Fluid-filled bomb-disrupting apparatus and method

• US 6,269,725 B1
• Filed: 08/02/1999
• Issued: 08/07/2001
• Est. Priority Date: 08/02/1999
• Status: Expired due to Term

• Current Assignee: National Technology & Engineering Solutions Of Sandia LLC (Honeywell International Inc.)
• Original Assignee: Sandia Corporation (Martin Marietta Corporation)
• Inventors: Cherry, Christopher R.
• Primary Examiner(s): Eldred, J. Woodrow
• Application Number:
  US09/366,285
• Time in Patent Office: 736 Days
• Field of Search: 86/50, 102/306, 102/308, 102/310, 102/475, 102/476, 89/11.3
• US Class Current: 86/50
• CPC Class Codes: F42B 1/02 Shaped or hollow charges blasting cartridges with cavities in the charge F42B3/08; oil winning using shaped-charge perforators E21B43/116
• CPC Class Codes: F42B 1/032 characterised by the material of the liner
• CPC Class Codes: F42B 33/062 by high-pressure water jet means

Abstract

An apparatus and method for disarming improvised bombs are disclosed. The apparatus comprises a fluid-filled bottle or container made of plastic or another soft material which contains a fixed or adjustable, preferably sheet explosive. The charge is fired centrally at its apex and can be adjusted to propel a fluid projectile that is broad or narrow, depending upon how it is set up. In one embodiment, the sheet explosive is adjustable so as to correlate the performance of the fluid projectile to the disarming needs for the improvised explosive device (IED). Common materials such as plastic water bottles or larger containers can be used, with the sheet explosive or other explosive material configured in a general chevron-shape to target the projectile toward the target.

In another embodiment, a thin disk of metal is conformably mounted with the exterior of the container and radially aligned with the direction of fire of the fluid projectile. Depending on the configuration and the amount of explosive and fluid used, a projectile is fired at the target that has sufficient energy to penetrate rigid enclosures from fairly long stand-off and yet is focused enough to be targeted to specific portions of the IED for disablement.

Claims

1. An apparatus for disabling explosive devices, comprising:

a container;

an explosive material disposed in said container arranged to form a chevron and to define at least first and second zones in said container; and

filler material in said zones, whereupon detonation of said explosive material, the filler material in said first zone is propelled through said container and against the explosive device.

2. The apparatus of claim 1, wherein said filler material is a fluid.

3. The apparatus of claim 2, wherein said fluid is selected from the group consisting essentially of:

water, flammable liquids, alcohol, clay, polymers and combinations thereof.

4. The apparatus of claim 1, wherein said container comprises a longitudinal axis;

the apex of said chevron coincides with said longitudinal axis.

5. The apparatus of claim 1, further compromising a detonating system connected to said explosive material.

6. The apparatus of claim 5, wherein said detonating system also connected midway on said apex as measured along said longitudinal axis.

7. The apparatus of claim 1, further comprising an adjustment on said explosive material to allow variation of the size of at least one zone prior to setting off said explosive material.

8. The apparatus of claim 7, wherein said explosive material comprises a sheet explosive mounted in said container so that one sheet can be moved with respect to another.

9. The apparatus of claim 8, wherein said sheets meet at an apex and at least one sheet is rotatable about said apex.

10. The apparatus of claim 9, wherein said apex is substantially aligned with a longitudinal axis of said container.

11. The apparatus of claim 10, wherein said apex coincides with said longitudinal axis of said container.

12. The apparatus of claim 7, wherein said adjustment allows the included angular displacement between different portions of said explosive material to be varied from about 45°

to about 180°

.

13. The apparatus of claim 7, wherein said adjustment further comprises a remotely operated motor driver.

14. The apparatus of claim 9, further comprising a detonating device connected at said apex.

15. The apparatus of claim 1, further including a metal disk conformably mounted with the exterior of the container.

16. The apparatus of claim 15, wherein, the metal disk is radially aligned with a direction of fire of the apparatus.

17. The apparatus of claim 1, wherein said filler material fills said container at the point of covering said explosive material completely.

20. The apparatus of claim 1, wherein said filler material fills the zones within said container so as to substantially cover said explosive material.

18. A method of defusing an explosive device, comprising:

a) dividing a container into at least two zones with an explosive material;

b) substantially filling said zones with a fluid filler material and substantially covering said explosive material;

c) detonating the explosive material; and

d) propelling said filler material from at least one of said zones towards the explosive device.

19. The method of claim 18, further comprising providing an adjustment feature to said explosive material to vary the volume of at least one of said zones.

21. An apparatus for disabling explosive devices, comprising:

a) a container;

b) an explosive material disposed in said container arranged to define at least first and second zones in said container;

a) means for varying the volume of at least one zone; and

d) filler material in said zones, whereupon detonation of said explosive material, the filler material in said first zone is propelled through said container and against the explosive device.

22. An apparatus for disabling explosive devices, comprising:

a) a container;

b) an explosive material disposed in said container to define at least first and second zones in said container; and

c) fluid material in said zones filling said zones and substantially covering said explosive material, whereupon detonation of said explosive material, the fluid material in said first zone is propelled through said container and against the explosive device.