WO2003100343A1 - Detonator with onboard electronics mechanically connected to ignition element - Google Patents
Detonator with onboard electronics mechanically connected to ignition element Download PDFInfo
- Publication number
- WO2003100343A1 WO2003100343A1 PCT/IB2003/001968 IB0301968W WO03100343A1 WO 2003100343 A1 WO2003100343 A1 WO 2003100343A1 IB 0301968 W IB0301968 W IB 0301968W WO 03100343 A1 WO03100343 A1 WO 03100343A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- ignition
- electronics
- detonator
- ignition element
- plug
- Prior art date
Links
- 238000000034 method Methods 0.000 claims description 9
- 238000009413 insulation Methods 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 238000002788 crimping Methods 0.000 claims description 3
- 238000005476 soldering Methods 0.000 claims description 2
- FGUUSXIOTUKUDN-IBGZPJMESA-N C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 Chemical compound C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 FGUUSXIOTUKUDN-IBGZPJMESA-N 0.000 claims 1
- 230000000977 initiatory effect Effects 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 claims 1
- 238000007789 sealing Methods 0.000 claims 1
- UQMRAFJOBWOFNS-UHFFFAOYSA-N butyl 2-(2,4-dichlorophenoxy)acetate Chemical compound CCCCOC(=O)COC1=CC=C(Cl)C=C1Cl UQMRAFJOBWOFNS-UHFFFAOYSA-N 0.000 description 4
- 238000005538 encapsulation Methods 0.000 description 4
- 238000005422 blasting Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000001934 delay Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 229910000640 Fe alloy Inorganic materials 0.000 description 1
- 229910000990 Ni alloy Inorganic materials 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005474 detonation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
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
- F42B3/12—Bridge initiators
- F42B3/121—Initiators with incorporated integrated circuit
-
- 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
Definitions
- the present invention relates to pyrotechnic detonators, and more particularly, to a detonator having onboard electronics and an ignition element that are mechanically connected to each other .
- timed detonation can be accomplished by detonators that use pyrotechnic delays, sequential-type blasting machines, and electronically programmable detonators.
- detonators that have onboard electronics, i.e., electronics contained within the detonator itself, for processing an ignition signal from, e.g., a blasting machine, are described in U.S. Patent Nos .
- Such detonators involve soldered connections between the ignition element of the detonator to the onboard electronics, which presents at least the risk of damaging or detonating the ignition element. It is believed that hitherto this problem has not been addressed through the provision of a means to mechanically connect the ignition element to the onboard electronics in a detonator.
- FIG. 1 is a top sectional view of an embodiment of the present invention.
- Fig. 2 is a partial top sectional view of the ignition element and connection portion of the embodiment shown in Fig.
- Fig. 3 is side view corresponding to Fig. 2.
- DETAILED DESCRIPTION OF A PREFERRED EMBODIMENT 1 [0005] Referring to Figs. 1-3, a detonator utilizing an embodiment of the present invention is shown. Referring to Fig. 1, an ignition subassembly 8 is placed inside of a shell 40 that may contain a primary charge 36 and a base charge 38 loaded into its closed end. (A detonator shell is typically a metal cylinder 6 to 8 mm. in diameter and from 60-100 mm. in length). Subassembly 8 can then be secured in place in the shell 40, such as by placing an elastomeric plug or the like (see elastomeric plug 46 and crimp 47 in Figs.
- Subassembly 8 may have a body portion formed of an encapsulation 31 and is preferably formed to snugly fit within the shell 40, preferably with features such as ridges or other protuberances formed to dampen vibrations to which the detonator may be subjected, generally in accordance with the teachings of U.S. Patent No. 6,079,332.
- EU124495286US "DETONATOR WITH AN IGNITION ELEMENT HAVING A TRANSISTOR-TYPE SEALED FEEDTHROUGH, " by David M. Forman and John H. Oldham (Express Mail No. EU124495272US) , each of which applications is assigned to the assignee of the present application. encapsulation are also set forth in U.S. Patent Nos . 6,079,332 and 4, 869, 170.
