Patents by Inventor Guillaume Keltz

Guillaume Keltz 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).

  • Publication number: 20230348008
    Abstract: A cycle driving device has a torque sensor, a crankset axle or a hub connected to a plate by a coupling, and a driving and measuring member having a first section secured in rotation with the crankset axle or hub, and a second section connected to the plate. A magnetic field source is supported by one of the sections. The coupling member incorporates a torque detection device. The first and second sections cooperate through an elastically deformable element. The torque detection device comprises a fixed magneto-sensitive element that measures a magnetic field according to the relative angular position of the first and second sections, and is capable of converting the magnetic field into an electrical signal. The magnetic field measurement is performed at a single axial position in the periphery of the first and second sections independently of the rotation of the crankset axle or hub.
    Type: Application
    Filed: July 16, 2021
    Publication date: November 2, 2023
    Inventor: Guillaume Keltz
  • Patent number: 10726984
    Abstract: A user input device including a rotary input control having a wheel and an electropermanent magnet (EPM) assembly, the EPM assembly comprising a permanent magnet and a magnetizing assembly configured to control a polarization of the permanent magnet to transition the electropermanent magnet assembly from a first state in which the EPM assembly applies a first resistance profile to the wheel and a second state in which the EPM assembly applies a second resistance profile to the wheel. The EPM assembly includes magnetically conductive members positioned at opposing ends of the electropermanent magnet, each magnetically conductive member comprising a respective plurality of teeth protruding radially toward the wheel, and each of the magnetically conductive members comprising a respective magnetic pole depending on a polarized state of the EPM assembly.
    Type: Grant
    Filed: May 31, 2019
    Date of Patent: July 28, 2020
    Assignee: Logitech Europe S.A.
    Inventors: Guillaume Keltz, Guillaume Loussert, Corentin Le Denmat, Jean-Daniel Alzingre
  • Patent number: 10550603
    Abstract: A locking device includes a mobile locking member, movement of which can be prevented by a blocking member interacting with a motorized lever, where the motorized lever is capable of rotational movement about an axis with respect to the supporting structure, the centre of gravity of the lever lying on the axis, the lever being kept in a determined stable position and without rigid mechanical contact of the lever with the supporting structure apart from its axis of rotation.
    Type: Grant
    Filed: July 30, 2013
    Date of Patent: February 4, 2020
    Assignee: COGELEC
    Inventors: Jean-Daniel Alzingre, Guillaume Keltz
  • Publication number: 20200005977
    Abstract: A user input device including a rotary input control having a wheel and an electropermanent magnet (EPM) assembly, the EPM assembly comprising a permanent magnet and a magnetizing assembly configured to control a polarization of the permanent magnet to transition the electropermanent magnet assembly from a first state in which the EPM assembly applies a first resistance profile to the wheel and a second state in which the EPM assembly applies a second resistance profile to the wheel. The EPM assembly includes magnetically conductive members positioned at opposing ends of the electropermanent magnet, each magnetically conductive member comprising a respective plurality of teeth protruding radially toward the wheel, and each of the magnetically conductive members comprising a respective magnetic pole depending on a polarized state of the EPM assembly.
    Type: Application
    Filed: May 31, 2019
    Publication date: January 2, 2020
    Inventors: Guillaume Keltz, Guillaume Loussert, Corentin Le Denmat, Jean-Daniel Alzingre
  • Publication number: 20150225983
    Abstract: A locking device includes a mobile locking member, movement of which can be prevented by a blocking member interacting with a motorized lever, where the motorized lever is capable of rotational movement about an axis with respect to the supporting structure, the centre of gravity of the lever lying on the axis, the lever being kept in a determined stable position and without rigid mechanical contact of the lever with the supporting structure apart from its axis of rotation.
    Type: Application
    Filed: July 30, 2013
    Publication date: August 13, 2015
    Applicant: MOVING MAGNET TECHNOLOGIES (MMT)
    Inventors: Jean-Daniel Alzingre, Guillaume Keltz