US3134329A - Exploding bridgewire coating - Google Patents

Exploding bridgewire coating Download PDF

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Publication number
US3134329A
US3134329A US193729A US19372962A US3134329A US 3134329 A US3134329 A US 3134329A US 193729 A US193729 A US 193729A US 19372962 A US19372962 A US 19372962A US 3134329 A US3134329 A US 3134329A
Authority
US
United States
Prior art keywords
bridgewire
coating
silicate
water
squib
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.)
Expired - Lifetime
Application number
US193729A
Other languages
English (en)
Inventor
Zeman Samuel
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.)
ATK Launch Systems LLC
Original Assignee
Thiokol Corp
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
Priority to BE632157D priority Critical patent/BE632157A/xx
Priority to NL133269D priority patent/NL133269C/xx
Priority to NL292575D priority patent/NL292575A/xx
Priority to US193729A priority patent/US3134329A/en
Application filed by Thiokol Corp filed Critical Thiokol Corp
Priority to GB18174/62A priority patent/GB972664A/en
Priority to FR934275A priority patent/FR1364664A/fr
Priority to DET23979A priority patent/DE1235205B/de
Priority to CH590663A priority patent/CH439051A/de
Priority to SE5219/63A priority patent/SE321431B/xx
Application granted granted Critical
Publication of US3134329A publication Critical patent/US3134329A/en
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
    • F42B3/00—Blasting cartridges, i.e. case and explosive
    • F42B3/10—Initiators therefor
    • F42B3/103—Mounting initiator heads in initiators; Sealing-plugs
    • 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
    • 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
    • F42B3/125—Bridge initiators characterised by the configuration of the bridge initiator case

