EP0296063A1 - Container for metal or metallised flakes used as electromagnetic decoys - Google Patents

Container for metal or metallised flakes used as electromagnetic decoys Download PDF

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Publication number
EP0296063A1
EP0296063A1 EP88401500A EP88401500A EP0296063A1 EP 0296063 A1 EP0296063 A1 EP 0296063A1 EP 88401500 A EP88401500 A EP 88401500A EP 88401500 A EP88401500 A EP 88401500A EP 0296063 A1 EP0296063 A1 EP 0296063A1
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EP
European Patent Office
Prior art keywords
flanges
container according
spacers
dispersing container
flakes
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
EP88401500A
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German (de)
French (fr)
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EP0296063B1 (en
Inventor
André Robert Gino Santalucia
Gilbert Demarest
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.)
Etienne LaCroix Tous Artifices SA
Original Assignee
Etienne LaCroix Tous Artifices SA
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Application filed by Etienne LaCroix Tous Artifices SA filed Critical Etienne LaCroix Tous Artifices SA
Priority to AT88401500T priority Critical patent/ATE71219T1/en
Publication of EP0296063A1 publication Critical patent/EP0296063A1/en
Application granted granted Critical
Publication of EP0296063B1 publication Critical patent/EP0296063B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B12/00—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material
    • F42B12/02—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect
    • F42B12/36—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information
    • F42B12/56—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information for dispensing discrete solid bodies
    • F42B12/70—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information for dispensing discrete solid bodies for dispensing radar chaff or infrared material

Definitions

  • the present invention relates to electromagnetic decoys.
  • the present invention relates more precisely to a container-disperser of metallic or metallized flakes forming a screen reflecting electromagnetic waves and constituting decoys for the deception of weapon systems equipped with a guide with active electromagnetic detector.
  • glitter should be understood in a broad sense; it covers the needles, ribbons and / or metallic or metallized particles, in particular metallized glass fibers, of chosen length, often called “chaffs” known to those skilled in the art and generally used for the seduction and diversion of weapon guidance systems.
  • the conventional container 10 illustrated in the appended figures comprises a base 20 and two removable shells 30, 40 which in combination define a closed cylindrical housing capable of receiving a cylindrical block 50 of glitter.
  • Block 50 is schematically illustrated in broken lines in FIG. 1a.
  • the base 20 is formed of a disc.
  • Each shell 30, 40 comprises a semi-cylindrical wall 32, 42 coaxial with the disc 20 and a semi-circular fabric 34, 44 secured to the wall 32, 42 and parallel to the base 20.
  • the container 10 is generally placed in the socket of a cartridge.
  • the shells 30, 40 are separated from the base 20, to release the block 50 of glitter, when the container is ejected from the sleeve.
  • the object of the present invention is to eliminate this drawback.
  • the present invention provides a container for dispersing metallic or metallized flakes forming electromagnetic decoys, which comprises two generally parallel flanges connected by spacers adapted to form a trap with regard to the flakes, in order to temporarily retain at least part of those -this when the container is ejected from a sleeve, and control a staggered dispersion of the flakes.
  • the container comprises a body composed of two generally parallel flanges rigidly connected by spacers and at least one removable shell, the spacers and the shell (s) forming in combination a housing continuous between the two flanges.
  • the container comprises a body composed of two generally parallel flanges, rigidly connected by spacer rods placed recessed inside the volume circumscribed by the flanges.
  • the container 100 illustrated in these figures comprises a body 120 and two removable shells 160, 180.
  • the body 120 and the shells 160, 180 form in combination a closed cylindrical housing centered on an axis 102.
  • the latter constitutes an axis of symmetry of the container.
  • the body 100 comprises two parallel flanges 130, 140 connected by two spacers 150, 155.
  • the first flange 130 is formed of a disc transverse to the axis 102 and centered on it.
  • the second flange 140 consists of a veil also transverse to the axis 102 and centered on it.
  • the veil is delimited by a disc-shaped envelope provided with two recesses 141, 144.
  • the external radius of the flange 140 equals the external radius of the flange 130.
  • the recesses 141, 144 open onto the periphery of the flange 140. They are diametrically opposite with respect to the axis 102. They have the shape of circular sectors centered on the axis 102.
  • the recess 141 is limited by the spokes 142, 143 having an angular opening.
  • the second recess 144 is limited by the spokes 145, 146 preferably having the same angular opening ⁇ .
  • the spokes 142, 143 and 145, 146, and therefore the recesses 141, 144 have a plane of symmetry, passing through the axis 102 and orthogonal to the section plane of FIG. 5.
  • the angular opening ⁇ is of the order of 90 °.
  • the recesses 141, 144 do not extend to the axis 102 so as not to divide the flange 140 into two separate elements, but to keep the flange 140 in unit form.
  • the radially innermost zone of the recesses 141, 144 is therefore delimited by generatrices 147, 148 transverse to the aforementioned plane of symmetry of the recesses.
