EP0488863A1 - Pyrotechnischer Detonator mit Koaxialverbindungen - Google Patents

Pyrotechnischer Detonator mit Koaxialverbindungen Download PDF

Info

Publication number
EP0488863A1
EP0488863A1 EP91403158A EP91403158A EP0488863A1 EP 0488863 A1 EP0488863 A1 EP 0488863A1 EP 91403158 A EP91403158 A EP 91403158A EP 91403158 A EP91403158 A EP 91403158A EP 0488863 A1 EP0488863 A1 EP 0488863A1
Authority
EP
European Patent Office
Prior art keywords
anvil
detonator
ring
sleeve
socket
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
EP91403158A
Other languages
English (en)
French (fr)
Other versions
EP0488863B1 (de
Inventor
Thierry Aureal
Joel Bansard
Gérard Humily
Christophe Riviere
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.)
Thomson Brandt Armements SA
Original Assignee
Thomson Brandt Armements 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 Thomson Brandt Armements SA filed Critical Thomson Brandt Armements SA
Publication of EP0488863A1 publication Critical patent/EP0488863A1/de
Application granted granted Critical
Publication of EP0488863B1 publication Critical patent/EP0488863B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B3/00—Blasting cartridges, i.e. case and explosive
    • F42B3/10—Initiators therefor
    • F42B3/195—Manufacture
    • F42B3/198—Manufacture of electric initiator heads e.g., testing, machines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B3/00—Blasting cartridges, i.e. case and explosive
    • F42B3/10—Initiators therefor
    • F42B3/12—Bridge initiators
    • F42B3/124—Bridge initiators characterised by the configuration or material of the bridge