Definitions

  • This invention relates to electrically actuated deflagrating squibs, and more particularly to electrically actuated deflagrating squibs of the exploding bridgewire type. Deflagrating squibs of the exploding bridgewire type have found increasing use, particularly as a means of initiating the ignition of solid-propellant rocket charges,
  • the bridgewire may be heated to incandescence or to its fusion point, accidentally actuating the squib. Again, the bridgewire -may be'subjected to prolonged electrical heating and, although not heated to incandescence, may raise the temperature of the pyrotechnic charge to the point at which it. will undergo, auto-ignition.
  • Structural and/ or chemical alterations may be made to overcome such problems, but the more resistant to accidental actuation an EBW squib is made, the more resistant to intentional actuation 'it may become.
  • the delay time, or time to full ignition of the pyrotechnic charge following actuation may be seriously affected. In extreme instances, a squib may be made so safe that actuation is unpredictable or problematical.
  • Such a squib comprises a body 1, usually of metal, with a pair of electrodes 2 for contact with a mating connector (not shown) and electrically insulated from each other and from the squib body 1 by insulator 3, composed of glass,
  • the diaphragm 7 may be coated on the side opposite the bridgewire 5 with a very fast-burning pyrotechnic composition 10, composed of any such as are knownin the art.
  • a main pyrotechnic charge 11 which may be any of those common in the art or composed as described in copending application Serial Number 60,134, filed October 3, 1960, is placed above the diaphragm'7.
  • a cl0- sure 12 commonly of metal foil, retains and seals the main charge 11.
  • compositions of the present invention which are applied as a coating '6 to the bridgewire 5, are composed of finely divided particles, 44 microns or smaller in size, of a secondary explosive, suchjas pentaerythritol tetranitrate (PETN), bound with a water soluble inorganic 'alkali silicate, such as sodium silicate.
  • a secondary explosive suchjas pentaerythritol tetranitrate (PETN)
  • PTN pentaerythritol tetranitrate
  • a water soluble inorganic 'alkali silicate such as sodium silicate.
  • the silicate com- A preferred composition which has been found suitable for. use in EBW squibs suchas that shown in the drawing is prepared by mixing 30 parts by weight of purified PETN, finer than 325 mesh, With 70 parts by weight of a solution of sodium silicate in water.
  • the silicate solution for this example has a hydrometer value of 40' degrees B-
  • the ratio of silicate binder to secondary explosive may be adjusted in a manner that gives optimum balance between the mechanical properties needed for adhesion and strength, and the chemical properties needed for rapid reaction.
  • compositions ranging from 40 to 70% secondary explosive bound with 30 to 60% silicate binder, on a dry weight basis may-be employed.
  • a number of secondary explosives other than PETN have been found suitable for use in the compositions of the present invention.
  • Such materials as, for example, cyclotrimethylenetrinitramine (RDX) may be employed.
  • a preferred silicate binder is composed of sodium silicate (water glass) which has a formula designation of Na O-(SiO where x is approximately 3. Alternate names and formulae for the primary ingredient of the binder are sodium tetrasilicate, Na Si O or water soluble silicates, such as sodium metalsilicate, Na SiO or potassium disilicate, K Si O I
  • the coating compositions of the present invention per-' 7 form several functions. They act as both electrical and thermal insulators, as heat sinks, and as radiators to prevent localized overheating due to accidental passage of electrical energy through the bridgewire. In addition, when the bridgewire is exploded upon deliberate actuation, the coating contributes to the explosive energy released, rupturing the diaphragm and igniting the pyrotechnic charges.
  • Uncoated bridgewires when used in a squib such as is shown in the drawing, frequently 'do not release sufficient energy to rupture the diaphragm and ignite the pyrotechnic charges. If the thickness of the diaphragm is reduced, or if the diaphragm is spaced in closer proximity to the bridgewire, the squib may he accidentally actuated by passage of suflicient electrical energy through the bridgewire to heat it to incandescence or to fuse it. Accidental actuation is even more likely in squibs in which a diaphragm is not used. Exploding bridgewire squibs, employing bridgewires coated with compositions it should not be limited thereto, for obvious modifications will occur to those skilled in the art without departing from the spirit of the invention or the scope of the subjoined claims.
  • silicate binder consists of at least one silicate selected from the class consisting of water-soluble sodium silicate compounds.
  • silicate binder consists of a mixture of silicates selected from the class consisting of water-soluble sodium silicate compounds.
  • silicate binder consists of at least one silicate selected from the class consisting of water-soluble potassium silicate compounds.
  • silicate binder consists of a mixture of silicates selected from the class consisting of water-soluble potassium silicate compounds.
  • silicate binder consists of a mixture of silicates selected from the class consisting of water-soluble sodium and potassiumsilicate compounds.
  • A'coating for an exploding bridgewire in a defilagrating squib said coating consisting of a finely divided secondary explosive in awater-soluble inorganic silicate binder.
  • silicate binder consists of at least one silicate selected from the .class consisting of'water-soluble sodium silicate compounds.
  • silicate binder consists of a mixture of silicates selected from the class consisting of water-soluble sodium silicate compounds.
  • silicate binder consists of at least one silicate selected from the class consisting of Water-soluble potassium silicate compounds.
  • silicate binder consists of a mixture of silicates selected from the class consisting of water-soluble potassium silicate compounds.
  • silicate binder consists of a mixture of silicates selected from the class consisting of water-soluble sodium and potassium silicate compounds.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Silicates, Zeolites, And Molecular Sieves (AREA)
  • Air Bags (AREA)
  • Paints Or Removers (AREA)
US193729A 1962-05-10 1962-05-10 Exploding bridgewire coating Expired - Lifetime US3134329A (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
BE632157D BE632157A (es) 1962-05-10
NL133269D NL133269C (es) 1962-05-10
NL292575D NL292575A (es) 1962-05-10
US193729A US3134329A (en) 1962-05-10 1962-05-10 Exploding bridgewire coating
GB18174/62A GB972664A (en) 1962-05-10 1963-05-08 Deflagrating squib
FR934275A FR1364664A (fr) 1962-05-10 1963-05-09 Détonateur déflagrant
DET23979A DE1235205B (de) 1962-05-10 1963-05-10 Elektrischer Brueckenzuender
CH590663A CH439051A (de) 1962-05-10 1963-05-10 Aufflammende Zündladung
SE5219/63A SE321431B (es) 1962-05-10 1963-05-10

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US193729A US3134329A (en) 1962-05-10 1962-05-10 Exploding bridgewire coating

Publications (1)

Publication Number Publication Date
US3134329A true US3134329A (en) 1964-05-26

Family

ID=22714790

Family Applications (1)

Application Number Title Priority Date Filing Date
US193729A Expired - Lifetime US3134329A (en) 1962-05-10 1962-05-10 Exploding bridgewire coating

Country Status (7)

Country Link
US (1) US3134329A (es)
BE (1) BE632157A (es)
CH (1) CH439051A (es)
DE (1) DE1235205B (es)
GB (1) GB972664A (es)
NL (2) NL133269C (es)
SE (1) SE321431B (es)

