WO2007049060A1 - Ameliorations apportees a des dispositifs de tir d’un projectile - Google Patents

Ameliorations apportees a des dispositifs de tir d’un projectile Download PDF

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Publication number
WO2007049060A1
WO2007049060A1 PCT/GB2006/004025 GB2006004025W WO2007049060A1 WO 2007049060 A1 WO2007049060 A1 WO 2007049060A1 GB 2006004025 W GB2006004025 W GB 2006004025W WO 2007049060 A1 WO2007049060 A1 WO 2007049060A1
Authority
WO
WIPO (PCT)
Prior art keywords
cartridge
chamber
charge
cartridge according
projectile
Prior art date
Application number
PCT/GB2006/004025
Other languages
English (en)
Inventor
Robert Jackson Gilbert
Original Assignee
Richmond Eei Limited
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 Richmond Eei Limited filed Critical Richmond Eei Limited
Priority to US12/090,509 priority Critical patent/US20090031912A1/en
Priority to EP06794931A priority patent/EP1949018A1/fr
Publication of WO2007049060A1 publication Critical patent/WO2007049060A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B5/00—Cartridge ammunition, e.g. separately-loaded propellant charges
    • F42B5/02—Cartridges, i.e. cases with charge and missile
    • F42B5/05—Cartridges, i.e. cases with charge and missile for recoilless guns
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A1/00—Missile propulsion characterised by the use of explosive or combustible propellant charges
    • F41A1/08—Recoilless guns, i.e. guns having propulsion means producing no recoil
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B5/00—Cartridge ammunition, e.g. separately-loaded propellant charges
    • F42B5/38—Separately-loaded propellant charges, e.g. cartridge bags