  • the spacers 150, 155 are diametrically opposite with respect to the axis 102. They are formed by cylinder sectors centered on the axis 102. The spacers 150, 155 have a radius of curvature equal to the outside radius of the flanges 130, 140. The spacers 150, 155 have an angular opening ⁇ complementary to that of the recesses 141, 144. In other words, the spacer 155 has an angular opening ⁇ equal to the angle delimited by the spokes 143, 146. The second spacer 150 has an angular opening ⁇ equal to the angle delimited by the spokes 142, 145. The spacers 150, 155 extend between the flange 130 and the flange 140. However, they extend beyond the flange 140 in the form of ribs of shape ring centered on axis 102, referenced 151, 156.
  • the shells 160, 180 are each formed by a wall 161, 181 and a fabric 162, 182.
  • the walls 161, 181 are formed by cylinder sectors centered on the axis 102 having the same radius and the same length than the spacers 150, 155.
  • the walls 161, 181 have an angular opening complementary to the spacers 150, 155, is equal to the angle ⁇ .
  • the fabrics 162, 182 are delimited by generally flat circular sectors having the same angular opening ⁇ ; the outline of the cloths 162, 182 is complementary to the recesses 141, 144.
  • the cloths 162, 182 are transverse to the axis 102.
  • the walls 161, 181 are connected to the periphery of the cloths 162, 182. However, they extend beyond fabrics 162, 182 in the form of ribs centered on the axis 102, referenced 163, 183.
  • the ribs 151, 156, 163, 183 form a continuous ring centered on the axis 102.
  • the body 100 consists of two elements 103, 104, as illustrated in FIG. 4.
  • the element 103 is formed by the flange 130 and a column 132 secured to the internal face 135 of the flange 130 and centered on the axis 102.
  • the column 132 is provided with a central channel 134.
  • the second element 104 is formed by the flange 140, the two spacers 150, 155 and a cylindrical rod 157 centered on the axis 102 integral with the internal face of the flange 140 between the two spacers 150, 155.
  • the rod 157 is suitable for receive column 132.
  • the flange 130 is provided on its internal surface and on its periphery with an annular groove 136 centered on the axis 102.
  • This groove has an internal radius of curvature equal to the radius of internal curvature of the spacers 150, 155 and of the walls 161, 181, to receive the end of the latter opposite the flange 140 and the fabrics 162, 182.
  • this groove 136 is delimited by a surface 137, transverse to the internal surface 135 of the flange 130, which is not parallel to the axis 102, but frustoconical of revolution around the axis 102 in converging on this axis 102 in away from the surface 135.
  • the shells 160,180 are provided on the internal surface of the walls 161,181, opposite the webs 162,182 with ribs 184 complementary to the above-mentioned groove 136. Thanks to the engagement thus defined between the groove 136 and the ribs 184, the shells 160, 180 can only move axially relative to the body 120 after ejection of the container-disperser out of a cartridge case.
  • the body 100 To assemble the body 100, it suffices to place the column 132 in the rod 157.
  • the shells 160, 180 are placed on the body 100, as illustrated in FIG. 3, they form therewith a closed cylindrical housing suitable for contain a packet of glitter. These are preferably placed parallel to the axis 102.
  • the flanges 130, 140 are preferably truncated. These arrangements are already described in patent application FR-A-2 521 716 in the name of the Applicant and will therefore not be described in more detail below. Note however that preferably when there is provided flakes covering the entire length of the spacers 150, 155, these longer flakes, uncut, are placed opposite the shells 160, 180 to be ejected first, during the separation of the shells 160, 180.
  • the container shown in FIGS. 2 to 5 appended can be placed in a decoy launch cartridge case as defined in patent applications FR-A-2 521 716 and FR-A-2 436 363 or an equivalent cartridge.
  • the ribs 163, 183 provided on the shells 160, 180 provide a "wind hold" which facilitates the separation of the latter.
  • the flakes placed opposite the shells 160, 180 are dispersed first.
  • the flakes placed opposite the spacers 150, 155 are dispersed later on the trajectory of the container.
  • the flange 130 can contain a pyrotechnic charge for depositing, while the column 132 and the cane 157 can contain pyrotechnic relays and delays, as taught by documents FR-A-2 B521 716 and FR-A-2 436 363, for successively distribute a plurality of elementary charges of lures placed in respective containers stacked in a common cartridge.
  • the container 200 illustrated in this FIG. 6 comprises a body 220.
  • the body 200 comprises two flanges 230, 240 in the form of a disc, mutually parallel, of the same radius and centered on the same axis 202.
  • the flanges 230, 240 are connected by a plurality of rods 250, 251, 252 parallel to each other and to the axis 202.
  • the rods 250, 251 and 252 are equally distributed around the axis 202. They are 3 in number according to the illustration of figure 6. This number should not be limiting.
  • the rods 250, 251, 252 are set back inside the volume circumscribed by the flanges 230, 240.
  • the flanges 230, 240 are each provided with a central bore 232, 242 allowing the introduction between the flanges 230, 240 of a central cylindrical sheath aligned with the aforementioned bores and adapted to receive a pyrotechnic element, such as a delay or a relay, similar to column 132.
  • a pyrotechnic element such as a delay or a relay
  • the flakes are automatically dispersed. However, thanks to the spacers 250, 251, 252, the flakes are not all simultaneously expelled from container 200. They are gradually dispersed and thus cover an optimal surface for the disappointment of weapon guidance systems.
  • the flakes are placed transversely to the axis 202.

