Patents by Inventor Pascal Dubos

Pascal Dubos 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).

  • Timepiece made from rose gold alloy
    Patent number: 10514661
    Abstract: A timepiece or piece of jewelry includes an alloy containing at least 750 wt.-‰ gold, characterized in that the alloy comprises at least 200‰ copper, 19‰-35‰ palladium and 1‰-16‰ indium. Optionally, the alloy may contain at least one grain refining element, and also optionally, the alloy may contain at least one element selected from the group consisting of Ca, Sr, Si, Zr, and Mg.
    Type: Grant
    Filed: February 6, 2014
    Date of Patent: December 24, 2019
    Assignee: ROLEX SA
    Inventors: Pascal Dubos, Jean-François Ricard
  • TIMEPIECE MADE FROM ROSE GOLD ALLOY
    Publication number: 20160306327
    Abstract: The invention relates to a timepiece or piece of jewellery comprising an alloy containing at least 750 wt.-‰ gold, characterised in that the alloy comprises at least 200‰ copper, 4‰-35‰ palladium and 1‰-16‰ indium.
    Type: Application
    Filed: February 6, 2014
    Publication date: October 20, 2016
    Applicant: ROLEX SA
    Inventors: Pascal Dubos, Jean-Francois Ricard
  • TIMEPIECE MADE FROM ROSE GOLD ALLOY
    Publication number: 20150378311
    Abstract: The invention relates to a timepiece or piece of jeweler comprising an alloy containing at least 750 wt.-% gold, characterised in that the alloy comprises at least 200% copper, 4%-35% palladium and 1%-16% indium.
    Type: Application
    Filed: February 6, 2014
    Publication date: December 31, 2015
    Applicant: ROLEX SA
    Inventors: Pascal Dubos, Jean-François Ricard
  • TIMEPIECE MADE FROM ROSE GOLD ALLOY
    Publication number: 20150368757
    Abstract: The invention relates to a timepiece or piece of jewelry comprising an alloy containing at least 750 wt.-‰ gold, characterised in that the alloy also contains copper, palladium and indium, the sum of the concentrations of palladium and indium being less than or equal to 35‰, or less than or equal to 30‰, or even less than or equal to 25‰, and/or the sum of the concentrations of palladium and indium being between 15‰ and 35‰, or between 20‰ and 35‰, or even between 25‰ and 33‰.
    Type: Application
    Filed: February 6, 2014
    Publication date: December 24, 2015
    Applicant: ROLEX SA
    Inventors: Pascal Dubos, Jean-François Ricard
  • TIMEPIECE MADE FROM ROSE GOLD ALLOY
    Publication number: 20150368756
    Abstract: The invention relates to a timepiece or piece of jewelry comprising an alloy containing at least 750 wt.-‰ gold, characterised in that the alloy comprises copper, calcium at a concentration of less than or equal to 10‰ or 7‰ or even 5‰, and/or silicon at a concentration of less than or equal to 2‰ or less than or equal to 0.5‰.
    Type: Application
    Filed: February 6, 2014
    Publication date: December 24, 2015
    Applicant: ROLEX SA
    Inventors: Pascal Dubos, Jean-François Ricard
  • Device for the dynamic measurement of the torque of a self-synchronous motor and device for the servo-control of a self-synchronous motor using this device
    Patent number: 5059878
    Abstract: The device for the dynamic measurement of the torque Ci of a polyphase self-synchronous motor comprises a sensor of the electrical angle between one of the phases and the axis perpedicular to the magnetic moment (APMM), circuits for the computation of the cosines of the angles (A, A-120.degree., A+120.degree.) between each phase and the APMM, sensors of current on each phase, and means to compute the torque Ci by application of the formula:Ci=k[i8.cos A+i2.cos (A+120.degree.)+i3.cos (A+120.degree.
    Type: Grant
    Filed: June 28, 1990
    Date of Patent: October 22, 1991
    Assignee: Thomson-CSF
    Inventors: Vianney Bardelang, Jacques Coeuillet, Pascal Dubos