Cited By (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3272127A (en) * 1963-08-05 1966-09-13 Robert E Betts Igniter squib
DE1258771B (de) * 1965-03-09 1968-01-11 Montage Technik Anstalt F Verfahren zum Zuenden von Treibladungen fuer pulverkraftbetriebene Bolzensetzwerkzeuge und Treibladung hierfuer
US3791298A (en) * 1971-01-18 1974-02-12 France Etat Electrical switching device employing a vaporizable conductive element
US3831523A (en) * 1967-01-04 1974-08-27 Us Army Electroexplosive device
FR2307248A1 (fr) * 1973-07-12 1976-11-05 Poudres & Explosifs Ste Nale Dispositif allumeur directif
US4686903A (en) * 1984-05-21 1987-08-18 Ems-Inventia AG Method of manufacturing a pole body for an electric fuse, pole body for an electric fuse and method of using the pole body
US4715280A (en) * 1984-05-24 1987-12-29 Ems-Inventa Ag Pole body for an electric fuze, method of manufacturing and method of using the pole body
DE3735405A1 (de) * 1987-10-20 1989-05-11 Dynamit Nobel Ag Anzuendpille
US4831932A (en) * 1987-08-17 1989-05-23 Honeywell Inc. Detonator
US4938137A (en) * 1989-06-05 1990-07-03 Guay Roland H Exploding bridgewire driven multiple flyer detonator
US4989515A (en) * 1989-08-08 1991-02-05 The United States Of America As Represented By The United States Department Of Energy Ignitor with stable low-energy thermite igniting system
US5140906A (en) * 1991-11-05 1992-08-25 Ici Americas, Inc. Airbag igniter having double glass seal
US5404263A (en) * 1992-08-27 1995-04-04 Oea, Inc. All-glass header assembly used in an inflator system
US5691499A (en) * 1996-08-07 1997-11-25 Morton International, Inc. Bridgewire ladder initiator
US5709724A (en) * 1994-08-04 1998-01-20 Coors Ceramics Company Process for fabricating a hermetic glass-to-metal seal
US5939660A (en) * 1997-03-12 1999-08-17 Trw Inc. Inflator for an inflatable vehicle occupant protection device
US5988069A (en) * 1996-11-12 1999-11-23 Universal Propulsion Company, Inc. Electric initiator having a sealing material forming a ceramic to metal seal
FR2781878A1 (fr) * 1998-07-31 2000-02-04 Giat Ind Sa Procede de mise en oeuvre d'une substance pyrotechnique et initiateur pyrotechnique obtenu avec un tel procede
US6230624B1 (en) 1999-08-13 2001-05-15 Trw Inc. Igniter having a hot melt ignition droplet
US6274252B1 (en) * 1994-08-04 2001-08-14 Coors Ceramics Company Hermetic glass-to-metal seal useful in headers for airbags
US6422145B1 (en) 1997-11-06 2002-07-23 Rocktek Ltd. Controlled electromagnetic induction detonation system for initiation of a detonatable material
EP1377791A1 (de) * 2001-03-31 2004-01-07 Robert Bosch Gmbh Brückenzünder
US20040007911A1 (en) * 2002-02-20 2004-01-15 Smith David Carnegie Apparatus and method for fracturing a hard material
US6679175B2 (en) 2001-07-19 2004-01-20 Rocktek Limited Cartridge and method for small charge breaking
US6708619B2 (en) 2000-02-29 2004-03-23 Rocktek Limited Cartridge shell and cartridge for blast holes and method of use
EP1455160A1 (de) * 2003-03-03 2004-09-08 Schott Glas Metall-Fixiermaterial-Durchführung und Verfahren zur Fertigung eines Grundkörpers einer Metall-Fixiermaterial-Durchführung
EP1457758A1 (de) * 2003-03-08 2004-09-15 Dynamit Nobel AIS GmbH Automotive Ignition Systems Glasdurchführung für einen pyrotechnischen Anzünder
EP1813906A1 (de) 2006-01-27 2007-08-01 Schott AG Metall-Fixiermaterial-Durchführung und Verwendung einer derartigen Durchführung sowie Airbag und Gurtspanner mit einer Zündeinrichtung
EP1808667A3 (de) * 2003-03-03 2007-08-01 Schott AG Metall-Fixiermaterial-Durchführung und Verfahren zur Fertigung eines Grundkörpers einer Metall-Fixiermaterial-Durchführung
WO2008064858A1 (de) 2006-11-28 2008-06-05 Schott Ag Zündvorrichtung für eine pyrotechnische schutzvorrichtung
US20080250963A1 (en) * 2003-03-03 2008-10-16 Schott Ag Metal fixing material bushing and method for producing a base plate of a metal fixing material bushing
US20130239834A1 (en) * 2012-03-14 2013-09-19 A & O Technologie Gmbh Igniter base for pyrotechnic devices
US8733250B2 (en) 2006-01-27 2014-05-27 Schott Ag Metal-sealing material-feedthrough and utilization of the metal-sealing material feedthrough with an airbag, a belt tensioning device, and an ignition device
EP2743632A1 (en) * 2012-12-11 2014-06-18 Nederlandse Organisatie voor toegepast -natuurwetenschappelijk onderzoek TNO Miniature electro-pyrotechnic igniter, and ignition head for the same
US9423218B2 (en) 2010-09-17 2016-08-23 Schott Ag Method for producing a ring-shaped or plate-like element
US20180299235A1 (en) * 2017-04-13 2018-10-18 Agency For Defense Development Initiator for rocket motor
US10684102B2 (en) 2010-09-17 2020-06-16 Schott Ag Method for producing a ring-shaped or plate-like element

