FR2726638A1 - Water cannon firing system, used for neutralising explosive devices, e.g. explosive booby traps - Google Patents
Water cannon firing system, used for neutralising explosive devices, e.g. explosive booby traps Download PDFInfo
- Publication number
- FR2726638A1 FR2726638A1 FR9413174A FR9413174A FR2726638A1 FR 2726638 A1 FR2726638 A1 FR 2726638A1 FR 9413174 A FR9413174 A FR 9413174A FR 9413174 A FR9413174 A FR 9413174A FR 2726638 A1 FR2726638 A1 FR 2726638A1
- Authority
- FR
- France
- Prior art keywords
- striker
- firing device
- firing
- cartridge
- explosive
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
- 238000010304 firing Methods 0.000 title claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 21
- 239000002360 explosive Substances 0.000 title claims abstract description 10
- 241001415801 Sulidae Species 0.000 title 1
- 230000003472 neutralizing effect Effects 0.000 title 1
- 239000003380 propellant Substances 0.000 claims abstract description 13
- 238000009527 percussion Methods 0.000 claims description 7
- 244000144992 flock Species 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 230000006378 damage Effects 0.000 claims description 4
- 230000000977 initiatory effect Effects 0.000 claims description 4
- 238000006386 neutralization reaction Methods 0.000 claims description 4
- 238000006073 displacement reaction Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 claims description 2
- 230000001960 triggered effect Effects 0.000 abstract 1
- 239000002184 metal Substances 0.000 description 3
- 239000007789 gas Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
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
- F41B9/00—Liquid ejecting guns, e.g. water pistols, devices ejecting electrically charged liquid jets, devices ejecting liquid jets by explosive pressure
- F41B9/0003—Liquid ejecting guns, e.g. water pistols, devices ejecting electrically charged liquid jets, devices ejecting liquid jets by explosive pressure characterised by the pressurisation of the liquid
- F41B9/0031—Liquid ejecting guns, e.g. water pistols, devices ejecting electrically charged liquid jets, devices ejecting liquid jets by explosive pressure characterised by the pressurisation of the liquid the liquid being pressurised at the moment of ejection
- F41B9/0043—Pressurisation by explosive pressure
- F41B9/0046—Disruptors, i.e. for neutralising explosive devices
-
- 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
- F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
- F42C15/00—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges
- F42C15/28—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges operated by flow of fluent material, e.g. shot, fluids
- F42C15/31—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges operated by flow of fluent material, e.g. shot, fluids generated by the combustion of a pyrotechnic or explosive charge within the fuze
Abstract
Description
Le secteur technique de la présente invention est celui des dispositifs de mise à feu d'une charge propulsive pour canons à eau destinés à la neutralisation et destruction d'engins explosifs, notamment d'engins explosifs improvisés ou colis piégés. The technical sector of the present invention is that of firing devices for a propellant charge for water cannons intended for the neutralization and destruction of explosive devices, in particular improvised explosive devices or trapped packages.
Dans ce domaine technique, on connaît notamment le brevet
FR 2.661.492 qui décrit une cartouche électrique pour canon à eau. Cette cartouche comporte un étui contenant une poudre propulsive et une bourre constituée d'une première couche en résine polyester et d'une deuxième couche en résine élastomère silicone souple résistant au déchirement.In this technical field, the patent is known in particular
FR 2,661,492 which describes an electric cartridge for a water cannon. This cartridge comprises a case containing a propellant powder and a flock consisting of a first layer of polyester resin and a second layer of flexible tear-resistant silicone elastomer resin.
Cette cartouche électrique, réalisée en petites quantités spécialement pour la seule application aux canons à eau, présente un prix de revient très élevé. This electric cartridge, produced in small quantities specially for the sole application to water cannons, has a very high cost price.
On connaît également des cartouches à blanc ou d'exercice pour fusil de chasse, constituées notamment d'une douille métallique ou en matière plastique munie d'une amorce à percussion et contenant une charge de poudre et une bourre en matériau synthétique par exemple. Also known are blank or practice cartridges for hunting rifles, consisting in particular of a metal or plastic casing provided with a percussion primer and containing a powder charge and a flock of synthetic material for example.
Ces cartouches à blanc, fabriquées en grande série, ont un prix de revient très faible. These blank cartridges, produced in large series, have a very low cost price.
Le but de la présente invention est de neutraliser et détruire des engins explosifs, avec une efficacité comparable à celle obtenue avec les dispositifs de mise à feu connus dotés d'une cartouche électrique spécifique, en propulsant la quantité d'eau contenue dans le tube du canon. The object of the present invention is to neutralize and destroy explosive devices, with an efficiency comparable to that obtained with known firing devices provided with a specific electric cartridge, by propelling the quantity of water contained in the tube of the cannon.