Definitions

  • the present invention relates to a pyrotechnic detonator with coaxial connections, of the sprayed layer type.
  • Such detonators also known under the name of “slapper-detonator” or “Exploiding foil Initiator” in the Anglo-Saxon literature
  • the invention relates more particularly to the first type of process in which a conductive element is used on which the material to be projected has been placed.
  • an electrical discharge of very short duration but of very high intensity, is sent into the electrical element.
  • the material is then projected against the intermediate load and causes its initiation.
  • a first category of this type of detonator described in French patent application No. 87 08813 filed on June 23, 1987, is equipped with an electrical element consisting of two strands connected at their ends and placed close enough to each other to constitute a conductor with little inductive effect.
  • This electrical element exits laterally at least on one of the walls of the device to connect to an external electrical supply.
  • This flat connection is difficult to implement and is very fragile.
  • the realization of such a system poses problems of integration, size, tightness and hermeticity.
  • detonators Another category of detonators, described in the same patent application, has an electrical element, the power supply of which is carried out using two electrodes, placed perpendicularly to the electrical element.
  • the space requirement even if it is reduced compared to the production of the first type of detonator, is always significant.
  • sealing and hermeticity problems which are not resolved in this system and which can promote events, for example corrosion of the conductive element, tending to deteriorate the system.
  • the present invention relates to a detonator starting from the same principles but notably improving the previous device from the point of view in particular of simplicity, robustness and cost, thanks to a lighter and more compact structure.
  • a pyrotechnic detonator with coaxial connections of the type comprising electric control means with a sprayed layer, composed of a barrel, a first cylindrical element forming an anvil and an assembly consisting of a fuse bridge on which is positioned a thin layer of a material and placed between the first element cylindrical and the barrel, means for supplying power to said control means, comprising at least one conductive surface disposed on the bottom of the anvil and hermetic electrical passage means connecting said conductive surface and one end of said fuse bridge through said anvil, and pyrotechnic means triggered by said electric sprayed layer control means, said detonator being characterized in that it further comprises a second non-conductive cylindrical element forming a socket, one end of which rests on said anvil and the other end has a guide shoulder, a flexible cylindrical contact piece being wound around said sleeve between said shoulder and the circular edge of the anvil, in that there are means for hermetic assembly between said sleeve and said anvil
  • the detonator according to the invention is a projected layer detonator ("slapper detonator” or even EFI “Exploding Foil Initiator” in Anglo-Saxon literature). It comprises in known manner, as was briefly indicated above, an electrical circuit such that a current pulse of a few thousand amps generated in a few tens of nanoseconds causes the volatilization of part of a metallic conductor ( fuse bridge) and the formation of a metallic plasma. The very brutal expansion of the confined metallic plasma is used to project onto the face of a secondary explosive charge a projectile consisting of a disc of plastic material a few tens of micrometers thick and with a diameter of the order of millimeter. The detonation of the secondary explosive charge of the detonator is triggered by the impact of the projectile on the explosive with a very high impact speed.
  • FIG. 1 represents in section an embodiment of a detonator according to the invention based on these principles of operation.
  • This detonator essentially comprises a cylindrical metallic anvil 1 carrying a fuse bridge 112, a socket 2 of revolution made of dielectric material, electrical control means with a sprayed layer comprising the fuse bridge, a layer of material 13 and a mechanical confinement obtained at using a barrel 3 comprising a hole 30, pyrotechnic means 4, 5, 6 and a cover 8 closing the assembly.
  • the socket-anvil assembly is assembled using a part 12 in the form of a cylindrical ring with a flange.
  • the anvil 1 is for example a cylindrical piece of alumina which has on its bottom a conductive surface 10 in the form, for example, of a disc, serving as an electrical contact zone.
  • a conductive surface 10 in the form, for example, of a disc, serving as an electrical contact zone.
  • the fuse bridge 112 On the opposite face of the anvil 1 is formed, as shown in FIG. 2, the fuse bridge 112, one end 111 of which is connected to a peripheral circular conductive surface 110 and the other end of which is connected to the conductive surface 10 of contact by at least one hermetic electrical crossing 14, constituted for example by a metallized hole filled or closed by a conductive element.
  • the assembly 11 of the conductive surface 110 and the fuse bridge 111, 112 is obtained for example by metallization.
  • the sleeve 2 (FIG. 1) is a part of revolution, in alumina for example, having a cylindrical body and a guide shoulder 20.
  • the sleeve 2 is connected to the anvil 1 by the cylindrical collar ring 12, for example by brazing, the flange being brazed on the surface 110 of the anvil 1.
  • the upper face (in the position shown in FIG. 1) of the guide shoulder 20 carries a bearing surface 21 intended to transmit the contact pressure necessary for the flat connection 10 of the detonator with an external box, not shown.
  • a closing cylinder 7 In the opening of the sleeve 2 on the side of the shoulder 20 is fixed, for example by brazing, a closing cylinder 7.
  • This cylinder can in particular be made of stainless steel.
  • a disc of material 13 for example of polyimide (disc called “flyer” in Anglo-Saxon literature). This disc is held in place against the fuse bridge on the anvil 1 by the barrel 3 which can also be made of alumina.
  • the pyrotechnic means consist of a cylindrical case 4, for example made of stainless steel, in which an explosive charge composed of two secondary explosives 5 and 6 is contained.
