WO2004005838A1 - Dispositif pour desamorcer des explosifs - Google Patents

Dispositif pour desamorcer des explosifs Download PDF

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Publication number
WO2004005838A1
WO2004005838A1 PCT/AU2003/000875 AU0300875W WO2004005838A1 WO 2004005838 A1 WO2004005838 A1 WO 2004005838A1 AU 0300875 W AU0300875 W AU 0300875W WO 2004005838 A1 WO2004005838 A1 WO 2004005838A1
Authority
WO
WIPO (PCT)
Prior art keywords
projectile
propellant
firing device
chamber
barrel
Prior art date
Application number
PCT/AU2003/000875
Other languages
English (en)
Inventor
Roger Clyde Webb
Original Assignee
Poly Systems Pty Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Poly Systems Pty Ltd filed Critical Poly Systems Pty Ltd
Priority to AU2003243821A priority Critical patent/AU2003243821A1/en
Publication of WO2004005838A1 publication Critical patent/WO2004005838A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41B—WEAPONS FOR PROJECTING MISSILES WITHOUT USE OF EXPLOSIVE OR COMBUSTIBLE PROPELLANT CHARGE; WEAPONS NOT OTHERWISE PROVIDED FOR
    • F41B11/00—Compressed-gas guns, e.g. air guns; Steam guns
    • F41B11/50—Magazines for compressed-gas guns; Arrangements for feeding or loading projectiles from magazines
    • F41B11/57—Electronic or electric systems for feeding or loading
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41B—WEAPONS FOR PROJECTING MISSILES WITHOUT USE OF EXPLOSIVE OR COMBUSTIBLE PROPELLANT CHARGE; WEAPONS NOT OTHERWISE PROVIDED FOR
    • F41B11/00—Compressed-gas guns, e.g. air guns; Steam guns
    • F41B11/70—Details not provided for in F41B11/50 or F41B11/60
    • F41B11/71—Electric or electronic control systems, e.g. for safety purposes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41B—WEAPONS FOR PROJECTING MISSILES WITHOUT USE OF EXPLOSIVE OR COMBUSTIBLE PROPELLANT CHARGE; WEAPONS NOT OTHERWISE PROVIDED FOR
    • F41B11/00—Compressed-gas guns, e.g. air guns; Steam guns
    • F41B11/60—Compressed-gas guns, e.g. air guns; Steam guns characterised by the supply of compressed gas
    • F41B11/62—Compressed-gas guns, e.g. air guns; Steam guns characterised by the supply of compressed gas with pressure supplied by a gas cartridge
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B12/00—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material
    • F42B12/02—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect
    • F42B12/36—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B33/00—Manufacture of ammunition; Dismantling of ammunition; Apparatus therefor
    • F42B33/06—Dismantling fuzes, cartridges, projectiles, missiles, rockets or bombs
    • F42B33/062—Dismantling fuzes, cartridges, projectiles, missiles, rockets or bombs by high-pressure water jet means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42D—BLASTING
    • F42D5/00—Safety arrangements
    • F42D5/04—Rendering explosive charges harmless, e.g. destroying ammunition; Rendering detonation of explosive charges harmless

