Patents by Inventor Pierre-Yves Bonvin

Pierre-Yves Bonvin 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).

  • Capacitance controlling process
    Patent number: 7300611
    Abstract: Process for controlling the capacitance value (C1) of a tubular sheath (1) formed by extrusion of an insulation compound (2) on an electrical cable (3) in an extrusion head (4), a foaming agent (FA) being introduced in the insulation compound (2) in such a way as to improve the capacitance value (C1) of the tubular insulation sheath (1), this process being characterised in that: a predetermined amount of foaming agent (200) is used in such a way as to obtain a predetermined capacitance value (C1) for the tubular insulation sheath (1), and in order to control precisely the capacitance value (C1) of the tubular insulation sheath (1), a gas pressure (110) is applied on at least a portion of a face (100, 101) of the insulation compound (2) extruded by the extrusion head is (4), the value of the gas pressure (110) is changed in such a way as to control the capacitance value (C1) of the tubular insulation sheath (1).
    Type: Grant
    Filed: June 6, 2002
    Date of Patent: November 27, 2007
    Assignee: Maillefer SA
    Inventors: Pierre-Yves Bonvin, Giancarlo Evangelisti, Philippe Gerhard
  • Capacitance controlling process
    Publication number: 20040145857
    Abstract: Process for controlling the capacitance value (C1) of a tubular sheath (1) formed by extrusion of an insulation compound (2) on an electrical cable (3) in an extrusion head (4),
    Type: Application
    Filed: November 24, 2003
    Publication date: July 29, 2004
    Inventors: Pierre-Yves Bonvin, Giancarlo Evangelisti, Philippe Gerhard