Patents by Inventor Sylvain Jayet

Sylvain Jayet 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: 11650035
    Abstract: A projectile includes a hollow body carrying a payload formed of inert sub-projectiles that can be dispersed on trajectory contained in a cup including a piston closing one of its ends, the body at its rear part with a base housing a pyrotechnic charge separated from the sub-projectiles by the piston, which can translate with respect to the body of the projectile to push the cup and the sub-projectiles axially out of the body. The cup is formed of independent sectors. The piston is secured to the sectors when contained in the body and the cup is secured to the body by a connecting apparatus weakened to break under the force of the piston pushed by the gases generated by the pyrotechnic charge. An ogive is secured to the cup by a securing apparatus that is coaxial with the longitudinal axis of the projectile and locked by the sectors.
    Type: Grant
    Filed: December 1, 2021
    Date of Patent: May 16, 2023
    Assignee: NEXTER MUNITIONS
    Inventors: Anthony Forge, Sylvain Jayet, Nicolas Caillaut
  • Publication number: 20220170724
    Abstract: A projectile includes a hollow body carrying a payload formed of inert sub-projectiles that can be dispersed on trajectory contained in a cup including a piston closing one of its ends, the body at its rear part with a base housing a pyrotechnic charge separated from the sub-projectiles by the piston, which can translate with respect to the body of the projectile to push the cup and the sub-projectiles axially out of the body. The cup is formed of independent sectors. The piston is secured to the sectors when contained in the body and the cup is secured to the body by a connecting apparatus weakened to break under the force of the piston pushed by the gases generated by the pyrotechnic charge. An ogive is secured to the cup by a securing apparatus that is coaxial with the longitudinal axis of the projectile and locked by the sectors.
    Type: Application
    Filed: December 1, 2021
    Publication date: June 2, 2022
    Applicant: NEXTER MUNITIONS
    Inventors: Anthony FORGE, Sylvain JAYET, Nicolas CAILLAUT
  • Patent number: 10041775
    Abstract: A safety and arming device for an instant impact point fuse for a gyratory projectile and a fuse equipped with such a device. The device includes a rotor carrying a primer held in a safe, non-aligned position with respect to a striker by a sleeve pressed against a flat spot of the rotor. The device also includes a flyweight that, when subjected to the longitudinal acceleration resulting from the shot, exerts a pushing force on a first end of at least one lever, the second end of the at least one lever being located below a collar of the sleeve. The pushing force of the flyweight causes the lever(s) to pivot about a pivot point, the pivoting of the lever then separates the sleeve from the flat spot of the rotor permanently, releasing the rotor.
    Type: Grant
    Filed: July 22, 2016
    Date of Patent: August 7, 2018
    Assignee: NEXTER MUNITIONS
    Inventors: Nicolas Caillaut, Sylvain Jayet
  • Publication number: 20170138714
    Abstract: A safety and arming device for an instant impact point fuse for a gyratory projectile and a fuse equipped with such a device. The device includes a rotor carrying a primer held in a safe, non-aligned position with respect to a striker by a sleeve pressed against a flat spot of the rotor. The device also includes a flyweight that, when subjected to the longitudinal acceleration resulting from the shot, exerts a pushing force on a first end of at least one lever, the second end of the at least one lever being located below a collar of the sleeve. The pushing force of the flyweight causes the lever(s) to pivot about a pivot point, the pivoting of the lever then separates the sleeve from the flat spot of the rotor permanently, releasing the rotor.
    Type: Application
    Filed: July 22, 2016
    Publication date: May 18, 2017
    Inventors: Nicolas CAILLAUT, Sylvain JAYET
  • Patent number: 7353755
    Abstract: A deconfinement device for the casing of a piece of ammunition enclosing an explosive load able to be ignited by a priming fuse, device including at least one vent enabling the explosive load to communicate with the free air, device where the vent opens into a chamber located between the fuse and the explosive load.
    Type: Grant
    Filed: December 8, 2004
    Date of Patent: April 8, 2008
    Assignee: Giat Industries
    Inventors: Régis Aumasson, Dominique Dion, Sylvain Jayet
  • Patent number: 7174834
    Abstract: An explosive shell comprising a fusible explosive load placed in a casing incorporating an opening, such shell comprising shimming means placed in the vicinity of the shell opening, such shimming means comprising a ring made of an elastic material placed between a front part of the shell casing and the explosive load, such ring being compressed by compression means, shell wherein the shimming ring incorporates a flange housed in a groove made in the casing of the shell.
    Type: Grant
    Filed: October 29, 2004
    Date of Patent: February 13, 2007
    Assignee: GIAT Industries
    Inventors: Dominique Dion, Sylvain Jayet, Règis Aumasson
  • Publication number: 20060027126
    Abstract: A deconfinement device for the casing of a piece of ammunition enclosing an explosive load able to be ignited by a priming fuse, device comprising at least one unblockable vent enabling the explosive load to communicate with the free air, device wherein the vent opens into a chamber located between the fuse and the explosive load.
    Type: Application
    Filed: December 8, 2004
    Publication date: February 9, 2006
    Applicant: GIAT INDUSTRIES
    Inventors: Regis Aumasson, Dominique Dion, Sylvain Jayet
  • Publication number: 20050155512
    Abstract: An explosive shell comprising a fusible explosive load placed in a casing incorporating an opening, such shell comprising shimming means placed in the vicinity of the shell opening, such shimming means comprising a ring made of an elastic material placed between a front part of the shell casing and the explosive load, such ring being compressed by compression means, shell wherein the shimming ring incorporates a flange housed in a groove made in the casing of the shell.
    Type: Application
    Filed: October 29, 2004
    Publication date: July 21, 2005
    Applicant: GIAT INDUSTRIES
    Inventors: Dominique Dion, Sylvain Jayet, Regis Aumasson