Definitions

  • This invention relates to a cartridge for a device for firing a projectile and to a device for firing a projectile. Although described in relation to a device for de-arming/disrupting an explosive device, the invention is not limited in application to de-arming and disrupting devices.
  • a conventional de-arming device (also referred to as a disrupting device or a de-armer disrupter) operates by firing a solid, liquid or gel projectile at an explosive device so as to disrupt the fuse assembly of the latter, ideally without detonating the explosive device.
  • a de-arming device comprises a barrel, the breech of which contains a conventional gun cartridge which, when detonated, propels the projectile, also initially contained in the barrel, towards the target.
  • the present applicant's European Patent No. EP0549659B discloses a de-arming device in which recoil is counteracted by means of water initially contained in an annular chamber around the breech of the barrel.
  • the gun cartridge used to fire the projectile also propels the water rearwardly from the device.
  • the inertia of the water enables the gun cartridge to generate sufficiently high gas pressures to fire the projectile at a sufficiently high velocity without the need to lengthen the device's barrel.
  • the water and the additional components needed for the firing device to contain the water increase the weight of the device, and the need to fill the chamber with water prior to firing the device (and to close the chamber once full) also increases the time needed to prime the device for firing.
  • a cartridge for a device for firing a projectile comprising a housing having first and second chambers, respectively containing first and second charges of propellant material, and each having a respective outlet, wherein, in use, the outlet of the first chamber allows the expulsion from the cartridge of gas produced by the detonation of the first propellant charge, so as to fire the projectile, whilst the outlet of the second chamber allows the expulsion from the cartridge of gas produced by the detonation of the second propellant charge, which gas exits the device rearwardly so as to counteract recoil.
  • a device which fires a projectile using that cartridge can have a single breech, and can therefore be more compact and lightweight than a device which uses two separate cartridges.
  • the device is also more compact and lightweight than types of anti-recoil de-armer that do require a jacket of water. Since the propellant charge for firing the projectile is in a separate chamber from that for counteracting recoil, the force with which the projectile is fired is not affected by the. gases by which are ejected so as to counteract recoil.
  • the amount of the first propellant charge can be varied independently of the second propellant charge during the stages of design and development of the cartridge. This facilitates the creation of a cartridge which provides a desired force of firing and adequate anti-recoil characteristics. Indeed, it has been found that a cartridge in accordance with the invention can completely neutralise recoil.
  • the chambers of the cartridge are situated one in front of the other in the housing, the first chamber being in the front portion of the cartridge, the second in the rear.
  • each chamber is situated adjacent to the part of the device (the barrel containing the projectile or a rearward facing outlet port (as the case may be) to which gases from the chamber need to be expelled.
  • the outlet of the first chamber made to advantage comprise a port in the front of the cartridge, the outlet of the second chamber comprising a port in the rear of the cartridge.
  • the ports are substantially circular, and are coaxial.
  • the chambers are elongate and are also coaxial with the ports and hence with each other. This facilitates the balancing of the device so that the force generated by the rearwardly ejected gases is coaxial with the recoil force caused by the firing of the projectile.
  • the second charge of propellant is more powerful than the first charge.
  • reaction forces on the device caused by the exiting projectile are higher than the reaction caused by ejecting gas alone. This is accommodated in the cartridge by increasing the amount and/or velocity of the gases ejected through the outlet of the second chamber compared with those ejected by the detonation of the first charge.
  • the second chamber may therefore to advantage be of a larger volume than the first chamber.
  • the second chamber has a larger cross-sectional area than the first chamber.
  • the second chamber preferably has a larger diameter than the first chamber.
  • the increased volume of the second chamber does not require an increased length of cartridge.
  • the propellant material is explosive.
  • the two chambers have a common igniter assembly.
  • the igniter assembly may comprise an ignition chamber having ignition ports to each of the first and second chambers and containing an initiator charge of explosive material, hot gases produced by the detonation of which pass through the ignition ports to ignite the first and second charges of propellant material.
  • the ignition chamber is preferably interposed between said first and second chambers.
  • the cartridge housing comprises a one piece casing which is hollow to define the first and second chambers, and includes a wall or bulkhead separating those two chambers.
  • the bulkhead isolates the two propellant charges from each so that the firing force exerted on the projectile by the detonation of the first charge is not affected by the venting of the gases produced by the detonation of the second charge.
  • the bulkhead may to advantage also contain the igniter assembly.
  • the second chamber has a portion of reduced cross section adjacent to the outlet of that chamber.
  • a device for firing a projectile comprising a barrel for housing the projectile and a cartridge in accordance with the first aspect of the invention, wherein the barrel has a rear outlet through which said gas from the detonation of the second propulsive charge of such a cartridge is expelled so as to counteract recoil.
  • the barrel has a breech module, the rear portion of which is of a larger cross sectional or area than the front portion.
  • the rear portion of the breech can accommodate the part of the cartridge which in turn contains the second, larger propellant charge.
  • the rear outlet is connected to a constriction, preferably a venturi, for accelerating the flow of gas from the rear of the device.
