EP0843149A1 - Verbundpanzerplatte und Verfahren zur Herstellung - Google Patents

Verbundpanzerplatte und Verfahren zur Herstellung Download PDF

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Publication number
EP0843149A1
EP0843149A1 EP96308166A EP96308166A EP0843149A1 EP 0843149 A1 EP0843149 A1 EP 0843149A1 EP 96308166 A EP96308166 A EP 96308166A EP 96308166 A EP96308166 A EP 96308166A EP 0843149 A1 EP0843149 A1 EP 0843149A1
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EP
European Patent Office
Prior art keywords
pellets
panel
mould
composite armor
armor
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
Application number
EP96308166A
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English (en)
French (fr)
Other versions
EP0843149B1 (de
Inventor
Michael Cohen
Avinoam Israeli
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.)
Mofet Etzion
Original Assignee
Mofet Etzion
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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8225148&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0843149(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Mofet Etzion filed Critical Mofet Etzion
Priority to ES96308166T priority Critical patent/ES2124067T3/es
Priority to AT96308166T priority patent/ATE170285T1/de
Priority to EP96308166A priority patent/EP0843149B1/de
Priority to DK96308166T priority patent/DK0843149T3/da
Priority to DE69600574T priority patent/DE69600574T2/de
Publication of EP0843149A1 publication Critical patent/EP0843149A1/de
Application granted granted Critical
Publication of EP0843149B1 publication Critical patent/EP0843149B1/de
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H5/00—Armour; Armour plates
    • F41H5/02—Plate construction
    • F41H5/04—Plate construction composed of more than one layer
    • F41H5/0414—Layered armour containing ceramic material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H5/00—Armour; Armour plates
    • F41H5/02—Plate construction
    • F41H5/04—Plate construction composed of more than one layer
    • F41H5/0492—Layered armour containing hard elements, e.g. plates, spheres, rods, separated from each other, the elements being connected to a further flexible layer or being embedded in a plastics or an elastomer matrix

