US3134329A - Exploding bridgewire coating - Google Patents

Exploding bridgewire coating Download PDF

Info

Publication number: US3134329A
Authority: US; United States
Prior art keywords: bridgewire; coating; silicate; water; squib
Prior art date: 1962-05-10
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.)

1962-05-10

Filing date

1962-05-10

Publication date

1964-05-26

Priority to NL133269D priority Critical patent/NL133269C/xx

Priority to NL292575D priority patent/NL292575A/xx

Priority to BE632157D priority patent/BE632157A/xx

1962-05-10 Priority to US193729A priority patent/US3134329A/en

1962-05-10 Application filed by Thiokol Corp filed Critical Thiokol Corp

1963-05-08 Priority to GB18174/62A priority patent/GB972664A/en

1963-05-09 Priority to FR934275A priority patent/FR1364664A/fr

1963-05-10 Priority to CH590663A priority patent/CH439051A/de

1963-05-10 Priority to SE5219/63A priority patent/SE321431B/xx

1963-05-10 Priority to DET23979A priority patent/DE1235205B/de

1964-05-26 Application granted granted Critical

1964-05-26 Publication of US3134329A publication Critical patent/US3134329A/en

1981-05-26 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

239000011248 coating agent Substances 0.000 title claims description 20
238000000576 coating method Methods 0.000 title claims description 20
239000011230 binding agent Substances 0.000 claims description 17
239000002360 explosive Substances 0.000 claims description 14
229910052909 inorganic silicate Inorganic materials 0.000 claims description 3
BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 19
239000000203 mixture Substances 0.000 description 16
NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 8
TZRXHJWUDPFEEY-UHFFFAOYSA-N Pentaerythritol Tetranitrate Chemical compound [O-][N+](=O)OCC(CO[N+]([O-])=O)(CO[N+]([O-])=O)CO[N+]([O-])=O TZRXHJWUDPFEEY-UHFFFAOYSA-N 0.000 description 7
239000000026 Pentaerythritol tetranitrate Substances 0.000 description 7
229960004321 pentaerithrityl tetranitrate Drugs 0.000 description 7
150000004760 silicates Chemical class 0.000 description 7
NNHHDJVEYQHLHG-UHFFFAOYSA-N potassium silicate Chemical class [K+].[K+].[O-][Si]([O-])=O NNHHDJVEYQHLHG-UHFFFAOYSA-N 0.000 description 6
239000004115 Sodium Silicate Substances 0.000 description 5
229910052911 sodium silicate Inorganic materials 0.000 description 5
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 4
229940032158 sodium silicate Drugs 0.000 description 4
235000019794 sodium silicate Nutrition 0.000 description 4
XTFIVUDBNACUBN-UHFFFAOYSA-N 1,3,5-trinitro-1,3,5-triazinane Chemical compound [O-][N+](=O)N1CN([N+]([O-])=O)CN([N+]([O-])=O)C1 XTFIVUDBNACUBN-UHFFFAOYSA-N 0.000 description 3
239000012212 insulator Substances 0.000 description 3
229910052751 metal Inorganic materials 0.000 description 3
239000002184 metal Substances 0.000 description 3
239000002245 particle Substances 0.000 description 3
239000011734 sodium Substances 0.000 description 3
239000000126 substance Substances 0.000 description 3
229910018557 Si O Inorganic materials 0.000 description 2
238000004880 explosion Methods 0.000 description 2
239000011888 foil Substances 0.000 description 2
229910000510 noble metal Inorganic materials 0.000 description 2
229910052708 sodium Inorganic materials 0.000 description 2
125000006850 spacer group Chemical group 0.000 description 2
DMYOHQBLOZMDLP-UHFFFAOYSA-N 1-[2-(2-hydroxy-3-piperidin-1-ylpropoxy)phenyl]-3-phenylpropan-1-one Chemical compound C1CCCCN1CC(O)COC1=CC=CC=C1C(=O)CCC1=CC=CC=C1 DMYOHQBLOZMDLP-UHFFFAOYSA-N 0.000 description 1
229920001079 Thiokol (polymer) Polymers 0.000 description 1
229910052910 alkali metal silicate Inorganic materials 0.000 description 1
229910045601 alloy Inorganic materials 0.000 description 1
239000000956 alloy Substances 0.000 description 1
230000004075 alteration Effects 0.000 description 1
239000008199 coating composition Substances 0.000 description 1
230000000694 effects Effects 0.000 description 1
239000012777 electrically insulating material Substances 0.000 description 1
230000004927 fusion Effects 0.000 description 1
239000011521 glass Substances 0.000 description 1
238000010438 heat treatment Methods 0.000 description 1
VXJCGWRIPCFWIB-UHFFFAOYSA-N hexadecasodium tetrasilicate Chemical compound [Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-] VXJCGWRIPCFWIB-UHFFFAOYSA-N 0.000 description 1
UFFNHUYHCDHKHK-UHFFFAOYSA-N hexapotassium trioxido(trioxidosilyloxy)silane Chemical compound [K+].[K+].[K+].[K+].[K+].[K+].[O-][Si]([O-])([O-])O[Si]([O-])([O-])[O-] UFFNHUYHCDHKHK-UHFFFAOYSA-N 0.000 description 1
239000004615 ingredient Substances 0.000 description 1
230000000977 initiatory effect Effects 0.000 description 1
239000000463 material Substances 0.000 description 1
230000013011 mating Effects 0.000 description 1
229910052914 metal silicate Inorganic materials 0.000 description 1
238000012986 modification Methods 0.000 description 1
230000004048 modification Effects 0.000 description 1
239000000615 nonconductor Substances 0.000 description 1
238000013021 overheating Methods 0.000 description 1
239000004033 plastic Substances 0.000 description 1
235000019353 potassium silicate Nutrition 0.000 description 1
230000002035 prolonged effect Effects 0.000 description 1
230000035939 shock Effects 0.000 description 1
-1 sodium metalsilicate Chemical class 0.000 description 1
239000004449 solid propellant Substances 0.000 description 1

