Patents Assigned to Manurhin Defense
  • Patent number: 5652408
    Abstract: An explosive projectile has a splinter-generating body inside which is placed an explosive and/or incendiary load ignited by a primer. The projectile also contains an intermediate charge placed between the primer and the explosive load. The charge is composed of a mixture of an explosive and a first pyrotechnic composition including at least one oxidizing agent and at least one reducing agent. The explosive projectile may be utilized as a medium caliber projectile ignited upon impact by a pyrotechnic fuse.
    Type: Grant
    Filed: July 14, 1995
    Date of Patent: July 29, 1997
    Assignee: Manurhin Defense
    Inventor: Jacques Nicolas
  • Patent number: 5625161
    Abstract: A safety device to lock a firing pin of a spin-stabilized projectile fuse includes a flexible strip and a spiral spring. The flexible strip is disposed around the firing pin and has a first end, a second end and a length. The flexible strip is made of an elastic material. The spiral spring is windable around the flexible strip in a safe position and is disposed to unwind under centrifugal force to a firing position. The spiral spring is made of a spring strip that is wound around itself. When the spiral spring unwinds, the flexible strip unwinds within the spiral spring without exerting an elastic return force toward the firing pin. The length of the flexible strip is dimensioned such that the first end is offset in a circumferential direction relative to the second end by an offset amount when the flexible strip presses against the spiral spring in the firing position. As a result, the spin-stabilized projectile fuse functions reliably.
    Type: Grant
    Filed: July 10, 1995
    Date of Patent: April 29, 1997
    Assignee: Manurhin Defense
    Inventors: Jacques Nicolas, Jean-Paul Oberle
  • Patent number: 5505137
    Abstract: A practice projectile includes a body formed from assembling a number of sectors. The sectors are made of plastic and designed to be received in a receptacle of a base. The body is held together during handling by a holder. The holder is designed to release the sectors once they exit the barrel of a weapon when the projectile is fired.
    Type: Grant
    Filed: May 25, 1994
    Date of Patent: April 9, 1996
    Assignee: Manurhin Defense
    Inventors: Jean-Marie Godefroy, Philippe Maillard
  • Patent number: 5121691
    Abstract: The invention relates to a projectile comprising a shell body containing an explosive charge and a ballistic nose cone in which a trigger system is disposed. The ballistic nose cone is organized as two distinct parts which are connected together in axial alignment, comprising a bottom portion that is essentially rigid and a top portion that is essentially deformable on impact on a target. Each of the portions is charged with a compressed incendiary composition, and together they form a closed functional cavity whose shape is maintained on firing and during the trajectory of the projectile. The bottom portion also receives a layer of mechanically strong pyrophoric material, said material being set off by the charge in the ballistic nose cone which is itself set off on impact by the sudden increase in the pressure of the air contained in the closed functional cavity.
    Type: Grant
    Filed: July 15, 1991
    Date of Patent: June 16, 1992
    Assignee: Manurhin Defense
    Inventor: Jacques Nicolas
  • Patent number: 4897950
    Abstract: A locking device is provided for holding the crane (3) in its closed position by means of a pushbutton (14) and a sliding latch (15) mounted in the crane (3). The pushbutton (14) is laterally accessible from the side of the gun opposite to the side from which the cylinder (4) is swung out, and the pushbutton co-operates directly with the sliding latch (15) in order to retract its end that is normally received in an associated notch provided in the frame (2) of the revolver. The pushbutton device (14) thus makes it possible to unlock the crane (3) using the same hand as is used to push the cylinder (4) towards its open position, and this is highly advantageous on ergonomic grounds. The invention is applicable to revolver manufacture.
    Type: Grant
    Filed: February 21, 1989
    Date of Patent: February 6, 1990
    Assignee: Matra Manurhin Defense
    Inventors: Alain Lechelle, Thierry Guidat, Serge Bruckert
  • Patent number: 4839978
    Abstract: A device for supporting the mechanism of a revolver in association with the frame of the revolver. The device is constituted by a mechanism carrier plate (1) which directly receives the various subassemblies (4, 13, 24, 30, 35) of the mechanism, and which is capable of being mounted directly, together with the subassemblies supported thereby, on the frame (2) of the revolver.
    Type: Grant
    Filed: March 22, 1988
    Date of Patent: June 20, 1989
    Assignee: Matra Manurhin Defense
    Inventors: Alain Lechelle, Thierry Guidat, Serge Bruckert
  • Patent number: 4793084
    Abstract: The invention relates to a cylinder firearm whose cylinder (100) includes a plurality of chambers (108). The cylinder (100) includes a channel (101) associated with each of its chambers (108) and opening out into said chamber ahead of any cartridge contained therein, with the other end of each channel receiving a piston (111), which piston presses against the frame of the gun when fired, thereby causing the cylinder to move forwardly by reaction and thus suppressing the operating clearance provided between the cylinder and the barrel and thus providing good sealing at the front of each chamber when fired. The invention is particularly applicable to revolvers.
    Type: Grant
    Filed: July 2, 1987
    Date of Patent: December 27, 1988
    Assignee: Matra Manurhin Defense
    Inventor: Jean Beltzer
  • Gun
    Patent number: D316442
    Type: Grant
    Filed: April 6, 1988
    Date of Patent: April 23, 1991
    Assignee: Matra Manurhin Defense
    Inventors: Thierry Guidat, Alain Lechelle, Marc Renard, Jean P. Puel