Patents by Inventor Laurent LAGUERRE

Laurent LAGUERRE 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 detecting a defect in a metal wire of a set of metal wires, in particular for an anchoring area of a civil engineering structure
    Patent number: 10816511
    Abstract: The invention relates to a method for detecting defects of at least one metal wire of a set of metal wires, in particular in a cable, the method including: a step of emitting a high-frequency ultrasound signal around a so-called specific frequency in the metal wire; a step of reflecting said ultrasound signal in the metal wire; and a step of receiving the reflected ultrasound signal. The emitted ultrasound signal enables the energisation of at least one high-frequency wave capable of propagating in a longitudinal direction of the metal wire and having a phase velocity that is slightly higher than a compression volume wave velocity in the metal from which the metal wire is made.
    Type: Grant
    Filed: March 24, 2016
    Date of Patent: October 27, 2020
    Assignees: SOLETANCHE FREYSSINET, UNIVERSITE GUSTAVE EIFFEL
    Inventors: Laurent Laguerre, Olivier Durand, Remi Colin
  • METHOD FOR DETECTING A DEFECT IN A METAL WIRE OF A SET OF METAL WIRES, IN PARTICULAR FOR AN ANCHORING AREA OF A CIVIL ENGINEERING STRUCTURE
    Publication number: 20180059063
    Abstract: The invention relates to a method for detecting defects of at least one metal wire of a set of metal wires, in particular in a cable, the method including: a step of emitting a high-frequency ultrasound signal around a so-called specific frequency in the metal wire; a step of reflecting said ultrasound signal in the metal wire; and a step of receiving the reflected ultrasound signal. The emitted ultrasound signal enables the energisation of at least one high-frequency wave capable of propagating in a longitudinal direction of the metal wire and having a phase velocity that is slightly higher than a compression volume wave velocity in the metal from which the metal wire is made.
    Type: Application
    Filed: March 24, 2016
    Publication date: March 1, 2018
    Applicant: INSTITUT FRANCAIS DES SCIENCES ET TECHNOLOGIES DES TRANSPORTS, DE L'AMENAGEMENT ET DES RESEAUX
    Inventors: Laurent LAGUERRE, Olivier DURAND, Remi COLIN