Patents by Inventor Marc Bournat

Marc Bournat 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).

  • Patent number: 10211618
    Abstract: A method and a circuit for detecting an electric arc in an electric circuit supplied with AC current during a supply period includes measuring at least one input signal (S) among a current (I) and an input voltage (U) of the electric circuit, supplying a warning signal (A1) to indicate that an electric arc occurs when the input signal (S) is constant over at least one portion of the supply period, digitally sampling the input signal (S) during the measurement thereof according to predetermined levels and, to identify that the input signal (S) is constant, determining the frequency at which each level is reached by the input signal (S) over a predetermined time window, comparing the frequency of each level with a predetermined warning threshold, and issuing the warning signal if the frequency of at least one of the levels is higher than the warning threshold.
    Type: Grant
    Filed: February 3, 2015
    Date of Patent: February 19, 2019
    Assignees: LEACH INTERNATIONAL EUROPE SA, UNIVERSITE DE LORRAINE
    Inventors: Jonathan Andrea, Patrick Schweitzer, Serge Weber, Etienne Tisserand, Marc Bournat
  • Publication number: 20170170644
    Abstract: A method and a circuit for detecting an electric arc in an electric circuit supplied with AC current during a supply period includes measuring at least one input signal (S) among a current (I) and an input voltage (U) of the electric circuit, supplying a warning signal (A1) to indicate that an electric arc occurs when the input signal (S) is constant over at least one portion of the supply period, digitally sampling the input signal (S) during the measurement thereof according to predetermined levels and, to identify that the input signal (S) is constant, determining the frequency at which each level is reached by the input signal (S) over a predetermined time window, comparing the frequency of each level with a predetermined warning threshold, and issuing the warning signal if the frequency of at least one of the levels is higher than the warning threshold.
    Type: Application
    Filed: February 3, 2015
    Publication date: June 15, 2017
    Inventors: Jonathan Andrea, Patrick Schweitzer, Serge Weber, Etienne Tisserand, Marc Bournat