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US20110048221A1 - Protective module for an object against specifically hollow charge missiles - Google Patents

Protective module for an object against specifically hollow charge missiles Download PDF

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Publication number
US20110048221A1
US20110048221A1 US12/868,588 US86858810A US2011048221A1 US 20110048221 A1 US20110048221 A1 US 20110048221A1 US 86858810 A US86858810 A US 86858810A US 2011048221 A1 US2011048221 A1 US 2011048221A1
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United States
Prior art keywords
protective
protective module
plates
module according
condenser
Prior art date
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Abandoned
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US12/868,588
Inventor
Markus Jung
Jürgen Hofmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rheinmetall Waffe Munition GmbH
Original Assignee
Rheinmetall Waffe Munition GmbH
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Assigned to RHEINMETALL WAFFE MUNITION GMBH reassignment RHEINMETALL WAFFE MUNITION GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: HOFMANN, JURGEN, JUNG, MARKUS
Publication of US20110048221A1 publication Critical patent/US20110048221A1/en
Abandoned legal-status Critical Current

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41WEAPONS
    • F41HARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H5/00Armour; Armour plates
    • F41H5/02Plate construction
    • F41H5/04Plate construction composed of more than one layer
    • F41H5/0414Layered armour containing ceramic material
    • F41H5/0421Ceramic layers in combination with metal layers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41WEAPONS
    • F41HARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H5/00Armour; Armour plates
    • F41H5/007Reactive armour; Dynamic armour

