Patents by Inventor Frederic Roque

Frederic Roque 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).

  • Device for generating radiofrequency plasma
    Patent number: 8656897
    Abstract: A device for generating a radiofrequency plasma, that includes a voltage generator, and at least one ignition assembly that includes an ignition plug and a switch provided between a supply terminal of the plug and an output of the generator adapted for electrically connecting the output of the voltage generator to the plug upon reception of a control signal, and an electronic control unit generating the control signal. The electronic control unit measures values representative of evolution in time of the output voltage of the generator. The device further includes a mechanism varying the voltage and/or the frequency of the electric current applied to the supply terminal of the plug based on measured values. The evolution of the generator output voltage is representative of the condition of the plug (new or used).
    Type: Grant
    Filed: July 30, 2008
    Date of Patent: February 25, 2014
    Assignee: Renault S.A.S.
    Inventors: Sebastien Haution, Thierry Prunier, Frederic Roque, Yorick Duchaussoy, Franck Deloraine
  • DEVICE FOR GENERATING RADIOFREQUENCY PLASMA
    Publication number: 20110163673
    Abstract: A device for generating a radiofrequency plasma, that includes a voltage generator, and at least one ignition assembly that includes an ignition plug and a switch provided between a supply terminal of the plug and an output of the generator adapted for electrically connecting the output of the voltage generator to the plug upon reception of a control signal, and an electronic control unit generating the control signal. The electronic control unit measures values representative of evolution in time of the output voltage of the generator. The device further includes a mechanism varying the voltage and/or the frequency of the electric current applied to the supply terminal of the plug based on measured values. The evolution of the generator output voltage is representative of the condition of the plug (new or used).
    Type: Application
    Filed: July 30, 2008
    Publication date: July 7, 2011
    Applicant: RENAULT S.A.S.
    Inventors: Sebastien Haution, Thierry Prunier, Frederic Roque, Yorick Duchaussoy, Franck Deloraine