Patents by Inventor David BARRES

David BARRES 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).

  • COMBUSTION IGNITER CORD WITH ENHANCED POWER
    Publication number: 20250321086
    Abstract: A Combustion igniter cord with enhanced power. Combustion igniter cord for a propellant charge contained in the case of a cartridge, said igniter cord consisting of a core comprising a pyrotechnic material and surrounded by a sheath. The sheath consists of two concentric cylindrical tubes between which is arranged a free powder energetic material. Both tubes are made of an inert polymer material or contain an extruded energetic propellant powder material or one tube may be made of an inert polymer material and the other may contain an extruded energetic propellant powder material.
    Type: Application
    Filed: April 3, 2025
    Publication date: October 16, 2025
    Applicant: KNDS AMMO FRANCE
    Inventors: Guillaume ORSAT, Raphaëlle DUFAYE, David BARRES, Lucie THEILLIER
  • Cartridge with igniter cords
    Patent number: 11248884
    Abstract: The invention relates to a cartridge having a projectile secured to a case that contains a propelling charge and closed by a base. A device for igniting the propelling charge has at least two energetic igniter cords that extend between an initiating means secured to a rear part of the case and the projectile. In this cartridge, the cords are joined at their rear part so as to form a strand, and they are fastened by at least one fastening means secured to the cartridge, the strand being connected to the initiating means by a packing gland making it possible to immobilize the cords both radially and axially relative to the initiating means while keeping the cords tight between their fastening means and the initiating means.
    Type: Grant
    Filed: March 26, 2020
    Date of Patent: February 15, 2022
    Assignee: NEXTER MUNITIONS
    Inventors: Guillaume Orsat, Stéphane Cotet, David Barres, Lucie Theillier
  • CARTRIDGE WITH IGNITER CORDS
    Publication number: 20200378733
    Abstract: The invention relates to a cartridge having a projectile secured to a case that contains a propelling charge and closed by a base. A device for igniting the propelling charge has at least two energetic igniter cords that extend between an initiating means secured to a rear part of the case and the projectile. In this cartridge, the cords are joined at their rear part so as to form a strand, and they are fastened by at least one fastening means secured to the cartridge, the strand being connected to the initiating means by a packing gland making it possible to immobilize the cords both radially and axially relative to the initiating means while keeping the cords tight between their fastening means and the initiating means.
    Type: Application
    Filed: March 26, 2020
    Publication date: December 3, 2020
    Applicant: NEXTER MUNITIONS
    Inventors: Guillaume ORSAT, Stéphane COTET, David BARRES, Lucie THEILLIER