Patents by Inventor Vincent Puech

Vincent Puech 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: 9502214
    Abstract: An apparatus is provided that performs continuous cleaning of a surface of a grounded material which is coated with an organic substance. The apparatus includes a plurality of electrodes covered with a dielectric and disposed along the surface of the material. The electrodes are connected to a high-voltage generator using a MOS power transistor connected to a step up transformer to convert low-voltage pulses generated from a low-voltage power supply into high-voltage pulses. The apparatus is configured to provide a pulsed electric field wherein the maximum voltage of the positive pulses U+ is greater than the arc-striking voltage Ua, and the maximum absolute value of the voltage of the negative pulses U? is less than the striking voltage Ua.
    Type: Grant
    Filed: June 16, 2009
    Date of Patent: November 22, 2016
    Assignee: USINOR
    Inventors: Daniel Chaleix, Patrick Choquet, Gerard Baravian, Bernard Lacour, Vincent Puech
  • Patent number: 7662237
    Abstract: A method for the continuous cleaning of the surface of a material (2) which is coated with an organic substance. Steps of the method are: introducing the material (2) into a treatment area which is supplied with a gas stream containing oxygen; earthing the material (2); and generating a plasma by imposing an electric field between the surface of the material (2) and at least one dielectric-covered electrode (3), the electric field being pulsed and providing a succession of positive and negative voltage pulses in relation to the material (2). Moreover, the maximum voltage of the positive pulses U+ is greater than the arc-striking voltage Ua, and the maximum absolute value of the voltage of the negative pulses U? is less than the striking voltage Ua. Also, a generator and a device which are used to carry out this method.
    Type: Grant
    Filed: February 19, 2003
    Date of Patent: February 16, 2010
    Assignee: USINOR
    Inventors: Daniel Chaleix, Patrick Choquet, GĂ©rard Baravian, Bernard Lacour, Vincent Puech
  • Publication number: 20090255809
    Abstract: A method for the continuous cleaning of the surface of a material (2) which is coated with an organic substance. Steps of the method are: introducing the material (2) into a treatment area which is supplied with a gas stream containing oxygen; earthing the material (2); and generating a plasma by imposing an electric field between the surface of the material (2) and at least one dielectric-covered electrode (3), the electric field being pulsed and providing a succession of positive and negative voltage pulses in relation to the material (2). Moreover, the maximum voltage of the positive pulses U+ is greater than the arc-striking voltage Ua, and the maximum absolute value of the voltage of the negative pulses U? is less than the striking voltage Ua+. Also, a generator and a device which are used to carry out this method.
    Type: Application
    Filed: June 16, 2009
    Publication date: October 15, 2009
    Applicant: USINOR
    Inventors: Daniel CHALEIX, Patrick Choquet, Gerard Baravian, Bernard Lacour, Vincent Puech
  • Publication number: 20050145174
    Abstract: The invention relates to a method for the continuous cleaning of the surface of a material (2) which is coated with an organic substance. The inventive method comprises the following steps, consisting in: introducing the material (2) into a treatment area which is supplied with a gas stream containing oxygen; earthing the material (2); and generating a plasma by imposing an electric field between the surface of the material (2) and at least one dielectric-covered electrode (3), said electric field being pulsed and comprising a succession of positive and negative voltage pulses in relation to the material (2). Moreover, the maximum voltage of the positive pulses U+ is greater than the arc striking voltage Ua and the maximum absolute value voltage of the negative pulses U? is less than the striking voltage Ua. The invention also relates to a generator and a device which are used to carry out said method.
    Type: Application
    Filed: February 19, 2003
    Publication date: July 7, 2005
    Inventors: Daniel Chaleix, Patrick Choquet, Gerard Baravian, Bernard Lacour, Vincent Puech