Apparatus and methods for disrupting/disabling explosive ordnance

Patent metadata

Field	Value
Publication number	US-11506465-B1
Application number	US-202016873856-A
Country	US
Kind code	B1
Filing date	Jul 30, 2020
Priority date	Jul 30, 2020
Publication date	Nov 22, 2022
Grant date	Nov 22, 2022

Abstract

Explosive devices may be formed from hollow members filled with explosive materials. The hollow members may be made of mating halves that are packed or loaded with explosive material prior to the mating halves being joined together. In some exemplary aspects, the hollow members are placed in fluid-filled containers such that the explosive reaction creates a wave of fluid that impacts a target. Components of the devices may be COTS items and items that may be manufacture with 3D printers.

First claim

What is claimed is:

1. An explosive device, comprising:
a hollow cylindrical tube having a mating pair of semi-cylindrical halves,
wherein the hollow cylindrical tube includes opposing ends of lesser outside diameter than an outside diameter of the remainder of the tube,
wherein the hollow cylindrical tube includes a pair of spaced-apart flanges formed on an interior surface thereof, each flange including a central opening therein, and
wherein the hollow cylindrical tube includes first and second sleeves disposed over the lesser diameter opposing ends of the tube to hold the semi-cylindrical halves together;
explosive material being disposed in the hollow cylindrical tube between the pair of spaced-apart flanges; and
a length of detonation cord extending from inside one of the pair of spaced-apart flanges, through the central opening of the one of the pair of flanges and through one of the first and second sleeves to a point that is exterior to the explosive device.

2. The device of claim 1 , wherein the explosive material is at least one of one of C-4, and flexible rubberized explosive.

3. The device of claim 1 , further comprising a blasting cap being connected to the detonation cord at the point that is exterior to the explosive device.

4. The device of claim 1 , wherein the opposing ends have external threads that engage internal threads of respective ones of the first and second sleeves.

5. The device of claim 1 , wherein the first and second sleeves form a friction fit with the opposing ends.

6. The device of claim 1 , wherein the explosive material fills an entire volume of the hollow tube between the pair of spaced-apart flanges.

7. The device of claim 1 , further comprising at least one hollow spacer disposed in the hollow tube between the pair of spaced-apart flanges, wherein the explosive material fills a remaining volume between the pair of spaced-apart flanges.

8. The device of claim 7 , wherein said at least one of the hollow spacer extends an entire length between the pairs of spaced-apart flanges and the explosive material forms an annular cylinder around the hollow spacer.

9. The device of claim 1 , further comprising a shock impedance barrier in the form of an annular cylinder being disposed between the spaced-apart flanges, wherein the explosive material is disposed in a center opening of the annular cylinder.

10. The device of claim 9 , wherein the annular cylinder has an outside diameter that extends to an inside diameter of the hollow tube.

11. The device of claim 1 , wherein one of the first and second sleeves includes a V-shaped groove formed in an end distal the hollow cylindrical tube, and wherein the V-shaped groove configured to mate with a V-shaped projection formed on a bottom interior surface of a COTS one gallon jug.

12. The device of claim 11 , wherein the other of the first and second sleeves includes a threaded central opening formed in an end distal the hollow cylindrical tube, and wherein the threaded central opening configured to receive an externally threaded portion of a cable gland.

13. The device of claim 11 , further comprising the COTS one gallon jug wherein the hollow tube is vertically disposed in the jug and the V-shaped projection of the jug is disposed in the V-shaped groove of the one of the first and second sleeves, wherein the other of the first and second sleeves includes a threaded central opening formed in an end distal the hollow cylindrical tube, and wherein the threaded central opening configured to receive an externally threaded portion of a cable gland.