Definitions

  • the present invention relates to a projectile firing device, and more particularly to such a device that uses a propellant that is initially stored in a liquid phase and undergoes a phase change to a highly dense gas to effect propulsion of the projectile.
  • the present invention is a device to disarm or disrupt an explosive device or mechanism.
  • a common prior art device to disrupt and/or disarm an explosive device in urban locations is a "remotely activated kinetic energy device” (or RAKED), which itself utilises an explosive charge to fire a body of water or "water projectile” at an explosive device.
  • RAKED remotely activated kinetic energy device
  • FIG.l A RAKED of this type is shown in Fig.l comprising a body 1, carrying an explosive charge 2 near rear end cap 3, which is connected to detonator wires 4.
  • a projectile holder 5 that carries water projectile 6 and rear sealing plug 9.
  • the front-end cap 7 carries a seal 8.
  • When explosive charge 2 is detonated the released energy urges water projectile 6 forwardly through seal 8.
  • Such a RAKED is suitable where postal packages or soft targets are suspect explosive devices.
  • the RAKED is placed in a position to destroy the power source (battery) or wiring, depending on the device technology, so the main circuit board may be targeted.
  • a ceramic compound projectile is used to remove one of the pipe caps and in doing so may spin the pipe causing the pipe contents to spill by the centrifugal force.
  • This known RAKED suffers from a number of disadvantages. Firstly, where an explosive device is placed into a soft vinyl layered bag or leather briefcase, the water projectile from the RAKED cannot enter through these materials, and the material absorbs the impact. This may result in a non-controlled explosive detonation. A second disadvantage is that the RAKED must be placed in very close proximity to the suspect explosive device, placing the operator in significant danger. A third disadvantage is that water-based projectile is destructive and grossly inaccurate.
  • the present invention is a projectile firing device comprising: an elongate barrel through which a projectile is fired; said projectile being adapted to be propelled by a gas propellant, characterised in that said propellant is initially stored as liquid and adapted to be heated by a heating means which induces a phase change such that said propellant becomes a highly dense gas.
  • said projectile firing device comprises at least one chamber for holding said highly dense gas propellant, said chamber being in fluid communication with said barrel via a valve means adapted to release said highly dense gas propellant to fire said projectile held in said barrel, and a reservoir located remote from said chamber for storing said propellant in its initial liquid state, and a means for introducing said propellant in its liquid state from said reservoir into said chamber.
  • said device comprises an electronic control unit, which controls the ingress of the propellant in its liquid state from the reservoir to said chamber and controls the heating means used to heat said propellant.
  • said device comprises at least one chamber for holding said highly dense gas propellant, said chamber being in fluid communication with said barrel via a burst disc adapted to burst and release said highly dense gas propellant to fire said projectile held in said barrel, and a reservoir located remote from said chamber for storing said propellant in its initial liquid state, and a means for introducing said propellant in its liquid state from said reservoir into said chamber.
  • said device is a device for disarming an explosive device.
  • said projectile contains a gel impregnated with an abrasive agent.
  • said abrasive agent comprises any one or more of glass, silicone, bentonite, polymer or ceramic.
  • said projectile comprises a plastic casing.
  • said propellant is adapted to exit said barrel and act as an extinguishing agent and/or cooling agent.
  • a shaped discharge nozzle is fitted to the free end of said barrel.
  • said device is a cutting device.
  • said cutting device is adapted for cutting out motor vehicle locks.
  • said propellant is carbon dioxide.
  • Fig. 1 is a cross-sectional view of a prior art "RAKED" disarming device.
  • Fig. 2 is a schematic cross-sectional elevation view of an embodiment of a disarming device according to the present invention.
  • Figs 3(a)-(b) are embodiments of projectiles suitable for use with the disarming device of Fig. 2.
  • Fig. 4 is an enlarged schematic partial sectional view of an embodiment of a cutting nozzle that may be fitted to the disarming device of Fig. 1.
  • Fig. 2 depicts a disarming device 201 in an embodiment of the present invention.
  • Disarming device 201 is a tool for disarming explosive devices.
  • Disarming device 201 comprises a reservoir 202 of liquid carbon dioxide (CO 2 ) relying on a phase change to a "super critical fluid" or" highly dense gas” as the explosive energy to expel or fire a gel projectile 223 from barrel 208.
  • Disarming device 201 comprises a high-pressure chamber 204, in which liquid CO 2 is induced to change its phase to a highly dense gas.
  • the high- pressure chamber 204 is in fluid communication with barrel 208 via a gas lock-off valve 224.
  • the heating of the CO 2 is achieved by a heating element 225 powered by battery pack 226.
  • High-pressure chamber 204 is encapsulated by a thermal-barrier 209.
  • the CO 2 propellant which is a high order cold inert explosive propellant, does not promote the explosive in the suspect package to high order detonate.
  • a further advantage of the CO 2 propellant is that as it exits barrel 202 it also acts as an extinguishing agent and/or cooling agent.
  • disarming device 201 is remotely operated by a coded infra-red micro beam unit (not shown). This negates the need for wire connections.
  • the infra-red signal being isolated from any outside interfering signals is safe to operate remotely.
  • Figs. 3(a)-(b) depict projectiles 223 in 20mm and 5mm calibres.
  • These projectiles 223 are gel 230, impregnated with fine particle glass, silicone, bentonite and ceramic abrasive agent, contained in a polymer plastic casing 240 or some other inert material.
  • a piston 235 is located at the rear of the projectile 223.
  • the combination of gel 230 and plastic casing 240 allows the mass of the projectile 223 to stay in one body form, dispersing like a body of water when it meets end of barrel air resistance. Alternatively in another embodiment it may be supplied in a thin membrane coating for ease of loading.
  • the projectile 223 has the ability to cut through shock absorbing material such as leather and metal.
  • the projectiles 223 of the present embodiment may typically be supplied in varying calibres from 3mm to 20mm.
  • the advantage of the varying calibres is that it allows a smaller area to be targeted for accurate disrupting and will not destroy the whole package thereby minimising destruction of critical forensic evidence.
  • disarming device 201 may be supplied with a shaped discharge nozzle 250 as shown in Fig. 4, to allow an accurately shaped cut to be made in all materials.
  • Nozzle 250 is shaped in such a manner that gel 230a exits as a thin sheet of rectangular cross- section. This is advantageous as bomb packages are getting progressively "high tech” in their design sophistication, such as employing tremor sensors, magnetic signature sensors, multiple circuitry and power supplies. Therefore, it is necessary to enter a device more accurately to cut single wires and/or circuit chips with the least amount of violent intrusion.
  • Disarming device 201 fitted with a shaped discharge nozzle can also be used to disarm/disrupt limpet mines (used to damage ships) where it is necessary to cut through the metal case of the primer/detonator. Presently nothing will perform this task without the probability of high order detonation occurring.
  • a disarming device 201 fitted with a shaped discharge nozzle 250 may also be used as a cutting device to cut out motor vehicle door locks.
  • a shaped explosive charge is used which can result in the vehicle catching fire, ultimately resulting in a high order detonation of the vehicle.
  • the disarming device 201 of the present embodiment has advantages over the prior art RAKED devices, in that it is lightweight, accurate, less violent, inert, and has a negligible magnetic signature. Furthermore it can be operated up to 20m from target thereby making it safer for an operator.
  • valve 224 depicted in the above mentioned embodiment may be replaced by another fluid release means, such as a burst disc arrangement.
  • the heating element 225 may be replaced by another heating means, such as a pyrotechnic heating means induction heating means.
  • the polymer plastic casing 240 may be dispensed with and the projectile comprises an "abrasive gel" similar to the earlier described embodiment that may be poured into the end of the disarming device as a free gel.
  • the abrasive gel may be held in barrel 208 by front and rear retaining devices.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Manufacturing & Machinery (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)