Definitions

  • the present invention relates to a composite armor panel. More particularly, the invention provides an armored panel providing lightweight ballistic protection which may be worn by the user, and for protecting light mobile equipment and vehicles against high-speed fire-arm projectiles or fragments. The invention also includes methods for manufacturing the panel.
  • the first consideration is weight.
  • Protective armor for heavy but mobile military equipment such as tanks and large ships, is known.
  • Such armor usually comprises a thick layer of alloy steel, which is intended to provide protection against heavy and explosive projectiles. Due to its weight, such armor is quite unsuitable for light vehicles such as automobiles, jeeps, light boats, or aircraft, whose performance is compromised by steel panels having a thickness of more than a few millimeters.
  • Armor for light vehicles is expected to prevent penetration of bullets of any weight, even when impacting at a speed in the range of 700 to 1000 meters per second.
  • the maximum armor weight which is acceptable for use on light vehicles varies with the type of vehicle, but generally falls in the range of 40 to 70 kg/m 2 .
  • a second consideration is cost. Overly complex armor arrangements, particularly those depending entirely on synthetic fibers, can be responsible for a notable proportion of the total vehicle cost, and can make its manufacture non-profitable.
  • a third consideration in armor design is compactness.
  • a thick armor panel including air spaces between its various layers, increases the target profile and the wind resistance of the vehicle.
  • Ceramic materials are nonmetallic, inorganic solids having a crystalline or glassy structure, and have many useful physical properties, including resistance to heat, abrasion and compression, high rigidity, low weight in comparison with steel, and outstanding chemical stabiity. Such properties have long drawn the attention of armor designers, and solid ceramic plates, in thicknesses ranging from 3 mm. for personal protection to 50 mm. for heavy military vehicles, are commercially available for such use.
  • a known form of armor plating using ceramics is produced in Israel by Kibbutz Beit Alpha. It comprises cutting 5 mm. steel plates to the sizes required, heat-treating the steel and adding a ceramic coating.
  • One disadvantage of this type of panel is that on completion the panels are almost impossible to modify. In use, the ceramic coating performs well against the first bullet, but tends to shatter, and thus fails to protect against further projectiles.
  • a common problem with prior art ceramic armor concerns damage inflicted on the armor structure by a first projectile, whether stopped or penetrating. Such damage weakens the armor panel, and so allows penetration of a following projectile, impacting within a few centimeters of the first.
  • the present invention is therefore intended to obviate the disadvantages of prior art ceramic armor, and to provide an armor panel which is effective against small-caliber fire-arm projectiles, yet is of light weight, i.e, having a weight of less than 45 kg/m 2 , which is equivalent to about 9 lbs/ft 2 , and low bulk.
  • a further object of the invention is to provide an armor panel which is particularly effective in arresting a plurality of projectiles impacting upon the same general area of the panel.
  • a composite armor material for absorbing and dissipating kinetic energy from high velocity, armor-piercing projectiles comprising a panel consisting essentially of a single internal layer of high density ceramic pellets having an Al 2 0 3 content of at least 85% and a specific gravity of at least 2.5, said pellets being directly bound and retained in panel form by a solidified material which is elastic at a temperature below 250°C, the majority of said pellets each having a major axis in the range of about 3-12 mm, and being bound by said solidified material in a plurality of superposed rows, wherein a majority of each of said pellets is in contact with at least 4 adjacent pellets, and the total weight of said panel does not exceed 45 kg/m 2 .
  • Said solidified material can be any suitable material, such as molten metal which is elastic at a temperature below 250°C, such as aluminum, epoxy, a thermoplastic polymer, or a thermoset plastic.
  • an armored panel wherein the solidified material contains at least 80% aluminum.
  • the elasticity of the material used in the present invention serves, to a certain extent, to increase the probability that a projectile will simultaneously impact several pellets, thereby increasing the efficiency of the stopping power of the panel of the present invention.
  • a multi-layered armor panel comprising an outer, impact-receiving panel of composite armor material as hereinbefore defined, for deforming and shattering an impacting high velocity, armor-piercing projectile; and an inner layer adjacent to said outer panel, comprising second layer comprising a panel of tough woven textile material for causing an asymmetric deformation of the remaining fragments of said projectile and for absorbing the remaining kenetic energy from said fragments, said inner layer having a thickness of at least 50% of that of said outer, impact-receiving panel, wherein said panel is adapted to stop three bullets fired seqentially at a triangular area of said panel, the sides of said triangle being 5 cm each.
  • composite armor plate comprising a mass of spherical ceramic balls distributed in an aluminum alloy matrix is known in the prior art.