14. The device of claim 11 , further comprising the COTS one gallon jug, wherein the hollow tube is vertically disposed in the jug and the V-shaped projection of the jug is disposed in the V-shaped groove of the one of the first and second sleeves, wherein the other of the first and second sleeves includes a threaded central opening formed in an end distal the hollow cylindrical tube, and wherein the threaded central opening configured to receive an externally threaded portion of a cable gland;
a cap being fixed to a top opening of the jug, wherein the cable gland extends through the cap and into the threaded central opening of the other of the first and second sleeves; and
a length of detonation cord extending from inside one of the pair of spaced-apart flanges, through the central opening of the flange, through the other of the first and second sleeves and through the cable gland to a point that is exterior to the explosive device.

15. The device of claim 11 , further comprising the COTS one gallon jug, wherein the hollow tube is vertically disposed in the jug and the V-shaped projection of the jug is disposed in the V-shaped groove of the one of the first and second sleeves, wherein the other of the first and second sleeves includes a threaded central opening formed in an end distal the hollow cylindrical tube, and wherein the threaded central opening configured to receive an externally threaded portion of a cable gland; and
a fluid being disposed in the jug, wherein the fluid surrounds the hollow tube.

16. The device of claim 11 , further comprising the COTS one gallon jug, wherein the hollow tube is vertically disposed in the jug and the V-shaped projection of the jug is disposed in the V-shaped groove of the one of the first and second sleeves, wherein the other of the first and second sleeves includes a threaded central opening formed in an end distal the hollow cylindrical tube, and wherein the threaded central opening configured to receive an externally threaded portion of a cable gland; and
a fluid being disposed in the jug, wherein the fluid surrounds the hollow tube, and wherein the hollow tube extends into a neck portion of the jug.

17. The device of claim 16 , further comprising the COTS one gallon jug, wherein the hollow tube is vertically disposed in the jug and the V-shaped projection of the jug is disposed in the V-shaped groove of the one of the first and second sleeves, wherein the other of the first and second sleeves includes a threaded central opening formed in an end distal the hollow cylindrical tube, and wherein the threaded central opening configured to receive an externally threaded portion of a cable gland;
a fluid being disposed in the jug, wherein the fluid surrounds the hollow tube, and wherein the hollow tube extends into a neck portion of the jug; and
a blasting cap being connected to the detonation cord at the point exterior to the explosive device.

18. The device of claim 1 , wherein each one of the mating pair of semi-cylindrical halves includes a male semi-cylindrical portion and a female semi-cylindrical portion, the male semi-cylindrical portion including a reduced diameter section at one end thereof that is inserted in the female semi-cylindrical portion and the female semi-cylindrical portion including a flange formed on an interior surface thereof which the reduced diameter section of the male portion abuts.

19. The device of claim 18 , wherein the explosive material fills an entire volume of the hollow tube between the pair of spaced-apart flanges.

20. The device of claim 18 , further comprising one or more hollow spacers disposed in the hollow tube between the pair of spaced-apart flanges wherein the explosive material fills a remaining volume between the pair of spaced-apart flanges.

21. The device of claim 18 , further comprising at least one hollow spacer disposed in the hollow tube between the pair of spaced-apart flanges, wherein the exp

Assignees

• Us Navy

Inventors

• Foltz Lee
• Pegouske Adam J
• Mccarthy Daniel
• Torres George R

Classifications

• F42D5/04

  Rendering explosive charges harmless, e.g. destroying ammunition ({F42B39/14 and F42B39/20 take precedence } ; extracting primers, dismantling ammunition F42B33/04, F42B33/06 {; chemical deactivating of explosives C06B21/0091}); Rendering detonation of explosive charges harmless · CPC title

• F42B33/06

  Dismantling fuzes, cartridges, projectiles, missiles, rockets or bombs ({F42B33/004 and} F42B33/04 take precedence; {elimination of undesirable components of explosives C06B21/0091}) · CPC title

• F42B3/24

  Cartridge closures or seals (top closures for shotgun ammunition cartridges F42B7/12) · CPC title

• F41B9/0046 Primary

  Disruptors, i.e. for neutralising explosive devices · CPC title

• F42D1/043

  Connectors for detonating cords and ignition tubes, e.g. Nonel tubes (mounting of detonators in blasting cartridges F42B3/26) · CPC title