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  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)
  • Packages (AREA)
  • Toys (AREA)
  • Adornments (AREA)
  • Aerials With Secondary Devices (AREA)
  • Materials For Medical Uses (AREA)
  • Transmission Of Braking Force In Braking Systems (AREA)
  • Vending Machines For Individual Products (AREA)
  • Combined Means For Separation Of Solids (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

The present invention relates to a container-disperser for chaff constituted by metal strips or by metallized strips, the container-disperser comprising two end plates (130, 140) which are generally parallel and interconnected by spacers (150, 155) suitable for trapping strips of chaff so as to temporarily retain at least a portion of the chaff when the container is ejected from a case, thereby dispersing the chaff in stages.

Description

La présente invention concerne les leurres électromagné­tiques.The present invention relates to electromagnetic decoys.

La présente invention concerne plus précisément un conteneur-disperseur de paillettes métalliques ou métallisées formant écran réflecteur aux ondes électromagnétiques et constituant des leurres pour la déception de systèmes d'arme équipés d'un guidage à détecteur électromagnétique actif.The present invention relates more precisely to a container-disperser of metallic or metallized flakes forming a screen reflecting electromagnetic waves and constituting decoys for the deception of weapon systems equipped with a guide with active electromagnetic detector.

Le terme "paillettes" doit être compris dans un sens large ; il recouvre les aiguilles, rubans et/ou particules métalliques ou métallisées, en particulier les fibres de verre métallisées, de longueur choisie, souvent dénommées "chaffs" connus de l'homme de l'art et généralement utilisés pour la séduction et le détournement des systèmes de guidage d'arme.The term "glitter" should be understood in a broad sense; it covers the needles, ribbons and / or metallic or metallized particles, in particular metallized glass fibers, of chosen length, often called "chaffs" known to those skilled in the art and generally used for the seduction and diversion of weapon guidance systems.

On a illustré sur la figure 1a annexée, en vue éclatée, et sur la figure 1b annexée, en vue assemblée, la structure d'un conteneur classique de paillettes.Is illustrated in Figure 1a attached, in exploded view, and in Figure 1b attached, in assembled view, the structure of a conventional container of glitter.

Le conteneur classique 10 illustré sur les figures annexées comprend une embase 20 et deux coquilles amovibles 30, 40 qui définissent en combinaison un boîtier fermé cylindrique apte à recevoir un bloc cylindrique 50 de paillettes. Le bloc 50 est schématiquement illustré en traits interrompus sur la figure 1a. L'embase 20 est formée d'un disque. Chaque coquille 30, 40, comprend une paroi hémicylindrique 32,42 coaxiale au disque 20 et une toile hémicirculaire 34, 44 solidaire de la paroi 32, 42 et parallèle à l'embase 20.The conventional container 10 illustrated in the appended figures comprises a base 20 and two removable shells 30, 40 which in combination define a closed cylindrical housing capable of receiving a cylindrical block 50 of glitter. Block 50 is schematically illustrated in broken lines in FIG. 1a. The base 20 is formed of a disc. Each shell 30, 40 comprises a semi-cylindrical wall 32, 42 coaxial with the disc 20 and a semi-circular fabric 34, 44 secured to the wall 32, 42 and parallel to the base 20.

Le conteneur 10 est placé généralement dans la douille d'une cartouche. Les coquilles 30, 40 sont séparées de l'embase 20, pour libérer le bloc 50 de paillettes, lorsque le conteneur est éjecté hors de la douille.The container 10 is generally placed in the socket of a cartridge. The shells 30, 40 are separated from the base 20, to release the block 50 of glitter, when the container is ejected from the sleeve.

Les conteneurs du type illustré sur les figures 1a et 1b annexées ont déjà rendu de grands services. Cependant, la Demanderesse a constaté que ces conteneurs présentent fréquemment l'inconvénient de libérer des paquets de paillettes agglomérés, totalement inefficaces pour la déception des systèmes de guidage d'arme, au lieu de disperser les paillettes.The containers of the type illustrated in Figures 1a and 1b attached have already done great service. However, the Applicant has found that these containers frequently have the drawback of releasing bundles of agglomerated flakes, which are totally ineffective for the disappointment of weapon guidance systems, instead of dispersing the flakes.

La présente invention a pour but d'éliminer cet inconvé­nient.The object of the present invention is to eliminate this drawback.

A cet effet la présente invention propose un conteneur dis­perseur de paillettes métalliques ou métallisées formant leurres électromagnétiques, qui comprend deux flasques généralement parallèles reliés par des entretoises adaptées pour former piège à l'égard des paillettes, afin de retenir temporairement au moins une partie de celles-ci lorsque le conteneur est éjecté hors d'une douille, et contrô­ler une dispersion échelonnée des paillettes.To this end, the present invention provides a container for dispersing metallic or metallized flakes forming electromagnetic decoys, which comprises two generally parallel flanges connected by spacers adapted to form a trap with regard to the flakes, in order to temporarily retain at least part of those -this when the container is ejected from a sleeve, and control a staggered dispersion of the flakes.

Selon un premier mode de réalisation conforme à la présente invention, le conteneur comprend un corps composé de deux flasques généralement parallèles reliés rigidement par des entretoises et au moins une coquille amovible, les entretoises et la ou les coquille(s) formant en combinaison un boîtier continu entre les deux flasques.According to a first embodiment in accordance with the present invention, the container comprises a body composed of two generally parallel flanges rigidly connected by spacers and at least one removable shell, the spacers and the shell (s) forming in combination a housing continuous between the two flanges.

Selon un second mode de réalisation, conforme à la présente invention, le conteneur comprend un corps composé de deux flasques généralement parallèles, reliés rigidement par des tiges entretoises placées en retrait à l'intérieur du volume circonscrit par les flasques.According to a second embodiment, in accordance with the present invention, the container comprises a body composed of two generally parallel flanges, rigidly connected by spacer rods placed recessed inside the volume circumscribed by the flanges.

D'autres caractéristiques, buts et avantages de la présen­te invention apparaîtront à la lecture de la description détaillée qui va suivre, et en regard des dessins annexés, donnés à titre d'exemples non limitatifs, sur lesquels, les figures 1a et 1b qui illustrent l'état de la technique ayant déjà été décrites :

  • - la figure 2 représente une vue schématique, en perspective, et en position séparée des coquilles, d'un conteneur conforme à un premier mode de réalisation de la présente invention,
  • - la figure 3 représente une vue schématique en perspective du même conteneur, en position assemblée.
  • - la figure 4 représente une vue schématique partielle en perspective éclatée du même conteneur et illustre plus particulièrement la struc­ture du corps de celui-ci,
  • - la figure 5 représente une vue en coupe longitudinale du même conteneur selon un plan de coupe référencé V-V sur la figure 4, et
  • figure 6 représente une vue schématique en perspective éclatée d'un conteneur conforme à un second mode de réalisation de la présente invention.
Other characteristics, objects and advantages of the present invention will appear on reading the detailed description which follows, and with reference to the appended drawings, given by way of examples not limiting, in which, FIGS. 1a and 1b which illustrate the state of the art having already been described:
  • FIG. 2 represents a schematic view, in perspective, and in a position separated from the shells, of a container according to a first embodiment of the present invention,
  • - Figure 3 shows a schematic perspective view of the same container, in the assembled position.
  • FIG. 4 represents a partial schematic exploded perspective view of the same container and more particularly illustrates the structure of the body thereof,
  • FIG. 5 represents a view in longitudinal section of the same container according to a cutting plane referenced VV in FIG. 4, and
  • 6 shows a schematic exploded perspective view of a container according to a second embodiment of the present invention.