  • prior art composite armor plate suffers from one or more serious disadvantages, making it difficult to manufacture and less than entirely suitable for the purpose of defeating metal projectiles.
  • McDougal, et al. U.S. Patent 3,705,558 discloses a lightweight armor plate comprising a layer of ceramic balls.
  • the ceramic balls are in contact with each other and leave small gaps for entry of molten metal.
  • the ceramic balls are encased in a stainless steel wire screen; and in another embodiment, the composite armor is manufactured by adhering nickel-coated alumina spheres to an aluminum alloy plate by means of a polysulfide adhesive.
  • Composite armor plate as described in the McDougal, et al. patent is difficult to manufacture because the ceramic spheres may be damaged by thermal shock arising from molten metal contact. The ceramic spheres are also sometimes displaced during casting of molten metal into interstices between the spheres.
  • Huet U.S. Patents 4,534,266 and 4,945,814 propose a network of interlinked metal shells to encase ceramic inserts during casting of molten metal. After the metal solidifies, the metal shells are incorporated into the composite armor. It has been determined, however, that such a network of interlinked metal shells substantially increases the overall weight of the armored panel and decreases the stopping power thereof.
  • McDougal suggests and teaches an array of ceramic balls disposed in contacting pyrimidal relationship, which arrangement also substantially increases the overall weight of the armored panel and decreases the stopping power thereof, due to a billiard-like effect upon impact.
  • the novel armor of the present invention traps incoming projectiles between several sphere-like, very hard ceramic pellets which are held in a single layer in rigid mutual relationship.
  • the moderate size of the pellets ensures that the damage caused by a first projectile is localized and does not spread to adjoining areas.
  • An incoming projectile may contact the pellet array in one of three ways:
  • the present invention provides a method for producing a composite armor material as defined hereinabove, comprising providing a mould having a bottom, two major surfaces, two minor surfaces and an open top, wherein the distance between said two major surfaces is from about 1.2 to about 1.8 times the major axis of said pellets; inserting said pellets into said mould to form a plurality of superposed rows of pellets extending substantially along the entire distance between said minor side surfaces, and from said bottom substantially to said open top; incrementally heating said mould and the pellets contained therein to a temperature of at least 100°C above the flow point of the material to be poured in the mould; pouring molten material into said mould to fill the same; allowing said molten material to solidify; and removing said composite armor material from said mould.
  • the present invention also provides a method for producing a composite armor material, comprising providing a mould having a bottom, two major surfaces, two minor surfaces and an open top, wherein the distance between said two major surfaces is from about 1.2 to 1.8 times the major axis of said pellets; inserting said pellets into said mould to form a plurality of superposed rows of pellets extending substantially along the entire distance between said minor side surfaces, and from said bottom substantially to said open top; pouring liquid epoxy resin into said mould to fill the same; allowing said epoxy to solidify; and removing said composite armor material from said mould.
  • said pellets do not necessarily have to be completely covered on both sides by said solidified material, and they can touch or even bulge from the outer surfaces of the formed panel.
  • a panel 14 is formed from a solidified material 16, the panel having an internal layer of high-density ceramic pellets 18.
  • the outer faces of the panel are formed from the solidified material 16, and pellets 18 are embedded therein.
  • the nature of the solidified material 16 is selected in accordance with the weight, performance and cost considerations applicable to the intended use of the armor.
  • Armor for land and sea vehicles is suitably made using a metal casting alloy containing at least 80% aluminum.
  • a suitable alloy is Aluminum Association No. 535.0, which combines a high tensile strength of 35,000 kg/in 2 , with excellent ductility, having 9% elongation.
  • Further suitable alloys are of the type containing 5% silicon B443.0. These alloys are easy to cast in thin sections; their poor machinability is of little concern in the application of the present invention.
  • An epoxy or other plastic or polymeric material, advantageously fiber-reinforced, is also suitable.
  • Pellets 18 have an alumina (Al 2 O 3 ) content of at least 93%, and have a hardness of 9 on the Mohs scale. Regarding size, the majority of pellets have a major axis in the range of from about 3-12 mm, the preferred range being from 6-10 mm.
  • Fig. 1 There are shown in Fig. 1, for illustrative purposes, a mixture of round pellets 18a, flat-cylindrical pellets 18b, and spherical pellets 18c. Considerations of symmetry, as well as tests carried out by the present inventor, indicate that the most effective pellet shape is spherical 18c. Ceramic pellets are used as grinding media in size-reduction mills of various types, typically in tumbling mills, and are thus commercially available at a reasonable cost.