  • the assembly formed of the material 13, of the barrel 3 and of the pyrotechnic means 4, 5, 6 is put in compression against the anvil 1 thanks to the cover 8 made integral with the closing cylinder 7.
  • a flexible cylindrical contact part 9 comprises a cylindrical part in contact or brazed to the ring 12 and flexible folded tabs. The part 9 is therefore electrically connected to the end 111 of the fuse bridge via the ring 12 and the conductive surface 110 on the anvil 1.
  • the assembled detonator can be very easily inserted into a cylindrical casing comprising at the bottom and on its internal lateral face two conductive surfaces constituting the electrical supply inlets of the initiation system, and which are in contact respectively with the contact surface 10 and the tabs of part 9 of the detonator. It is also very easy to remove the detonator from the housing, for example to carry out tests.
  • the anvil 1 is obtained from a large alumina substrate.
  • the substrate is pierced with holes which are plugged with copper to make the watertight bushings 14.
  • To plug these holes one can either braze a copper pin in each hole after the inner surface of the holes has been metallized, or fill the holes by suction with a screen printing paste.
  • After rectification of the two faces of the alumina substrate these are metallized by sputtering.
  • the metallization preferably comprises, in addition, a gold layer of a few micrometers for the protection of the contacts 10.
  • the desired geometry for the circuits of the two faces is then obtained by chemical etching. Finally, each anvil is cut by laser in the substrate.
  • the sleeve 2 is also made of alumina which can be machined in the mass or obtained by sintering then rectification. The sleeve is metallized on its external lateral face and on its internal diameter at the level of the guide shoulder.
  • the closing cylinder 7 is brazed at high temperature on the bushing then the flange ring 12 is brazed at low temperature on the bushing.
  • the cylindrical contact piece 9 can be obtained from a strip of copper-beryllium alloy from which the contact tabs are cut. The tabs are then curved by forming, then the strip is rolled up and cut to the correct length. The open ring thus obtained is annealed to stabilize its mechanical properties, in particular its elasticity. It can be browned to ensure better resistance to corrosion.
  • the pyrotechnic means comprise a cylindrical case 4 of stainless steel in which the explosive charge is placed.
  • the loading of these two explosives is carried out by compression at constant height in the case 4.
  • the use of two secondary explosives is given only as an example.
  • the mounting of the detonator according to the invention is carried out in two stages: assembly of the inert body (anvil, contact piece socket, closing cylinder) then mounting of the plastic material 13, of the barrel and of the loaded case and closing of the thanks to the cover.
  • the closing cylinder 7 is first brazed at high temperature on the sleeve 2 and then the cylindrical ring 12 is brazed at low temperature on the sleeve.
  • the assembly is then brazed on the metallized anvil (brazing of the collar of the ring 12 on the surface 110).
  • the cylindrical contact part 9 (open ring) is then transferred to the body of the sleeve 2 and of the ring 12 where it is kept in contact simply by its elasticity or by soldering.
  • the plastic material disc 13, the barrel 3 and the loaded case 4 are successively introduced into the assembly assembled during the first step.
  • the cover 8 covers the assembly and ensures sufficient compression of the elements 13, 3 and 4, 5, 6 against the anvil 1 for the confinement of the copper plasma during the operation of the detonator.
  • the cover 8 is made integral with the closing cylinder 7 by laser welding.
  • one of the major advantages of the detonator according to the invention is total airtightness. This hermeticity is ensured by the soldering of the ring 12 on the anvil 1 and the sleeve 2, of the closing cylinder 7 on the sleeve 2, by the laser welding of the cover 8 on the cylinder 7 and by the hermetic electrical bushings 14.
  • the active parts of the detonator fuse bridge 112, plastic material 13 and explosive charge 4, 5, 6) are thus protected from corrosion and aging due to the ambient atmosphere, which allows prolonged storage.
  • the architecture of the detonator allows, as already mentioned, easy installation and disassembly, which allows maintenance operations and testing of electronic ignition means.
  • the lightness of the detonator and its particularly compact architecture make it able to withstand the mechanical stresses that it is likely to encounter in various types of ammunition.
  • Another major advantage of the detonator according to the invention is the possibility of automating its production, therefore of reducing its cost.
  • FIG. 3 an alternative embodiment of the sleeve.
  • the sleeve 2 ′, the closing cylinder 7 ′ and the ring 12 ′ are produced and assembled in a single operation.
  • the socket 2 ′ is produced from a plastic material, by injection, the cylinder 7 ′ and the ring 12 ′ being inserts embedded in the socket.
  • FIG. 3 shows, by way of example, possible shapes for the ring 12 ′, bent at 120 inwards on the side opposite the flange, and for the cylinder 7 ′ having beads 70 outwards at the level of its insertion in the socket 2 ′.
  • This includes, like the sleeve 2 of Figure 1, a guide shoulder 20 'with a pressure surface 21'.
  • the sleeve 2 ′ with the cylinder 7 ′ and the ring 12 ′ fulfills exactly the same functions as the alumina sleeve 2 assembled with the closing cylinder 7 and the ring 12 of FIG. 1.
  • the sleeve 2 ′ can be made of high-performance polymer material, for example by injection of a polyetheretherketone (PEEK) loaded with glass fibers for a good mechanical resistance.
  • PEEK polyetheretherketone
  • PET Polyethersulfone
  • the chosen material must withstand high temperatures (minimum 200 ° C) and be waterproof even when thin.
  • the anvil 1 can also be made with the same materials according to the same technique.
  • the sealed bushings 14 and the planar contact surface 10 are then produced in the form of inserts. Only the fuse circuit and the conductive surface 110 are produced by sputtering and chemical etching.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Air Bags (AREA)
EP91403158A 1990-11-27 1991-11-22 Pyrotechnischer Detonator mit Koaxialverbindungen Expired - Lifetime EP0488863B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9014785A FR2669725B1 (fr) 1990-11-27 1990-11-27 Detonateur pyrotechnique a connexions coaxiales.
FR9014785 1990-11-27

