Ammunition cartridge
OwnerAlbert Gaideinventor
Life of this patent
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Abstract
Ammunition cartridge comprising a rigid casing including a tubular sleeve and a base closing an end of the casing, a projectile mounted at another end of the casing, a propellant charge contained inside the casing, and an ignition device. The ignition device comprises an ignition charge arranged to ignite the propellant charge at a point of ignition distal from the base and proximal the projectile.
Claims9
A method of producing an ammunition cartridge comprising a rigid casing, a projectile, a propellant charge and an ignition device, the method comprising:
- (i) forming the propellant charge in a solid self-supporting preform,
- (ii) separately forming a tubular sleeve of the casing and a base of the casing,
- (iii) inserting the solid preform propellant charge and the ignition device in the tubular sleeve through a base end of the tubular sleeve and assembling the base to the tubular sleeve,
- (iv) assembling the projectile to the tubular sleeve.
A method of producing an ammunition cartridge comprising a rigid casing, a projectile, a propellant charge, and an ignition device, the method comprising:
- separately forming a tubular sleeve of the casing and a base of the casing, wherein forming the tubular sleeve comprises:
- inserting a tool insert assembly inside a cylindrical tube, the tool insert assembly having a portion with a shape corresponding to an internal shape of the cartridge casing and 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,
- compressing the tubular sleeve to deform it against the tool insert assembly,
- withdrawing the support pin and subsequently withdrawing the shaping insert
- (ii) assembling the base to the tubular sleeve, wherein assembling the base to the tubular sleeve comprises welding the base to the tubular sleeve.
Dependencies are inferred from the claim text.