  • pellets 18 are bound by the solidified molten material 16 in a plurality of superimposed rows 20. A majority of pellets 18 are each in contact with at least 4 adjacent pellets.
  • the panel 14 acts to stop an incoming projectile 12 in one of three modes: centre contact, flank contact, and valley contact, as described above.
  • a pellet 18d having a regular, geometric, prismatic form, with one convex curved surface segment 22.
  • Fig. 3 shows a pellet 18e having a circular cross-section 24, taken at line AA.
  • the pellet is of satellite form, and is commercially available.
  • Fig. 4 illustrates a multi-layered, armor panel 26, having a configuration which is particularly suitable for armored clothing.
  • similar identification numerals are used for identifying similar parts.
  • An outer, impacting panel 28 of composite armor material is similar to panel 14 described above with reference to Fig. 1.
  • Panel 28 acts to deform and shatter an impacting high velocity projectile 12.
  • Light-weight armor for personal protection is made using a tough, yet hard, thermoplastic resin, for example, polycarbonate or acrylonite-butadiene-styrene.
  • Inner panel layer 30 is adjacent to outer panel 28, and is advantageously attached thereto.
  • Inner panel layer 30 has a thickness of at least 50% of that of outer impacting panel 28.
  • Inner panel 30 is made of a tough woven material, such as multiple layers of Kevlar®, or a material known by its trade name of Famaston.
  • inner layer panel 30 comprises multiple layers of a polyamide netting.
  • inner panel 30 causes asymmetric deformation of the remaining fragments 32 of the projectile 12, and absorbs remaining kinetic energy from these fragments by deflecting and compressing them in the area 34 seen in Fig. 1. It is to be noted that area 34 is much larger than the projectile cross-section, thus reducing the pressure felt on the inner side 36 of inner panel 30. This factor is important in personally-worn armor.
  • a casting mould 38 used for producing a composite armor material 10 as described above with reference to Fig. 1.
  • the following elevated-temperature method of manufacture is used:
  • Step A
  • a mould 38 is provided, having a bottom 40, two major surfaces 42, two minor surfaces 44 and an open top 46, wherein the distance between these two major surfaces 42 is 1.2 to 1.8 times the major axis of the pellets 18. For example, 8 mm pellets are used and the distance between major surfaces is 10 mm.
  • Step B
  • Pellets 18 are inserted into mould 38 to form a plurality of superposed rows 20 of pellets 18, extending substantially along the entire distance between the minor side surfaces 44, and from the bottom 40 substantially to the open top 46.
  • Step C
  • Mould 38 and the pellets 18 contained therein are incrementally heated, first to a temperature of about 100°C, and then further heated to a temperature of at least 100°C above the flow point of the material to be poured in the mould.
  • a temperature of about 100°C For example, aluminium has a flow point of about 540°C, and will require heating the mould, together with ceramic pellets contained therein, to above 640°C.
  • Step D
  • Molten material 16 is poured into mould 38 to fill the same.
  • a typical pour temperature range for aluminium is 830-900°C.
  • Polycarbonate is poured at between 250-350°C.
  • the surfaces of mould 38 are provided with a plurality of air holes 48, to facilitate the escape of air while molten material 16 is poured therein.
  • the pellets 18 are slightly rearranged in accordance with the hydrostatic and hydrodynamic forces exerted upon them by the molten material.
  • Step E
  • Molten material 16 is allowed to solidify.
  • Step F
  • Composite armor material 10 is removed from mould 38.
  • the following embodiment of a method of manufacture includes the use of an epoxy resin to form a themoset matrix.
  • an epoxy resin to form a themoset matrix.
  • epoxies can be cast at room temperature and chemically hardened, or their hardening can be accelerated by the application of heat.
  • Epoxy armor is suitable for use on aircraft. Yield strength and Young's modulus are both improved by adding fiber reinforcement.
  • Step A
  • Mould 38 is provided, having a bottom 40, two major surfaces 42, two minor surfaces 44 and an open top 46, wherein the distance between the two major surfaces 42 is from about 1.2 to 1.8 times the major axis of the pellets 18.
  • Step B
  • Pellets 18 are inserted into mould 38 to form a plurality of superposed rows 20 of pellets 18 extending substantially along the entire distance between the minor side surfaces 44, and from the bottom 40 substantially to the open top 46.
  • Step C
  • Liquid epoxy resin is poured into mould 38 to fill the same.
  • Step D
  • the epoxy is allowed to solidify.
  • Step E
  • the composite armor material is removed from mould 38.
  • Table 1 is a reproduction of a test report relating to the aluminium matrix multi-layer panel described above with reference to Fig. 4. Three armor-piercing bullets were fired at close range from an AK-47 assault rifle at a multi-layered panel having a total weight of 34.3 kg/m 2 , a weight low enough for limited use as personally worn armor. The results reported prove the effectiveness of the panel manufactured according to the present invention.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Laminated Bodies (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
EP96308166A 1996-11-12 1996-11-12 Verbundpanzerplatte und Verfahren zur Herstellung Revoked EP0843149B1 (de)