Abstract

L'invention concerne un dispositif de d'amorçage de projectiles (201) comprenant un canon allongé (208) à travers lequel le projectile (223) est amorcé. Un gaz propulseur est utilisé pour amorcer un projectile (223). Ledit propulseur est stocké initialement sous forme liquide dans un réservoir (202) et chauffé dans une chambre haute pression (204) par des moyens de chauffage (225), de sorte qu'un changement de phase est induit et que le propulseur devient un gaz très dense. Ledit propulseur est de préférence du dioxyde de carbone (CO2) qui est chauffé à une température critique de 31,06 °C, à laquelle une phase est transformée pour devenir un gaz très dense à une pression élevée et l'énergie pour éjecter le projectile (223) est ainsi produite. Ledit dispositif d'amorçage du projectile (201) peut être utilisé pour désamorcer un explosif. Un projectile (223) peut comprendre un gel imprégné de fines particules d'un agent abrasif tel que le verre, la silicone, la bentonite, polymère et céramique et est capable de couper du cuir et du métal.
PCT/AU2003/000875 2002-07-08 2003-07-07 Dispositif pour desamorcer des explosifs WO2004005838A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003243821A AU2003243821A1 (en) 2002-07-08 2003-07-07 Device for disarming explosive

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU2002950035 2002-07-08
AU2002950035A AU2002950035A0 (en) 2002-07-08 2002-07-08 Device for disarming explosive

Publications (1)

Publication Number Publication Date
WO2004005838A1 true WO2004005838A1 (fr) 2004-01-15

Family

ID=27809139

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU2003/000875 WO2004005838A1 (fr) 2002-07-08 2003-07-07 Dispositif pour desamorcer des explosifs

Country Status (2)