  • the invention also lies in a device in accordance with the second aspect of the invention when loaded with a cartridge in accordance with the first aspect of the invention.
  • Figure 1 is a sectional side view of a first embodiment cartridge in accordance with the invention.
  • Figure 2 is a corresponding view of a device, also in accordance with the invention, for firing a projectile, the device being shown when loaded with the cartridge shown in Figure 1;
  • Figures 3 and 4 are isometric views, respectfully from the front and rear, showing the exterior of the device
  • Figure 5 is a sectional side view of a second embodiment of cartridge in accordance with the invention.
  • Figure 6 is an end view of the cartridge of Figure 5 and
  • Figure 7 is an isometric view of the cartridge of Figure 5.
  • the cartridge shown in Figure 1 comprises a one piece cylindrical housing 1 machined from solid stainless steel, and having a front portion 2 and a rear portion 4 of a larger diameter than the portion 2.
  • the portions 2 and 4 meet at an annular step 6.
  • the casing includes internal bulkhead 8 which extends across the entire width of the casing to separate the interior of the latter into a first chamber 10 in the front of the cartridge and a second, larger diameter chamber 12 in the rear portion 4.
  • ignition chamber 14 is provided in the centre of the bulkhead 8, in order to house an igniter assembly.
  • the igniter assembly includes an electrical fusehead shown diagrammatically at 16, comprising an electrical bridge wire connected to a positive electrical contact 18 and to the casing of the cartridge (which is in turn connected to an earth contact as described below) and coated with a suitable explosive.
  • the fusehead wire is spaced from the walls of the chamber 14, which chamber is also packed with a charge of black powder that acts as an initiator charge.
  • One side of the chamber 14 is defined by the part 20 of the bulkhead 8 that separates the chamber 10 from the chamber 14, which part includes a pair of ignition ports in the form of axial passages, 22 and 24.
  • the other side of the chamber 14 is defined by a cylindrical externally screw threaded plug 26 which is screwed into a correspondingly screw threaded cylindrical recess 28 in the side of the bulkhead that bounds the compartment 12.
  • the plug 26 also has a pair of axial passages 30 and 32 which act as ignition ports. As can be seen from Figure 1, the passages 22, 24, 30 and 32 enable the chamber 14 to communicate with the chambers 10 and 12.
  • the chamber 10 contains a first propellant charge 34, whilst a second propellant charge 36 is contained within the chamber 12.
  • the propellant charge 36 is larger than the charge 34, in this case the charges being respectively constituted by 5 and 8 grams of gun- powder.
  • Each of the charges is held in a substantially cylindrical shape, and the end of each charge opposite the bulkhead is abutted by a respective one of two circular card discs 38 and 40 which separate the charge from a respective one of two felt closure wads 42 and 44.
  • the opposite side of each wad is abutted by a respective one of two tufnell discs 46 and 48 which is held in position by means of a respective one of two roll crimps 50 and 52 on the end of the cartridge.
  • the forward end of the cartridge constitutes a circular opening which is closed by the disc 46 and which acts as an outlet for the chamber 10.
  • the outlet for the chamber 12 is provided by the opening at the rear end of the cartridge, which opening is closed by the disc 48.
  • the wall of the cartridge casing includes an annular thickened portion 54 adjacent to the disc 48. This portion acts as a choke for restricting the flow of gases from the chamber 12 and thus increasing the pressure exerted by those gases.
  • the device for firing a projectile comprises a barrel having a forward portion 56 and a breech module 58 which, in use, accommodates the cartridge. Prior to firing, the projectile (not shown) is accommodated in the forward portion 56.
  • the device is annular, and the breech module 58 is stepped, having a forward smaller diameter portion 60 and a rear larger diameter portion 62.
  • the interior of the breech module is correspondingly stepped so that the portion 60 accommodates the portion 2 of the cartridge, whilst the portion 62 accommodates the rear pOrtion 4 of the cartridge and the shoulder 6 abuts an internal, correspondingly annular shoulder formed at the step in diameters of the breech portion. This abutment of the two shoulders limits the forward movement of the cartridge within the breech module.
  • the rear of the breech module 58 includes an internal screw thread via which a correspondingly screw threaded end portion 64 can be removably attached to the breech module 58.
  • the portion 64 is open ended, annular and includes a venturi port 66 through which gases generated by the detonation of the charge 36 are expelled from the rear of the device.
  • the end piece includes a flat 68 to enable the end piece to be rotationally keyed to a suitable tool for tightening and loosening the end piece.
  • the device is primed for firing by removing the end piece 64 and inserting a cartridge into the breech portion 58 until the shoulder 6 abuts the corresponding shoulder on the interior of the breech portion 58.
  • the end piece 64 is then screwed onto the rear of the breech module 58 and tightened using a tool (as mentioned above).
  • a projectile to be fired from the device is loaded into the device through the front of the barrel 56 until the trailing end of the projectile abuts the front of the breech portion 58.
  • the projectile is a solid, but the projectile could be a liquid or gel (in which case containment of the projectile prior to firing is achieved in the same way as with a conventional projectile of that type).
  • the breech module 58 carries a pair of terminals, one of which, the terminal 70, is in electrical contact with the contact 18.
  • the other terminal, referenced 72, is in contact with the body of the breech module, and hence is in electrical contact with the casing of the cartridge.
  • the contact 70 comprises a conductive pin 74 which extends through an insulating sleeve 16 that lines the interior of a radial passage in the breech module 58 in registry with the contact 18.
  • An electrical firing circuit (not shown) is connected to the device by connecting the positive terminal of the circuit to the terminal 70 and the negative terminal of the circuit to the terminal 72.