Definitions

  • the invention concerns the design of electrical armor for a stationary or movable object as protection specifically against hollow charge missiles.
  • Hollow charges present a threat even for (wheeled) vehicles.
  • a hollow charge is a specific arrangement of violent explosive (frequently on nitropenta, or hexogen/octogen-basis) around a cone-shaped or semi-spherical metal insert, and is particularly suitable for penetration of armor-plating. It is employed accordingly as reinforcement-breaking ammunition.
  • the cone-shaped metal insert is surrounded by an explosive with an opening facing in the forward direction. If the charge is ignited, a spike is formed of cold-worked metal, starting from the tip of the metal core, which penetrates the target at very high velocity, followed by a slower ram or tappet, which forms the principal mass.
  • Simple known hollow charge protection devices are so-called SLATs, which are attached to the vehicles.
  • a preferably detachable SLAT protective design is disclosed in DE 10 2007 036 393 A1.
  • a protective screen of the same kind is also described in DE 10 2007 002 577A1.
  • Another protective device is published in DE 103 10 952 A1.
  • Additional solutions are, for example, active reaction reinforcements, which are hurdled against different projectiles, such as is known, for example, from DE 10 2005 056 178 A1.
  • the line-up of a multitude of reactive protective elements in water vehicles is the subject of DE 10 2007 022 767 A1.
  • DE 10 2007 060 611 A1 deals with a fluid armor-plate arrangement.
  • a protective module is covered in DE 10 2005 021 348 B3 for the protection of objects with electricity against threats, specifically due to hollow charges.
  • U.S. Patent Application Publication No. US 2009/0199701 A1 corresponds to DE 10 2005 021 348 B3, and U.S. Patent Application Publication No. US 2009/0199701 A1 is incorporated herein in its entirety for all that it discloses.
  • the condenser discharges the electric circuit, as a result of which, due to the high electricity, a strong magnetic field is formed around the hollow line beam (i.e., the beam of the hollow line, which is the width of the hollow line), which in turn has an effect on the charged particles of the hollow charge beam in the form of strong forces. This results in the enlargement of the diameter of the hollow charge beam, which consequently reduces the penetration performance of the hollow charge beam itself.
  • the principle can be modified, for example, by means of a series connection of several plates, or by providing dielectric fluids between the plates, or by alternating dielectric fluids and ceramics between the plates.
  • the short-circuit between the two plates is created as quickly as possible with high electricity (i.e., a high voltage that leads to higher current and a faster short-circuit).
  • the process is often slowed down based on the inductivity of the rise in electricity or current in the access line, so that the rise in electricity (current) may then require up to several 10 is to achieve.
  • Another deficit is that the short-circuit will not start to flow until the two plates are connected via the hollow charge beam (i.e., the width of the hollow charge). This may lead to a situation where the anterior front of the hollow charge beam is not influenced by the short-circuit because the initial speed of the electricity (current flow) is not quick enough and the hollow charge missile continues to penetrate its target object.
  • a first embodiment of the invention which pertains to a protective module ( 1 ) for the protection of objects, in particular against hollow charge missiles, wherein the protective module ( 1 ) comprises several sequentially arranged and/or super-posed plates (P 1 to P n ) for the formation of distributed and/or of several capacities (C 1 to C n .
  • P 1 to P n sequentially arranged and/or super-posed plates
  • C 1 to C n capacities
  • the first embodiment is modified so that dielectric ceramics ( 3 ) are tied in between the plates (P 1 to P n ).
  • the first embodiment or the second embodiment are further modified so that the protective module ( 1 ) is sub-divided into several protective part modules ( 10 ).
  • the third embodiment is further modified so that that the protective part modules ( 10 ) may be designed symmetrically as well as asymmetrically.
  • the third embodiment or the fourth embodiment is further modified so that the number of plates (P 1 to P n may vary per protective part module ( 10 ).
  • the third embodiment, the fourth embodiment, and the fifth embodiment are further modified so that the protective part modules ( 10 ) can be connected in such a fashion with each other that with detected attack, the condensers (C 1-n ) in the firing range can be provided with additional tension (U) in order to thus increase the current amplitude.
  • the eighth embodiment is further modified so that permissible tension is provided by a central condenser.