- a header-based, or automotive airbag initiator-style, igrition element 28 is shown in the embodiment depicted in the Figures, but a detonator according to the present invention may include any kind of suitable ignition element (e.g., matchhead- type) .
- suitable ignition element e.g., matchhead- type
- U.S. Patent Nos. 6,274,252, 5,709,724, 5,639,986, 5,602,359, 5,596,163, 5,404,263, 5,140,906, and 3,971,320 are al.so hereby incorporated by reference herein for their disclosure concerning the construction of ignition elements based on a glass-to-metal sealed header feedthrough, including the types of pins commonly used.
- ignition element 28 includes a header assembly with a sealed electrical feedthrough, comprising an eyelet 10 (preferably stainless steel), insulator glass 14 (preferably a glass such as a sodasilicate, e.g., 9010, that is chosen to form a compression seal with the eyelet and center pin, or less preferably a matched seal), a center pin 18 (preferably iron/nickel alloy) , a ground pin 20, and an igniter wire 12 (preferably a low energy igniter wire with a diameter of 10 to 20 microns) .
- eyelet 10 preferably stainless steel
- insulator glass 14 preferably a glass such as a sodasilicate, e.g., 9010, that is chosen to form a compression seal with the eyelet and center pin, or less preferably a matched seal
- a center pin 18 preferably iron/nickel alloy
- ground pin 20 preferably an igniter wire 12 (preferably a low energy igniter wire with a diameter of 10 to 20 microns) .
- the ignition element 28 further preferably includes a charge can 26 that is preferably metallic and hermetically sealed to the eyelet at circumferential through- weld 16, with an ignition charge 30 contained between the can 26 and upper surface of the header, in tight contact with igniter wire 12.
- An insulator cup 27 may preferably be attached around the can 26 so that, except for female connectors 52 that protrude from the input end of the subassembly, the entire outer surface of ignition subassembly 8 consists of insulating material, thus providing electrical isolation and vibration and environmental protection to the components within until such time as the subassembly is placed in the detonator shell.
- a circuit board 24 and electronic components 25 are provided within ignition subassembly 8, to provide a means of triggering ignition of the ignition element based on the processing of an electrical ignition signal from a blasting machine or the like that supplies power and commands to the detonator.
- Such electronic components are well-known and preferably include means for imparting a programmable period of delay to the ignition, means for ESD and RF protection, et cetera. (Another preferred alternative is the use of an application-specific integrated circuit).
- Circuit board 24 and electronic components 25 are preferably encapsulated together in encapsulation 31, and connected to female connectors 52 and to plug and crimp connectors 50 at contacts 22 through soldering or other suitable connection .
- Suitable plug and crimp connectors 50 that may be purchased off the shelf are suitable for use in an embodiment of the present invention like that depicted.
- pins 18 and 20 of ignition subassembly 28 are inserted within the openings of connectors 50, and a crimping tool is used to securely crimp the connectors 50 to pins 18 and 20.
- Virtually any contact pin (of appropriate size) designed for use with a header is suitable for use with connectors 50.
- ignition subassembly 8 can be completed by the provision of encapsulation 31 around the circuit board, electronics, plug and crimp cornectors, pins, and bottom of the ignition subassemblies .