Country Link
AU (1) AU2002950035A0 (fr)
WO (1) WO2004005838A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1722188A1 (fr) * 2005-05-13 2006-11-15 Lockheed Martin Corporation Appareil de jet de fluide pulsé et munition comprenant un tel appareil
CN105698602A (zh) * 2016-03-05 2016-06-22 中国人民解放军国防科学技术大学 一种液气相变爆炸物销毁器及使用方法
CN106403706A (zh) * 2016-10-25 2017-02-15 中国工程物理研究院总体工程研究所 一种瞬发高压气体炮
CN107063009A (zh) * 2016-08-26 2017-08-18 中国铁建大桥工程局集团有限公司 一种地铁双线大跨度隧道微振爆破工艺
CN107907020A (zh) * 2017-11-23 2018-04-13 中铁广州建设有限公司 一种干冰致裂岩石的装药方法及其装药组件
CN112857163A (zh) * 2020-12-31 2021-05-28 中南大学 一种二氧化碳破岩装置及方法
CN113274746A (zh) * 2021-06-17 2021-08-20 长沙领英智造科技有限公司 一种影视爆炸特效助推系统及实施方法
CN113338926A (zh) * 2021-04-30 2021-09-03 长沙领英智造科技有限公司 一种爆破裂岩系统及爆破裂岩方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2224102A (en) * 1988-10-20 1990-04-25 Israel State Deactivating gun
GB2291958A (en) * 1992-04-15 1996-02-07 Royal Ordnance Plc Disrupter weapon
US5785038A (en) * 1993-09-10 1998-07-28 Earth Resources Corporation Cannon for disarming an explosive device
WO1999064808A1 (fr) * 1998-06-10 1999-12-16 Proparms Ltd. Desactivateur a liquide dote d'un recul reduit
WO2003037570A1 (fr) * 2001-11-02 2003-05-08 Poly Systems Pty Ltd Pistolet a clouer utilisant un gaz propulseur liquefie
WO2003038367A1 (fr) * 2001-11-02 2003-05-08 Poly Systems Pty Limited Dispositif de mise a feu de projectiles faisant appel a un gaz propulseur liquefie

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2224102A (en) * 1988-10-20 1990-04-25 Israel State Deactivating gun
GB2291958A (en) * 1992-04-15 1996-02-07 Royal Ordnance Plc Disrupter weapon
US5785038A (en) * 1993-09-10 1998-07-28 Earth Resources Corporation Cannon for disarming an explosive device
WO1999064808A1 (fr) * 1998-06-10 1999-12-16 Proparms Ltd. Desactivateur a liquide dote d'un recul reduit
WO2003037570A1 (fr) * 2001-11-02 2003-05-08 Poly Systems Pty Ltd Pistolet a clouer utilisant un gaz propulseur liquefie
WO2003038367A1 (fr) * 2001-11-02 2003-05-08 Poly Systems Pty Limited Dispositif de mise a feu de projectiles faisant appel a un gaz propulseur liquefie

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1722188A1 (fr) * 2005-05-13 2006-11-15 Lockheed Martin Corporation Appareil de jet de fluide pulsé et munition comprenant un tel appareil
US7387072B2 (en) 2005-05-13 2008-06-17 Lockheed Martin Corporation Pulsed fluid jet apparatus and munition system incorporating same
CN105698602A (zh) * 2016-03-05 2016-06-22 中国人民解放军国防科学技术大学 一种液气相变爆炸物销毁器及使用方法
CN107063009A (zh) * 2016-08-26 2017-08-18 中国铁建大桥工程局集团有限公司 一种地铁双线大跨度隧道微振爆破工艺
CN106403706A (zh) * 2016-10-25 2017-02-15 中国工程物理研究院总体工程研究所 一种瞬发高压气体炮
CN107907020A (zh) * 2017-11-23 2018-04-13 中铁广州建设有限公司 一种干冰致裂岩石的装药方法及其装药组件
CN112857163A (zh) * 2020-12-31 2021-05-28 中南大学 一种二氧化碳破岩装置及方法
CN113338926A (zh) * 2021-04-30 2021-09-03 长沙领英智造科技有限公司 一种爆破裂岩系统及爆破裂岩方法
CN113338926B (zh) * 2021-04-30 2024-02-09 长沙领英智造科技有限公司 一种爆破裂岩系统及爆破裂岩方法
CN113274746A (zh) * 2021-06-17 2021-08-20 长沙领英智造科技有限公司 一种影视爆炸特效助推系统及实施方法
CN113274746B (zh) * 2021-06-17 2022-04-05 长沙领英智造科技有限公司 一种影视爆炸特效助推系统及实施方法

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