On va dans un premier temps décrire le premier mode de réalisation illustré sur les figures 2 à 5.We will first describe the first embodiment illustrated in FIGS. 2 to 5.

Le conteneur 100 illustré sur ces figures comprend un corps 120 et deux coquilles amovibles 160, 180.The container 100 illustrated in these figures comprises a body 120 and two removable shells 160, 180.

Le corps 120 et les coquilles 160, 180 forment en combinaison un boîtier cylindrique fermé centré sur un axe 102. Ce dernier constitue un axe de symétrie du conteneur.The body 120 and the shells 160, 180 form in combination a closed cylindrical housing centered on an axis 102. The latter constitutes an axis of symmetry of the container.

Le corps 100 comprend deux flasques parallèles 130, 140 reliés par deux entretoises 150, 155.The body 100 comprises two parallel flanges 130, 140 connected by two spacers 150, 155.

Le premier flasque 130 est formé d'un disque transversal à l'axe 102 et centré sur celui-ci.The first flange 130 is formed of a disc transverse to the axis 102 and centered on it.

Le second flasque 140 est constitué d'un voile également transversal à l'axe 102 et centré sur celui-ci. Le voile est délimité par une enveloppe en forme de disque pourvu de deux évidements 141, 144. Le rayon externe du flasque 140 égale le rayon externe du flasque 130. Les évidements 141, 144 débouchent sur la périphérie du flasque 140. Ils sont diamètralement opposés par rapport à l'axe 102. Ils ont la forme de secteurs circulaires centrés sur l'axe 102. L'évidement 141 est limité par les rayons 142, 143 présentant une ouverture angulaireα. Le second évidement 144 est limité par les rayons 145, 146 présentant de préférence la même ouverture angulaireα. Les rayons 142, 143 et 145, 146, et donc les évidements 141, 144, possèdent un plan de symétrie, passant par l'axe 102 et orthogonal au plan de coupe de la figure 5.The second flange 140 consists of a veil also transverse to the axis 102 and centered on it. The veil is delimited by a disc-shaped envelope provided with two recesses 141, 144. The external radius of the flange 140 equals the external radius of the flange 130. The recesses 141, 144 open onto the periphery of the flange 140. They are diametrically opposite with respect to the axis 102. They have the shape of circular sectors centered on the axis 102. The recess 141 is limited by the spokes 142, 143 having an angular opening. The second recess 144 is limited by the spokes 145, 146 preferably having the same angular opening α. The spokes 142, 143 and 145, 146, and therefore the recesses 141, 144, have a plane of symmetry, passing through the axis 102 and orthogonal to the section plane of FIG. 5.

De préférence l'ouverture angulaireα est de l'ordre de 90°.Preferably the angular opening α is of the order of 90 °.

Cependant, les évidements 141, 144 ne s'étendent pas jusqu'à l'axe 102 pour ne pas diviser le flasque 140 en deux éléments séparés, mais maintenir le flasque 140 sous forme unitaire.However, the recesses 141, 144 do not extend to the axis 102 so as not to divide the flange 140 into two separate elements, but to keep the flange 140 in unit form.

La zone radialement la plus interne des évidements 141, 144 est donc délimitée par des génératrices 147, 148 transversa­les au plan de symétrie précité des évidements.The radially innermost zone of the recesses 141, 144 is therefore delimited by generatrices 147, 148 transverse to the aforementioned plane of symmetry of the recesses.

Les entretoises 150, 155 sont diamètralement opposées par rapport à l'axe 102. Elles sont formées de secteurs de cylindre centrés sur l'axe 102. Les entretoises 150, 155 possèdent un rayon de courbure égal au rayon exérieur des flasques 130, 140. Les entretoises 150, 155 présentent une ouverture angulaire β complémentaire de celle des évidements 141, 144. En d'autres termes, l'entretoise 155 possède une ouverture angulaireβ égale à l'angle délimité par les rayons 143, 146. La seconde entretoise 150 possède une ouverture angulaireβ égale à l'angle délimité par les rayons 142, 145. Les entretoises 150, 155 s'étendent entre le flasque 130 et le flasque 140. Cependant elles se prolongent au delà du flasque 140 sous forme de nervures d'allure annulaire centrées sur l'axe 102, référencées 151, 156.The spacers 150, 155 are diametrically opposite with respect to the axis 102. They are formed by cylinder sectors centered on the axis 102. The spacers 150, 155 have a radius of curvature equal to the outside radius of the flanges 130, 140. The spacers 150, 155 have an angular opening β complementary to that of the recesses 141, 144. In other words, the spacer 155 has an angular openingβ equal to the angle delimited by the spokes 143, 146. The second spacer 150 has an angular opening β equal to the angle delimited by the spokes 142, 145. The spacers 150, 155 extend between the flange 130 and the flange 140. However, they extend beyond the flange 140 in the form of ribs of shape ring centered on axis 102, referenced 151, 156.

Les coquilles 160, 180 sont formées chacun d'une paroi 161, 181 et d'une toile 162, 182. Les parois 161, 181 sont formées de secteurs de cylindre centrés sur l'axe 102 ayant le même rayon et la même longueur que les entretoises 150, 155. Les parois 161, 181 présentent une ouverture angulaire complémentaire des entretoises 150, 155, soit égale à l'angleα. Les toiles 162, 182 sont délimitées par des secteurs circulaires généralement plans présentant la même ouverture angulaireα; le contour des toiles 162, 182 est complémenaire des évidements 141, 144. Les toiles 162, 182 sont transversales à l'axe 102. Les parois 161, 181 se raccordent à la périphérie des toiles 162, 182. Cependant elles se prolongent au delà des toiles 162, 182 sous forme de nervures centrées sur l'axe 102, référencées 163, 183.The shells 160, 180 are each formed by a wall 161, 181 and a fabric 162, 182. The walls 161, 181 are formed by cylinder sectors centered on the axis 102 having the same radius and the same length than the spacers 150, 155. The walls 161, 181 have an angular opening complementary to the spacers 150, 155, is equal to the angle α. The fabrics 162, 182 are delimited by generally flat circular sectors having the same angular opening α; the outline of the cloths 162, 182 is complementary to the recesses 141, 144. The cloths 162, 182 are transverse to the axis 102. The walls 161, 181 are connected to the periphery of the cloths 162, 182. However, they extend beyond fabrics 162, 182 in the form of ribs centered on the axis 102, referenced 163, 183.

