Patents by Inventor Mathieu ROGNANT

Mathieu ROGNANT 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).

  • Motorized device with reciprocating motion of a locomotion member and associated control method
    Patent number: 10633089
    Abstract: A motorized device capable of moving in a fluid and including one or more locomotor systems, each having at least one drive assembly linked to at least one locomotion member and a motor controlled by a voltage. The frequency of a reciprocating motion of the drive assembly matches the resonant frequency of the locomotion member linked to a non-movable portion by at least one prestrained elastic member. The instantaneous amplitude of the reciprocating motion of the drive assembly is adjusted to control the average position and the maximum amplitude of the reciprocating motion of the locomotion member. The drive assembly includes at least one speed reducer for reducing the speed of rotation of the motor. When the motor is operating at its maximum mechanical power, the speed of rotation transmitted to the at least one locomotion member is reduced to match the resonance frequency.
    Type: Grant
    Filed: May 11, 2016
    Date of Patent: April 28, 2020
    Assignee: OFFICE NATIONAL D'ÉTUDES ET DE RECHERCHES AÉROSPATIALES
    Inventors: Thierry Le Moing, Mathieu Rognant
  • MOTORIZED DEVICE WITH RECIPROCATING MOTION OF A LOCOMOTION MEMBER AND ASSOCIATED CONTROL METHOD
    Publication number: 20180155020
    Abstract: Some embodiments relate to a motorized device capable of moving in a fluid and including one or more locomotor systems, each having at least one drive assembly linked to at least one locomotion member and a motor controlled by a voltage. The frequency of a reciprocating motion of the drive assembly matches the resonant frequency of the locomotion member linked to a non-movable portion by at least one prestrained elastic member. The instantaneous amplitude of the reciprocating motion of the drive assembly is adjusted to control the average position and the maximum amplitude of the reciprocating motion of the locomotion member. The Drive assembly includes at least one speed reducer for reducing the speed of rotation of the motor. When the motor is operating at is maximum mechanical power, the speed of rotation transmitted to the at least one locomotion member is reduced to match the resonance frequency.
    Type: Application
    Filed: May 11, 2016
    Publication date: June 7, 2018
    Inventors: Thierry LE MOING, Mathieu ROGNANT