Providing spin to composite projectile

• US 9,528,805 B2
• Filed: 04/05/2015
• Issued: 12/27/2016
• Est. Priority Date: 04/07/2014
• Status: Active Grant

• Current Assignee: GFY Products, LLC
• Original Assignee: Einstein Noodles, LLC
• Inventors: Privette, Dewey R., Seeman, Daniel Jonathan
• Primary Examiner(s): Abdosh, Samir
• Application Number:
  US14/678,989
• Publication Number:
  US 20160290773A1
• Time in Patent Office: 632 Days
• US Class Current: 1/1
• CPC Class Codes: F42B 12/745 the core being made of plastics; Compounds or blends of plastics and other materials, e.g. fillers
• CPC Class Codes: F42B 12/78 of jackets for smallarm bullets ; Jacketed bullets or projectiles
• CPC Class Codes: F42B 33/00 Manufacture of ammunition; Dismantling of ammunition; Apparatus therefor F42B5/188 takes precedence; manufacturing processes for hollow charges F42B1/036; manufacture of blasting cartridge initiators F42B3/195
• CPC Class Codes: F42B 5/02 Cartridges, i.e. cases with charge and missile

Abstract

A projectile includes a body preferably in the shape of a bullet and having a density less than the density of lead. The projectile further includes a stabilizer adhered to the body. The stabilizer is configured to engage rifling of a barrel of a firearm and impart rotation to the projectile as the projectile travels through the barrel. A preferred ammunition cartridge includes a primer, a propellant, and the aforesaid projectile, as well as a casing containing the primer, propellant and projectile, with the projectile projecting from the casing. Other projectiles in accordance with aspects and features of the invention further are disclosed.

Claims

1. An ammunition cartridge for a firearm, comprising:

(a) a propellant; and

(b) a projectile fixed in position relative to the propellant, the projectile comprising;

(i) a toughened polymer resin comprising an elastomer-modified epoxy functional adduct formed by the reaction of a bisphenol A liquid epoxy resin and a carboxyl terminated butadiene-acrylonitrile elastomer;

(ii) a particulate filler distributed through the resin; and

(iii) a curative agent by which the toughened polymer resin with distributed particulate filler is cured;

(c) wherein the cured toughened polymer resin with distributed particulate filler comprises a resin body having an elongate, generally cylindrical portion extending between opposite longitudinal ends of the resin body; and

(d) wherein the projectile further comprises a stabilizer bonded to the resin body and configured to engage rifling of a barrel of a firearm and impart rotation to the projectile as the projectile travels through the barrel.

2. The cartridge of claim 1, wherein the filler has a density greater than a density of the resin.

3. The cartridge of claim 1, wherein the resin body has an average density less than 45 percent of the density of lead.

4. The cartridge of claim 1, wherein the resin is 20 to 30 weight percent of the total projectile composition.

5. The cartridge of claim 1, wherein the filler is 70 to 80 weight percent of the total projectile composition.

6. The cartridge of claim 1, wherein the filler comprises tungsten.

7. The cartridge of claim 1, wherein the elastomer content is 40 percent by weight of the toughened polymer resin.

8. The cartridge of claim 1, wherein the filler is selected from the group consisting of:

copper, tungsten, lead, depleted uranium, bismuth, bronze, iron and steel, ceramic, clay, mica, silica, calcium carbide, a micro-encapsulated material, and combinations thereof.

9. The cartridge of claim 1, wherein the resin body has the shape of a bullet.

10. An ammunition cartridge, comprising:

(a) a primer;

(b) a propellant;

(c) a projectile; and

(d) a casing containing the primer, propellant and projectile, with the projectile projecting from the casing;

(e) wherein the projectile comprises;

(i) a toughened polymer resin comprising an elastomer-modified epoxy functional adduct formed by the reaction of a bisphenol A liquid epoxy resin and a carboxyl terminated butadiene-acrylonitrile elastomer;

(ii) a particulate filler distributed through the resin; and

(iii) a curative agent by which the toughened polymer resin with distributed particulate filler is cured;

(iv) wherein the cured toughened polymer resin with distributed particulate filler comprises a resin body having an elongate, generally cylindrical portion extending between opposite longitudinal ends of the resin body; and

(v) wherein the projectile further comprises a stabilizer bonded to the resin body and configured to engage rifling of a barrel of a firearm and impart rotation to the projectile as the projectile travels through the barrel.

11. The cartridge of claim 10, wherein the projectile has an average density less than 45 percent of the density of lead.

12. The cartridge of claim 10, wherein the resin is 20 to 30 weight percent of the total projectile composition.

13. The cartridge of claim 10, wherein the filler is 70 to 80 weight percent of the total projectile composition.

14. The cartridge of claim 10, wherein the filler comprises tungsten.

15. The cartridge of claim 10, wherein the elastomer content is 40 percent by weight of the toughened polymer resin.

16. The cartridge of claim 10, wherein the filler is selected from the group consisting of:

copper, tungsten, lead, depleted uranium, bismuth, bronze, iron and steel, ceramic, clay, mica, silica, calcium carbide, a micro-encapsulated material, and combinations thereof.

17. The cartridge of claim 10, wherein the resin body has the shape of a bullet.

18. A method of making an ammunition cartridge for a firearm, the method comprising the steps of:

(a) mixing together to form a projectile that is fixed in position relative to a propellant,

(i) a toughened polymer resin comprising an elastomer-modified epoxy functional adduct formed by the reaction of a bisphenol A liquid epoxy resin and a carboxyl terminated butadiene-acrylonitrile elastomer,

(ii) a particulate filler distributed through the resin and

(iii) a curative agent;

(b) introducing the mixture into a projectile mold having a cavity in a desired projectile shape;

(c) allowing the toughened polymer resin with distributed particulate filler to cure so as to form a resin body having an elongate, generally cylindrical portion extending between opposite longitudinal ends of the resin body; and

(d) removing the projectile from the mold;

(e) wherein the method further comprises bonding a stabilizer to the resin body such that the stabilizer is configured to engage rifling of a barrel of a firearm and impart rotation to the projectile as the projectile travels through the barrel.

19. The method of claim 18, wherein the step of bonding the stabilizer to the resin body comprises placing the stabilizer in the mold prior to allowing the resin to cure.

20. The method of claim 18, wherein the step of bonding the stabilizer to the resin body comprises adhering the stabilizer to the resin body after removing the resin body from the mold.