En position assemblée, les nervures 151, 156, 163, 183 forment un anneau continu centré sur l'axe 102.In the assembled position, the ribs 151, 156, 163, 183 form a continuous ring centered on the axis 102.

De préférence, le corps 100 est constitué de deux éléments 103, 104, comme illustré sur la figure 4.Preferably, the body 100 consists of two elements 103, 104, as illustrated in FIG. 4.

L'élément 103 est formé par le flasque 130 et une colonne 132 solidaire de la face interne 135 du flasque 130 et centrée sur l'axce 102. La colonne 132 est munie d'un canal central 134.The element 103 is formed by the flange 130 and a column 132 secured to the internal face 135 of the flange 130 and centered on the axis 102. The column 132 is provided with a central channel 134.

Le second élément 104 est formé par le flasque 140, les deux entretoises 150, 155 et une canne cylindrique 157 centrée sur l'axe 102 solidaire de la face interne du flasque 140 entre les deux entretoises 150, 155. La canne 157 est adaptée pour recevoir la colonne 132.The second element 104 is formed by the flange 140, the two spacers 150, 155 and a cylindrical rod 157 centered on the axis 102 integral with the internal face of the flange 140 between the two spacers 150, 155. The rod 157 is suitable for receive column 132.

De préférence le flasque 130 est muni sur sa surface interne et sur sa périphérie d'une rainure annulaire 136 centrée sur l'axe 102. Cette rainure possède un rayon de courbure interne égal au rayon de courbure interne des entretoises 150, 155 et des parois 161, 181, pour recevoir l'extrémité de celle-ci opposée au flasque 140 et aux toiles 162, 182.Preferably the flange 130 is provided on its internal surface and on its periphery with an annular groove 136 centered on the axis 102. This groove has an internal radius of curvature equal to the radius of internal curvature of the spacers 150, 155 and of the walls 161, 181, to receive the end of the latter opposite the flange 140 and the fabrics 162, 182.

Plus précisément, de façon avantageuse, cette rainure 136 est délimitée par une surface 137, transversale à la surface interne 135 du flasque 130, qui n'est pas parallèle à l'axe 102, mais tronconique de révolution autour de l'axe 102 en convergeant vers cet axe 102 en éloignement de la surface 135. De plus, les coquilles 160,180 sont pourvues sur la surface interne des parois 161,181, à l'opposé des toiles 162,182 de nervures 184 complémentaires de la rainure 136 précitée. Grâce à l'engagement ainsi défini entre la rainure 136 et les nervures 184, les coquilles 160, 180 ne peuvent se déplacer axialement par rapport au corps 120 qu'après éjection du conteneur-disperseur hors d'une douille de cartouche.More precisely, advantageously, this groove 136 is delimited by a surface 137, transverse to the internal surface 135 of the flange 130, which is not parallel to the axis 102, but frustoconical of revolution around the axis 102 in converging on this axis 102 in away from the surface 135. In addition, the shells 160,180 are provided on the internal surface of the walls 161,181, opposite the webs 162,182 with ribs 184 complementary to the above-mentioned groove 136. Thanks to the engagement thus defined between the groove 136 and the ribs 184, the shells 160, 180 can only move axially relative to the body 120 after ejection of the container-disperser out of a cartridge case.

Pour assembler le corps 100, il suffit de placer la colonne 132 dans la canne 157. Lorsque les coquilles 160, 180 sont placées sur le corps 100, comme illustré sur la figure 3, elles forment avec celui-ci un boîtier cylindrique fermé apte à contenir un paquet de paillettes. Celles-ci sont de préférence placées parallèlement à l'axe 102.To assemble the body 100, it suffices to place the column 132 in the rod 157. When the shells 160, 180 are placed on the body 100, as illustrated in FIG. 3, they form therewith a closed cylindrical housing suitable for contain a packet of glitter. These are preferably placed parallel to the axis 102.

Le cas échéant il peut être ménagé plusieurs découpes dans le paquet de paillettes, transversalement à l'axe 102, à travers le corps 100 et/ou les coquilles 160, 180 pour réaliser des paillettes de différentes longueurs. Pour diversifier la longueur des paillettes, les flasques 130, 140 sont de préférence tronconqiues. Ces dispositions sont déjà décrites dans la demande de brevet FR-A- 2 521 716 au nom de la Demanderesse et ne seront donc pas décrites plus en détail par la suite. On notera cependant que de préférence lorsqu'il est prévu des paillettes couvrant toute la longueur des entretoises 150, 155, ces paillettes les plus longues, non coupées, sont placées en regard des coquilles 160, 180 pour être éjectées en premier, lors de la séparation des coquilles 160, 180.If necessary, several cuts can be made in the glitter package, transverse to the axis 102, through the body 100 and / or the shells 160, 180 to make glitter of different lengths. To diversify the length of the flakes, the flanges 130, 140 are preferably truncated. These arrangements are already described in patent application FR-A-2 521 716 in the name of the Applicant and will therefore not be described in more detail below. Note however that preferably when there is provided flakes covering the entire length of the spacers 150, 155, these longer flakes, uncut, are placed opposite the shells 160, 180 to be ejected first, during the separation of the shells 160, 180.

