PROJECTILES FOR AMMUNITION AND METHODS OF MAKING AND USING THE SAME

• US 20160231093A1
• Filed: 09/24/2014
• Published: 08/11/2016
• Est. Priority Date: 09/24/2013
• Status: Active Grant

• Current Assignee: Quantum Ammunition, LLC
• Original Assignee: PolyCase Ammunition, LLC
• Inventors: Johnson, Steven Eric, Lemke, Paul, Marin, Juan Carlos
• Granted Patent: US 9,841,260 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: F42B 10/24 with inclined grooves
• CPC Class Codes: F42B 12/74 of the core or solid body
• CPC Class Codes: F42B 12/76 of the casing
• CPC Class Codes: F42B 6/10 Air gun pellets ; Ammunition for air guns, e.g. propellant-gas containers

Abstract

A projectile 1 for ammunition is disclosed, said projectile 1 comprising an outer profile geometry on an ogive-shaped impact end portion 5 thereof, said outer profile geometry comprising two or more notches 2 extending in at least one of (i) an axial, (ii) parallel or (iii) slightly inclined orientation relative to a dissecting axis 3 extending longitudinally through said impact end portion 5 of said projectile 1, wherein each notch 2 (a) comprises notch surface portions 4,7 so as to increase (i) an overall outer surface area of said ogive end portion 5 of projectile 1, and (ii) a given length of an outer surface periphery Sp extending along a line within a plane normal to said dissecting axis 3, and (b) is surrounded by an outer side surface 51 of said ogive- shaped impact end portion 5 of said projectile 1. In other words, the presence of the two or more notches 2 increases a length of an outer surface periphery Sp extending along a line within a plane normal to said dissecting axis 3 relative to the same outer surface periphery Sp extending within the same plane normal to said dissecting axis 3 when a notch is not present.

Claims

1. A projectile (1) for ammunition, said projectile (1) comprising an outer profile geometry on an ogive-shaped impact end portion (5) thereof, said outer profile geometry comprising two or more notches (2) extending in (i) an axial, and (ii) parallel orientation relative to a dissecting axis (3) extending longitudinally through said impact end portion (5) of said projectile (1), wherein each notch (2) comprises notch surface portions (4,7) so as to increase (i) an overall outer surface area of said ogive end portion (5) of projectile (1), and (ii) a given length of an outer surface periphery (S_p) extending along a line within a plane normal to said dissecting axis (3), characterized in that each notch (2) (a) is surrounded by an outer side surface (51) of said ogive-shaped impact end portion (5) of said projectile (1), and (b) is oriented at an angle (A) of greater than zero up to about 45°

relative to said dissecting axis (3).

5. The projectile (1) of claim 1, wherein each notch (2) comprises:

a notch dissecting line (L_nd) extending axially through and being centrally located within said notch (2),

notch outer periphery points (P_L,P_R) along an outer notch perimeter (21) on opposite sides of said notch dissecting line (L_nd), and right and left-hand line portions (22_L,22_R) of a normal line extending from said notch dissecting line (L_nd) to each notch outer periphery point (P_L,P_R), wherein each of said right and left-hand line portions (22_L,22_R) (i) increases in length along at least a first portion of said notch dissecting line (L_nd) and subsequently (ii) decreases in length along at least a second portion of said notch dissecting line (L_nd) extending between an uppermost periphery portion (23) of said notch (2) and a lowermost periphery portion (24) of said notch (2).

10. The projectile (1) of claim 1, wherein each notch (2) has a slightly inclined orientation relative to said dissecting axis (3), with each notch (2) being oriented at an angle (A) of from about 15°

to about 30°

relative to said dissecting axis (3).

12. The projectile (1) of claim 1, wherein said notch depth dissecting line (L_dd) curves as said notch depth dissecting line (L_dd) moves from said uppermost periphery portion (23) of said notch to said lowermost periphery portion (24) of said notch (2).

13. The projectile (1) of claim 12, wherein said notch depth dissecting line (L_dd) has a J-shape or reverse J-shape as said notch depth dissecting line (L_dd) moves from said uppermost periphery portion (23) of said notch (2) to said lowermost periphery portion (24) of said notch (2).

14. The projectile (1) of claim 1, wherein each notch (2) has (i) a first notch surface area (35) and a first depth grade (37) on one side of said notch depth dissecting line (L_dd), and (ii) a second notch surface area (36) and a second depth grade (38) on an opposite side of said notch depth dissecting line (L_dd), said first notch surface area (35) being smaller than said second notch surface area (36) and said first depth grade (37) being greater than said second depth grade (38).

15. The projectile (1) of claim 1, wherein said notch surface portions (4,7) comprise one or more cylindrically-shaped or spherically-shaped notch surface portions (4,7).

16. The projectile (1) of claim 1, wherein said two or more notches (2) comprise three or more notches (2).

17. The projectile (1) of claim 1, wherein said two or more notches (2) comprise three notches (2) equally spaced from one another.

18. The projectile (1) of claim 1, wherein said two or more notches (2) comprise four notches (2) equally spaced from one another.

19. The projectile (1) of claim 1, wherein said ogive-shaped impact end portion (5) extends from a projectile tip end (18) to a transition periphery (52) along said projectile (1), and said projectile (1) further comprises a cylindrical portion (6) extending from said transition periphery (52) to an opposite end (61) of said projectile (1).

20. The projectile (1) of claim 1, wherein said ogive-shaped impact end portion (5) comprises a polymeric matrix material filled with metal particles or a metal, wherein said metal is selected from brass, silver, lead, lead alloy, copper plated lead alloy, copper, or stainless steel.

24. The projectile (1) of claim 1, wherein an opposite end (61) of said projectile (1) has a truncated cone shape and/or a reduced diameter cylindrical shape.

28. A composite or polymer casing comprising the projectile (1) of claim 1 mounted therein.

29. A metal casing comprising the projectile of claim 1 mounted therein.

31. A box of composite casings comprising:

one or more composite or polymer or metal casings comprises the projectile of claim 1;

a cartridge-holding device; and

an outer box sized to contain said cartridge-holding device with one or more composite casings positioned therein.

32. A method of making the projectile for ammunition of claim 1, said method comprising:

injection molding a plastic material filled with metal particles, sintering or machining.

37. A method of using the projectile (1) for ammunition of claim 1, said method comprising:

positioning a composite or polymer or metal casing comprising the projectile al in a chamber of a projectile-firing weapon; and

firing the weapon.

38. A method of using the projectile (1) for ammunition of claim 1, said method comprising:

positioning the projectile al in a chamber of a projectile-firing compressed air weapon; and

firing the weapon.

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