Methods of utilizing projectiles

Patent metadata

Field	Value
Publication number	US-9752858-B2
Application number	US-201615141630-A
Country	US
Kind code	B2
Filing date	Apr 28, 2016
Priority date	Feb 1, 2013
Publication date	Sep 5, 2017
Grant date	Sep 5, 2017

Abstract

Charged projectile assemblies include a housing and an electronic assembly configured to produce an electric field about at least a portion of the housing of the projectile. Cartridge assemblies for use with firearms include charged projectiles. Methods of charging a projectile include forming an electric field about at least a portion of a projectile and extending the electric field at least partially between a forward portion of the projectile and an aft portion of the projectile.

First claim

What is claimed is:

1. A method of utilizing a projectile, the method comprising:
forming an electric field about at least a portion of a projectile with a forward conductive portion of the projectile and an aft conductive portion of the projectile; and
extending the electric field at least partially between the forward portion of the projectile and the aft portion of the projectile.

2. The method of claim 1 , further comprising launching the projectile.

3. The method of claim 2 , further comprising initiating the electric field after the projectile is launched.

4. The method of claim 2 , further comprising initiating the electric field before or during the launching of the projectile.

5. The method of claim 1 , wherein forming an electric field about at least a portion of a projectile comprises discharging a capacitor within the projectile.

6. The method of claim 5 , further comprising delaying the discharge of the capacitor within the projectile with a time delay device.

7. A method of utilizing a projectile, the method comprising:
discharging an electrical power source electrically coupled to at least one of a first electrically conductive region proximate a forward portion of a projectile and a second electrically conductive region proximate an aft portion of the projectile; and
producing an electric field about the projectile at least partially between the first electrically conductive region and the second electrically conductive region of the projectile.

8. The method of claim 7 , further comprising selecting the first electrically conductive region proximate the forward portion of the projectile and the second electrically conductive region proximate the aft portion of the projectile to both be electrically coupled to the electrical power source.

9. The method of claim 8 , wherein discharging an electrical power source comprises selectively electrically connecting the electrical power source comprising a capacitor to the first conductive region and the second conductive region.

10. The method of claim 8 , wherein discharging an electrical power source comprises applying potentials of opposite polarity to the first conductive region and the second conductive region.

11. The method of claim 7 , further comprising delaying the discharging the electrical power source with a time delay.

12. The method of claim 7 , further comprising imparting an initial velocity to the projectile with a reactive material disposed in a case associated with the projectile.

13. The method of claim 12 , further comprising:
initiating a pyrotechnic time delay with the reactive material within the case; and
discharging the electrical power source with the pyrotechnic time delay.

14. The method of claim 7 , further comprising firing the projectile with a sniper rifle.

15. A method of utilizing a projectile of a cartridge assembly, the method comprising:
launching a projectile of a cartridge assembly from a case of the cartridge assembly having a reactive material disposed therein; and
producing an electric field with an electronic assembly of the cartridge assembly about at least a portion of the projectile between a first electrically conductive region proximate a forward portion of the projectile and a second electrically conductive region during flight of the projectile and before the charged projectile reaches an intended target.

16. The method of claim 15 , further comprising producing the electric field after the projectile is separated from the case by the reactive material.

17. The method of claim 15 , further comprising initiating production of the electric field with the reactive material within the case.

18. The method of claim 15 , further comprising extending the electric field over a dielectric portion of the projectile that separates the first electrically conductive region from the second electrically conductive region.

19. The method of claim 15 , further comprising delaying formation of the electric field with a dielectric coating on an exterior portion of projectile.

20. The method of claim 19 , further comprising removing the dielectric coating on the exterior portion of projectile during the launching of the projectile.

Assignees

• Orbital Atk Inc

Inventors

• Krauss Otto S
• Westbrook Iii John W

Classifications

• F42B10/32

  Range-reducing or range-increasing arrangements; Fall-retarding means · CPC title

• F42B10/38 Primary

  Range-increasing arrangements (F42B10/34, F42B14/06 {and F42B15/105} take precedence) · CPC title

• F42B30/00

  Projectiles or missiles, not otherwise provided for, characterised by the ammunition class or type, e.g. by the launching apparatus or weapon used (F42B10/00, F42B12/00, F42B14/00 take precedence) · CPC title

• F42B5/02

  Cartridges, i.e. cases with charge and missile · CPC title

• F42B12/00

  Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material (F42B6/00, F42B10/00, F42B14/00 take precedence; for practice or training F42B8/12, F42B8/28; self-propulsion or guidance aspects F42B15/00) · CPC title