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
- F42B3/103—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
NL133269D NL133269C (fr)	1962-05-10
NL292575D NL292575A (fr)	1962-05-10
BE632157D BE632157A (fr)	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
CH590663A CH439051A (de)	1962-05-10	1963-05-10	Aufflammende Zündladung
SE5219/63A SE321431B (fr)	1962-05-10	1963-05-10
DET23979A DE1235205B (de)	1962-05-10	1963-05-10	Elektrischer Brueckenzuender

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 (fr)
BE (1)	BE632157A (fr)
CH (1)	CH439051A (fr)
DE (1)	DE1235205B (fr)
GB (1)	GB972664A (fr)
NL (2)	NL292575A (fr)
SE (1)	SE321431B (fr)

Cited By (38)

* 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 (fr) *	2001-03-31	2004-01-07	Robert Bosch Gmbh	Amorce a filament
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 (fr) *	2003-03-03	2004-09-08	Schott Glas	Traversée métal-matériau de fixation et procédé de fabrication d'une tête d'initiateur avec traversée métal-matériau de fixation
EP1457758A1 (fr) *	2003-03-08	2004-09-15	Dynamit Nobel AIS GmbH Automotive Ignition Systems	Traversée en verre pour initiateur pyrotechnique
EP1813906A1 (fr)	2006-01-27	2007-08-01	Schott AG	Traversée métal - matériau de fixation et utilisation de celle-ci ainsi qu'airbag et tensionneur de ceinture avec initiateur
EP1808667A3 (fr) *	2003-03-03	2007-08-01	Schott AG	Réalisation de matériau de fixation en métal et procédé de fabrication d'un corps de base d'une réalisation de matériau de fixation en métal
WO2008064858A1 (fr)	2006-11-28	2008-06-05	Schott Ag	Dispositif d'allumage pour dispositif pyrotechnique de protection
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 (fr) *	2012-12-11	2014-06-18	Nederlandse Organisatie voor toegepast -natuurwetenschappelijk onderzoek TNO	Allumeur électropyrotechnique miniature et tête d'allumage pour celui-ci
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
WO2025050138A1 (fr) *	2023-08-22	2025-03-06	Cobra Firing Systems	Allumeur électronique intégré pour feux d'artifice

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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)

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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

0
- BE BE632157D patent/BE632157A/xx unknown
- NL NL133269D patent/NL133269C/xx active
- NL NL292575D patent/NL292575A/xx unknown
1962
- 1962-05-10 US US193729A patent/US3134329A/en not_active Expired - Lifetime
1963
- 1963-05-08 GB GB18174/62A patent/GB972664A/en not_active Expired
- 1963-05-10 DE DET23979A patent/DE1235205B/de active Pending
- 1963-05-10 SE SE5219/63A patent/SE321431B/xx unknown
- 1963-05-10 CH CH590663A patent/CH439051A/de unknown

Patent Citations (7)

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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 (63)

* 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
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Also Published As

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

Publication	Publication Date	Title
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RU2170224C2 (ru)	2001-07-10	Пиротехнический заряд для детонаторов
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US3062147A (en)	1962-11-06	Igniter for solid propellant grains
US2717204A (en)	1955-09-06	Blasting initiator composition
GB2176178A (en)	1986-12-17	Liquid-disabled blasting cap and ignition composition useful therein
US3062143A (en)	1962-11-06	Detonator
US4374686A (en)	1983-02-22	Delay composition for detonators
US2981186A (en)	1961-04-25	Electric detonator
US4070970A (en)	1978-01-31	Electro-explosive igniters
US1999820A (en)	1935-04-30	Delay cap
US5043030A (en)	1991-08-27	Stab initiator
US3100447A (en)	1963-08-13	Igniter squib
US2400103A (en)	1946-05-14	Detonator or blasting cap
US3160097A (en)	1964-12-08	Molybdenum trioxide-aluminum explosive and exploding bridgewire detonator therefor
US4208967A (en)	1980-06-24	Squib design
US1890112A (en)	1932-12-06	Igniter charge for blasting caps
US2624280A (en)	1953-01-06	Electric initiator
US3286628A (en)	1966-11-22	Electric detonator ignition systems
US2008366A (en)	1935-07-16	Igniter powder
US2363863A (en)	1944-11-28	Priming composition
US3713385A (en)	1973-01-30	Electroexplosive devices
PL181960B1 (pl)	2001-10-31	Element zapalajacy PL PL PL
US2995086A (en)	1961-08-08	Fuseheads
GB1263574A (en)	1972-02-09	Igniter for propellants