Le conteneur représenté sur les figures 2 à 5 annexées peut être placé dans une douille de cartouche lance-leurre telle que définie dans les demandes de brevet FR-A-2 521 716 et FR-A- 2 436 363 ou une cartouche équivalente.The container shown in FIGS. 2 to 5 appended can be placed in a decoy launch cartridge case as defined in patent applications FR-A-2 521 716 and FR-A-2 436 363 or an equivalent cartridge.

Lorsque le conteneur est éjecté hors de la douille, les nervures 163, 183 prévues sur les coquilles160, 180 offrent une "prise au vent" qui facilite la séparation de ces dernières.When the container is ejected from the sleeve, the ribs 163, 183 provided on the shells 160, 180 provide a "wind hold" which facilitates the separation of the latter.

Les paillettes placées en regard des coquilles 160, 180 sont dispersées en premier. Les paillettes placées en regard des entretoises 150, 155 sont dispersées ultérieurement sur la trajectoire du conteneur.The flakes placed opposite the shells 160, 180 are dispersed first. The flakes placed opposite the spacers 150, 155 are dispersed later on the trajectory of the container.

Le flasque 130 peut contenir une charge pyrotechnique de dépotement, tandis que la colonne 132 et la canne 157 peuvent contenir des relais et retard pyrotechniques, comme enseignés par les documents FR-A-2 B521 716 et FR-A-2 436 363, pour diffuser successivement une pluralité de charges élémentaires de leurres placées dans des conteneurs respectifs empilés dans une cartouche commune.The flange 130 can contain a pyrotechnic charge for depositing, while the column 132 and the cane 157 can contain pyrotechnic relays and delays, as taught by documents FR-A-2 B521 716 and FR-A-2 436 363, for successively distribute a plurality of elementary charges of lures placed in respective containers stacked in a common cartridge.

On va maintenant décrire le second mode de réalisation illustrés sur la figure 6.We will now describe the second embodiment illustrated in FIG. 6.

Le conteneur 200 illustré sur cette figure 6 comprend un corps 220.The container 200 illustrated in this FIG. 6 comprises a body 220.

Le corps 200 comprend deux flasques 230, 240 en forme de disque, parallèles entre eux, de même rayon et centrés sur le même axe 202.The body 200 comprises two flanges 230, 240 in the form of a disc, mutually parallel, of the same radius and centered on the same axis 202.

Les flasques 230, 240 sont reliés par une pluralité de tiges 250, 251, 252 parallèles entre elles et à l'axe 202. Les tiges 250, 251 et 252 sont équiréparties autour de l'axe 202. Elles sont au nombre de 3 selon l'illustration de la figure 6. Ce nombre ne doit pas être limitatif. Les tiges 250, 251, 252 sont placées en retrait à l'intérieur du volume circonscrit par les flasques 230, 240.The flanges 230, 240 are connected by a plurality of rods 250, 251, 252 parallel to each other and to the axis 202. The rods 250, 251 and 252 are equally distributed around the axis 202. They are 3 in number according to the illustration of figure 6. This number should not be limiting. The rods 250, 251, 252 are set back inside the volume circumscribed by the flanges 230, 240.

De préférence les flasques 230, 240 sont munis chacun d'un alésage central 232, 242 permettant l'introduction entre les flasques 230, 240 d'un fourreau cylindrique central aligné sur les alésages précités et adapté pour recevoir un élément pyrotechnique,tel qu'un retard ou un relais, de façon similaire à la colonne 132.Preferably the flanges 230, 240 are each provided with a central bore 232, 242 allowing the introduction between the flanges 230, 240 of a central cylindrical sheath aligned with the aforementioned bores and adapted to receive a pyrotechnic element, such as a delay or a relay, similar to column 132.

Lorsque le conteneur 200 est éjecté hors d'une douille de cartouche, les paillettes sont automatiquement dispersées. Cependant grâce aux entretoises 250, 251, 252, les paillettes ne sont pas toutes expulsées simultanément hors du conteneur 200. Elle sont dispersées progressivement et couvrent ainsi une surface optimale pour la déception des systèmes de guidage d'arme.When the container 200 is ejected from a cartridge case, the flakes are automatically dispersed. However, thanks to the spacers 250, 251, 252, the flakes are not all simultaneously expelled from container 200. They are gradually dispersed and thus cover an optimal surface for the disappointment of weapon guidance systems.

De préférence, selon le second mode de réalisation, les paillettes sont placées transversalement à l'axe 202.Preferably, according to the second embodiment, the flakes are placed transversely to the axis 202.

Bien entendu la présente invention n'est pas limitée aux modes de réalisation qui viennent d'être décrits mais s'étend à toutes variantes conforme à son esprit.Of course the present invention is not limited to the embodiments which have just been described but extends to all variants in accordance with its spirit.

Claims (15)