Un autre but est de minimiser le coût des nombreux tirs réalisés avec différents types de canons à eau, en proposant un dispositif de mise à feu acceptant des cartouches à blanc classiques, du type de celles destinées aux fusils de chasse. Another aim is to minimize the cost of the numerous shots fired with different types of water cannons, by proposing a firing device accepting conventional blank cartridges, of the type intended for hunting rifles.
Pour ce faire, l'invention a pour objet un dispositif de mise à feu d'une charge propulsive pour canon à eau destiné à la neutralisation et destruction d'engins explosifs, du type comprenant un tube canon partiellement rempli d'eau muni d'un convergent à l'une de ses extrémités, l'autre extrémité du tube canon étant reliée à une culasse, dispositif caractérisé en ce qu'il comporte des moyens mécaniques d'initiation de la charge propulsive logés dans la culasse, et en ce que ces moyens comprennent un percuteur, monté sur un ressort, agissant sur une amorce à percussion d'une cartouche à blanc contenant la charge propulsive et une bourre, sous l'effet d'un moyen de commande du percuteur. To do this, the invention relates to a device for firing a propellant charge for a water cannon intended for the neutralization and destruction of explosive devices, of the type comprising a cannon tube partially filled with water provided with a convergent at one of its ends, the other end of the barrel tube being connected to a breech, device characterized in that it comprises mechanical means for initiating the propellant charge housed in the breech, and in that these means comprise a striker, mounted on a spring, acting on a percussion primer of a blank cartridge containing the propellant charge and a flock, under the effect of a means of controlling the striker.
De préférence, le percuteur est actionné au moyen d'une composition pyrotechnique génératrice de gaz placé à proximité du percuteur dans un logement axial de la culasse, la pression des gaz entraînant le déplacement du percuteur et la percussion de l'amorce. Preferably, the striker is actuated by means of a gas-generating pyrotechnic composition placed near the striker in an axial housing of the breech, the pressure of the gases causing the striker to move and the primer to strike.
La composition pyrotechnique peut être constituée d'un inflammateur électrique relié à une source électrique externe. The pyrotechnic composition can consist of an electric igniter connected to an external electric source.
Selon un mode préféré de réalisation, un bouchon maintient de façon étanche l'inflammateur électrique dans le logement de la culasse. According to a preferred embodiment, a plug tightly maintains the electric igniter in the cylinder head housing.
De préférence, le tube canon comporte un élément étanche logé dans celui-ci à faible distance de la bourre de la cartouche à blanc. Preferably, the barrel tube comprises a sealed element housed therein at a short distance from the fluff of the blank cartridge.
Le tube canon peut comporter également un opercule à l'entrée du convergent, emprisonnant la quantité d'eau entre l'élément étanche et l'opercule. The barrel tube may also include a cover at the inlet of the convergent, trapping the amount of water between the sealed element and the cover.
Le percuteur peut être muni d'une masselotte. The striker can be fitted with a counterweight.
De préférence, la cartouche utilisée est du type cartouche à blanc ou d'exercice pour carabine de chasse 12 mm. Preferably, the cartridge used is of the blank or exercise cartridge type for 12 mm hunting rifle.
Ce dispositif de mise à feu très fiable présente une grande simplicité de mise en oeuvre, il est également facilement adaptable aux différents types de canons à eau actuellement utilisés. This very reliable firing device has a great simplicity of implementation, it is also easily adaptable to the different types of water cannons currently used.
Un autre avantage réside dans la diminution notable du prix de revient des nombreuses interventions de neutralisation et destruction d'engins explosifs. Another advantage lies in the significant reduction in the cost price of the numerous interventions for the neutralization and destruction of explosive devices.
D'autres caractéristiques et avantages de l'invention apparaîtront dans la description détaillée, non limitative, d'un mode de réalisation de l'invention. Other characteristics and advantages of the invention will appear in the detailed, nonlimiting description of an embodiment of the invention.
Cette description sera faite en se reportant aux dessins annexés parmi lesquels
- la figure 1 représente une vue en coupe longitudinale schématique d'un canon à eau équipé d'un dispositif de mise à feu selon l'invention,
- la figure 2 représente à l'échelle agrandie, une vue selon la figure 1 du dispositif de mise à feu seul.This description will be made with reference to the accompanying drawings, among which
FIG. 1 represents a schematic longitudinal section view of a water cannon equipped with a firing device according to the invention,
- Figure 2 shows on an enlarged scale, a view according to Figure 1 of the firing device alone.
