating in succession the calibration circuit and then the servo-control circuit, wherein the optimum angular offset is set to the reference value.
    Type: Grant
    Filed: April 15, 1999
    Date of Patent: February 20, 2001
    Assignee: Alstom Entreprise SA
    Inventors: Jean-Paul Huot-Marchand, Jean-Philippe Nicod