1. Conteneur-disperseur de paillettes métalliques ou métal­lisées formant écran réflecteur aux ondes électromagnétiques et constituant des leurres, caractérisé par le fait qu'il comprend deux flasques (130, 140 ; 230, 240) généralement parallèles reliés par des entretoises (150, 155 ;250, 251, 252) adaptées pour former piège à l'égard des paillettes, afin de retenir temporairement au moins une partie de celles-ci lorsque le conteneur est éjecté hors d'une douille et contrôler une dispersion échelonnée des paillettes.1. Container-disperser of metallic or metallized flakes forming a screen reflecting electromagnetic waves and constituting decoys, characterized in that it comprises two flanges (130, 140; 230, 240) generally parallel connected by spacers (150, 155 ; 250, 251, 252) adapted to form a trap with regard to the flakes, in order to temporarily retain at least part of these when the container is ejected from a socket and to control a staggered dispersion of the flakes. 2. Conteneur disperseur selon la revendication 1 caractérisé par le fait qu'il comprend un corps composé de deux flasque (130, 140) généralement parallèles reliés rigidement par des entretoises (150, 155) et au moins une coquille (160, 180) amovible, dans lequel les entretoises (150, 155) et la ou les coquille(s) (160, 180) forme(nt) en combinaison une enveloppe continue entre les deux flasques (130, 140).2. Dispersing container according to claim 1 characterized in that it comprises a body composed of two flange (130, 140) generally parallel rigidly connected by spacers (150, 155) and at least one removable shell (160, 180) , in which the spacers (150, 155) and the shell (s) (160, 180) form (s) in combination a continuous envelope between the two flanges (130, 140). 3. Conteneur disperseur selon la revendication 2, caracté­risé par le fait qu'il comprend deux coquilles amovibles opposées (160, 180).3. Dispersing container according to claim 2, characterized in that it comprises two opposite removable shells (160, 180). 4. Conteneur disperseur selon l'une des revendications 2 ou 3, caractérisé par le fait que les deux flasques (130, 140) sont délimités par des pourtours généralemnt circulaires et coaxiaux et par le fait que les entretoises (150, 155) délimitent en combinaison avec les coquilles (160, 180) une enveloppe cylindrique, de même rayon que les deux flasques (130, 140) et coaxiale à ceux-ci.4. Dispersing container according to one of claims 2 or 3, characterized in that the two flanges (130, 140) are delimited by generally circular and coaxial edges and by the fact that the spacers (150, 155) delimit combination with the shells (160, 180) a cylindrical envelope, of the same radius as the two flanges (130, 140) and coaxial with them. 5. Conteneur disperseurselon l'une des revendications 2 à 4, caractérisé par le fait que l'un au moins des flasques (130, 140) possède au moins un évidement périphérique (141, 144) et par le fait que la ou les coquille(s) (160, 180) possède(nt) une toile (162, 182) complémentaire de l'évidement.5. A disperser container according to one of claims 2 to 4, characterized in that at least one of the flanges (130, 140) has at least one peripheral recess (141, 144) and in that the shell (s) (s) (160, 180) has (s) a canvas (162, 182) complementary to the recess. 6. Conteneur disperseur selon l'une des revendications 1 à 5, caractérisé par le fait qu'il comprend, d'une part, un corps (100) composé de deux flasques (130, 140) généralement parallèles, un premier flasque (130) en forme générale de disque, un second flasque (140) constitué d'un voile délimité par une enveloppe en forme de disque pourvu de deux évidements (141, 144) diamètralement opposés en forme de secteurs circulaires débouchant sur la périphérie du second flasque, et deux entretoises en forme de secteurs de cylindre diamètralement opposés reliant les deux flasques, d'autre part deux coquilles amovibles composées chacune d'une paroi en forme de secteur de cylindre complémentaire des entretoises et une toile orthogonale à ladite paroi, en forme de secteur circulaire complémentaire des évidements.6. Dispersing container according to one of claims 1 to 5, characterized in that it comprises, on the one hand, a body (100) composed of two flanges (130, 140) generally parallel, a first flange (130 ) generally in the form of a disc, a second flange (140) consisting of a veil delimited by a disc-shaped envelope provided with two diametrically opposite recesses (141, 144) in the form of circular sectors opening onto the periphery of the second flange, and two spacers in the form of diametrically opposite cylinder sectors connecting the two flanges, on the other hand two removable shells each composed of a sector-shaped wall of cylinder complementary to the spacers and a canvas orthogonal to said wall, in the form of sector circular complementary to the recesses. 7. Conteneur disperseur selon l'une des revendications 2 à 6, caractérisé par le fait que chaque coquille (160, 180) soustend un angle de l'ordre de 90°.7. Dispersing container according to one of claims 2 to 6, characterized in that each shell (160, 180) subtends an angle of the order of 90 °. 8. Conteneur disperseur selon l'une des revendications 5 ou 6, caractérisé par le fait que la paroi latérale (161, 181) des coquilles (160, 180) se prolonge au delà de la toile (162, 182) qui lui est transversale.8. Dispersing container according to one of claims 5 or 6, characterized in that the side wall (161, 181) of the shells (160, 180) extends beyond the fabric (162, 182) which is transverse to it . 9. Conteneur disperseur selon l'une des revendications 1 à 8, caractérisé par le fait que les flasques (130, 140) ont une forme générale tronconique.9. Dispersing container according to one of claims 1 to 8, characterized in that the flanges (130, 140) have a generally frustoconical shape. 10. Conteneur disperseur selon l'une des revendications 1 à 9, caractérisé par le fait qu'il contient des paillettes parallèles orientées transversalement aux flasques (130, 140).10. Dispersing container according to one of claims 1 to 9, characterized in that it contains parallel flakes oriented transversely to the flanges (130, 140). 11. Conteneur disperseur selon l'une des revendications 1 à 10, caractérisé par le fait que des découpes généralement parallèles aux flasques (130, 140) sont ménagées dans le bloc de paillettes.11. Dispersing container according to one of claims 1 to 10, characterized in that the cuts generally parallel to the flanges (130, 140) are formed in the block of glitter. 12. Conteneur disperseur selon la revendication 1, caractérisé par le fait qu'il comprend un corps (220) composé de deux flasques (230, 240) généralement parallèles reliés rigidement par des tiges entretoises (250, 251, 252) placées en retrait à l'intérieur du volume circonscrit par les flasques.12. Dispersing container according to claim 1, characterized in that it comprises a body (220) composed of two generally parallel flanges (230, 240) rigidly connected by spacer rods (250, 251, 252) set back inside the volume circumscribed by the flanges. 13. Conteneur disperseur selon la revendication 12, caractérisé par le fait que les deux flasques (230, 240) sont délimités par des pourtours généralement circulaires et coaxiaux et par le fait que les entretoises (250, 251, 252) sont formées d'une pluralité de tiges parallèles équiréparties autour de l'axe (202) des flasques.13. Dispersing container according to claim 12, characterized in that the two flanges (230, 240) are delimited by generally circular and coaxial edges and by the fact that the spacers (250, 251, 252) are formed from a plurality of parallel rods equally distributed around the axis (202) of the flanges. 14. Conteneur disperseur selon l'une des revendications 12 à 13, caractérisé par le fait que les paillettes sont orientées parallèle­ment aux flasques (230, 240).14. Dispersing container according to one of claims 12 to 13, characterized in that the flakes are oriented parallel to the flanges (230, 240). 15. Conteneur disperseur selon l'une des revendications 1 à 14, caractérisé par le fait que les deux flasques (130, 140 ; 230, 240) sont reliés par une canne creuse centrale (157) apte à recevoir un élément pyrotechnique.15. Dispersing container according to one of claims 1 to 14, characterized in that the two flanges (130, 140; 230, 240) are connected by a central hollow rod (157) capable of receiving a pyrotechnic element.
EP88401500A 1987-06-16 1988-06-16 Container for metal or metallised flakes used as electromagnetic decoys Expired - Lifetime EP0296063B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88401500T ATE71219T1 (en) 1987-06-16 1988-06-16 CONTAINER FOR METALLIC OR METALLIZED BLADES FOR USE AS AN ELECTROMAGNETIC DECEIVE REFLECTOR.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8708385 1987-06-16
FR8708385A FR2616899B1 (en) 1987-06-16 1987-06-16 CONTAINER-DISPERSER OF METAL OR METALLIC FLAKES FORMING ELECTROMAGNETIC LURES

