Non-lethal ammunition utilizing a dense powder ballast and a two-stage firing sequence

• US 7,207,276 B1
• Filed: 08/25/2004
• Issued: 04/24/2007
• Est. Priority Date: 08/25/2004
• Status: Expired due to Fees

• Current Assignee: U.S. Government
• Original Assignee: United States Of America As Represented By The Secretary Of The Army (Government of the United States of America)
• Inventors: Dindl, Frank
• Primary Examiner(s): CLEMENT, MICHELLE RENEE
• Application Number:
  US10/711,121
• Time in Patent Office: 972 Days
• Field of Search: None
• US Class Current: 102/502
• CPC Class Codes: F42B 12/745 the core being made of plastics; Compounds or blends of plastics and other materials, e.g. fillers
• CPC Class Codes: F42B 5/02 Cartridges, i.e. cases with charge and missile
• CPC Class Codes: F42B 5/03 containing more than one missile
• CPC Class Codes: F42B 5/145 for dispensing gases, vapours, powders, particles or chemically-reactive substances from projectiles F42B12/46
• CPC Class Codes: F42B 7/04 of pellet type
• CPC Class Codes: F42C 19/0834 Arrangements of a multiplicity of primers or detonators dispersed within a propellant charge for increased efficiency

Abstract

A non-lethal ammunition utilizes dense powder ballast and a two-stage firing sequence for launching non-lethal projectiles of a caliber range from approximately 5.56 mm through approximately 40 mm. The non-lethal ammunition comprises a non-lethal cartridge. The non-lethal cartridge comprises a dense powder ballast and one or more non-lethal projectiles. The dense powder ballast is more massive than the non-lethal projectile providing sufficient payload mass to operate the weapon mechanism while launching the non-lethal projectile at velocities compatible with non-lethal applications. A two-stage ignition system fires the non-lethal ammunition and subsequently fires the more massive dense powder ballast. The firing events are separated by a time delay of less than a second. The non-lethal ammunition provides non-lethal projectile capability for semi-automatic and automatic weapons. Rifling imparts sufficient spin to the ballast material to efficiently disperse the dense powder upon muzzle exit and decelerate the ballast cup and contents to an “eye safe” non-lethal velocity at the target. The cartridge case may be smooth bore for use in rifled barrels, or may be rifled for use in smooth bore barrels.

Claims

1. In an automatic or semi-automatic weapon having a dense powder ballast and a firing sequence, and wherein a recoil impulse and gas pressure resulting from a launch of such dense powder ballast activates a reloading mechanism of the weapon, and wherein such weapon has a muzzle end thereof;

a medium caliber ammunition for use in such weapon, said ammunition comprising;

projectile balls within said ammunition;

a projectile propellant charge for launching said projectile balls;

a propellant charge for launching said dense powder ballast, and;

wherein the projectile balls achieve a muzzle velocity within a predetermined distance of the weapon'"'"'s muzzle, and wherein said ammunition further comprises;

a cartridge case that is made, at least in part, of a material that is selected from the group consisting of metal and a metal alloy.

2. In an automatic or semi-automatic weapon having a dense powder ballast and a firing sequence, and wherein a recoil impulse and gas pressure resulting from a launch of such dense powder ballast activates a reloading mechanism of the weapon, and wherein such weapon has a muzzle end thereof;

a medium caliber ammunition for use in such weapon, said ammunition comprising;

projectile balls within said ammunition;

a projectile propellant charge for launching said projectile balls;

a propellant charge for launching said dense powder ballast, and

wherein the projectile balls achieve a muzzle velocity within a predetermined distance of the weapon'"'"'s muzzle, and wherein said ammunition further comprises;

a cartridge case that is made, at least in part, of a material that is selected from the group consisting of metal and a metal alloy; and

wherein the ammunition further comprises a ballast cup that decomposes and disintegrates after exiting the muzzle end of the weapon after firing, within a pre-determined distance of the muzzle end, dispersing the plurality of projectile balls at the muzzle velocity.

