WO2004010554A3 - Timer-controlled clamp for initiation elements - Google Patents

Timer-controlled clamp for initiation elements Download PDF

Info

Publication number
WO2004010554A3
WO2004010554A3 PCT/US2003/022723 US0322723W WO2004010554A3 WO 2004010554 A3 WO2004010554 A3 WO 2004010554A3 US 0322723 W US0322723 W US 0322723W WO 2004010554 A3 WO2004010554 A3 WO 2004010554A3
Authority
WO
WIPO (PCT)
Prior art keywords
electrical
initiation
timer
duration
initiation elements
Prior art date
Application number
PCT/US2003/022723
Other languages
French (fr)
Other versions
WO2004010554A2 (en
Inventor
Craig J Boucher
Original Assignee
Ensign Bickford Aerospace & De
Craig J Boucher
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 Ensign Bickford Aerospace & De, Craig J Boucher filed Critical Ensign Bickford Aerospace & De
Priority to EP03765830A priority Critical patent/EP1540681A4/en
Priority to AU2003254056A priority patent/AU2003254056A1/en
Priority to JP2004523205A priority patent/JP2005533991A/en
Priority to US10/521,955 priority patent/US20060098380A1/en
Publication of WO2004010554A2 publication Critical patent/WO2004010554A2/en
Publication of WO2004010554A3 publication Critical patent/WO2004010554A3/en

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current
    • H02H3/093—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current with timing means
    • 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
    • F42B3/18—Safety initiators resistant to premature firing by static electricity or stray currents
    • F42B3/182—Safety initiators resistant to premature firing by static electricity or stray currents having shunting means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C11/00—Electric fuzes
    • F42C11/06—Electric fuzes with time delay by electric circuitry
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C15/00—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges
    • F42C15/40—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges wherein the safety or arming action is effected electrically

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Electronic Switches (AREA)
  • Automotive Seat Belt Assembly (AREA)
  • Emergency Protection Circuit Devices (AREA)

Abstract

This invention relates to protective circuitry (12) for electrical initiation elements (10) and finds utility in preventing inadvertent functioning of electrical bridge-initiation elements, such as semiconductor bridges (SCBs), bridgewires, etc., by transient environmental electrical signals. The protective circuitry (12) of this invention comprises a timer portion (14) and a clamping portion (16) and is designed to divert from the electrical initiation element (10) at least a portion of an electrical signal received at the input nodes (10a, 10b) thereof for a suitable time interval that corresponds to the duration of an expected transient signal, which is typically significantly smaller than the duration of a proper initiation signal.
PCT/US2003/022723 2002-07-24 2003-07-21 Timer-controlled clamp for initiation elements WO2004010554A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP03765830A EP1540681A4 (en) 2002-07-24 2003-07-21 Timer-controlled clamp for initiation elements
AU2003254056A AU2003254056A1 (en) 2002-07-24 2003-07-21 Timer-controlled clamp for initiation elements
JP2004523205A JP2005533991A (en) 2002-07-24 2003-07-21 Timer controlled clamp for detonation elements
US10/521,955 US20060098380A1 (en) 2002-07-24 2003-07-21 Timer-controlled clamp for initiation elements

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US39832102P 2002-07-24 2002-07-24
US60/398,321 2002-07-24

Publications (2)

Publication Number Publication Date
WO2004010554A2 WO2004010554A2 (en) 2004-01-29
WO2004010554A3 true WO2004010554A3 (en) 2004-07-08

Family

ID=30771212

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2003/022723 WO2004010554A2 (en) 2002-07-24 2003-07-21 Timer-controlled clamp for initiation elements

Country Status (6)

Country Link
US (1) US20060098380A1 (en)
EP (1) EP1540681A4 (en)
JP (1) JP2005533991A (en)
KR (1) KR20050069973A (en)
AU (1) AU2003254056A1 (en)
WO (1) WO2004010554A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2880110B1 (en) 2004-12-23 2007-03-30 Davey Bickford Snc PYRO-ELECTRONIC PRIMER HAVING AN ELECTROTHERMAL BRIDGE SHUNT CIRCUIT
CN110375599B (en) * 2019-07-16 2024-07-02 广西中爆电子科技有限公司 Anti-radio-frequency interference circuit for electronic detonator