Publications (2)

Publication Number Publication Date
EP0488863A1 true EP0488863A1 (de) 1992-06-03
EP0488863B1 EP0488863B1 (de) 1995-09-13

Family

ID=9402616

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91403158A Expired - Lifetime EP0488863B1 (de) 1990-11-27 1991-11-22 Pyrotechnischer Detonator mit Koaxialverbindungen

Country Status (5)

Country Link
US (1) US5204491A (de)
EP (1) EP0488863B1 (de)
CA (1) CA2056170A1 (de)
DE (1) DE69113001T2 (de)
FR (1) FR2669725B1 (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2698687A1 (fr) * 1992-12-01 1994-06-03 Giat Ind Sa Initiateur pyrotechnique.
EP0648997A1 (de) * 1993-10-13 1995-04-19 Thomson Brandt Armements Hoch-energetische Zünder
EP0651229A2 (de) * 1993-09-01 1995-05-03 Schlumberger Limited Zündsystem für Bohrlochperforator, wobei dieses Zündsystem einen explosionsfähigen folieumfassenden Detonator hat
FR2738060A1 (fr) * 1995-08-24 1997-02-28 Univ Auburn Dispositif electro-explosif realise sur substrat
US6363853B1 (en) * 1999-09-17 2002-04-02 Apti, Inc. Electrically initiated distributed igniter
EP1367355A1 (de) * 2002-05-29 2003-12-03 Giat Industries Sicherheitsplasmazündelement
EP1367356A1 (de) * 2002-05-29 2003-12-03 Giat Industries Sicherheitszündelement