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2756030C1 (ru) * 2021-01-11 2021-09-24 Российская Федерация, от имени которой выступает Государственная корпорация по атомной энергии "Росатом" (Госкорпорация "Росатом") ИНДУКЦИОННЫЙ ДЕТОНАТОР (варианты)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2926566A (en) * 1956-11-30 1960-03-01 Walter W Atkins Device for accelerating the ignition of the propellant for a projectile
US2982639A (en) * 1953-01-27 1961-05-02 William A Gey Explosive compositions
US2992087A (en) * 1959-11-03 1961-07-11 Du Pont New explosive
US3040660A (en) * 1944-11-08 1962-06-26 Lawrence H Johnston Electric initiator with exploding bridge wire
US3048507A (en) * 1956-12-31 1962-08-07 Hercules Powder Co Ltd Matchhead igniters and compositions and method for their manufacture
US3054258A (en) * 1957-10-28 1962-09-18 Standard Oil Co Temperature rise retardation of surfaces exposed to heat
US3059576A (en) * 1958-09-26 1962-10-23 Conax Corp Electrically fired detonator

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3040660A (en) * 1944-11-08 1962-06-26 Lawrence H Johnston Electric initiator with exploding bridge wire
US2982639A (en) * 1953-01-27 1961-05-02 William A Gey Explosive compositions
US2926566A (en) * 1956-11-30 1960-03-01 Walter W Atkins Device for accelerating the ignition of the propellant for a projectile
US3048507A (en) * 1956-12-31 1962-08-07 Hercules Powder Co Ltd Matchhead igniters and compositions and method for their manufacture
US3054258A (en) * 1957-10-28 1962-09-18 Standard Oil Co Temperature rise retardation of surfaces exposed to heat
US3059576A (en) * 1958-09-26 1962-10-23 Conax Corp Electrically fired detonator
US2992087A (en) * 1959-11-03 1961-07-11 Du Pont New explosive

