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US 12,529,549 B2Granted
Tool and method for producing a projectile and projectile
AssigneeRWS GmbH
InventorsStephan Gelfert, Donald Meyer
Life of this patent
Estimating the term…
Abstract
A projectile may be formed having a caliber in the range from 4.6 mm to 20 mm for ammunition. The projectile may be a deformation bullet, a partial fragmentation bullet, a partial or full jacket bullet, a hard-core bullet or tracer bullet. The projectile may be formed by cold forming, in particular extrusion, from an intermediate with a tube section of substantially constant wall thickness, which constitutes at least 50% of the longitudinal extension of the intermediate.
Claims15
A cold-formed projectile for ammunition, comprising:
- a central cavity;
- and
- a bullet jacket surrounding the central cavity, the bullet jacket including an ogive-shaped bullet front and an adjoining bullet rear with a solid rear portion leading to a bullet bottom,
- wherein the cold-formed projectile is cold formed from an intermediate with a tube section of constant wall thickness, which constitutes at least 50% of a longitudinal extension of the intermediate, an outer diameter of the intermediate corresponding to a caliber of the projectile,
- wherein an inner tube diameter is at most 50% of an outer tube diameter of the tube section, and
- wherein an inner cross-section of the tube section is point-symmetrical, deviates from a circular shape, and is constant in a direction of the longitudinal extension.
3 more elements
A method of producing a projectile, comprising:
- inserting, into a die, an intermediate including a tube section of constant wall thickness, the tube section constituting at least 50% of a longitudinal extension of the intermediate, an outer diameter of the intermediate corresponding to a caliber of the projectile, and an inner tube diameter being at most 50% of an outer tube diameter of the tube section, wherein an inner cross-section of the tube section is point-symmetrical, deviates from a circular shape, and is constant in a direction of the longitudinal extension;
- and
- cold forming the intermediate using a tool such that, at least sectionally, an outer diameter of the intermediate remains constant and determines the projectile caliber, wherein the produced projectile comprises a central cavity and a bullet jacket surrounding the central cavity, the bullet jacket including an ogive-shaped bullet front and an adjoining bullet rear with a solid rear portion leading to a bullet bottom.
Dependencies are inferred from the claim text.