Families Citing this family (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZA946555B (en) * 1993-05-28 1995-06-12 Altech Ind Pty Ltd An electric igniter
US5969286A (en) * 1996-11-29 1999-10-19 Electronics Development Corporation Low impedence slapper detonator and feed-through assembly
US6131515A (en) * 1997-12-11 2000-10-17 Remington Arms Company, Inc. Electric primer
FR2811749B1 (fr) 2000-07-13 2003-03-07 Tda Armements Sas Initiateur electro-pyrotechnique securise a haute energie
US9329011B1 (en) 2001-02-28 2016-05-03 Orbital Atk, Inc. High voltage arm/fire device and method
DE10132175A1 (de) * 2001-07-03 2003-01-23 Rheinmetall W & M Gmbh Verfahren zum Auswechseln eines Zündergehäuses
US6915744B2 (en) * 2001-07-05 2005-07-12 Special Devices, Inc. Pyrotechnic initiator with on-board control circuitry
US6847001B2 (en) * 2002-08-22 2005-01-25 Delphi Technologies, Inc. Method for metallurgically joining a tube to a member
US6907827B2 (en) * 2002-11-14 2005-06-21 Special Devices, Inc. Pyrotechnic initiator having output can with encapsulation material retention feature
US20040222193A1 (en) * 2003-05-06 2004-11-11 Venkatasubramanian Ananthanarayanan Method for resistance welding/brazing a tube to a member
US7253372B2 (en) * 2004-07-07 2007-08-07 Delphi Technologies, Inc. Method for welding heat exchanger tube to tubesheet
US7476824B2 (en) * 2004-07-07 2009-01-13 Delphi Technologies, Inc. Welding apparatus for resistance welding heat exchanger tube to tubesheet
US20060016788A1 (en) * 2004-07-23 2006-01-26 Suhre Ryan J Method for welding employing current
US8100043B1 (en) 2008-03-28 2012-01-24 Reynolds Systems, Inc. Detonator cartridge and methods of use
US8281718B2 (en) * 2009-12-31 2012-10-09 The United States Of America As Represented By The Secretary Of The Navy Explosive foil initiator and method of making
JP5595237B2 (ja) * 2010-11-12 2014-09-24 株式会社ダイセル 点火器組立体
FR2978762B1 (fr) * 2011-08-01 2013-08-02 Nexter Munitions Detonateur de securite
CN103217078B (zh) * 2013-05-14 2015-04-01 中国工程物理研究院化工材料研究所 具有安保功能的冲击片雷管炮筒
US20220258103A1 (en) 2013-07-18 2022-08-18 DynaEnergetics Europe GmbH Detonator positioning device
US9702680B2 (en) 2013-07-18 2017-07-11 Dynaenergetics Gmbh & Co. Kg Perforation gun components and system
US10188990B2 (en) 2014-03-07 2019-01-29 Dynaenergetics Gmbh & Co. Kg Device and method for positioning a detonator within a perforating gun assembly
EP3140503B1 (de) 2014-05-05 2024-04-03 DynaEnergetics GmbH & Co. KG Initiatorkopfanordnung
US10273788B2 (en) 2014-05-23 2019-04-30 Hunting Titan, Inc. Box by pin perforating gun system and methods
WO2015179787A1 (en) 2014-05-23 2015-11-26 Hunting Titan, Inc. Box by pin perforating gun system and methods
CA3070124C (en) 2015-11-12 2022-03-01 Hunting Titan, Inc. Contact plunger cartridge assembly
KR101778168B1 (ko) * 2017-04-13 2017-09-13 국방과학연구소 로켓 모터용 착화기
US11021923B2 (en) 2018-04-27 2021-06-01 DynaEnergetics Europe GmbH Detonation activated wireline release tool
US10458213B1 (en) 2018-07-17 2019-10-29 Dynaenergetics Gmbh & Co. Kg Positioning device for shaped charges in a perforating gun module
US11339614B2 (en) 2020-03-31 2022-05-24 DynaEnergetics Europe GmbH Alignment sub and orienting sub adapter
US11808093B2 (en) 2018-07-17 2023-11-07 DynaEnergetics Europe GmbH Oriented perforating system
USD1034879S1 (en) 2019-02-11 2024-07-09 DynaEnergetics Europe GmbH Gun body
USD1010758S1 (en) 2019-02-11 2024-01-09 DynaEnergetics Europe GmbH Gun body
USD1019709S1 (en) 2019-02-11 2024-03-26 DynaEnergetics Europe GmbH Charge holder
CZ2022302A3 (cs) 2019-12-10 2022-08-24 DynaEnergetics Europe GmbH Sestava orientovatelné prorážecí trysky
WO2021122797A1 (en) 2019-12-17 2021-06-24 DynaEnergetics Europe GmbH Modular perforating gun system
USD1041608S1 (en) 2020-03-20 2024-09-10 DynaEnergetics Europe GmbH Outer connector
US11988049B2 (en) 2020-03-31 2024-05-21 DynaEnergetics Europe GmbH Alignment sub and perforating gun assembly with alignment sub
EP4043828A1 (de) * 2021-02-10 2022-08-17 FN Herstal SA Elektrische zündung eines zünders für feuerwaffe
US11713625B2 (en) 2021-03-03 2023-08-01 DynaEnergetics Europe GmbH Bulkhead
WO2022184732A1 (en) 2021-03-03 2022-09-09 DynaEnergetics Europe GmbH Bulkhead and tandem seal adapter
US11753889B1 (en) 2022-07-13 2023-09-12 DynaEnergetics Europe GmbH Gas driven wireline release tool