Cited By (62)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3272127A (en) * 1963-08-05 1966-09-13 Robert E Betts Igniter squib
DE1258771B (de) * 1965-03-09 1968-01-11 Montage Technik Anstalt F Verfahren zum Zuenden von Treibladungen fuer pulverkraftbetriebene Bolzensetzwerkzeuge und Treibladung hierfuer
US3831523A (en) * 1967-01-04 1974-08-27 Us Army Electroexplosive device
US3791298A (en) * 1971-01-18 1974-02-12 France Etat Electrical switching device employing a vaporizable conductive element
FR2307248A1 (fr) * 1973-07-12 1976-11-05 Poudres & Explosifs Ste Nale Dispositif allumeur directif
US4686903A (en) * 1984-05-21 1987-08-18 Ems-Inventia AG Method of manufacturing a pole body for an electric fuse, pole body for an electric fuse and method of using the pole body
US4715280A (en) * 1984-05-24 1987-12-29 Ems-Inventa Ag Pole body for an electric fuze, method of manufacturing and method of using the pole body
US4831932A (en) * 1987-08-17 1989-05-23 Honeywell Inc. Detonator
US4878430A (en) * 1987-10-20 1989-11-07 Dynamit Nobel Aktiengesellschaft Detonator pellet
DE3735405A1 (de) * 1987-10-20 1989-05-11 Dynamit Nobel Ag Anzuendpille
DE3735405C2 (de) * 1987-10-20 1998-07-30 Dynamit Nobel Ag Anzündpille
US4938137A (en) * 1989-06-05 1990-07-03 Guay Roland H Exploding bridgewire driven multiple flyer detonator
US4989515A (en) * 1989-08-08 1991-02-05 The United States Of America As Represented By The United States Department Of Energy Ignitor with stable low-energy thermite igniting system
US5140906A (en) * 1991-11-05 1992-08-25 Ici Americas, Inc. Airbag igniter having double glass seal
US5404263A (en) * 1992-08-27 1995-04-04 Oea, Inc. All-glass header assembly used in an inflator system
US6274252B1 (en) * 1994-08-04 2001-08-14 Coors Ceramics Company Hermetic glass-to-metal seal useful in headers for airbags
US5709724A (en) * 1994-08-04 1998-01-20 Coors Ceramics Company Process for fabricating a hermetic glass-to-metal seal
US5691499A (en) * 1996-08-07 1997-11-25 Morton International, Inc. Bridgewire ladder initiator
US5988069A (en) * 1996-11-12 1999-11-23 Universal Propulsion Company, Inc. Electric initiator having a sealing material forming a ceramic to metal seal
US5939660A (en) * 1997-03-12 1999-08-17 Trw Inc. Inflator for an inflatable vehicle occupant protection device
US6422145B1 (en) 1997-11-06 2002-07-23 Rocktek Ltd. Controlled electromagnetic induction detonation system for initiation of a detonatable material
FR2781878A1 (fr) * 1998-07-31 2000-02-04 Giat Ind Sa Procede de mise en oeuvre d'une substance pyrotechnique et initiateur pyrotechnique obtenu avec un tel procede
WO2000008412A1 (fr) * 1998-07-31 2000-02-17 Giat Industries Procede de mise en oeuvre d'une substance pyrotechnique et initiateur pyrotechnique obtenu avec un tel procede
US6230624B1 (en) 1999-08-13 2001-05-15 Trw Inc. Igniter having a hot melt ignition droplet
US6708619B2 (en) 2000-02-29 2004-03-23 Rocktek Limited Cartridge shell and cartridge for blast holes and method of use
EP1377791A1 (de) * 2001-03-31 2004-01-07 Robert Bosch Gmbh Brückenzünder
US6679175B2 (en) 2001-07-19 2004-01-20 Rocktek Limited Cartridge and method for small charge breaking
US20040007911A1 (en) * 2002-02-20 2004-01-15 Smith David Carnegie Apparatus and method for fracturing a hard material
US20060222881A1 (en) * 2003-03-03 2006-10-05 Schott Ag Metal fixing material bushing and method for producing a base plate of a metal fixing material bushing
CN100393555C (zh) * 2003-03-03 2008-06-11 肖特股份公司 金属-固定材料套管和制造该套管的基体的方法
US20040216631A1 (en) * 2003-03-03 2004-11-04 Thomas Fink Metal fixing material bushing and method for producing a base plate of a metal fixing material bushing
EP1455160A1 (de) * 2003-03-03 2004-09-08 Schott Glas Metall-Fixiermaterial-Durchführung und Verfahren zur Fertigung eines Grundkörpers einer Metall-Fixiermaterial-Durchführung
US8327765B2 (en) 2003-03-03 2012-12-11 Schott Ag Metal fixing material bushing and method for producing a base plate of a metal fixing material bushing
EP1808667A3 (de) * 2003-03-03 2007-08-01 Schott AG Metall-Fixiermaterial-Durchführung und Verfahren zur Fertigung eines Grundkörpers einer Metall-Fixiermaterial-Durchführung
US8276514B2 (en) 2003-03-03 2012-10-02 Schott Ag Metal fixing material bushing and method for producing a base plate of a metal fixing material bushing
