EP0296063A1 - Behälter für metallische oder metallisierte Blättchen zur Verwendung als elektromagnetischer Täuschreflektor - Google Patents

Behälter für metallische oder metallisierte Blättchen zur Verwendung als elektromagnetischer Täuschreflektor 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
Authority
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
Other languages
English (en)
French (fr)
Other versions
EP0296063B1 (de
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
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Etienne LaCroix Tous Artifices SA filed Critical Etienne LaCroix Tous Artifices SA
Priority to AT88401500T priority Critical patent/ATE71219T1/de
Publication of EP0296063A1 publication Critical patent/EP0296063A1/de
Application granted granted Critical
Publication of EP0296063B1 publication Critical patent/EP0296063B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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.

Landscapes

  • 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)
  • Vending Machines For Individual Products (AREA)
  • Toys (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
  • Materials For Medical Uses (AREA)
  • Adornments (AREA)
  • Aerials With Secondary Devices (AREA)
  • Combined Means For Separation Of Solids (AREA)
  • Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)
  • Packages (AREA)
  • Transmission Of Braking Force In Braking Systems (AREA)
EP88401500A 1987-06-16 1988-06-16 Behälter für metallische oder metallisierte Blättchen zur Verwendung als elektromagnetischer Täuschreflektor Expired - Lifetime EP0296063B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88401500T ATE71219T1 (de) 1987-06-16 1988-06-16 Behaelter fuer metallische oder metallisierte blaettchen zur verwendung als elektromagnetischer taeuschreflektor.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8708385 1987-06-16
FR8708385A FR2616899B1 (fr) 1987-06-16 1987-06-16 Conteneur-disperseur de paillettes metalliques ou metallisees formant leurres electromagnetiques

Publications (2)

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

Family

ID=9352104

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88401500A Expired - Lifetime EP0296063B1 (de) 1987-06-16 1988-06-16 Behälter für metallische oder metallisierte Blättchen zur Verwendung als elektromagnetischer Täuschreflektor

Country Status (10)

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

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5411225A (en) * 1993-07-26 1995-05-02 Lannon; Robert G. Reusable non-pyrotechnic countermeasure dispenser cartridge for aircraft
DE19704070C2 (de) * 1997-02-04 1998-12-24 Buck Chem Tech Werke Tarn- und/oder Täuscheinrichtung
US5915694A (en) * 1998-01-09 1999-06-29 Brum; Roger D. Decoy utilizing infrared special material
DE20020099U1 (de) 2000-11-27 2001-04-05 TRW Airbag Systems GmbH & Co. KG, 84544 Aschau Gasgenerator
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

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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 (de) * 1979-11-13 1981-05-27 Societe E. Lacroix - Tous Artifices Patrone für Pistolen zum Verteilen elektromagnetischer Düppel
DE3327043A1 (de) * 1983-07-27 1985-02-07 Technisch-Mathematische Studiengesellschaft mbH, 5300 Bonn Vorrichtung zum ausstreuen elektromagnetischen scheinzielmaterials, insbesondere aus einer rakete

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3674174A (en) * 1970-06-12 1972-07-04 Smith & Wesson Chem Airborne dispenser
FR2436363A1 (fr) * 1978-09-15 1980-04-11 Lacroix E Cartouche a plusieurs charges de leurres distinctes
GB2091855B (en) * 1980-12-23 1985-12-18 Wallop Ind Ltd Chaff rocket
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 (fr) * 1982-02-17 1987-01-02 Lacroix E Tous Artifices Cartouche lance-leurres electromagnetiques a charges multiples

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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 (de) * 1979-11-13 1981-05-27 Societe E. Lacroix - Tous Artifices Patrone für Pistolen zum Verteilen elektromagnetischer Düppel
DE3327043A1 (de) * 1983-07-27 1985-02-07 Technisch-Mathematische Studiengesellschaft mbH, 5300 Bonn Vorrichtung zum ausstreuen elektromagnetischen scheinzielmaterials, insbesondere aus einer rakete

Also Published As

Publication number Publication date
FR2616899B1 (fr) 1993-04-02
CA1311965C (en) 1992-12-29
EP0296063B1 (de) 1992-01-02
FI93577C (fi) 1995-04-25
FI93577B (fi) 1995-01-13
FI882860A (fi) 1988-12-17
NO882659D0 (no) 1988-06-15
DE3867330D1 (de) 1992-02-13
NO882659L (no) 1988-12-19
NO167689B (no) 1991-08-19
FR2616899A1 (fr) 1988-12-23
ES2029523T3 (es) 1992-08-16
NO167689C (no) 1991-11-27
FI882860A0 (fi) 1988-06-15
GR3004196T3 (de) 1993-03-31
ATE71219T1 (de) 1992-01-15
US4899662A (en) 1990-02-13

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