WO2000037395A1 - A detonation initiating device - Google Patents
A detonation initiating device Download PDFInfo
- Publication number
- WO2000037395A1 WO2000037395A1 PCT/IB1999/001971 IB9901971W WO0037395A1 WO 2000037395 A1 WO2000037395 A1 WO 2000037395A1 IB 9901971 W IB9901971 W IB 9901971W WO 0037395 A1 WO0037395 A1 WO 0037395A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- initiating device
- ddnp
- detonation initiating
- particulate form
- detonation
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B45/00—Compositions or products which are defined by structure or arrangement of component of product
- C06B45/02—Compositions or products which are defined by structure or arrangement of component of product comprising particles of diverse size or shape
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06C—DETONATING OR PRIMING DEVICES; FUSES; CHEMICAL LIGHTERS; PYROPHORIC COMPOSITIONS
- C06C7/00—Non-electric detonators; Blasting caps; Primers
Definitions
- This invention relates to a detonator and to a detonation initiating device for
- detonation initiating device which often comprises a metal resistive wire
- the metal resistive wire may be embedded in
- cerium as cerium, tantalum or boron in combination with an oxidiser.
- detonation initiating device is commonly known as a fuse head.
- a thick film bridge initiator usually comprises a printed resistor extending
- the resistor being either polymeric or ceramic in nature, as is common in hybrid electronic
- the bridge is trimmed or printed to value.
- a thin film bridge usually comprises a central conductor; and an annular
- a metal layer forming a resistor is vacuum deposited
- a SCB initiating device uses silicon doping compositions to generate plasma
- the resistor or SCB is disposed in close contact
- the device including:
- an explosive composition including diazodinitrophenol (DDNP),
- DDNP Diazodinitrophenol
- the resistive substance may constitute a thick film bridge for an electronic
- the resistive substance may constitute a thin film bridge.
- the resistive substance may comprise a dope substance
- the explosive composition may further include a binder.
- the binder may be an energetic material.
- the binder is selected from
- the binder may be non- energetic.
- the binder is
- the explosive composition includes
- the DDNP in fine particulate form may have a particle size which is
- the DDNP in particulate form may be a precipitate of a mixture of DDNP and
- the DDNP in particulate form may be in a crystalline or modified crystalline
- the DDNP in particulate form may be prepared substantially as described in
- the DDNP in particulate form may include compounds selected from the
- the oxidisers may be selected from the group comprising chlorates, nitrates,
- perchlorates, and oxides and the fuels may be selected from the group
- Said resistive substance may constitute a resistive bridge and the fine
- particulate DDNP may have a particle size which is at least five times smaller
- the fine particulate DDNP has a particle size which is at least ten times smaller than
- larger particulate form may be between 1 :99 and 20:80 on a mass per mass
- the ratio between the fine particulate DDNP and the DDNP is preferably the ratio between the fine particulate DDNP and the DDNP
- the arrangement may be such that when an external current is applied to the
- the fine particulate DDNP ignites, to initiate ignition of the DDNP in
- the DDNP in fine particulate form may be
- the DDNP is enclosed.
- the DDNP is enclosed.
- DDNP is enclosed by a layer comprising a polymeric material or a resin.
- the detonation initiating device 10 includes two spaced electrical conductors
- composition generally designated by reference numeral 18, covering the
- the explosive composition 18 is prepared from an energetic nitro-cellulose
- the DDNP in fine particulate form 18.1 has a particle size which is magnitudes smaller than the
- the DDNP in particulate form is preferably in a crystalline state and the
- explosive composition 18 includes additional compounds such as other
- the oxidisers are explosives, oxidisers, fuels and/or reducing agents.
- the oxidisers are explosives, oxidisers, fuels and/or reducing agents.
- the oxidisers are explosives, oxidisers, fuels and/or reducing agents.
- the fuels are selected from the group comprising metals and sulphides.
- the oxidiser is lead monoxide (PbO) and the fuel metal is
- the DDNP in fine particulate form 18.1 may alternatively be applied
- the explosives composition 16 is enclosed by a polymeric layer 20.
- particulate DDNP 18.1 initiates ignition of the DDNP in relatively larger
- particulate form 18.2 which in turn ignites a detonator charge (not shown).