US20100229616A1 (en) * 2003-03-03 2010-09-16 Schott Ag Metal fixing material bushing and method for producing a base plate of a metal fixing material bushing
JP2010133698A (ja) * 2003-03-03 2010-06-17 Schott Ag 金属固定材ブッシュ及び金属固定材ブッシュの心材を製造する方法
EP1808667B1 (de) 2003-03-03 2016-06-08 Schott AG Metall-Fixiermaterial-Durchführung und Verfahren zur Fertigung eines Grundkörpers einer Metall-Fixiermaterial-Durchführung
US20080250963A1 (en) * 2003-03-03 2008-10-16 Schott Ag Metal fixing material bushing and method for producing a base plate of a metal fixing material bushing
EP1457758A1 (de) * 2003-03-08 2004-09-15 Dynamit Nobel AIS GmbH Automotive Ignition Systems Glasdurchführung für einen pyrotechnischen Anzünder
US8733250B2 (en) 2006-01-27 2014-05-27 Schott Ag Metal-sealing material-feedthrough and utilization of the metal-sealing material feedthrough with an airbag, a belt tensioning device, and an ignition device
EP2187162A2 (de) 2006-01-27 2010-05-19 Schott AG Metall-Fixiermaterial-Durchführung und Verwendung einer derartigen Durchführung sowie Airbag und Gurtspanner mit einer Zündeinrichtung
EP3104114A1 (de) 2006-01-27 2016-12-14 Schott Ag Metall-fixiermaterial-durchführung und verfahren zur fertigung eines grundkörpers einer metall-fixiermaterial-durchführung
US20070187934A1 (en) * 2006-01-27 2007-08-16 Thomas Fink Metal-sealing material-feedthrough and utilization of the metal-sealing material feedthrough with an airbag, a belt tensioning device, and an ignition device
EP2270417A2 (de) 2006-01-27 2011-01-05 Schott Ag Metall-Fixiermaterial-Durchführung und Verwendung einer derartigen Durchführung sowie Airbag und Gurtspanner mit einer Zündeinrichtung
US8127681B2 (en) 2006-01-27 2012-03-06 Schott Ag Metal-sealing material-feedthrough and utilization of the metal-sealing material feedthrough with an airbag, a belt tensioning device, and an ignition device
DE102006004036A1 (de) * 2006-01-27 2007-08-09 Schott Ag Metall-Fixiermaterial-Durchführung und Verwendung einer derartigen Durchführung sowie Airbag und Gurtspanner mit einer Zündeinrichtung
EP1813906A1 (de) 2006-01-27 2007-08-01 Schott AG Metall-Fixiermaterial-Durchführung und Verwendung einer derartigen Durchführung sowie Airbag und Gurtspanner mit einer Zündeinrichtung
US8205554B2 (en) 2006-11-28 2012-06-26 Schott Ag Firing apparatus for a pyrotechnic protection apparatus
US20100064923A1 (en) * 2006-11-28 2010-03-18 Schott Ag Firing apparatus for a pyrotechnic protection apparatus
WO2008064858A1 (de) 2006-11-28 2008-06-05 Schott Ag Zündvorrichtung für eine pyrotechnische schutzvorrichtung
DE112007002750B4 (de) * 2006-11-28 2014-11-20 Schott Ag Zündvorrichtung für eine pyrotechnische Schutzvorrichtung
US9423218B2 (en) 2010-09-17 2016-08-23 Schott Ag Method for producing a ring-shaped or plate-like element
US9651345B2 (en) 2010-09-17 2017-05-16 Schott Ag Method for producing a ring-shaped or plate-like element
US10684102B2 (en) 2010-09-17 2020-06-16 Schott Ag Method for producing a ring-shaped or plate-like element
US8967047B2 (en) * 2012-03-14 2015-03-03 A & O Technologie Gmbh Igniter base for pyrotechnic devices
US20130239834A1 (en) * 2012-03-14 2013-09-19 A & O Technologie Gmbh Igniter base for pyrotechnic devices
WO2014092565A1 (en) * 2012-12-11 2014-06-19 Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek Tno Miniature electro-pyrotechnic igniter, and ignition head for the same
US20150308805A1 (en) * 2012-12-11 2015-10-29 Nederlandse Organisatie Voor Toegepast- Natuurwetenschappelijk Onderzoek Tno Miniature electro-pyrotechnic igniter, and ignition head for the same
EP2743632A1 (en) * 2012-12-11 2014-06-18 Nederlandse Organisatie voor toegepast -natuurwetenschappelijk onderzoek TNO Miniature electro-pyrotechnic igniter, and ignition head for the same
US20180299235A1 (en) * 2017-04-13 2018-10-18 Agency For Defense Development Initiator for rocket motor
US10634467B2 (en) * 2017-04-13 2020-04-28 Agency For Defense Development Initiator for rocket motor

Also Published As

Publication number Publication date
BE632157A (es)
CH439051A (de) 1967-06-30
GB972664A (en) 1964-10-14
NL133269C (es)
NL292575A (es)
SE321431B (es) 1970-03-02
DE1235205B (de) 1967-02-23

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