  • the first embodiment, the second embodiment, the third embodiment, the fourth embodiment, the fifth embodiment, the sixth embodiment and the seventh embodiment are further modified so that for distribution of capacity, one condenser (C 1 ) is arranged in the protective module ( 1 ) and the other condenser (C 2 ) is arranged centrally.
  • the third embodiment, the fourth embodiment, the fifth embodiment, the sixth embodiment and the seventh embodiment are further modified so that for distribution of capacity, one condenser (C 1-n ) is respectively provided in the protective modules ( 10 ) and a central condenser.
  • the invention is based on the idea of dividing the capacity of an otherwise utilized central condenser over a multitude of plate condensers so that the capacity of the condenser is realized via a multitude of plate condensers, which are formed between the sequentially arranged protective plates.
  • Each individual condenser is charged with a tension U o (i.e., each individual condenser is charged to a voltage U 0 ).
  • the loading instrument preferably is located within the vehicles, or the object that is to be protected.
  • the protective module which is formed of many protective plates, is charged by means of a co-axial high voltage (HV) cable. Voltage division can take place in the loading device as well as in the protective module.
  • the electricity increase and the amplitude are now determined only by the parameters of the hollow charging beam, the first capacity or capacitance C and the loading tension U o . Because both the inductivity as well as the capacitance of the shorted circuit are lower than it is in the case with traditional applications, this small circuit presents a clearly lower increase in velocity (i.e., the affect of the short-circuit influences the hollow charge missile more quickly).
  • the plate distance can also be selected smaller than traditional plates because several are arranged in sequence. This also contributes to an earlier influence on the tip of the hollow charge beam. Another not insignificant benefit is provided in that the central condenser is eliminated and no longer requires its own place in the vehicle.
  • the protective module may be constructed from several protective module components. This has the benefit that the less important areas that need to be protected can present fewer plates, so that the entire protective module becomes lighter in weight. Another benefit that can be achieved with part-modules is the ability of exchanging defective part-modules.
  • the protective partial modules can be connected with each other in such a fashion that, with a detected attack, the condenser in the firing region can be supplied with additional voltage in order to, thus, increase the rise in velocity.
  • the issue may remain unanswered as to whether the capacities (i.e., capacitances of the condensers) release their tension (i.e., stored voltage energy) outside the detected impact point of the hollow charge projectile or whether a central source assumes the task.
  • FIG. 1 depicts a basic electrical design of an electrical armor according to the state of the art.
  • FIG. 2 depicts the basic electrical design of a protective module according to the invention.
  • FIG. 3 depicts, in frontal view, a variation of the design of the protective module in accordance with the present invention.
  • FIG. 1 shows the basic design of an electrical protective module 1 , according to the state of the art, which consists of several sequentially arranged plates P 1 , P 2 until P n , for the formation of several capacitances C 1 until C n .
  • Electrical ceramics 3 are preferably inserted between the plates P 1-n .
  • the hollow charge beam or width H hits the first plate P 1 , it shorts the first condenser C 1 (i.e., P 1 and P 2 ). With each further penetration of the capacities or capacitances C 2-n by the hollow charge beam H, the plates are successively shorted, the hollow charge beam H is weakened, and the principal mass is rendered ineffective.
  • FIG. 2 depicts the division of the protective module 1 , presented here as a sketched object 20 , in different or sub-divided protective areas 10 or protective part modules.
  • Object 20 may be a stationary object, or it may be a moveable object such as a vehicle.
  • the part modules 10 ′ may be constructed in their design in the most important areas to be protected, thicker at an object 20 than in other areas.
  • the protective part modules 10 can be connected in such a fashion with each other that, with detected attack, the condensers C 1-n in the firing range 11 can be provided with additional tension U (i.e., more voltage) in order to thus increase the current amplitude at these condensers between the plates.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
  • Thermistors And Varistors (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Elimination Of Static Electricity (AREA)

