Patents by Inventor Christian Prenez

Christian Prenez 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 producing friction by indenting
    Patent number: 11507021
    Abstract: A method for producing a tube for a friction system comprising the tube and an arbor, in particular a tube provided to rub around a pinion arbor, the method comprising a first stage of plastic deformation of the tube, in particular a first stage of plastic deformation of the tube that is controlled in deformation, followed by a second stage of hardening of the tube, in particular hardening by heat treatment.
    Type: Grant
    Filed: January 31, 2022
    Date of Patent: November 22, 2022
    Assignee: ROLEX SA
    Inventors: Jérôme Javet, Christian Prenez
  • METHOD FOR PRODUCING FRICTION BY INDENTING
    Publication number: 20220155726
    Abstract: A method for producing a tube for a friction system comprising the tube and an arbor, in particular a tube provided to rub around a pinion arbor, the method comprising a first stage of plastic deformation of the tube, in particular a first stage of plastic deformation of the tube that is controlled in deformation, followed by a second stage of hardening of the tube, in particular hardening by heat treatment.
    Type: Application
    Filed: January 31, 2022
    Publication date: May 19, 2022
    Applicant: ROLEX SA
    Inventors: Jérôme Javet, Christian Prenez
  • Method for producing friction by indenting
    Patent number: 11256216
    Abstract: A method for producing a tube (1) for a friction system comprising the tube (1) and an arbor (2), in particular a tube provided to rub around a pinion arbor, the method comprising a first stage of plastic deformation of the tube, in particular a first stage of plastic deformation of the tube that is controlled in deformation, followed by a second stage of hardening of the tube, in particular hardening by heat treatment.
    Type: Grant
    Filed: August 27, 2019
    Date of Patent: February 22, 2022
    Assignee: ROLEX SA
    Inventors: Jérôme Javet, Christian Prenez
  • METHOD FOR PRODUCING FRICTION BY INDENTING
    Publication number: 20200073328
    Abstract: A method for producing a tube (1) for a friction system comprising the tube (1) and an arbor (2), in particular a tube provided to rub around a pinion arbor, the method comprising a first stage of plastic deformation of the tube, in particular a first stage of plastic deformation of the tube that is controlled in deformation, followed by a second stage of hardening of the tube, in particular hardening by heat treatment.
    Type: Application
    Filed: August 27, 2019
    Publication date: March 5, 2020
    Applicant: ROLEX SA
    Inventors: Jérôme Javet, Christian Prenez