Rounded projectiles for target disruption
AssigneeThe United States of America as Represented by the Federal Bureau of Investigation, Department of Justice
InventorIan B. Vabnick
Life of this patent
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Abstract
Provided are methods and related devices for disrupting an explosive device using a propellant driven disrupter (PDD) that propels a rounded projectile (RP) toward an explosive device. The RP travels along a linear trajectory and impacts the target, including a barrier portion of the explosive device. The impacting between the RP and barrier forms a composite projectile via a solid state weld between a portion of the barrier and the RP distal end, thereby minimizing or avoiding spall and fragment generation into the explosive device. The projectile traverses a penetration distance along the linear trajectory, or a defined-angle relative thereto, to disrupt the explosive device without unwanted explosive detonation.
Claims19
A system for use in a propellant driven disrupter (PDD) for disrupting an explosive device, the system comprising:
- a first cylindrical shell corresponding to a blank cartridge having a first shell proximal end and a first shell distal end, the first shell proximal end configured to face a barrel breech end of a barrel of the PDD, and the first shell distal end configured to face a barrel muzzle end of the PDD;
- wherein the first cylindrical shell is at least partially formed of a metallic material;
- a rounded projectile (RP) having:
- a RP proximal end facing toward the disrupter barrel breech end when loaded in the barrel;
- a RP distal end opposed to the proximal end and facing toward the disrupter barrel muzzle end when loaded in the barrel;
- and a RP maximal outer diameter being between 90% and 100% of an inner diameter of the disrupter barrel;
- a wadding in physical contact with and covering the RP proximal end;
- a propellant region comprising a propellant;
- wherein the propellant region is inside the first cylindrical shell,
- a tamp at the cartridge distal end positioned between the propellant region and the wadding.
A system for use in a propellant driven disrupter (PDD) for disrupting an explosive device, the system comprising:
- a first cylindrical shell corresponding to a blank cartridge having a first shell proximal end and a first shell distal end, the first shell proximal end configured to face a barrel breech end of a barrel of the PDD, and the first shell distal end configured to face a barrel muzzle end of the PDD;
- wherein the first cylindrical shell is at least partially formed of a metallic material;
- a rounded projectile (RP) having:
- a RP proximal end facing toward the disrupter barrel breech end when loaded in the barrel;
- a RP distal end opposed to the proximal end and facing toward the disrupter barrel muzzle end when loaded in the barrel;
- and a RP maximal outer diameter being between 90% and 100% of an inner diameter of the disrupter barrel;
- a tamp positioned between the first shell distal end and the RP proximal end;
- and
- a propellant region comprising a propellant;
- wherein the propellant region is inside the first cylindrical shell.
Dependencies are inferred from the claim text.