Composite projectile and cartridge with composite projectile

• US 9,322,623 B2
• Filed: 02/28/2014
• Issued: 04/26/2016
• Est. Priority Date: 02/21/2013
• Status: Active Grant

• Current Assignee: GFY Products, LLC
• Original Assignee: Einstein Noodles, LLC
• Inventors: Seeman, Daniel Jonathan, Privette, Dewey
• Primary Examiner(s): Bergin, James S
• Application Number:
  US14/194,322
• Publication Number:
  US 20150308804A1
• Time in Patent Office: 788 Days
• Field of Search: 102/430, 102/439, 102/444, 102/501, 102/502, 102/506, 102/517, 102/529
• US Class Current: 1/1
• CPC Class Codes: F42B 12/74 of the core or solid body
• 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 30/02 Bullets
• 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 33/001 Devices or processes for assembling ammunition, cartridges or cartridge elements from parts
• CPC Class Codes: F42B 5/02 Cartridges, i.e. cases with charge and missile

Abstract

A preferred projectile includes 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; and a curative agent by which the toughened polymer resin is cured; wherein the cured toughened polymer resin is in the shape of a bullet. The projectile preferably has an average density less than the density of lead. A preferred ammunition cartridge includes a propellant and the aforesaid projectile fixed in position relative to the propellant; and an 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.

Claims

1. A projectile comprising:

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

(b) a curative agent by which the toughened polymer resin is cured;

wherein the cured toughened polymer resin is in the shape of a bullet.

2. The projectile of claim 1, wherein the projectile has an average density less than the density of lead.

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

4. The projectile of claim 1, wherein the projectile has an average density that is less than 45 percent the density of lead.

5. The projectile of claim 1, wherein the projectile is substantially lead-free.

6. A cartridge including a casing and the projectile of claim 1, with the projectile projecting from an end of the casing.

7. The cartridge of claim 6 wherein the casing is formed from a material selected from the group consisting of brass, aluminum alloy and plastic.

8. An ammunition cartridge 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; and

(ii) a curative agent by which the toughened polymer resin is cured;

wherein the cured toughened polymer resin is in the shape of a bullet.

9. The cartridge of claim 8, further comprising a casing containing a primer, the propellant, and the projectile, with the projectile projecting from an end of the casing.

10. The cartridge of claim 8, wherein the projectile has an average density less than the density of lead.

11. The cartridge of claim 8, wherein the elastomer content is 40 percent by weight of the toughened polymer resin.

12. The cartridge of claim 8, wherein the projectile has an average density that is less than 45 percent the density of lead.

13. The cartridge of claim 8, further comprising a casing, wherein the projectile projects from an end of the casing.

14. The cartridge of claim 13 wherein the casing is formed from a material selected from the group consisting of brass, aluminum alloy and plastic.

15. The cartridge of claim 8, wherein the projectile is substantially lead-free.