- a standard off-the-shelf "Insulation Displacement Connection” IDCs can be made, with or without insulation sheathing on the pins. IDCs may be soldered during circuit board assembly in conventional fashion. The pins 18 and 20 of ignition subassembly 28 can then be inserted into an IDC and secured.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Air Bags (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2003228015A AU2003228015A1 (en) | 2002-05-29 | 2003-05-22 | Detonator with onboard electronics mechanically connected to ignition element |
EP03725483A EP1509742A1 (en) | 2002-05-29 | 2003-05-22 | Detonator with onboard electronics mechanically connected to ignition element |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/158,677 US20030221578A1 (en) | 2002-05-29 | 2002-05-29 | Detonator with onboard electronics mechanically connected to ignition element |
US10/158,677 | 2002-05-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003100343A1 true WO2003100343A1 (en) | 2003-12-04 |
Family
ID=29582732
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IB2003/001968 WO2003100343A1 (en) | 2002-05-29 | 2003-05-22 | Detonator with onboard electronics mechanically connected to ignition element |
Country Status (5)
Country | Link |
---|---|
US (1) | US20030221578A1 (en) |
EP (1) | EP1509742A1 (en) |
AU (1) | AU2003228015A1 (en) |
WO (1) | WO2003100343A1 (en) |
ZA (1) | ZA200409577B (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NZ592333A (en) | 2008-10-24 | 2014-10-31 | Battelle Memorial Institute | Electronic detonator system |
US7946466B1 (en) * | 2009-12-07 | 2011-05-24 | Continental Industries, Inc. | Alternative ignition source system for an exothermic reaction mold device |
US7975900B2 (en) * | 2009-12-07 | 2011-07-12 | Continental Industries, Inc. | Ignition source system for an exothermic reaction mold device |
EP2583052B1 (en) * | 2010-06-18 | 2016-11-16 | Battelle Memorial Institute | Non-energetics based detonator |
CA3025037C (en) * | 2016-06-03 | 2022-03-08 | Hubbell Incorporated | Tools for use in confined spaces |
WO2019095098A1 (en) * | 2017-11-14 | 2019-05-23 | 四川桑莱特智能电气设备股份有限公司 | Exothermic welding device and exothermic welding method |
HUE058671T2 (en) * | 2019-12-19 | 2022-09-28 | Schott Ag | Metal fixing material feedthrough, method for the production and uses thereof |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4730558A (en) * | 1984-11-02 | 1988-03-15 | Dynamit Novel Aktiengesellschaft | Electronic delayed-action explosive detonator |
DE9017665U1 (en) * | 1990-11-22 | 1991-08-08 | Temic Bayern-Chemie Airbag Gmbh, 84544 Aschau | Base body for an ignition device |
US5140906A (en) * | 1991-11-05 | 1992-08-25 | Ici Americas, Inc. | Airbag igniter having double glass seal |
US5345872A (en) * | 1993-05-28 | 1994-09-13 | Nippon Koki Co., Ltd. | Igniter |
US5616045A (en) * | 1995-07-14 | 1997-04-01 | Augat Inc. | Squib connector for automotive air bag assembly |
WO1997021067A1 (en) * | 1995-12-06 | 1997-06-12 | Orica Trading Pty Ltd | Electronic explosives initiating device |
WO2000040917A1 (en) * | 1999-01-08 | 2000-07-13 | Dynamit Nobel Gmbh Explosivstoff- Und Systemtechnik | Control module for triggering units for initiating pyrotechnical elements |
US6227115B1 (en) * | 1996-03-19 | 2001-05-08 | Siemens Aktiengesellschaft | Ignition device for tripping a passenger restraint device in a motor vehicle |
US20020001162A1 (en) * | 2000-03-28 | 2002-01-03 | Hirschmann Austria Gmbh | Ignition device for a safety system |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2965033A (en) * | 1956-10-19 | 1960-12-20 | Hercules Powder Co Ltd | Blasting cap assembly |
US3971320A (en) * | 1974-04-05 | 1976-07-27 | Ici United States Inc. | Electric initiator |
US6070531A (en) * | 1997-07-22 | 2000-06-06 | Autoliv Asp, Inc. | Application specific integrated circuit package and initiator employing same |
-
2002
- 2002-05-29 US US10/158,677 patent/US20030221578A1/en not_active Abandoned
-
2003
- 2003-05-22 EP EP03725483A patent/EP1509742A1/en not_active Withdrawn
- 2003-05-22 WO PCT/IB2003/001968 patent/WO2003100343A1/en not_active Application Discontinuation
- 2003-05-22 AU AU2003228015A patent/AU2003228015A1/en not_active Abandoned
-
2004
- 2004-11-26 ZA ZA200409577A patent/ZA200409577B/en unknown