Priority Applications (5)

Application Number Priority Date Filing Date Title
ES96308166T ES2124067T3 (es) 1996-11-12 1996-11-12 Panel de blindaje compuesto y su metodo de fabricacion.
AT96308166T ATE170285T1 (de) 1996-11-12 1996-11-12 Verbundpanzerplatte und verfahren zur herstellung
EP96308166A EP0843149B1 (de) 1996-11-12 1996-11-12 Verbundpanzerplatte und Verfahren zur Herstellung
DK96308166T DK0843149T3 (da) 1996-11-12 1996-11-12 Sammensat panserplade og fremgangsmåde til fremstilling af en sådan
DE69600574T DE69600574T2 (de) 1996-11-12 1996-11-12 Verbundpanzerplatte und Verfahren zur Herstellung

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP96308166A EP0843149B1 (de) 1996-11-12 1996-11-12 Verbundpanzerplatte und Verfahren zur Herstellung

Publications (2)

Publication Number Publication Date
EP0843149A1 true EP0843149A1 (de) 1998-05-20
EP0843149B1 EP0843149B1 (de) 1998-08-26

Family

ID=8225148

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96308166A Revoked EP0843149B1 (de) 1996-11-12 1996-11-12 Verbundpanzerplatte und Verfahren zur Herstellung

Country Status (5)

Country Link
EP (1) EP0843149B1 (de)
AT (1) ATE170285T1 (de)
DE (1) DE69600574T2 (de)
DK (1) DK0843149T3 (de)
ES (1) ES2124067T3 (de)

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999050612A1 (en) * 1998-03-30 1999-10-07 Mofet Etzion Composite armor panel
WO1999053260A1 (en) * 1998-04-14 1999-10-21 Michael Cohen Composite armor panel
EP0959321A1 (de) 1998-05-19 1999-11-24 Michael Cohen Verbundpanzerplatte
EP1166031A1 (de) 1999-02-09 2002-01-02 Rafael - Armament Development Authority Ltd. Ballistische panzerplatte
WO2002029351A1 (en) 2000-10-05 2002-04-11 Michael Cohen Composite armor panel
US6624106B2 (en) * 2000-05-02 2003-09-23 Michael Cohen Alumina ceramic products
EP0942255B1 (de) * 1998-03-10 2006-08-16 Mofet Etzion Verbundpanzerplatte
US7117780B2 (en) 2003-08-26 2006-10-10 Michael Cohen Composite armor plate
EP1737653A2 (de) * 2004-04-23 2007-01-03 The United States of America as Represented by The Secretary of The Navy Panzerung einschliesslich spannungsratenhärtungselastomer
US7383762B2 (en) 2005-04-03 2008-06-10 Michael Cohen Ceramic pellets and composite armor panel containing the same
US7543523B2 (en) 2001-10-01 2009-06-09 Lockheed Martin Corporation Antiballistic armor
EP2071272A2 (de) 2007-12-11 2009-06-17 Michael Cohen Verbundstoffpanzerplatte und Verwendungsverfahren dafür
US7603939B2 (en) 2003-10-02 2009-10-20 Michael Cohen Ceramic bodies for armor panel
EP2146178A2 (de) * 2008-07-17 2010-01-20 Plasan Sasa Ltd Panzerplatte
EP2426454A2 (de) 2010-09-07 2012-03-07 Michael Cohen Hochdichte Keramikkörper und solche Keramikkörper enthaltende Verbundstoffpanzerung
RU2462682C2 (ru) * 2010-09-07 2012-09-27 Майкл КОЭН Высокоплотные керамические блоки и включающая их композитная броня
US8281700B2 (en) 2004-09-08 2012-10-09 Michael Cohen Composite armor plate and ceramic bodies for use therein
US8833229B2 (en) 2005-03-30 2014-09-16 The Secretary Of State For Defence Ceramic armour element for use in armour
RU2539269C1 (ru) * 2013-06-13 2015-01-20 Закрытое акционерное общество "Научно-производственное объединение специальных материалов" Объемно-комбинированная броня
RU2542813C1 (ru) * 2013-11-19 2015-02-27 Открытое акционерное общество "Обнинское научно-производственное предприятие "Технология" Объемно-комбинированная броня

