Device for the disruption of explosive objects

• US 20020096079A1
• Filed: 01/26/2001
• Published: 07/25/2002
• Est. Priority Date: 01/19/2001
• Status: Active Grant

• Current Assignee: Alford IP Limited
• Original Assignee: Sidney Christopher Alford
• Inventors: Alford, Sidney Christopher
• Granted Patent: US 6,584,908 B2
• Time in Patent Office: Days
• US Class Current: 102/475
• CPC Class Codes: F41B 9/0046 Disruptors, i.e. for neutralising explosive devices
• CPC Class Codes: F42B 3/08 with cavities in the charge, e.g. hollow-charge blasting cartridges

Abstract

A disrupter has a plastic box 1 with three semi-cylindrical plastic formers 2 each with a bag 4 containing water. Sheet explosive 13 is applied to the back of the formers.

Bags 4 may be filed with materials other than water, for example decontaminent e.g. sodium hypochlorite.

The formers may be replaced by a single former with three recesses.

Claims

1. A device for generating a liquid jet, the device comprising an enclosure containing a plurality of formers, each defining a cavity partially enclosed by the former, each of the formers supporting an explosive charge, and a filler material within the cavity, the filler material being a liquid, a gel or a non-metallic solid that will liquefy upon detonation of the device.

8. A device according to claim 1 wherein the filler material is contained in a flexible bag.

9. A device according to claim 8 wherein the or each explosive charge, former and bag are placed within the enclosure, the explosive charge and its former being placed within the bag.

10. A device according to claim 8 wherein the explosive charge, the former and the bag are placed within an outer enclosure, the explosive charge and its former being placed within a fold of the bag.

11. A device according to claim 8 comprising an outer case within which are positioned the explosive charge, the former, the bag within the cavity and a second bag containing filler material positioned at the opposite side of the former to the cavity, within the outer enclosure.

12. A device according to claim 8 wherein the former is semi-cylindrical former and the explosive charge is applied to one or both of the inner and outer surfaces of the bag.

13. A device according to claim 12 wherein the explosive charge is a detonating cord secured to the surface or surfaces.

14. A device according to claim 13 wherein crenations are provided at opposite ends of the former and the detonating cord is passed longitudinally to and from through notches and round projections of the crenations at each end.

15. A device according to claim 12 wherein the detonating cord is also passed along the inside of the former.

16. A device according to claim 14 wherein the notches between some of the projections are left empty, thereby using less detonating cord thus providing lighter loads.

17. A device according to claim 1 wherein the explosive charge is sheet explosive stuck by an adhesive or double-sided sticky tape to the former.

18. A device according to claim 1 wherein the or each flexible bag is contained within an outer container and filled through nozzles projecting from the container.

19. A device according to claim 1 wherein the formers and/or an outer enclosure comprise different filler materials.

2. A device for generating a liquid jet, the device comprising an enclosure containing a former with a plurality of cavities each partially enclosed and supporting an explosive charge, and a filler material within each cavity, the filler material being a liquid, a gel or a non-metallic solid that will liquefy upon detonation of the device.

5. A device according claim 2, wherein the filler material is pressed or melt-cast solid material.

6. A device according to claim 2, wherein the filler material is disodium hydrogen phosphate dodecahydrate.

7. A device according to claim 2 wherein the filler material is sodium bicarbonate.

3. A device for generating a liquid jet, the device comprising an enclosure containing at least one former defining a cavity partially enclosed by the former supporting an explosive charge and a filler material within the cavity, wherein the filler material is a decontaminant.

4. A device according to claim 3 wherein the decontaminant comprises sodium hypochlorite.