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4730558A (en) * | 1984-11-02 | 1988-03-15 | Dynamit Novel Aktiengesellschaft | Electronic delayed-action explosive detonator |
DE9017665U1 (en) * | 1990-11-22 | 1991-08-08 | Temic Bayern-Chemie Airbag Gmbh, 84544 Aschau | Base body for an ignition device |
US5140906A (en) * | 1991-11-05 | 1992-08-25 | Ici Americas, Inc. | Airbag igniter having double glass seal |
US5345872A (en) * | 1993-05-28 | 1994-09-13 | Nippon Koki Co., Ltd. | Igniter |
US5616045A (en) * | 1995-07-14 | 1997-04-01 | Augat Inc. | Squib connector for automotive air bag assembly |
WO1997021067A1 (en) * | 1995-12-06 | 1997-06-12 | Orica Trading Pty Ltd | Electronic explosives initiating device |
US6227115B1 (en) * | 1996-03-19 | 2001-05-08 | Siemens Aktiengesellschaft | Ignition device for tripping a passenger restraint device in a motor vehicle |
WO2000040917A1 (en) * | 1999-01-08 | 2000-07-13 | Dynamit Nobel Gmbh Explosivstoff- Und Systemtechnik | Control module for triggering units for initiating pyrotechnical elements |
US20020001162A1 (en) * | 2000-03-28 | 2002-01-03 | Hirschmann Austria Gmbh | Ignition device for a safety system |
Also Published As
Publication number | Publication date |
---|---|
EP1509742A1 (en) | 2005-03-02 |
AU2003228015A1 (en) | 2003-12-12 |
US20030221578A1 (en) | 2003-12-04 |
ZA200409577B (en) | 2006-06-28 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US7571679B2 (en) | Energetic material initiation device having integrated low-energy exploding foil initiator header | |
US8485097B1 (en) | Energetic material initiation device | |
US8210083B1 (en) | Detonator cartridge | |
US8408131B1 (en) | Energetic material initiation device | |
JP5144526B2 (en) | Glass / metal feedthrough, manufacturing method thereof, and electrical ignition starting device including the same | |
US8726808B1 (en) | Initiator assembly having low-energy exploding foil initiator header and cover with axially threaded portion | |
WO1994010528A1 (en) | Air bag initiator | |
GB2257776A (en) | Digital delay detonator | |
US6578487B2 (en) | Pyrotechnic initiator with a narrowed sleeve retaining a pyrotechnic charge and methods of making same | |
US10871354B2 (en) | Vibration resistant initiator assembly having exploding foil initiator | |
US20030221578A1 (en) | Detonator with onboard electronics mechanically connected to ignition element | |
US20060027083A1 (en) | Explosive bolt | |
US20170227337A1 (en) | Method for producing a ring-shaped or plate-like element | |
US20030192446A1 (en) | Header with overlying eyelet | |
EP1402226B1 (en) | Pyrotechnic initiator with on-board control circuitry | |
US20030221575A1 (en) | Detonator utilizing features of automotive airbag initiators | |
US4616565A (en) | Modular detonator device | |
US20030221576A1 (en) | Detonator with an ignition element having a transistor-type sealed feedthrough | |
US20030221577A1 (en) | Standalone ignition subassembly for detonators | |
US4951570A (en) | Electrically activated detonator with pyrotechnic device receiving terminals and method of making | |
US6650528B2 (en) | Ignition device for a safety system | |
USH1178H (en) | Electric coupling | |
JP4444717B2 (en) | Ignition device | |
AU2021313307A1 (en) | Conductor for use with a detonator and detonator assembly | |
CN118258275A (en) | Electronic detonator ignition head and equipment thereof |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ OM PH PL PT RO RU SD SE SG SK SL TJ TM TN TR TT TZ UA UG UZ VC VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
WWE | Wipo information: entry into national phase |
Ref document number: 2003725483 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2003228015 Country of ref document: AU |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2004/09577 Country of ref document: ZA Ref document number: 200409577 Country of ref document: ZA |
|
WWP | Wipo information: published in national office |
Ref document number: 2003725483 Country of ref document: EP |
|
NENP | Non-entry into the national phase |
Ref country code: JP |
|
WWW | Wipo information: withdrawn in national office |
Country of ref document: JP |
|
WWW | Wipo information: withdrawn in national office |
Ref document number: 2003725483 Country of ref document: EP |