Abstract

A protective module (1) for the protection of an object, in particular against hollow charge projectiles, includes several sequentially or super-posed attached plates (P1 to Pn) for the formation of several capacitances (C1 to Cn), with preference given to dielectric ceramics (3) tied in between plates (P1 to Pn), whereby the protective module (1) can be formed by several protective part modules (10). Thus, the protective part modules (10) are arranged adjacent to each other so as to form the protective module (1).

Description

  • This application claims priority from German Patent Application No. 10 2009 038 630.0, filed Aug. 26, 2009, the entire disclosure of which is incorporated herein by reference.
  • FIELD OF THE INVENTION
  • The invention concerns the design of electrical armor for a stationary or movable object as protection specifically against hollow charge missiles.
  • BACKGROUND OF THE INVENTION
  • Hollow charges present a threat even for (wheeled) vehicles. A hollow charge is a specific arrangement of violent explosive (frequently on nitropenta, or hexogen/octogen-basis) around a cone-shaped or semi-spherical metal insert, and is particularly suitable for penetration of armor-plating. It is employed accordingly as reinforcement-breaking ammunition. The cone-shaped metal insert is surrounded by an explosive with an opening facing in the forward direction. If the charge is ignited, a spike is formed of cold-worked metal, starting from the tip of the metal core, which penetrates the target at very high velocity, followed by a slower ram or tappet, which forms the principal mass.
  • Simple known hollow charge protection devices are so-called SLATs, which are attached to the vehicles. A preferably detachable SLAT protective design is disclosed in DE 10 2007 036 393 A1. A protective screen of the same kind is also described in DE 10 2007 002 577A1. Another protective device is published in DE 103 10 952 A1.
  • Additional solutions are, for example, active reaction reinforcements, which are hurdled against different projectiles, such as is known, for example, from DE 10 2005 056 178 A1. The line-up of a multitude of reactive protective elements in water vehicles is the subject of DE 10 2007 022 767 A1. DE 10 2007 060 611 A1 deals with a fluid armor-plate arrangement.
  • A protective module is covered in DE 10 2005 021 348 B3 for the protection of objects with electricity against threats, specifically due to hollow charges. U.S. Patent Application Publication No. US 2009/0199701 A1 corresponds to DE 10 2005 021 348 B3, and U.S. Patent Application Publication No. US 2009/0199701 A1 is incorporated herein in its entirety for all that it discloses.
  • In the meantime, other so-called electrical armor plates are also employed as a protective system. Due to this type of electrical reinforcement, the range of effectiveness of a hollow charge beam can clearly be reduced. This kind of concept consists of an arrangement of plates, an access line, and a loading device (See, e.g., FIG. 1). If the hollow charge beam H reaches the reinforcement, it shorts out the condenser by contacting the upper and lower (anterior/posterior) plate. The condenser discharges the electric circuit, as a result of which, due to the high electricity, a strong magnetic field is formed around the hollow line beam (i.e., the beam of the hollow line, which is the width of the hollow line), which in turn has an effect on the charged particles of the hollow charge beam in the form of strong forces. This results in the enlargement of the diameter of the hollow charge beam, which consequently reduces the penetration performance of the hollow charge beam itself. Depending upon the type of design, the principle can be modified, for example, by means of a series connection of several plates, or by providing dielectric fluids between the plates, or by alternating dielectric fluids and ceramics between the plates.
  • It is important for the principle effectiveness of the electrical armor that the short-circuit between the two plates is created as quickly as possible with high electricity (i.e., a high voltage that leads to higher current and a faster short-circuit). The process is often slowed down based on the inductivity of the rise in electricity or current in the access line, so that the rise in electricity (current) may then require up to several 10 is to achieve. Another deficit is that the short-circuit will not start to flow until the two plates are connected via the hollow charge beam (i.e., the width of the hollow charge). This may lead to a situation where the anterior front of the hollow charge beam is not influenced by the short-circuit because the initial speed of the electricity (current flow) is not quick enough and the hollow charge missile continues to penetrate its target object.
  • It is the object of the invention to produce an earlier reaction on the hollow charge beam (i.e., an earlier reaction on the width of the hollow charge) by shorter/lower current velocity increases, thereby producing a more effective short-circuit).
  • SUMMARY OF THE INVENTION
  • The above object is solved by the characteristics of a first embodiment of the invention, which pertains to a protective module (1) for the protection of objects, in particular against hollow charge missiles, wherein the protective module (1) comprises several sequentially arranged and/or super-posed plates (P1 to Pn) for the formation of distributed and/or of several capacities (C1 to Cn. Other beneficial embodiments of the present invention are mentioned briefly as follows.
  • In accordance with a second embodiment of the present invention, the first embodiment is modified so that dielectric ceramics (3) are tied in between the plates (P1 to Pn). In accordance with a third embodiment of the present invention, the first embodiment or the second embodiment are further modified so that the protective module (1) is sub-divided into several protective part modules (10). In accordance with a fourth embodiment of the present invention, the third embodiment is further modified so that that the protective part modules (10) may be designed symmetrically as well as asymmetrically. In accordance with a fifth embodiment of the present invention, the third embodiment or the fourth embodiment is further modified so that the number of plates (P1 to Pn may vary per protective part module (10).