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005013660A1 (de) 2005-03-24 2006-09-28 Krauss-Maffei Wegmann Gmbh & Co. Kg Verbundpanzerplatte zum Schutz von Fahrzeugen oder Gebäuden vor panzerbrechenden Geschossen mit hoher kinetischer Energie
ES2361376T3 (es) 2007-02-14 2011-06-16 KRAUSS-MAFFEI WEGMANN GMBH & CO. KG Procedimiento para la fabricación de una placa de blindaje compuesta.
EP2023072A1 (de) 2007-08-09 2009-02-11 ETEC Gesellschaft für technische Keramik mbH Pellet-Satz für Panzerschutz

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1081464A (en) * 1963-08-06 1967-08-31 Feldmuehle Ag Armour plate
FR1566448A (de) * 1967-03-01 1969-05-09
US3705558A (en) * 1963-04-24 1972-12-12 Gen Motors Corp Armor
GB1352418A (en) * 1971-05-11 1974-05-08 Feldmuehle Anlagen Prod Armour plate
US4061815A (en) * 1967-10-26 1977-12-06 The Upjohn Company Novel compositions
FR2559254A1 (fr) * 1984-02-02 1985-08-09 Picard Blindage resistant au percage et son procede de fabrication
DE3228264A1 (de) * 1981-08-13 1985-12-05 Harry 7311 Hochdorf Apprich Beschusssicheres mehrschichtmaterial
DE3507216A1 (de) * 1985-03-01 1986-09-04 Rheinmetall GmbH, 4000 Düsseldorf Verbundplatte
GB2272272A (en) * 1992-11-10 1994-05-11 T & N Technology Ltd Armour
US5361678A (en) * 1989-09-21 1994-11-08 Aluminum Company Of America Coated ceramic bodies in composite armor
FR2711782A1 (fr) * 1991-07-30 1995-05-05 Creusot Loire Elément de blindage comportant un réseau de particules en matériau dur et procédé de réalisation de cet élément de blindage.

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3705558A (en) * 1963-04-24 1972-12-12 Gen Motors Corp Armor
GB1081464A (en) * 1963-08-06 1967-08-31 Feldmuehle Ag Armour plate
FR1566448A (de) * 1967-03-01 1969-05-09
US4061815A (en) * 1967-10-26 1977-12-06 The Upjohn Company Novel compositions
GB1352418A (en) * 1971-05-11 1974-05-08 Feldmuehle Anlagen Prod Armour plate
DE3228264A1 (de) * 1981-08-13 1985-12-05 Harry 7311 Hochdorf Apprich Beschusssicheres mehrschichtmaterial
FR2559254A1 (fr) * 1984-02-02 1985-08-09 Picard Blindage resistant au percage et son procede de fabrication
DE3507216A1 (de) * 1985-03-01 1986-09-04 Rheinmetall GmbH, 4000 Düsseldorf Verbundplatte
US5361678A (en) * 1989-09-21 1994-11-08 Aluminum Company Of America Coated ceramic bodies in composite armor
FR2711782A1 (fr) * 1991-07-30 1995-05-05 Creusot Loire Elément de blindage comportant un réseau de particules en matériau dur et procédé de réalisation de cet élément de blindage.
GB2272272A (en) * 1992-11-10 1994-05-11 T & N Technology Ltd Armour