En référence à la figure 1, on voit un canon à eau équipé d'un dispositif de mise à feu d'une charge propulsive selon l'invention. Le canon à eau comprend un tube canon 1 cylindrique partiellement rempli d'eau 2 et est muni d'un convergent 3 à l'une de ses extrémités, l'autre extrémité étant reliée par vissage ou tout moyen équivalent avec une culasse 4. Referring to Figure 1, we see a water cannon equipped with a device for firing a propellant charge according to the invention. The water cannon comprises a cylindrical barrel tube 1 partially filled with water 2 and is provided with a convergent 3 at one of its ends, the other end being connected by screwing or any equivalent means with a cylinder head 4.
L'eau contenue dans le tube canon 1 est emprisonnée de manière étanche dans un espace compris entre un élément étanche ou piston 10 et un opercule 11 placé de préférence à l'entrée du convergent 3. The water contained in the barrel tube 1 is trapped in a sealed manner in a space between a sealed element or piston 10 and a cover 11 preferably placed at the inlet of the convergent 3.
L'opercule 11 est constitué d'un disque mince en matière plastique du type polyéthylène par exemple. The cover 11 consists of a thin disc of plastic material of the polyethylene type for example.
L'élément étanche ou piston 10 en matériau léger et résistant du type polyamide par exemple, de forme cylindrique, présente deux gorges radiales recevant chacune un joint circulaire d'étanchéité 10a. The sealed element or piston 10 made of a light and resistant material of the polyamide type for example, of cylindrical shape, has two radial grooves each receiving a circular seal 10a.
La culasse 4 (figure 2) métallique également cylindrique présente un logement longitudinal axial 4a constitué avantageusement de trois alésages cylindriques de diamètres différents, pour le logement des moyens mécaniques d'initiation de la charge propulsive, qui sont
- un moyen de commande constitué d'un inflammateur électrique 8, relié à une source électrique externe (non représentée) du type batterie par exemple, l'inflammateur contenant une composition pyrotechnique génératrice de gaz,
- un percuteur 5 monté sur un ressort 6, le percuteur étant muni d'une masselotte 5a, et
- une cartouche 7, du type cartouche à blanc ou d'exercice pour carabine de chasse 12 mm, munie d'une amorce à percussion 7a et contenant la charge propulsive 7b et une bourre 7c, la cartouche 7 étant partiellement logée dans le tube canon 1.The also cylindrical metallic cylinder head 4 (FIG. 2) has an axial longitudinal housing 4a advantageously consisting of three cylindrical bores of different diameters, for housing the mechanical means for initiating the propellant charge, which are
a control means consisting of an electric igniter 8, connected to an external electrical source (not shown) of the battery type for example, the igniter containing a gas-generating pyrotechnic composition,
a striker 5 mounted on a spring 6, the striker being provided with a counterweight 5a, and
a cartridge 7, of the blank cartridge or exercise cartridge type for a 12 mm hunting rifle, provided with a percussion primer 7a and containing the propellant charge 7b and a flock 7c, the cartridge 7 being partially housed in the barrel tube 1.
L'inflammateur électrique 8 est maintenue de façon étanche dans le logement 4a de la culasse 4 par un bouchon 9 métallique, vissé dans l'extrémité externe du logement. Ce bouchon 9 cylindrique comporte un orifice pour le passage des fils électriques reliant l'inflammateur à la source électrique externe. The electric igniter 8 is held tightly in the housing 4a of the cylinder head 4 by a metal plug 9, screwed into the outer end of the housing. This cylindrical plug 9 has an orifice for the passage of the electrical wires connecting the igniter to the external electrical source.
Un guide percuteur 12 métallique, percé d'un alésage axial dans lequel se déplace l'extrémité du percuteur 5, est fixé dans le logement 4a à proximité de l'amorce à percussion 7a de la cartouche à blanc 7. A metal striker guide 12, pierced with an axial bore in which the end of the striker 5 moves, is fixed in the housing 4a near the percussion primer 7a of the blank cartridge 7.
Le fonctionnement du dispositif de mise à feu est le suivant. The operation of the firing device is as follows.
Le tube canon 1 muni du convergent 3 étant partiellement rempli d'eau 2 entre l'élément étanche ou piston 10 et l'opercule 11, et la cartouche à blanc 7 étant placée en partie dans l'extrémité du tube canon, l'opérateur visse la culasse 4, équipée des moyens mécaniques d'initiation, sur cette extrémité. The barrel tube 1 provided with the convergent 3 being partially filled with water 2 between the sealed element or piston 10 and the cover 11, and the blank cartridge 7 being placed partly in the end of the barrel tube, the operator screws the cylinder head 4, equipped with mechanical initiation means, on this end.