Publications (2)

Publication Number Publication Date
EP0296063A1 true EP0296063A1 (en) 1988-12-21
EP0296063B1 EP0296063B1 (en) 1992-01-02

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EP88401500A Expired - Lifetime EP0296063B1 (en) 1987-06-16 1988-06-16 Container for metal or metallised flakes used as electromagnetic decoys

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US (1) US4899662A (en)
EP (1) EP0296063B1 (en)
AT (1) ATE71219T1 (en)
CA (1) CA1311965C (en)
DE (1) DE3867330D1 (en)
ES (1) ES2029523T3 (en)
FI (1) FI93577C (en)
FR (1) FR2616899B1 (en)
GR (1) GR3004196T3 (en)
NO (1) NO167689C (en)

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US5411225A (en) * 1993-07-26 1995-05-02 Lannon; Robert G. Reusable non-pyrotechnic countermeasure dispenser cartridge for aircraft
DE19704070C2 (en) * 1997-02-04 1998-12-24 Buck Chem Tech Werke Camouflage and / or deception device
US5915694A (en) * 1998-01-09 1999-06-29 Brum; Roger D. Decoy utilizing infrared special material
DE20020099U1 (en) 2000-11-27 2001-04-05 TRW Airbag Systems GmbH & Co. KG, 84544 Aschau Gas generator
US6571714B1 (en) 2001-12-26 2003-06-03 Meggitt Defense Systems Silicon window infrared augmenter
US20050040165A1 (en) * 2003-08-22 2005-02-24 Reynolds Paul A. Multi-segment container
US7118008B2 (en) * 2005-01-31 2006-10-10 Nick Hsu Label tag dispenser
US7467758B2 (en) * 2005-09-09 2008-12-23 Meggitt Defense Systems Reel-out, reel-in magazine and towline cartridge
US8132492B1 (en) 2009-02-09 2012-03-13 Meggitt Defense Systems Dispensing device for infrared special material
GB2601782B (en) * 2020-12-10 2024-09-11 Bae Systems Plc Countermeasure device

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US3960085A (en) * 1967-05-25 1976-06-01 The United States Of America As Represented By The Secretary Of The Navy Variable geometry warhead
EP0029078A1 (en) * 1979-11-13 1981-05-27 Societe E. Lacroix - Tous Artifices Pistol-fired cartridge for disseminating electromagnetic chaff
DE3327043A1 (en) * 1983-07-27 1985-02-07 Technisch-Mathematische Studiengesellschaft mbH, 5300 Bonn Device for scattering electromagnetic decoy material, particularly from a rocket

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US3674174A (en) * 1970-06-12 1972-07-04 Smith & Wesson Chem Airborne dispenser
FR2436363A1 (en) * 1978-09-15 1980-04-11 Lacroix E Target material scatter cartridge - contains separate charges ignited in succession after release from aircraft
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US4406227A (en) * 1981-04-09 1983-09-27 The United States Of America As Represented By The Secretary Of The Army System for multistage, aerial dissemination and rapid dispersion of preselected substances
FR2521716B1 (en) * 1982-02-17 1987-01-02 Lacroix E Tous Artifices MULTI-LOAD ELECTROMAGNETIC LURE LAUNCHER CARTRIDGE

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US3335846A (en) * 1965-05-05 1967-08-15 Ronald E Mills Container
US3757694A (en) * 1965-10-22 1973-09-11 Us Navy Fragment core warhead
US3960085A (en) * 1967-05-25 1976-06-01 The United States Of America As Represented By The Secretary Of The Navy Variable geometry warhead
EP0029078A1 (en) * 1979-11-13 1981-05-27 Societe E. Lacroix - Tous Artifices Pistol-fired cartridge for disseminating electromagnetic chaff
DE3327043A1 (en) * 1983-07-27 1985-02-07 Technisch-Mathematische Studiengesellschaft mbH, 5300 Bonn Device for scattering electromagnetic decoy material, particularly from a rocket

Also Published As

Publication number Publication date
FI882860A0 (en) 1988-06-15
FI93577B (en) 1995-01-13
FR2616899A1 (en) 1988-12-23
NO167689C (en) 1991-11-27
NO167689B (en) 1991-08-19
CA1311965C (en) 1992-12-29
ATE71219T1 (en) 1992-01-15
DE3867330D1 (en) 1992-02-13
US4899662A (en) 1990-02-13
ES2029523T3 (en) 1992-08-16
GR3004196T3 (en) 1993-03-31
EP0296063B1 (en) 1992-01-02
NO882659L (en) 1988-12-19
FI882860A (en) 1988-12-17
FI93577C (en) 1995-04-25
FR2616899B1 (en) 1993-04-02
NO882659D0 (en) 1988-06-15

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