Metal injection molded ammunition cartridge
First Claim
Patent Images
1. A metal injection molded ammunition cartridge comprising:
- a metal injection molded metal mid-body comprisinga nose connection surface at a first end opposite a primer insert end at a second end connected by a cylindrical propellant chamber wherein the primer insert end comprises a primer flash hole that extends from the propellant chamber into a primer recess adapted to accept a primer;
a metal injection molded metal bullet-end component that mates to the metal injection molded metal mid-body comprisinga projectile aperture at a first end adapted to receive a projectile,a neck that extends from the projectile aperture to a shoulder region, anda coupling end the extends from the neck and mates to the nose connection surface to enclose the propellant chamber, to form a metal injection molded ammunition cartridge wherein the metal injection molded metal mid-body, the metal injection molded metal bullet-end component or both comprise;
a) 2-16 w % Ni;
10-20 w % Cr;
0-5 w % Mo;
0-0.6 w % C;
0-6.0 w % Cu;
0-0.5 w % Nb+Ta;
0-4.0 w % Mn;
0-2.0 w % Si and the balance Fe;
b) 2-6 w % Ni;
13.5-19.5 w % Cr;
0-0.10 w % C;
1-7.0 w % Cu;
0.05-0.65 w % Nb+Ta;
0-3.0 w % Mn;
0-3.0 w % Si and the balance Fe;
c) 3-5 w % Ni;
15.5-17.5 w % Cr;
0-0.07 w % C;
3-5.0 w % Cu;
0.15-0.45 w % Nb+Ta;
0-1.0 w % Mn;
0-1.0 w % Si and the balance Fe;
d) 10-14 w % Ni;
16-18 w % Cr;
2-3 w % Mo;
0-0.03 w % C;
0-2 w % Mn;
0-1 w % Si and the balance Fe;
e) 12-14 w % Cr;
0.15-0.4 w % C;
0-1 w % Mn;
0-1 w % Si and the balance Fe;
f) 16-18 w % Cr;
0-0.05 w % C;
0-1 w % Mn;
0-1 w % Si and the balance Fe;
g) 3-12 w % aluminum, 2-8 w % vanadium, 0.1-0.75 w % iron, 0.1-0.5 w % oxygen, and the remainder titanium;
orh) about 6 w % aluminum, about 4 w % vanadium, about 0.25 w % iron, about 0.2 w % oxygen, and the remainder titanium.
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Accused Products
Abstract
The present invention provides a metal injection molded ammunition cartridge comprising a molded metal bottom portion comprising a primer recess in communication with a primer flash hole that extends into a propellant chamber; a molded metal top portion comprises a projectile aperture at a first end and mates to the molded metal bottom portion at a second end to enclose the propellant chamber; and a neck to connect the transition from the projectile aperture to the diameter of the propellant chamber.
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Citations
6 Claims
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1. A metal injection molded ammunition cartridge comprising:
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a metal injection molded metal mid-body comprising a nose connection surface at a first end opposite a primer insert end at a second end connected by a cylindrical propellant chamber wherein the primer insert end comprises a primer flash hole that extends from the propellant chamber into a primer recess adapted to accept a primer; a metal injection molded metal bullet-end component that mates to the metal injection molded metal mid-body comprising a projectile aperture at a first end adapted to receive a projectile, a neck that extends from the projectile aperture to a shoulder region, and a coupling end the extends from the neck and mates to the nose connection surface to enclose the propellant chamber, to form a metal injection molded ammunition cartridge wherein the metal injection molded metal mid-body, the metal injection molded metal bullet-end component or both comprise; a) 2-16 w % Ni;
10-20 w % Cr;
0-5 w % Mo;
0-0.6 w % C;
0-6.0 w % Cu;
0-0.5 w % Nb+Ta;
0-4.0 w % Mn;
0-2.0 w % Si and the balance Fe;b) 2-6 w % Ni;
13.5-19.5 w % Cr;
0-0.10 w % C;
1-7.0 w % Cu;
0.05-0.65 w % Nb+Ta;
0-3.0 w % Mn;
0-3.0 w % Si and the balance Fe;c) 3-5 w % Ni;
15.5-17.5 w % Cr;
0-0.07 w % C;
3-5.0 w % Cu;
0.15-0.45 w % Nb+Ta;
0-1.0 w % Mn;
0-1.0 w % Si and the balance Fe;d) 10-14 w % Ni;
16-18 w % Cr;
2-3 w % Mo;
