Patents by Inventor Jean-Pierre Eyschen

Jean-Pierre Eyschen 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).

  • Pulsed-arc welding process and device
    Patent number: 6723956
    Abstract: Process for the arc welding in pulsed mode of one or more workpieces made of carbon steel, stainless steel, aluminum or aluminum alloy, with the use of a gas shield, in which an electric arc welding torch is supplied with at least one consumable wire at a wire feed speed (Vwire) and the consumable wire is subjected to current pulses, in order to melt the end of the consumable wire in which, for a given pulse frequency, a wire feed speed (Fwire), a mean current (Imean) value and an rms current (Irms) value are chosen, so as to detach one drop of molten metal per current pulse and to obtain a low degree of spatter.
    Type: Grant
    Filed: December 21, 2001
    Date of Patent: April 20, 2004
    Assignees: L'Air Liquide - Societe Anonyme a Directoire et Conseil de Surveillance pour l'Etude Exploitation des Procedes Georges Claude, La Soudure Autogene Francaise
    Inventors: Francis Briand, Christophe Mas, Georges Caillibotte, Jean-Pierre Eyschen
  • Pulsed-arc welding process and device
    Publication number: 20020130117
    Abstract: Process for the arc welding in pulsed mode of one or more workpieces made of carbon steel, stainless steel, aluminum or aluminum alloy, with the use of a gas shield, in which an electric arc welding torch is supplied with at least one consumable wire at a wire feed speed (Vwire) and the consumable wire is subjected to current pulses, in order to melt the end of the consumable wire in which, for a given pulse frequency, a wire feed speed (Fwire), a mean current (Imean) value and an rms current (Irms) value are chosen, so as to detach one drop of molten metal per current pulse and to obtain a low degree of spatter.
    Type: Application
    Filed: December 21, 2001
    Publication date: September 19, 2002
    Applicant: L'Air Liquide, Societe Anonyme Pour L'Etude E
    Inventors: Francis Briand, Christophe Mas, Georges Caillibotte, Jean-Pierre Eyschen