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2972951A (en) * 1952-05-06 1961-02-28 Richard H Stresau Electric initiator for fuze
FR2013677A1 (de) * 1968-07-25 1970-04-03 Dynamit Nobel Ag
GB2006402A (en) * 1977-10-20 1979-05-02 Dynamit Nobel Ag Electric firing element
GB2100395A (en) * 1981-06-15 1982-12-22 Secr Defence Pyrotechnic devices
FR2648223A1 (fr) * 1989-06-09 1990-12-14 Thomson Brandt Armements Inflammateur pyrotechnique pour charges militaires ou propulseur ou generateur de gaz

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1419775A (en) * 1972-10-05 1975-12-31 Secr Defence Electrical initiators
FR2438821A1 (fr) * 1978-10-13 1980-05-09 France Etat Dispositif d'allumage a fil chaud de securite
FR2506927B1 (fr) * 1981-05-29 1986-09-26 France Etat Initiateur electro-pyrotechnique a fil chaud ou explosant a structure coaxiale
EP0143071A1 (de) * 1983-11-18 1985-05-29 Fela E. Uhlmann Aktiengesellschaft für gedruckte Schaltungen Verfahren zur Herstellung einer elektrischen Zündvorrichtung, danach hergestellte Zündvorrichtung und deren Verwendung

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2972951A (en) * 1952-05-06 1961-02-28 Richard H Stresau Electric initiator for fuze
FR2013677A1 (de) * 1968-07-25 1970-04-03 Dynamit Nobel Ag
GB2006402A (en) * 1977-10-20 1979-05-02 Dynamit Nobel Ag Electric firing element
GB2100395A (en) * 1981-06-15 1982-12-22 Secr Defence Pyrotechnic devices
FR2648223A1 (fr) * 1989-06-09 1990-12-14 Thomson Brandt Armements Inflammateur pyrotechnique pour charges militaires ou propulseur ou generateur de gaz

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5423261A (en) * 1992-12-01 1995-06-13 Giat Industries Pyrotechnic trigger
EP0600791A1 (de) * 1992-12-01 1994-06-08 GIAT Industries Pyrotechnische Anzünder
FR2698687A1 (fr) * 1992-12-01 1994-06-03 Giat Ind Sa Initiateur pyrotechnique.
EP0651229A3 (de) * 1993-09-01 1995-11-02 Schlumberger Ltd Zündsystem für Bohrlochperforator, wobei dieses Zündsystem einen explosionsfähigen folieumfassenden Detonator hat.
EP0651229A2 (de) * 1993-09-01 1995-05-03 Schlumberger Limited Zündsystem für Bohrlochperforator, wobei dieses Zündsystem einen explosionsfähigen folieumfassenden Detonator hat
FR2711237A1 (fr) * 1993-10-13 1995-04-21 Thomson Brandt Armements Dispositif de mise à feu à haute énergie.
EP0648997A1 (de) * 1993-10-13 1995-04-19 Thomson Brandt Armements Hoch-energetische Zünder
FR2738060A1 (fr) * 1995-08-24 1997-02-28 Univ Auburn Dispositif electro-explosif realise sur substrat
US6363853B1 (en) * 1999-09-17 2002-04-02 Apti, Inc. Electrically initiated distributed igniter
EP1367355A1 (de) * 2002-05-29 2003-12-03 Giat Industries Sicherheitsplasmazündelement
EP1367356A1 (de) * 2002-05-29 2003-12-03 Giat Industries Sicherheitszündelement
FR2840401A1 (fr) * 2002-05-29 2003-12-05 Giat Ind Sa Composant d'amorcage de securite a torche a plasma
FR2840400A1 (fr) * 2002-05-29 2003-12-05 Giat Ind Sa Composant d'amorcage de securite