La composition pyrotechnique de l'inflammateur électrique 8, initié par la source électrique externe, génère des gaz dont la pression s'exerce sur la masselotte 5a pour entraîner le déplacement du percuteur 5 qui vient percuter l'amorce 7a de la cartouche à blanc 7. The pyrotechnic composition of the electric igniter 8, initiated by the external electric source, generates gases the pressure of which is exerted on the counterweight 5a to cause the displacement of the striker 5 which strikes the primer 7a of the blank cartridge 7 .
De manière classique, l'amorce à percussion 7a met à feu la charge propulsive 7b qui agit sur le piston 10 et éjecte la quantité d'eau à travers le convergent 3 pour détruire l'engin explosif considéré. Conventionally, the percussion primer 7a ignites the propellant charge 7b which acts on the piston 10 and ejects the quantity of water through the convergent 3 to destroy the explosive device considered.
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9413174A FR2726638B1 (en) | 1994-11-04 | 1994-11-04 | DEVICE FOR Firing a propellant charge for a water cannon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9413174A FR2726638B1 (en) | 1994-11-04 | 1994-11-04 | DEVICE FOR Firing a propellant charge for a water cannon |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2726638A1 true FR2726638A1 (en) | 1996-05-10 |
| FR2726638B1 FR2726638B1 (en) | 1996-12-13 |
Family
ID=9468493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR9413174A Expired - Fee Related FR2726638B1 (en) | 1994-11-04 | 1994-11-04 | DEVICE FOR Firing a propellant charge for a water cannon |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2726638B1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998015321A1 (en) * | 1996-10-10 | 1998-04-16 | Huegin Lothar | Impulse extinguisher |
| US8783185B2 (en) | 2009-06-11 | 2014-07-22 | Raytheon Company | Liquid missile projectile for being launched from a launching device |
| CN104613835A (en) * | 2015-02-13 | 2015-05-13 | 中国人民解放军76318部队 | Primer firing gear |
| US20200056858A1 (en) * | 2018-02-14 | 2020-02-20 | The United States of America as represented by the Federal Bureau of Investigation, Dept. of Justice | Reverse Velocity Jet Tamper Disrupter Enhancer |
| 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 |
| EP3839472A1 (en) * | 2019-12-19 | 2021-06-23 | Centre National d'Etudes Spatiales | Impact generator |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2026656A (en) * | 1978-07-27 | 1980-02-06 | Redon Trust | Device actuated electrically to trigger a mechanical percussion detonator |
| GB2083894A (en) * | 1980-09-18 | 1982-03-31 | Ester Gerd | Gun for neutralising explosives and the like |
| EP0178039A2 (en) * | 1984-06-15 | 1986-04-16 | Technical Research Products Limited | Disrupter for explosive devices |
| FR2578475A1 (en) * | 1985-03-05 | 1986-09-12 | Commissariat Energie Atomique | CANON FOR OBTAINING A HIGH SPEED LIQUID JET |
-
1994
- 1994-11-04 FR FR9413174A patent/FR2726638B1/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2026656A (en) * | 1978-07-27 | 1980-02-06 | Redon Trust | Device actuated electrically to trigger a mechanical percussion detonator |
| GB2083894A (en) * | 1980-09-18 | 1982-03-31 | Ester Gerd | Gun for neutralising explosives and the like |
| EP0178039A2 (en) * | 1984-06-15 | 1986-04-16 | Technical Research Products Limited | Disrupter for explosive devices |
| FR2578475A1 (en) * | 1985-03-05 | 1986-09-12 | Commissariat Energie Atomique | CANON FOR OBTAINING A HIGH SPEED LIQUID JET |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998015321A1 (en) * | 1996-10-10 | 1998-04-16 | Huegin Lothar | Impulse extinguisher |
| US8783185B2 (en) | 2009-06-11 | 2014-07-22 | Raytheon Company | Liquid missile projectile for being launched from a launching device |
| CN104613835A (en) * | 2015-02-13 | 2015-05-13 | 中国人民解放军76318部队 | Primer firing gear |
| US20200056858A1 (en) * | 2018-02-14 | 2020-02-20 | The United States of America as represented by the Federal Bureau of Investigation, Dept. of Justice | Reverse Velocity Jet Tamper Disrupter Enhancer |
| US10760872B2 (en) * | 2018-02-14 | 2020-09-01 | The United States Of America As Represented By The Federal Bureau Of Investigation Department Of Justice | Reverse velocity jet tamper disrupter enhancer |
| 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 |
| EP3839472A1 (en) * | 2019-12-19 | 2021-06-23 | Centre National d'Etudes Spatiales | Impact generator |
| FR3105418A1 (en) * | 2019-12-19 | 2021-06-25 | Centre National d'Études Spatiales | Shock generator |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2726638B1 (en) | 1996-12-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse | ||
| FC | Decision of inpi director general to approve request for restoration | ||
| RN | Application for restoration |