Patents by Inventor Jean-Francois Pierrot

Jean-Francois Pierrot 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).

  • Plasma torch incorporating electrodes separated by an air gap and squib incorporating such a torch
    Patent number: 6740841
    Abstract: A plasma torch including at least two electrodes separated by an insulating cylindrical case having a void, wherein the electrodes are separated by a distance (D) for forming an igniting arc therebetween when the electrodes are connected to a voltage, the distance (D) and the voltage being selected to form substantially a 1 Megavolt/meter electrical field between the electrodes, for forming an arc and causing plasma to be generated from the plasma generating material.
    Type: Grant
    Filed: November 1, 2001
    Date of Patent: May 25, 2004
    Assignee: Giat Industries
    Inventors: Luc Brunet, Jean Mary Lombard, Jean Francois Pierrot, Jean Luc Taillandier
  • Plasma torch incorporating a reactive ignition tube and igniter squib integrating such a torch
    Patent number: 6703580
    Abstract: The invention relates to a plasma torch (1) comprising at least two electrodes (7, 8) separated by a cylindrical insulating case (6) delimiting an internal volume, said electrodes connected by a conductive ignition fuse (11) placed in the internal volume. This torch is characterized in that the fuse (11) comprises at least one conductive material associated with at least one energetic material or one able to react with the conductive material. Application to the ignition of the propellant charge of a munition.
    Type: Grant
    Filed: November 1, 2001
    Date of Patent: March 9, 2004
    Assignee: Giat Industries
    Inventors: Luc Brunet, Jean Mary Lombard, Jean Francois Pierrot, Jean Luc Taillandier
  • Ignition device for a propellant charge
    Patent number: 6691621
    Abstract: A propellant charge ignition device having one or more ignition means and incorporating one or more diffuser tube(s) extending through a part of the propellant charge. The structure permits a flame generated by the ignition means to be guided up to a propellant charge receiver zone. There is also disclosed a propellant charge incorporating one or more block(s) of agglomerated propellant powder, the block having at least one closed-ended ignition channel for receiving a diffuser tube of the propellant charge ignition device.
    Type: Grant
    Filed: July 3, 2002
    Date of Patent: February 17, 2004
    Assignee: Giat Industries
    Inventors: Jean-Francois Pierrot, Jean-Luc Taillandier
  • Base for ammunition intended to receive an electrical igniter squib
    Patent number: 6644204
    Abstract: An ammunition base with an electrical igniter located in an axial bore within a cylindrical base, wherein the base is made of a metallic material coated with an electrically insulating material and has at least one non-insulated conductive area constituted by a ring-shaped bearing area of a shoulder of the base or by at least one non-insulated conductive ring crimped into a housing arranged in the base.
    Type: Grant
    Filed: May 15, 2002
    Date of Patent: November 11, 2003
    Assignee: Giat Industries
    Inventors: Jean François Pierrot, Jean Luc Taillandier
  • Ignition device for a propellant charge
    Publication number: 20030005847
    Abstract: A propellant charge ignition device having one or more ignition means and incorporating one or more diffuser tube(s) extending through a part of the propellant charge. The structure permits a flame generated by the ignition means to be guided up to a propellant charge receiver zone. There is also disclosed a propellant charge incorporating one or more block(s) of agglomerated propellant powder, the block having at least one closed-ended ignition channel for receiving a diffuser tube of the propellant charge ignition device.
    Type: Application
    Filed: July 3, 2002
    Publication date: January 9, 2003
    Applicant: Gait Industries
    Inventors: Jean-Francois Pierrot, Jean-Luc Taillandier
  • Base for ammunition intended to receive an electrical igniter squib
    Publication number: 20020170455
    Abstract: An ammunition base intended to receive an electrical igniter arranged in an axial bore, said base wherein it is made of a metallic material coated with an insulating material and in that it incorporates at least one non-insulated conductive area constituted by a ring-shaped bearing area of a shoulder of the base or by at least one non-insulated conductive ring crimped into a housing arranged in the base.
    Type: Application
    Filed: May 15, 2002
    Publication date: November 21, 2002
    Applicant: GIAT Industries
    Inventors: Jean Francois Pierrot, Jean Luc Taillandier
  • Plasma torch incorporating a reactive ignition tube and igniter squib integrating such a torch
    Publication number: 20020157559
    Abstract: The invention relates to a plasma torch (1) comprising at least two electrodes (7, 8) separated by a cylindrical insulating case (6) delimiting an internal volume, said electrodes connected by a conductive ignition fuse (11) placed in the internal volume. This torch is characterized in that the fuse (11) comprises at least one conductive material associated with at least one energetic material or one able to react with the conductive material.
    Type: Application
    Filed: November 1, 2001
    Publication date: October 31, 2002
    Inventors: Luc Brunet, Jean Mary Lombard, Jean Francois Pierrot, Jean Luc Taillandier
  • Plasma torch comprising electrodes separated by an air gap and igniter incorporating same
    Publication number: 20020134767
    Abstract: The invention relates to plasma torch (1) comprising at least two electrodes (7, 8) separated by an insulating cylindrical case (6) delimiting an inner volume, said torch wherein the electrodes (7, 8) are separated by a sufficiently small distance (D) for an igniting arc to appear between the electrodes (7, 8) when a serviceable voltage supplied by a generator (19) is applied between them.
    Type: Application
    Filed: November 1, 2001
    Publication date: September 26, 2002
    Inventors: Luc Brunet, Jean Mary Lombard, Jean Francois Pierrot, Jean Luc Taillandier