  • the circuit In response to a suitable firing command, the circuit passes an electrical current through the fuse head wire 16. This detonates the charge of explosive in the chamber 14, causing hot gases to pass through the passages 22, 24, 30 and 32 into the propellant charges 34 and 36, both of which are thus ignited. Since both charges 34 and 36 are ignited from a common fuse wire, the detonation of the two charges occurs substantially simultaneously. This would not necessarily be the case if two separate fuse wires were used since, in general, the resistances of fuse wires (even of the same type) tend to vary so that two such fuse wires will take different amounts of time to heat up to ignition temperatures even if they are subjected to the same voltage simultaneously.
  • the detonation of the charge 34 shatters the disc 46, ejects the wad 42 and disc 38 and propels the projectile through the front of the barrel 56.
  • the bulkhead 8 provides a reaction surface via which the reaction to the force exerted on the projectile by the explosive charge is transmitted into the device.
  • the detonation of the charge 36 causes the disc 48 to disintegrate, and ejects the wad 44 and disc 48 through the venturi 66. As this happens, the wad 44 will fleetingly block the venturi 66 which causes a further build up of pressure of gases generated by the charge 36.
  • a device such as the one described can be made to a weight of approximately one-third of the current designs (which utilise water jackets to counteract recoil), and can therefore be deployed on the upper arm of a mini ROV.
  • the device is also shorter and significantly smaller in diameter than the aforesaid known device, which also make it easier to deploy on an ROV.
  • positioning of the system on a robotic vehicle is less critical than in the case of known designs which use water jackets and which therefore require a clear field behind the device to avoid damage to cameras, cables, connectors and antennas.
  • the device according to the invention is also simple to manufacture and easy to operate and maintain.
  • the second embodiment of the cartridge in accordance with the invention has a three part housing formed from two cupped aluminium end pieces 100 and 102 attached one to either side of a central, cylindrical, stainless steel connector 104.
  • the cupped piece 102 defines a chamber 106 which contains two propellant charge portions 108 and 110 which correspond to the first propellant charge 34 of the first embodiment.
  • the charge portion 110 is of a relatively slow burning explosive propellant material, whilst the charge portion 108 is of a faster burning explosive material.
  • the two charge portions are separated by a paper disc 112.
  • the cupped end piece 100 defines a chamber 114 in which are contained a charge portion 116 of slow burning explosive propellant separated by a paper disc 118 from a charge portion 120 of fast burning explosive propellant.
  • the charge portions 120 and 116 correspond to the second propellant charge 36 of the first embodiment.
  • each of the slow burn charge portions 110 and 116 is interposed between the connector 104 and a respective one of faster burn charge portions 108 and 120.
  • Each of the aluminium end pieces 100 and 102 has a closed end, respectively referenced 122 and 124 which, on firing of the cartridge, bursts open to provide an outlet for the respective chamber.
  • the end 122 is scored with a generally star- shaped burst pattern 126.
  • a similar pattern 128 is scored into the end of the cupped piece 102.
  • the charge portion 110 is constituted by 7.5grams of SP12, whilst the charge portion 108 is constituted by 4 grams of OBP473-31 (also known long shot).
  • the charge portion 116 is constituted by 3 grams of SP13 and the charge portion 120 by 7.5grams of long shot.
  • the end of the piece 102 opposite the closed end 124 is provided with an internal screw thread at 130 via which the piece 102 is screwed onto a correspondingly externally screw threaded collar portion 132 of the connector 104.
  • a similar screw threaded connection is provided between the connector 104 and the end piece 100 as shown at 137.
  • a central radial flange 135 of the connector 104 provides a stop against which the inboard ends of the pieces 100 and 102 abut.
  • the collar 132 also has an internal screw thread 134 via which an externally screw threaded stainless steel plug 136 is attached to the connector 104 to define a bulkhead for the chamber 106.
  • An eccentric axial bore 138 connects the chamber 106 to an ignition chamber 140, which contains an electrical fuse head 142 (similar to the fuse head 16 of the first embodiment). As with the fuse head 16, one side of the fuse head wire is connected to a positive electrical contact 144, the other to earth, and an axial brass ferrule 146 lines the ignition chamber 140.
  • the side of me chamber 140 opposite to the plug 136 is provided with a short passage 148 which is concentric with the connector 104, and which leads a dished seat portion 150.
  • the seat portion leads to a small, generally cylindrical gallery 152 which accommodates a valve member 154 comprising a steel ball.
  • the gallery 150 is formed in a stainless steel, axial plug 156 which is provided with a central axial bore 158 situated between two diametrically opposed 1.2mm bores 160.
  • the plug along with the adjacent face of connector 104, provides a bulkhead for the chamber 114.
  • the plug 156 carries an external screw thread which co-operates with an internal screw thread in the portion of the connector 104 in which the plug 156 is accommodated so as to retain the plug 156 in position.
  • the operation of the igniter assembly results in hot gases from the burning black powder in the chamber 140 passing through the bore 138 to ignite the propellant charge portion 110, and thus causes subsequent ignition of the portion 108.
  • the detonation of these two portions provides the propulsive force for the projectile (for example a slug of water) to be fired from the device. Because of the mass of projectile, it has been found that less pressure is needed to impart the desired momentum to the projectile than is required to counteract the recoil of firing the projectile. Accordingly, the detonation of the charge portions 120 and 116 generates higher gas pressure than the detonation of the portions 110 and 108.
  • valve member 154 and the seat 150 act as a poppet valve.
  • the second embodiment of cartridge can be configured to provide a relatively high differential of pressure between the gases exiting its opposite ends.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Portable Nailing Machines And Staplers (AREA)