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0942255B1 (de) * 1998-03-10 2006-08-16 Mofet Etzion Verbundpanzerplatte
WO1999050612A1 (en) * 1998-03-30 1999-10-07 Mofet Etzion Composite armor panel
WO1999053260A1 (en) * 1998-04-14 1999-10-21 Michael Cohen Composite armor panel
EP0959321A1 (de) 1998-05-19 1999-11-24 Michael Cohen Verbundpanzerplatte
WO1999060327A1 (en) * 1998-05-19 1999-11-25 Michael Cohen Composite armor plate
EP1166031A1 (de) 1999-02-09 2002-01-02 Rafael - Armament Development Authority Ltd. Ballistische panzerplatte
US6624106B2 (en) * 2000-05-02 2003-09-23 Michael Cohen Alumina ceramic products
WO2002029351A1 (en) 2000-10-05 2002-04-11 Michael Cohen Composite armor panel
US7543523B2 (en) 2001-10-01 2009-06-09 Lockheed Martin Corporation Antiballistic armor
US7117780B2 (en) 2003-08-26 2006-10-10 Michael Cohen Composite armor plate
US7603939B2 (en) 2003-10-02 2009-10-20 Michael Cohen Ceramic bodies for armor panel
EP1737653A2 (de) * 2004-04-23 2007-01-03 The United States of America as Represented by The Secretary of The Navy Panzerung einschliesslich spannungsratenhärtungselastomer
EP1737653A4 (de) * 2004-04-23 2009-04-01 Us Navy Panzerung einschliesslich spannungsratenhärtungselastomer
US8281700B2 (en) 2004-09-08 2012-10-09 Michael Cohen Composite armor plate and ceramic bodies for use therein
US8833229B2 (en) 2005-03-30 2014-09-16 The Secretary Of State For Defence Ceramic armour element for use in armour
US7383762B2 (en) 2005-04-03 2008-06-10 Michael Cohen Ceramic pellets and composite armor panel containing the same
EP2071272A2 (de) 2007-12-11 2009-06-17 Michael Cohen Verbundstoffpanzerplatte und Verwendungsverfahren dafür
EP2146178A2 (de) * 2008-07-17 2010-01-20 Plasan Sasa Ltd Panzerplatte
EP2146178A3 (de) * 2008-07-17 2012-10-17 Plasan Sasa Ltd Panzerplatte
EP2426454A2 (de) 2010-09-07 2012-03-07 Michael Cohen Hochdichte Keramikkörper und solche Keramikkörper enthaltende Verbundstoffpanzerung
RU2462682C2 (ru) * 2010-09-07 2012-09-27 Майкл КОЭН Высокоплотные керамические блоки и включающая их композитная броня
US8438963B2 (en) 2010-09-07 2013-05-14 Michael Cohen High density ceramic bodies and composite armor comprising the same
RU2539269C1 (ru) * 2013-06-13 2015-01-20 Закрытое акционерное общество "Научно-производственное объединение специальных материалов" Объемно-комбинированная броня
RU2542813C1 (ru) * 2013-11-19 2015-02-27 Открытое акционерное общество "Обнинское научно-производственное предприятие "Технология" Объемно-комбинированная броня

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EP0843149B1 (de) 1998-08-26
ATE170285T1 (de) 1998-09-15
DE69600574T2 (de) 1999-06-17
DE69600574D1 (de) 1998-10-01
ES2124067T3 (es) 1999-01-16
DK0843149T3 (da) 1999-05-25

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