Ammunition cartridge
AssigneeRabuffo SA
InventorAlbert Gaide
Life of this patent
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Abstract
Ammunition cartridge (1) comprising a rigid casing (4) including a tubular sleeve (16) and a base (14) closing an end of the casing, a projectile (6) mounted at another end of the casing, a propellant charge (10) contained inside the casing, and an ignition device (8). The ignition device comprises an ignition charge (56) arranged to ignite the propellant charge at a point of ignition distal from the base (14) and proximal the projectile (6).
Claims3
A tool mechanism for forming a rigid casing of an ammunition cartridge, the casing comprising a base and a tubular sleeve, comprising a tool insert assembly having a portion with a shape corresponding to an internal shape of the cartridge casing, the tool insert assembly formed of at least two parts including a shaping insert and a support pin that slidably inserts into a central passage of the shaping insert, the shaping insert comprising a radially compressible body portion that allows the shaping insert to move elastically radially inwardly when the support pin is removed.
A tool mechanism for forming a rigid casing of an ammunition cartridge, the casing comprising a base and a tubular sleeve, the tool mechanism configured to form longitudinal grooves in the tubular sleeve to increasing buckling resistance, comprising a swaging operation that generates longitudinal grooves in a flat metal band and a folding operation to fold the metal band into a tube, a longitudinal seam of the tube being subsequently welded.
Dependencies are inferred from the claim text.