Abstract

Un boîtier (1 ; 100, 104, 102) d’une cartouche pour un dispositif de tir d’un projectile comporte des premier et deuxième compartiments distincts (10, 12 ; 106, 114), contenant chacun une charge respective (34, 36 ; 108, 110, 116, 120) de substance propulsive. Le gaz libéré par la détonation d’une des charges s’échappe du premier compartiment pour propulser le projectile, alors que le gaz libéré par la détonation de la deuxième charge s’échappe par l’arrière du dispositif en formant ainsi un mécanisme anti-recul. Une valve anti-retour peut également être utilisée pour établir une différence de pression importante entre les compartiments, la cartouche comportant alors un ensemble d’allumage commun.
PCT/GB2006/004025 2005-10-28 2006-10-27 Ameliorations apportees a des dispositifs de tir d’un projectile WO2007049060A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US12/090,509 US20090031912A1 (en) 2005-10-28 2006-10-27 Devices for firing a projectile
EP06794931A EP1949018A1 (fr) 2005-10-28 2006-10-27 Ameliorations apportees a des dispositifs de tir d'un projectile

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0522023.1 2005-10-28
GBGB0522023.1A GB0522023D0 (en) 2005-10-28 2005-10-28 Improvements in and relating to devices for firing a projectile

Publications (1)

Publication Number Publication Date
WO2007049060A1 true WO2007049060A1 (fr) 2007-05-03

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ID=35515920

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2006/004025 WO2007049060A1 (fr) 2005-10-28 2006-10-27 Ameliorations apportees a des dispositifs de tir d’un projectile

Country Status (4)

Country Link
US (1) US20090031912A1 (fr)
EP (1) EP1949018A1 (fr)
GB (1) GB0522023D0 (fr)
WO (1) WO2007049060A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2490567B (en) * 2011-03-16 2016-08-31 Elegant Design And Solutions Ltd System for the location and destruction of buried explosive devices
US20220185476A1 (en) * 2018-12-20 2022-06-16 Sting Industries Ltd. Recoil elimination

