Patents by Inventor Philippe DARNIS

Philippe DARNIS 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).

  • Method for determining components of a mechanical action torsor at the guiding point of a cutting blade for a cutting machine
    Patent number: 12269185
    Abstract: The invention relates to a method for determining components of a mechanical action torsor at the guiding point of a cutting blade (L) for a cutting machine, the blade being guided in a presser foot (P) of a cutting head of the machine, the method comprising the positioning of a five-component dynamometer on the presser foot, the dynamometer comprising a plurality of sensors for determining a frontal force, a lateral force, a rolling moment, a pitching moment and a yawing moment of the cutting blade, the establishment of a calibration matrix of the dynamometer, and the determination of the forces in three dimensions to which the cutting blade is subjected, on the basis of the measurements obtained by the sensors and the calibration matrix.
    Type: Grant
    Filed: March 23, 2021
    Date of Patent: April 8, 2025
    Assignees: LECTRA, AMVALOR, UNIVERSITE DE BORDEAUX, INSTITUT POLYTECHNIQUE DE BORDEAUX, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, ECOLE NATIONALE SUPERIEURE D'ARTS ET METIERS (ENSAM)
    Inventors: Didier Chabirand-Garconnet, Olivier Cahuc, Quentin Cosson-Coche, Philippe Darnis, Raynald Laheurte, Denis Teissandier
  • METHOD FOR DETERMINING COMPONENTS OF A MECHANICAL ACTION TORSOR AT THE GUIDING POINT OF A CUTTING BLADE FOR A CUTTING MACHINE
    Publication number: 20230226712
    Abstract: A method for determining components of a mechanical action torsor at the guiding point of a cutting blade for a cutting machine, the blade being guided in a presser foot of a cutting head of the machine, such that the method includes the positioning of a five-component dynamometer on the presser foot, the dynamometer comprising a plurality of sensors for determining a frontal force, a lateral force, a rolling moment, a pitching moment and a yawing moment of the cutting blade, the establishment of a calibration matrix of the dynamometer, and the determination of the forces in three dimensions to which the cutting blade is subjected, on the basis of the measurements obtained by the sensors and the calibration matrix.
    Type: Application
    Filed: March 23, 2021
    Publication date: July 20, 2023
    Inventors: Didier CHABIRAND-GARCONNET, Olivier CAHUC, Quentin COSSON-COCHE, Philippe DARNIS, Raynald LAHEURTE, Denis TEISSANDIER