- the detonation initiating device according to the invention is not only very
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Air Bags (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Automotive Seat Belt Assembly (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU14039/00A AU778545B2 (en) | 1998-12-21 | 1999-12-09 | A detonation initiating device |
EP99973485A EP1171402A1 (en) | 1998-12-21 | 1999-12-09 | A detonation initiating device |
CA002355256A CA2355256A1 (en) | 1998-12-21 | 1999-12-09 | A detonation initiating device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ZA9811701 | 1998-12-21 | ||
ZA98/11701 | 1998-12-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000037395A1 true WO2000037395A1 (en) | 2000-06-29 |
Family
ID=25587467
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IB1999/001971 WO2000037395A1 (en) | 1998-12-21 | 1999-12-09 | A detonation initiating device |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1171402A1 (en) |
AR (1) | AR021942A1 (en) |
AU (1) | AU778545B2 (en) |
CA (1) | CA2355256A1 (en) |
WO (1) | WO2000037395A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003000624A3 (en) * | 2001-05-10 | 2003-12-11 | Dynamit Nobel Ag | Igniting agents |
DE102004004748A1 (en) * | 2003-03-08 | 2004-09-23 | Dynamit Nobel Ais Gmbh Automotive Ignition Systems | Pyroelectric igniter for explosive charge has housing containing capsule with glass filling, support bridge and ignition charge, and has electrical conductor rods embedded in glass |
JP2006240929A (en) * | 2005-03-04 | 2006-09-14 | Asahi Kasei Chemicals Corp | Initiating explosive-containing film |
Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2195032A (en) * | 1938-04-16 | 1940-03-26 | Atlas Powder Co | Detonator |
US2960933A (en) * | 1945-10-12 | 1960-11-22 | Hercules Powder Co Ltd | Detonator |
FR2090579A5 (en) * | 1970-04-24 | 1972-01-14 | Dynamit Nobel Ag | |
CA1150513A (en) * | 1980-09-19 | 1983-07-26 | Lechoslaw A.M. Utracki | Ignition material for detonators or squibs containing polysulfide binder |
US4858529A (en) * | 1988-07-01 | 1989-08-22 | The United States Of America As Represented By The Department Of Energy | Spark-safe low-voltage detonator |
DE4117717C1 (en) | 1991-05-30 | 1992-12-17 | Dynamit Nobel Ag, 5210 Troisdorf, De | Finely crystalline priming explosive prodn. - by comminuting to specified grain size in non-solvent using high speed stirrer |
FR2704944A1 (en) * | 1993-05-05 | 1994-11-10 | Ncs Pyrotechnie Technologies | Electro-pyrotechnic initiator |
WO1995011421A1 (en) * | 1993-10-20 | 1995-04-27 | Quantic Industries, Inc. | Electrical initiator |
US5646367A (en) * | 1996-03-01 | 1997-07-08 | Remington Arms Company, Inc. | Conductive primer mix |
DE19806388A1 (en) * | 1997-03-07 | 1998-09-10 | Dynamit Nobel Ag | Priming agent element coated with polyurethane protective lacquer |
WO1998045663A1 (en) * | 1997-04-09 | 1998-10-15 | The Ensign-Bickford Company | Initiator with loosely packed ignition charge and method of assembly |
-
1999
- 1999-12-09 AU AU14039/00A patent/AU778545B2/en not_active Ceased
- 1999-12-09 EP EP99973485A patent/EP1171402A1/en not_active Withdrawn
- 1999-12-09 CA CA002355256A patent/CA2355256A1/en not_active Abandoned
- 1999-12-09 WO PCT/IB1999/001971 patent/WO2000037395A1/en active IP Right Grant
- 1999-12-20 AR ARP990106599 patent/AR021942A1/en unknown
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2195032A (en) * | 1938-04-16 | 1940-03-26 | Atlas Powder Co | Detonator |
US2960933A (en) * | 1945-10-12 | 1960-11-22 | Hercules Powder Co Ltd | Detonator |
FR2090579A5 (en) * | 1970-04-24 | 1972-01-14 | Dynamit Nobel Ag | |
CA1150513A (en) * | 1980-09-19 | 1983-07-26 | Lechoslaw A.M. Utracki | Ignition material for detonators or squibs containing polysulfide binder |
US4858529A (en) * | 1988-07-01 | 1989-08-22 | The United States Of America As Represented By The Department Of Energy | Spark-safe low-voltage detonator |
DE4117717C1 (en) | 1991-05-30 | 1992-12-17 | Dynamit Nobel Ag, 5210 Troisdorf, De | Finely crystalline priming explosive prodn. - by comminuting to specified grain size in non-solvent using high speed stirrer |
FR2704944A1 (en) * | 1993-05-05 | 1994-11-10 | Ncs Pyrotechnie Technologies | Electro-pyrotechnic initiator |
WO1995011421A1 (en) * | 1993-10-20 | 1995-04-27 | Quantic Industries, Inc. | Electrical initiator |
US5646367A (en) * | 1996-03-01 | 1997-07-08 | Remington Arms Company, Inc. | Conductive primer mix |
DE19806388A1 (en) * | 1997-03-07 | 1998-09-10 | Dynamit Nobel Ag | Priming agent element coated with polyurethane protective lacquer |
WO1998045663A1 (en) * | 1997-04-09 | 1998-10-15 | The Ensign-Bickford Company | Initiator with loosely packed ignition charge and method of assembly |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003000624A3 (en) * | 2001-05-10 | 2003-12-11 | Dynamit Nobel Ag | Igniting agents |
DE102004004748A1 (en) * | 2003-03-08 | 2004-09-23 | Dynamit Nobel Ais Gmbh Automotive Ignition Systems | Pyroelectric igniter for explosive charge has housing containing capsule with glass filling, support bridge and ignition charge, and has electrical conductor rods embedded in glass |
JP2006240929A (en) * | 2005-03-04 | 2006-09-14 | Asahi Kasei Chemicals Corp | Initiating explosive-containing film |
Also Published As
Publication number | Publication date |
---|---|
AR021942A1 (en) | 2002-09-04 |
AU1403900A (en) | 2000-07-12 |
AU778545B2 (en) | 2004-12-09 |
EP1171402A1 (en) | 2002-01-16 |
CA2355256A1 (en) | 2000-06-29 |
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