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5138995A (en) * 1989-07-29 1992-08-18 Prufrex-Elektro-Apparatebau Inh. Helga Muller geb. Dutschke Ignition process, arrangement and apparatus for internal combustion engines with a magneto
US5460093A (en) * 1993-08-02 1995-10-24 Thiokol Corporation Programmable electronic time delay initiator
US5526460A (en) * 1994-04-25 1996-06-11 Black & Decker Inc. Impact wrench having speed control circuit
US6249410B1 (en) * 1999-08-23 2001-06-19 Taiwan Semiconductor Manufacturing Company ESD protection circuit without overstress gate-driven effect
US6281741B1 (en) * 1998-02-05 2001-08-28 Agere Systems Guardian Corp. Integrated circuit including current mirror and dual-function transistor
US6281735B1 (en) * 1999-09-09 2001-08-28 National Semiconductor Corporation Voltage clamping circuits for limiting the voltage range of an input signal

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3589294A (en) * 1957-06-21 1971-06-29 Us Navy System for multiple point simultaneous initiation of explosive charges
DE3336534A1 (en) * 1983-10-07 1985-04-25 Diehl GmbH & Co, 8500 Nürnberg ELECTRONIC IGNITION CONTROL
US4712477A (en) * 1985-06-10 1987-12-15 Asahi Kasei Kogyo Kabushiki Kaisha Electronic delay detonator
US5477414A (en) * 1993-05-03 1995-12-19 Xilinx, Inc. ESD protection circuit
US5847309A (en) * 1995-08-24 1998-12-08 Auburn University Radio frequency and electrostatic discharge insensitive electro-explosive devices having non-linear resistances
US5631793A (en) * 1995-09-05 1997-05-20 Winbond Electronics Corporation Capacitor-couple electrostatic discharge protection circuit
US5835328A (en) * 1995-12-21 1998-11-10 Intel Corporation Breakdown-tiggered transient discharge circuit
FR2749073B1 (en) * 1996-05-24 1998-08-14 Davey Bickford PROCEDURE FOR ORDERING DETONATORS OF THE TYPE WITH ELECTRONIC IGNITION MODULE, FIRE CONTROL CODE ASSEMBLY AND IGNITION MODULE FOR ITS IMPLEMENTATION
US5734258A (en) * 1996-06-03 1998-03-31 General Electric Company Bidirectional buck boost converter
US5995724A (en) * 1996-11-01 1999-11-30 Mikkelsen; Carl Image process system and process using personalization techniques
US5877927A (en) * 1996-10-01 1999-03-02 Intel Corporation Method and apparatus for providing electrostatic discharge protection for high voltage inputs
US5946177A (en) * 1998-08-17 1999-08-31 Motorola, Inc. Circuit for electrostatic discharge protection
US6501632B1 (en) * 1999-08-06 2002-12-31 Sarnoff Corporation Apparatus for providing high performance electrostatic discharge protection
US6374741B1 (en) * 2000-03-03 2002-04-23 New Mexico Tech Research Foundation Non-lethal projectile to be launched from a launcher

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5138995A (en) * 1989-07-29 1992-08-18 Prufrex-Elektro-Apparatebau Inh. Helga Muller geb. Dutschke Ignition process, arrangement and apparatus for internal combustion engines with a magneto
US5460093A (en) * 1993-08-02 1995-10-24 Thiokol Corporation Programmable electronic time delay initiator
US5526460A (en) * 1994-04-25 1996-06-11 Black & Decker Inc. Impact wrench having speed control circuit
US6281741B1 (en) * 1998-02-05 2001-08-28 Agere Systems Guardian Corp. Integrated circuit including current mirror and dual-function transistor
US6249410B1 (en) * 1999-08-23 2001-06-19 Taiwan Semiconductor Manufacturing Company ESD protection circuit without overstress gate-driven effect
US6281735B1 (en) * 1999-09-09 2001-08-28 National Semiconductor Corporation Voltage clamping circuits for limiting the voltage range of an input signal

Also Published As

Publication number Publication date
EP1540681A2 (en) 2005-06-15
EP1540681A4 (en) 2006-05-17
AU2003254056A8 (en) 2004-02-09
JP2005533991A (en) 2005-11-10
US20060098380A1 (en) 2006-05-11
AU2003254056A1 (en) 2004-02-09
WO2004010554A2 (en) 2004-01-29
KR20050069973A (en) 2005-07-05

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