  • In accordance with a sixth embodiment of the present invention, the third embodiment, the fourth embodiment, and the fifth embodiment are further modified so that the protective part modules (10) can be connected in such a fashion with each other that with detected attack, the condensers (C1-n) in the firing range can be provided with additional tension (U) in order to thus increase the current amplitude. In accordance with a seventh embodiment of the present invention, the eighth embodiment is further modified so that permissible tension is provided by a central condenser. In accordance with an eighth embodiment of the present invention, the first embodiment, the second embodiment, the third embodiment, the fourth embodiment, the fifth embodiment, the sixth embodiment and the seventh embodiment are further modified so that for distribution of capacity, one condenser (C1) is arranged in the protective module (1) and the other condenser (C2) is arranged centrally. In accordance with a ninth embodiment of the present invention, the third embodiment, the fourth embodiment, the fifth embodiment, the sixth embodiment and the seventh embodiment, are further modified so that for distribution of capacity, one condenser (C1-n) is respectively provided in the protective modules (10) and a central condenser.
  • The invention is based on the idea of dividing the capacity of an otherwise utilized central condenser over a multitude of plate condensers so that the capacity of the condenser is realized via a multitude of plate condensers, which are formed between the sequentially arranged protective plates. Each individual condenser is charged with a tension Uo (i.e., each individual condenser is charged to a voltage U0). If the hollow charge beam now influences the protective plate (i.e., if the width of the hollow charge affects the protective plate), a quick electric rise is possible because of the short “access line” when the beam electrically connects the plates of the first condenser with each other and, thus, only the first condenser is short-circuited, as a result of which the hollow charge beam represents almost the only inductivity of the shorted circuit. A reaction can, thus, quickly take place in the front of the beam due to short circuit of the affected first condenser. Due to each further penetration of the protective element or protective module, successive additional condensers are shorted. The loading instrument preferably is located within the vehicles, or the object that is to be protected. The protective module, which is formed of many protective plates, is charged by means of a co-axial high voltage (HV) cable. Voltage division can take place in the loading device as well as in the protective module.
  • In refining the inventive concept, it has shown itself as beneficial for increasing the capacity if dielectric ceramics are tied-in between the individual plates of the condensers.
  • The electricity increase and the amplitude are now determined only by the parameters of the hollow charging beam, the first capacity or capacitance C and the loading tension Uo. Because both the inductivity as well as the capacitance of the shorted circuit are lower than it is in the case with traditional applications, this small circuit presents a clearly lower increase in velocity (i.e., the affect of the short-circuit influences the hollow charge missile more quickly). The plate distance can also be selected smaller than traditional plates because several are arranged in sequence. This also contributes to an earlier influence on the tip of the hollow charge beam. Another not insignificant benefit is provided in that the central condenser is eliminated and no longer requires its own place in the vehicle.
  • The protective module may be constructed from several protective module components. This has the benefit that the less important areas that need to be protected can present fewer plates, so that the entire protective module becomes lighter in weight. Another benefit that can be achieved with part-modules is the ability of exchanging defective part-modules.
  • In another conceivable variation of the invention, the protective partial modules can be connected with each other in such a fashion that, with a detected attack, the condenser in the firing region can be supplied with additional voltage in order to, thus, increase the rise in velocity. The issue may remain unanswered as to whether the capacities (i.e., capacitances of the condensers) release their tension (i.e., stored voltage energy) outside the detected impact point of the hollow charge projectile or whether a central source assumes the task.
  • The invention will be explained in more detail by means of an exemplary embodiment and with drawings.
  • FIG. 1 depicts a basic electrical design of an electrical armor according to the state of the art.
  • FIG. 2 depicts the basic electrical design of a protective module according to the invention.
  • FIG. 3 depicts, in frontal view, a variation of the design of the protective module in accordance with the present invention.
  • DETAILED DESCRIPTION OF THE INVENTION
  • FIG. 1 shows the basic design of an electrical protective module 1, according to the state of the art, which consists of several sequentially arranged plates P1, P2 until Pn, for the formation of several capacitances C1 until Cn. Electrical ceramics 3 are preferably inserted between the plates P1-n.
  • Each of the capacities or capacitances C1 until Cn is loaded up to a loading tension Uo.
  • If the hollow charge beam or width H hits the first plate P1, it shorts the first condenser C1 (i.e., P1 and P2). With each further penetration of the capacities or capacitances C2-n by the hollow charge beam H, the plates are successively shorted, the hollow charge beam H is weakened, and the principal mass is rendered ineffective.
  • FIG. 2 depicts the division of the protective module 1, presented here as a sketched object 20, in different or sub-divided protective areas 10 or protective part modules. Object 20 may be a stationary object, or it may be a moveable object such as a vehicle. The opportunity exists of designing the same symmetrically, which permits simple exchangeability in case of defect or, however, to also allow asymmetry in the design. The part modules 10′ may be constructed in their design in the most important areas to be protected, thicker at an object 20 than in other areas.
  • In another preferred embodiment of the invention, the protective part modules 10 can be connected in such a fashion with each other that, with detected attack, the condensers C1-n in the firing range 11 can be provided with additional tension U (i.e., more voltage) in order to thus increase the current amplitude at these condensers between the plates.
  • Also conceivable is another distribution of the capacitance to C1(−n), is wherein the protective module 1 is, or the protective modules 10 are (respectively), tied in and with a central condenser. The individual condenser, or individual condensers C 1(−n), in this arrangement determines, or determine, the current increase in velocity at the start and is/are thereafter supplied by the central condenser with the main current. It goes without saying that combinations are possible of this variation, and also of the previously described variation of the present invention.

