Liquid disruptor device, method of manufacturing the same, and liquid disruptor device module

Patent metadata

Field	Value
Publication number	US-9958245-B1
Application number	US-201715603643-A
Country	US
Kind code	B1
Filing date	May 24, 2017
Priority date	May 24, 2017
Publication date	May 1, 2018
Grant date	May 1, 2018

Abstract

A liquid disruptor device and a method of manufacturing the same are introduced. The liquid disruptor device comprises a front casing, a liquid seal film, a rear casing, a plane wave generator and a counter-impact cover. The plane wave generator generates a plane blast wave which compresses a liquid contained in the front casing and a liner to not only focus blast energy of the liquid but also allow the liquid to form a liquid knife current for destroying explosives. Hence, the liquid disruptor device displays higher efficiency per unit weight of explosives when detonation thereof occurs at multiple points. Further, a liquid disruptor device module inclusive of at least two liquid disruptor devices combined to assume a geometric shape is introduced.

First claim

What is claimed is:

1. A liquid disruptor device, comprising:
a front casing, comprising:
a liner formed by bending an upright plate lengthwise, backward;
an enclosing wall formed by extending an edge of the liner backward by a distance;
a front casing chamber defined by the liner and the enclosing wall and adapted to contain a liquid; and
a front casing opening in communication with an outside of the front casing and the front casing chamber;

a liquid seal film for closing the front casing opening of the front casing;
a rear casing coupled to the front casing from behind, the rear casing comprising:
an outer casing wall;
an outer casing wall chamber defined by the outer casing wall and adapted to contain explosives and blowback weights;
an outer casing wall opening in communication with an outside of the rear casing and the outer casing wall chamber;
an inner casing wall disposed in the outer casing wall chamber;
an inner casing wall chamber defined by the inner casing wall and adapted to receive a detonator; and
an inner casing wall opening in communication with an outside of the rear casing and the inner casing wall chamber;

a plane wave generator disposed between the front casing and the rear casing, the plane wave generator comprising:
a plate having a plate surface and a groove, with the groove disposed on the plate surface and adapted to contain the explosives; and

a counter-impact cover, comprising:
a lid for closing the outer casing wall opening of the rear casing; and
a through hole disposed on the lid to penetrate the lid and corresponding in position to the inner casing wall opening of the rear casing.

2. The liquid disruptor device of claim 1 , wherein the front casing, the liquid seal film, the rear casing, the plane wave generator and the counter-impact cover are made of a flexible material.

3. The liquid disruptor device of claim 1 , wherein a cross section attributed to the liner and perpendicular to a lengthwise direction of the liner is of a tall V-shape.

4. The liquid disruptor device of claim 1 , wherein a cross section of the liquid disruptor device is of a specific radially-extending-shape and is defined by at least three arms.

5. The liquid disruptor device of claim 2 , wherein a cross section of the liquid disruptor device is of a specific radially-extending-shape and is defined by at least three arms.

6. The liquid disruptor device of claim 3 , wherein a cross section of the liquid disruptor device is of a specific radially-extending-shape and is defined by at least three arms.

7. The liquid disruptor device of claim 4 , wherein included angles between the arms are variable.

8. The liquid disruptor device of claim 5 , wherein included angles between the arms are variable.

9. The liquid disruptor device of claim 6 , wherein included angles between the arms are variable.

10. A liquid disruptor device module, comprising at least two said liquid disruptor devices of claim 1 .

11. The liquid disruptor device module of claim 10 , wherein the liquid disruptor devices combine and thereby take on a geometric shape.

12. A method of manufacturing a liquid disruptor device, comprising the steps of:
(a) providing a front casing, the front casing comprising:
a liner formed by bending an upright plate lengthwise, backward;
an enclosing wall formed by extending an edge of the liner backward by a distance;
a front casing chamber defined by the liner and the enclosing wall; and
a front casing opening in communication with an outside of the front casing and the front casing chamber;

(b) introducing a liquid into the front casing chamber of the front casing;
(c) providing a liquid seal film, followed by closing the front casing opening of the front casing with the liquid seal film;
(d) providing a plane wave generator, the plane wave generator comprising:
a plate having a plate surface and a groove, with the groove formed on the plate surface;

(e) placing explosives in the groove of the plane wave generator, following by placing the plane wave generator behind the front casing;
(f) providing a rear casing, the rear casing comprising:
an outer casing wall;
an outer casing wall chamber defined by the outer casing wall;
an outer casing wall opening in communication with an outside of the rear casing and the outer casing wall chamber;
an inner casing wall disposed in the outer casing wall chamber;
an inner casing wall chamber defined by the inner casing wall; and
an inner casing wall opening in communication with an outside of the rear casing and the inner casing wall chamber;

(g) placing the explosives and blowback weights in the outer casing wall chamber of the rear casing;
(h) providing a counter-impact cover, the counter-impact cover comprising:
a lid; and
a through hole formed on the lid to penetrate the lid;

(i) closing the outer casing wall opening of the rear casing with the lid of the counter-impact cover so that the through hole of the counter-impact cover corresponds in position to the inner casing wall opening of the rear casing;
(j) coupling the rear casing to the front casing from behind so that the plane wave generator is disposed between the front casing and the rear casing; and
(k) inserting a detonator into the inner casing wall chamber of the rear casing.

13. The method of claim 12 , wherein a cross section attributed to the liner and perpendicular to a lengthwise direction of the liner is of a tall V-shape.

14. The method of claim 12 , wherein a cross section of the liquid disruptor device is of a specific radially-extending-shape and is defined by at least three arms.

Assignees

• Nat Chung Shan Inst Science & Tech

Inventors

• Shih Chia-Nan
• Yang Hong-Chih
• Tsai Lin-Chien
• Huang Po-Chang
• Huang Guei-Jang
• Chiu Min-Han

Classifications

• F42B33/062 Primary

  by high-pressure water jet means · CPC title

• F41B9/0046

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