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CA2899643C (fr) 2014-12-16 2016-05-17 Proparms Ltd. Deviateur de liquide sans recul compense au gaz
US10107601B2 (en) * 2015-10-06 2018-10-23 Raytheon Company Electrically operated pulse initiators and ignition
SE540531C2 (en) 2016-12-21 2018-09-25 Saab Ab Launcher and method for launching a projectile
CN108662959A (zh) * 2017-03-27 2018-10-16 北京天元兴业科技开发有限公司 一种爆炸物分解器用弹药
CN108662960A (zh) * 2017-03-27 2018-10-16 北京天元兴业科技开发有限公司 一种爆炸物分解器
CA3062971A1 (fr) * 2017-05-17 2018-11-22 Saab Ab Culasse et procede de reduction de bruit
CN107560513B (zh) * 2017-11-01 2019-04-12 北京恒卫科技有限公司 一种无后坐力爆炸物销毁器及其爆破方法
US10794660B2 (en) 2018-02-14 2020-10-06 The United States of America as represented by the Federal Bureau of Investigation, Department of Justice Reverse velocity jet tamper disrupter enhancer with muzzle blast suppression
US10451378B2 (en) * 2018-02-14 2019-10-22 The United States of America as represented by the Federal Bureau of Investigation, Department of Justice Reverse velocity jet tamper disrupter enhancer
US10788284B1 (en) * 2019-05-09 2020-09-29 The United States Of America As Represented By The Secretary Of The Army Grounded and vehicular mounted weapons with improved recoil stability
KR102614332B1 (ko) * 2021-10-27 2023-12-15 디펜스코리아 주식회사 물포와 발사체의 동시 운용이 가능한 복합 방식의 포 장치

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FR954164A (fr) * 1946-10-09 1949-12-20 Oerlikon Buehrle Ag Frein pour armes à feu et cartouche pour permettre sa mise en action
US2984156A (en) * 1957-09-14 1961-05-16 Bofors Ab Recoilless firearm
DE6806698U (de) * 1968-11-13 1976-02-19 Diehl Fa Treibladung.
US4050351A (en) * 1976-05-04 1977-09-27 Societe Anonyme Dite: Societe Europeenne Depropulsion Assembly for launching a projectile
DE2619676A1 (de) * 1976-04-29 1977-11-17 Europ Propulsion Abschussvorrichtung fuer ein geschoss
EP0377433A1 (fr) * 1989-01-04 1990-07-11 Piepenbrock Pyrotechnik Gmbh Cartouche d'exercice pour armes de défense sans recul
EP0549659B1 (fr) 1990-09-18 1996-07-17 Richmond Electronics And Engineering International Limited Dispositif de tir d'un projectile
WO2003064955A1 (fr) * 2002-01-31 2003-08-07 Saab Ab Procede d'extension de la possibilite d'utilisation d'armement a systeme de contrepoids, et armement a systeme de contrepoids obtenu selon ce procede

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US5216194A (en) * 1991-05-15 1993-06-01 Alliant Techsystems Inc. Lightweight molded cartridge case and nozzle assembly for recoilless launch systems

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR954164A (fr) * 1946-10-09 1949-12-20 Oerlikon Buehrle Ag Frein pour armes à feu et cartouche pour permettre sa mise en action
US2984156A (en) * 1957-09-14 1961-05-16 Bofors Ab Recoilless firearm
DE6806698U (de) * 1968-11-13 1976-02-19 Diehl Fa Treibladung.
DE2619676A1 (de) * 1976-04-29 1977-11-17 Europ Propulsion Abschussvorrichtung fuer ein geschoss
US4050351A (en) * 1976-05-04 1977-09-27 Societe Anonyme Dite: Societe Europeenne Depropulsion Assembly for launching a projectile
EP0377433A1 (fr) * 1989-01-04 1990-07-11 Piepenbrock Pyrotechnik Gmbh Cartouche d'exercice pour armes de défense sans recul
EP0549659B1 (fr) 1990-09-18 1996-07-17 Richmond Electronics And Engineering International Limited Dispositif de tir d'un projectile
WO2003064955A1 (fr) * 2002-01-31 2003-08-07 Saab Ab Procede d'extension de la possibilite d'utilisation d'armement a systeme de contrepoids, et armement a systeme de contrepoids obtenu selon ce procede

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2490567B (en) * 2011-03-16 2016-08-31 Elegant Design And Solutions Ltd System for the location and destruction of buried explosive devices
US20220185476A1 (en) * 2018-12-20 2022-06-16 Sting Industries Ltd. Recoil elimination

Also Published As

Publication number Publication date
US20090031912A1 (en) 2009-02-05
GB0522023D0 (en) 2005-12-07
EP1949018A1 (fr) 2008-07-30

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