Neutralization chemical injection penetrator

• US 6,401,591 B1
• Filed: 01/04/2001
• Issued: 06/11/2002
• Est. Priority Date: 01/04/2001
• Status: Expired due to Fees

• Current Assignee: the united states of america as represented by the secretary of the navy
• Original Assignee: the united states of america as represented by the secretary of the navy
• Inventors: Ross, Jonathan R., Carlson, Victor J.
• Primary Examiner(s): Carone, Michael J.
• Assistant Examiner(s): BUCKLEY, DENISE J
• Application Number:
  US09/755,689
• Publication Number:
  US 20020083822A1
• Time in Patent Office: 523 Days
• Field of Search: 891/13, 102/402, 102/293, 102/512, 102/426, 86/50, 86/49
• US Class Current: 89/1.13
• CPC Class Codes: F42B 12/46 for dispensing gases, vapours, powders or chemically-reactive substances F42B12/70 takes precedence
• CPC Class Codes: F42B 33/06 Dismantling fuzes, cartridges, projectiles, missiles, rockets or bombs F42B33/004 and F42B33/04 take precedence; elimination of undesirable components of explosives C06B21/0091

Abstract

The present invention comprises a device for clearing mines comprising a housing assembly with a chamber therein that carries a surface contact chemical that is capable of consuming the explosive fill within a mine. A nose assembly is attached to the housing assembly. The nose assembly separates from the housing assembly when the device contacts a solid mass. The nose assembly is capable of penetrating a mine housing and contacting the mine explosive fill sufficiently to expose the fill whereby the surface contact chemical can consume the fill. The present invention also includes a method of using a plurality of such devices in order to conduct a mine clearance operation in a surf zone or on a beach.

Claims

1. A clearance device for containers having a hazardous fill, comprising:

a housing assembly comprising a chamber therein;

a surface contact chemical within the chamber; and

,

a nose assembly, capable of penetrating the container, connected to the housing assembly, wherein when the device is propelled toward the container creating momentum, the nose assembly separates from the housing assembly upon contact with a solid mass, the nose assembly penetrates the container using only the momentum and contacts the hazardous fill, exposing the hazardous fill so the surface contact chemical, which flows forward due to stopping the momentum of the nose assembly, contacts the hazardous fill, causing the hazardous fill to be consumed.

2. The clearance device of claim 1, comprising a device mass, wherein the nose assembly comprises a mass of about 50 percent or more of the device mass.

3. The clearance device of claim 2, wherein the nose assembly comprises a blunt tip to reduce drag through water.

4. The clearance device of claim 1, wherein the housing assembly shatters when the device contacts a solid mass.

5. The clearance device of claim 1, wherein the housing assembly comprises a plastic material.

6. The clearance device of claim 1, wherein the surface contact chemical is selected from the group consisting of amines, metal alkyls, interhalogens, or bases.

7. The clearance device of claim 6, wherein the surface contact chemical is selected from the group consisting of potassium hydroxide, diethylene triamine, diethylzinc, bromine triflouride, or diethylenetriamine.

8. The clearance device of claim 2, wherein the device mass comprises from about 25 grams to about 100 grams.

9. The clearance device of claim 8, wherein the device comprises a length of about 6 inches.

10. The clearance device of claim 9, wherein the device comprises a diameter of less than about 0.8 inches.

11. The clearance device of claim 1, further comprising fins connected to the housing assembly.

12. The mine clearance device of claim 1, further comprising:

a second nose assembly within the chamber, capable of penetrating the mine housing, defining a second chamber, the second chamber filled with the surface contact chemical, wherein the second nose assembly separates from the housing assembly upon contact with a second solid mass wherein the second nose assembly penetrates a buried container and contacts a hazardous fill, exposing the buried hazardous fill so the surface contact chemical contacts the buried hazardous fill, causing the buried hazardous fill to be consumed.

13. The clearance device of claim 1, further comprising:

a rear end of the housing assembly, substantially opposite of the nose assembly;

a stopper located proximate to the rear end, having an area sufficient to substantially fill a cross-section of the chamber; and

,

a connector that connects the stopper to the nose assembly wherein the stopper pushes the surface contact chemical toward the hazardous fill.

14. The clearance device of claim 13, further comprising at least one orifice on the housing assembly, wherein the nose assembly moves along the connector and crushes the housing assembly upon contact with a solid mass.

15. The clearance device of claim 13, further comprising at least one orifice on the housing assembly, wherein the connector comprises a stretched spring that decompresses when the nose assembly contacts a solid mass and pulls the stopper toward the nose assembly.

16. The clearance device of claim 1, further comprising means for propulsion connected to the housing assembly.

17. A clearance device for mines having a mine housing and an energetic fill, comprising:

a housing assembly having a chamber therein;

a surface contact chemical comprising diethylenetriamine within the chamber;

a nose assembly, having a blunt tip and comprising a mass of about 50 percent or greater than the device mass, wherein when the device is propelled toward a mine creating momentum, the nose assembly separates from the housing assembly upon contact with a solid mass, the nose assembly penetrates the mine housing using only the momentum and contacts the energetic fill, exposing the energetic fill so the surface contact chemical, which flows forward due to stopping the momentum of the nose assembly, contacts the energetic fill, consuming the energetic fill.

18. The clearance device of claim 17, wherein the housing assembly comprises a length of about 6 inches and a diameter of about 0.5 inches.

19. A method of clearing an area containing multiple mines having mine housings and explosive fills, comprising the steps of:

obtaining a plurality of devices comprising a housing assembly having a chamber therein, a surface contact chemical comprising diethylenetriamine within the chamber, a nose assembly, having a blunt tip and comprising a mass of about 50 percent or greater than the device mass, wherein when the device is propelled toward a mine creating momentum, the nose assembly separates from the housing assembly upon contact with a solid mass, the nose assembly penetrates the mine housing using only the momentum and contacts the energetic fill, exposing the energetic fill so the surface contact chemical, which flows forward due to stopping the momentum of the nose assembly, contacts the energetic fill, causing the energetic fill to be consumed; and

,

propelling the plurality of devices toward the area containing the multiple mines wherein the energetic fills are all consumed.