0-0.03 w % C;
0-2 w % Mn;
0-1 w % Si and the balance Fe;e) 12-14 w % Cr;
0.15-0.4 w % C;
0-1 w % Mn;
0-1 w % Si and the balance Fe;f) 16-18 w % Cr;
0-0.05 w % C;
0-1 w % Mn;
0-1 w % Si and the balance Fe;g) 3-12 w % aluminum, 2-8 w % vanadium, 0.1-0.75 w % iron, 0.1-0.5 w % oxygen, and the remainder titanium;
orh) about 6 w % aluminum, about 4 w % vanadium, about 0.25 w % iron, about 0.2 w % oxygen, and the remainder titanium. - View Dependent Claims (2, 3, 4)
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5. A metal injection molded ammunition cartridge comprising:
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a metal injection molded metal mid-body comprising a nose connection surface at a first end opposite a primer insert end at a second end connected by a cylindrical propellant chamber wherein the primer insert end comprises a primer flash hole that extends from the propellant chamber into a primer recess adapted to accept a primer; a metal injection molded metal bullet-end component that mates to the metal injection molded metal mid-body comprising a projectile aperture at a first end adapted to receive a projectile, a neck that extends from the projectile aperture to a shoulder region, and a coupling end the extends from the neck and mates to the nose connection surface to enclose the propellant chamber, to form a metal injection molded ammunition cartridge, wherein the metal injection molded metal mid-body, the metal injection molded metal bullet-end component or both comprises a) 2-16 w % Ni;
10-20 w % Cr;
0-5 w % Mo;
0-0.6 w % C;
0-6.0 w % Cu;
0-0.5 w % Nb+Ta;
0-4.0 w % Mn;
0-2.0 w % Si and the balance Fe;b) 2-6 w % Ni;
13.5-19.5 w % Cr;
0-0.10 w % C;
1-7.0 w % Cu;
0.05-0.65 w % Nb+Ta;
0-3.0 w % Mn;
0-3.0 w % Si and the balance Fe;c) 3-5 w % Ni;
15.5-17.5 w % Cr;
0-0.07 w % C;
3-5.0 w % Cu;
0.15-0.45 w % Nb+Ta;
0-1.0 w % Mn;
0-1.0 w % Si and the balance Fe;d) 10-14 w % Ni;
16-18 w % Cr;
2-3 w % Mo;
0-0.03 w % C;
0-2 w % Mn;
0-1 w % Si and the balance Fe;e) 12-14 w % Cr;
0.15-0.4 w % C;
0-1 w % Mn;
0-1 w % Si and the balance Fe;f) 16-18 w % Cr;
0-0.05 w % C;
0-1 w % Mn;
0-1 w % Si and the balance Fe;g) 3-12 w % aluminum, 2-8 w % vanadium, 0.1-0.75 w % iron, 0.1-0.5 w % oxygen, and the remainder titanium;
orh) about 6 w % aluminum, about 4 w % vanadium, about 0.25 w % iron, about 0.2 w % oxygen, and the remainder titanium.
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6. A unitary metal injection molded ammunition cartridge comprising:
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a first end having a projectile aperture adapted to receive a projectile; a second end opposite the first end, a mid-body that connects the first end to the second end forming a cylindrical propellant chamber, wherein the second end houses a primer recess adapted to receive a primer and an extraction flange around a circumference of the second end to allow extraction of the cartridge and a primer flash hole positioned in the primer recess that connects the propellant chamber and the primer recess, wherein the mid-body comprises a) 2-16 w % Ni;
10-20 w % Cr;
0-5 w % Mo;
0-0.6 w % C;
0-6.0 w % Cu;
0-0.5 w % Nb+Ta;
0-4.0 w % Mn;
0-2.0 w % Si and the balance Fe;b) 2-6 w % Ni;
13.5-19.5 w % Cr;
0-0.10 w % C;
1-7.0 w % Cu;
0.05-0.65 w % Nb+Ta;
0-3.0 w % Mn;
0-3.0 w % Si and the balance Fe;c) 3-5 w % Ni;
15.5-17.5 w % Cr;
0-0.07 w % C;
3-5.0 w % Cu;
0.15-0.45 w % Nb+Ta;
0-1.0 w % Mn;
0-1.0 w % Si and the balance Fe;d) 10-14 w % Ni;
16-18 w % Cr;
2-3 w % Mo;
0-0.03 w % C;
0-2 w % Mn;
0-1 w % Si and the balance Fe;e) 12-14 w % Cr;
0.15-0.4 w % C;
0-1 w % Mn;
0-1 w % Si and the balance Fe;f) 16-18 w % Cr;
0-0.05 w % C;
0-1 w % Mn;
0-1 w % Si and the balance Fe;g) 3-12 w % aluminum, 2-8 w % vanadium, 0.1-0.75 w % iron, 0.1-0.5 w % oxygen, and the remainder titanium;
orh) about 6 w % aluminum, about 4 w % vanadium, about 0.25 w $ iron, about 0.2 w % oxygen, and the remainder titanium.
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Specification