Shotgun-Barrel Projectile with Intercalaction and Cartridge

• US 20080047457A1
• Filed: 10/06/2004
• Published: 02/28/2008
• Est. Priority Date: 10/11/2003
• Status: Active Grant

• Current Assignee: RUAG Ammotec GmbH (Government of Switzerland)
• Original Assignee: Kaimler Chryster AG
• Inventors: Muskat, Erich, Riess, Heinz
• Granted Patent: US 7,735,422 B2
• Time in Patent Office: Days
• US Class Current: 102/501
• CPC Class Codes: F42B 7/08 Wads, i.e. projectile or shot carrying devices, therefor
• CPC Class Codes: F42B 7/10 Ball or slug shotgun cartridges

Abstract

The invention relates to a ball cartridge (1) for a shotgun with an intermediate means (2) which can be built into a cartridge (20). The bullet (1) has a cylindrical free area (10) on the lower side thereof and the intermediate means (2) is embodied as a piston (21) on the end thereof facing the bullet (1) and the diameter thereof is adapted to the free area (10). In order to provide a solid link between the bullet (1) and the intermediate means (2), the bullet (1) is placed on the piston (21) or vice-versa and is pushed into the free area (10) and wedged during the piston (21) shot.

Claims

1. A shotgun-barrel projectile (1) with an intercalation (2) for fitting into a cartridge (20), the projectile (1) exhibiting a cylindrical free space (10) on its underside, and the intercalation (2) taking the form of a plunger (21) at its end facing towards the projectile (1), this plunger having a diameter adapted to the free space (10), characterised in that the projectile (1) is mounted onto the plunger (21), or conversely, and the plunger (21) is inserted into the free space (10) and wedged in the course of firing.

2. A shotgun-barrel projectile according to claim 1, characterised in that

the free space (10) exhibits a projectile spigot (12) arranged on the axis of symmetry (22),

the plunger (21) exhibits a bore (15) arranged on the axis of symmetry (22),

the projectile spigot (12) and the bore (15) are substantially adapted to one another in diameter, and

the projectile spigot (12) and the bore (15) are endowed with wedging elements (13, 16, 17) which in the course of firing and insertion of the plunger (21) into the free space (10) bring about a wedging of the plunger (21) and therefore of the intercalation (2) with the projectile (1).

3. A shotgun-barrel projectile according to claim 2, characterised in that the wedging elements (13, 16, 17) include a hollow cylindrical design of the end of the projectile spigot (12) facing towards the intercalation, the underside of the projectile spigot (12) exhibiting an inwardly inclined bevel (13), the bore (15) in the plunger (21) exhibiting a hemisphere (17) arranged at the bottom, and, in addition, a diameter reduction (16) being arranged on the wall of the bore (15) above the hemisphere (17).

4. A shotgun-barrel projectile according to claim 1, characterised in that a ring (8) is connected to the plunger (21) on the outer periphery of the plunger (21) via a predetermined breaking-point (9).

5. A shotgun-barrel projectile according to claim 4, characterised in that the ring (8) is formed in one piece with the plunger (21).

6. A shotgun-barrel projectile according to claim 4, characterised in that ring (8) constitutes a stop for the projectiles base (23).

7. A shotgun-barrel projectile according to claim 4, characterised in that the ring (8) is L-shaped and with one shank (8a) encompasses the projectile (1) almost as far as the nose of the projectile.

8. A shotgun-barrel projectile according to claim 7, characterised in that the one shank (8a) exhibits an inward-facing projection (24) which engages a corresponding recess (25) in the projectile (1).

9. A shotgun-barrel projectile according to claim 1, characterised in that the nose of the projectile merges, via a bevel (3) with adjoining shoulder (4) running parallel to the axis of symmetry (22), with a plane face (5) running perpendicular to the axis of symmetry (22) and extending as far as the outer periphery of the projectile (1).

10. A shotgun-barrel projectile according to claim 1, characterised in that the intercalation (2) consists of a plastic material and the projectile (1) consists of a readily deformable material, preferably lead.

11. A cartridge with a cartridge case (26) and with a propelling charge (27), characterised in that a shotgun-barrel projectile (1) with an intercalation (2) according to claim 1 is mounted on the propelling charge (27).

12. Cartridge according to claim 11, characterised in that the upper end of the cartridge case (26) is retracted inwards by 180°

and rests on the plane face (5).