3. In an automatic or semi-automatic smooth bore weapon having a dense powder ballast and a firing sequence, and wherein a recoil impulse and gas pressure resulting from a launch of such dense powder ballast activates a reloading mechanism of the weapon, and wherein such weapon has a muzzle end thereof;

a medium caliber ammunition for use in such weapon, said ammunition comprising;

projectile balls within said ammunition;

a projectile propellant charge for launching said projectile balls;

a propellant charge for launching said dense powder ballast, and

wherein the projectile balls achieve a muzzle velocity within a predetermined distance of the weapon'"'"'s muzzle, and wherein said ammunition further comprises;

a cartridge case that is made, at least in part, of a material that is selected from the group consisting of metal and a metal alloy;

wherein the ammunition further comprises a ballast cup that decomposes and disintegrates within a pre-determined distance of exiting the muzzle end after firing, dispersing the plurality of projectile balls at the muzzle velocity, and wherein the ballast cup comprises a rotating band and a spiral to develop a spin in said ammunition upon firing thereof.

4. In an automatic or semi-automatic weapon having a dense powder ballast and a firing sequence, and wherein a recoil impulse and gas pressure resulting from a launch of such dense powder ballast activates a reloading mechanism of the weapon, and wherein such weapon has a muzzle end thereof;

a medium caliber ammunition for use in such weapon, said ammunition comprising;

projectile balls within said ammunition;

a projectile propellant charge for launching said projectile balls;

a propellant charge for launching said dense powder ballast, and

wherein the projectile balls achieve a muzzle velocity within a predetermined distance of the weapon'"'"'s muzzle, and wherein said ammunition further comprises;

a cartridge case that is made, at least in part, of a material that is selected from the group consisting of metal and a metal alloy;

wherein the ammunition further comprises a ballast cup that decomposes and disintegrates within a pre-determined distance of exiting the muzzle end after firing, dispersing the plurality of projectile balls at the muzzle velocity; and

wherein the ammunition further comprises an end cap, a polymer cover, and a gas seal; and

wherein the polymer cover separates an interior of the cartridge case into a fore section and an aft section, with the ballast cup containing the ballast material in the aft section.

5. In an automatic or semi-automatic weapon having a dense powder ballast and a firing sequence, and wherein a recoil impulse and gas pressure resulting from a launch of such dense powder ballast activates a reloading mechanism of the weapon, and wherein such weapon has a muzzle end thereof;

a medium caliber ammunition for use in such weapon, said ammunition comprising;

projectile balls within said ammunition;

a projectile propellant charge for launching said projectile balls;

a propellant charge for launching said dense powder ballast, and

wherein the projectile balls achieve a muzzle velocity within a predetermined distance of the weapon'"'"'s muzzle, and wherein said ammunition further comprises;

a cartridge case that is made, at least in part, of a material that is selected from the group consisting of metal and a metal alloy;

wherein the ammunition further comprises a ballast cup that decomposes and disintegrates within a pre-determined distance of exiting the muzzle end after firing, dispersing the plurality of projectile balls at the muzzle velocity; and

wherein the ammunition further comprises an end cap, a polymer cover, and a gas seal; and

wherein the polymer cover separates an interior of the cartridge case into a fore section and an aft section, with the ballast cup containing the ballast material in the aft section, and wherein the fore section contains the plurality of projectile balls.

6. In an automatic or semi-automatic weapon having a dense powder ballast and a firing sequence, and wherein a recoil impulse and gas pressure resulting from a launch of such dense powder ballast activates a reloading mechanism of the weapon, and wherein such weapon has a muzzle end thereof;

a medium caliber ammunition for use in such weapon, said ammunition comprising;

projectile balls within said ammunition;

a projectile propellant charge for launching said projectile balls;

a propellant charge for launching said dense powder ballast, and

wherein the projectile balls achieve a muzzle velocity within a predetermined distance of the weapon'"'"'s muzzle, and wherein said ammunition further comprises;

a cartridge case that is made, at least in part, of a material that is selected from the group consisting of metal and a metal alloy;

wherein the ammunition further comprises a ballast cup that decomposes and disintegrates within a pre-determined distance of exiting the muzzle end after firing, dispersing the plurality of projectile balls at the muzzle velocity; and

wherein the ammunition further comprises an end cap, a polymer cover, and a gas seal; and

wherein the polymer cover separates an interior of the cartridge case into a fore section and an aft section, with the ballast cup containing the ballast material in the aft section, and wherein the aft section contains the primer, the projectile propellant charge, the weapon powering propellant charge, and the dense powder ballast.