Claims (14)

1. A protective module for the protection of objects, against hollow charge missiles, the protective module comprising:
a plurality of sequentially arranged, or superposed, or sequentially arranged and superposed plates that form a distributed first capacitance, or that form several second capacitances, or that form the distributed first capacitance and several second capacitances on an object.
2. A protective module according to claim 1, wherein dielectric ceramics are disposed in between individual plates of the plurality of plates.
3. A protective module according to claim 1, wherein the protective module is sub-divided into a plurality of protective part modules.
4. A protective module according to claim 3, wherein the plurality of protective part modules include first plates that are designed symmetrically with one another and second plates that are designed asymmetrically with one another.
5. A protective module according to claim 3 4, wherein each protective part module comprises a number of plates that varies per protective part module.
6. A protective module according to claim 3, wherein the protective part modules are connected with each other so that with a detected attack, condensers in a firing range are provided with additional tension in order to increase current amplitude between adjacent plates.
7. A protective module according to claim 6, wherein the additional tension is provided by a central condenser of the object.
8. A protective module according to claim 1, wherein for a distribution of capacitance, a first condenser is arranged in the protective module and a second condenser is arranged centrally within the object.
9. A protective module according to claim 3, wherein for distribution of capacitance, a first condenser is respectively provided in the plurality of protective modules and a central condenser of the object is operably connected with the first condenser.
10. A protective module according to claim 2, wherein the protective module is sub-divided into a plurality of protective part modules.
11. A protective module according to claim 10, wherein the plurality of protective part modules include first plates that are designed symmetrically with one another and second plates that are designed asymmetrically with one another.
12. A protective module according to claim 8, wherein the additional tension is provided by a central condenser.
13. A stationary or moveable object provided with electrical armor that is disposed to protect the object against a hollow charge missile, wherein the electrical armor comprises a protective module, wherein the protective module comprises:
a plurality of sequentially arranged, or superposed, or sequentially arranged and superposed, plates that form a distributed first capacitance, or that form several second capacitances, or that form the distributed first capacitance and several second capacitances on the object.
14. A stationary or moveable object according to claim 13, wherein the object is a vehicle.
US12/868,588 2009-08-26 2010-08-25 Protective module for an object against specifically hollow charge missiles Abandoned US20110048221A1 (en)

Applications Claiming Priority (2)

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DE102009038630.0 2009-08-26
DE102009038630A DE102009038630A1 (en) 2009-08-26 2009-08-26 Protection module for an object against in particular shaped charge projectiles

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US (1) US20110048221A1 (en)
EP (1) EP2290317B1 (en)
CA (1) CA2713698C (en)
DE (1) DE102009038630A1 (en)
DK (1) DK2290317T3 (en)
ES (1) ES2785704T3 (en)
HU (1) HUE048647T2 (en)
PL (1) PL2290317T3 (en)

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US20090199701A1 (en) * 2005-05-04 2009-08-13 Matthias Wickert Protective Module Using Electric Current to Protect Objects Against Threats, Especially From Shaped Charges
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US8443708B2 (en) 2006-01-17 2013-05-21 Amsafe Bridport Limited Textile armour
US8752468B2 (en) 2006-01-17 2014-06-17 Amsafe Bridport Limited Textile Armour
US8881638B2 (en) 2006-01-17 2014-11-11 Amsafe Bridport Limited Textile armour
US9310169B2 (en) 2006-01-17 2016-04-12 Amsafe Bridport Limited Textile armour
US9897418B2 (en) 2014-06-02 2018-02-20 Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek Tno Electric reactive armour

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EP2290317A2 (en) 2011-03-02
HUE048647T2 (en) 2020-07-28
CA2713698A1 (en) 2011-02-26
ES2785704T3 (en) 2020-10-07
DK2290317T3 (en) 2020-04-27
EP2290317B1 (en) 2020-02-19
EP2290317A3 (en) 2013-03-06
PL2290317T3 (en) 2020-08-10
DE102009038630A1 (en) 2011-04-28
CA2713698C (en) 2020-04-21

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