Also Published As

Publication number Publication date
EP0488863B1 (de) 1995-09-13
US5204491A (en) 1993-04-20
FR2669725A1 (fr) 1992-05-29
CA2056170A1 (fr) 1992-05-28
DE69113001D1 (de) 1995-10-19
FR2669725B1 (fr) 1994-10-07
DE69113001T2 (de) 1996-02-01

Similar Documents

Publication Publication Date Title
EP0488863B1 (de) Pyrotechnischer Detonator mit Koaxialverbindungen
EP0600791B1 (de) Pyrotechnische elektrische Anzünder
EP2504852B1 (de) Elektroschalter mit gleitelement zur herstellung eines kurzschlusses oder wahlschalters
FR2557689A1 (fr) Initiateur pyrotechnique utilisant une prise coaxiale
EP0292383A1 (de) Vorrichtung zum photopyrotechnischen Zünden und photopyrotechnische Kette mit einer solchen Vorrichtung
EP1172628B1 (de) Elektro-pyrotechnischer Anzünder mit gesicherter Hochenergiezündung
EP0499500B1 (de) Behälter, vorgesehen mit elektrischen Verbindungsmitteln
EP0357514B1 (de) Munitionsschutzhülle mit Mitteln, die deren Zerlegen erlauben
EP1138923B1 (de) Mehrstufenraketenmotor mit einer Interstufen-Schutzvorrichtung
FR2796715A1 (fr) Initiateur pyrotechnique et procede de montage d'un tel initiateur
EP1672308B1 (de) Zündvorrichtung für eine explosive Ladung oder eine pyrotechnische Zusammensetzung
EP0526315A1 (de) Pyrotechnisch getriebener elektrischer Schalter
EP0296962A1 (de) Anzünder für einen pyrotechnischen Generator
EP0310517B1 (de) Geschossboden für eine mit einem elektrischen Zünder versehene Grosskalibermunition
FR2669724A1 (fr) Detonateur laser a effet de projection de plaque.
FR2648223A1 (fr) Inflammateur pyrotechnique pour charges militaires ou propulseur ou generateur de gaz
FR2824632A1 (fr) Dispositif de commande sequentielle d'elements pyrotechniques integres dans un module electronique
FR2692346A1 (fr) Amorce optique de générateur pyrotechnique à basse énergie.
EP0648997B1 (de) Hoch-energetische Zünder
EP4193118A1 (de) Vorrichtung zum schneiden einer rohrförmigen struktur
FR2817955A1 (fr) Dispositif d'amorcage pour charge explosive et charge formee incorporant un tel dispositif d'amorcage
FR2783915A1 (fr) Transducteur ultrasonore
CH414403A (fr) Fusée électrique pour projectile
FR2690239A1 (fr) Amorce optique de générateur pyrotechnique à plasma.
FR2857738A1 (fr) Composant pyrotechnique et procede de fabrication et de montage d'un tel composant

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): CH DE GB IT LI SE

17P Request for examination filed

Effective date: 19921127

17Q First examination report despatched

Effective date: 19940124

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): CH DE GB IT LI SE

REF Corresponds to:

Ref document number: 69113001

Country of ref document: DE

Date of ref document: 19951019

ITF It: translation for a ep patent filed
GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19951120

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20011019

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20011022

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20011029

Year of fee payment: 11

Ref country code: CH

Payment date: 20011029

Year of fee payment: 11

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20021122

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20021123

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20021130

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20021130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030603

EUG Se: european patent has lapsed
GBPC Gb: european patent ceased through non-payment of renewal fee
REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20051122