CA2224870A1 - Blasting machine and method - Google Patents

Blasting machine and method

Info

Publication number
CA2224870A1
CA2224870A1 CA 2224870 CA2224870A CA2224870A1 CA 2224870 A1 CA2224870 A1 CA 2224870A1 CA 2224870 CA2224870 CA 2224870 CA 2224870 A CA2224870 A CA 2224870A CA 2224870 A1 CA2224870 A1 CA 2224870A1
Authority
CA
Canada
Prior art keywords
detonator
blasting machine
impedance
transformer
resists
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.)
Granted
Application number
CA 2224870
Other languages
French (fr)
Other versions
CA2224870C (en
Inventor
Liqing Liu
Michael Norman Lussier
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.)
Innicor Perforating Systems Inc
Original Assignee
Prime Perforating Systems Ltd
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 Prime Perforating Systems Ltd filed Critical Prime Perforating Systems Ltd
Priority to CA002557913A priority Critical patent/CA2557913A1/en
Priority to CA 2224870 priority patent/CA2224870C/en
Publication of CA2224870A1 publication Critical patent/CA2224870A1/en
Application granted granted Critical
Publication of CA2224870C publication Critical patent/CA2224870C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42D—BLASTING
    • F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
    • F42D1/04—Arrangements for ignition
    • F42D1/045—Arrangements for electric ignition
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Bags (AREA)
  • Dc Digital Transmission (AREA)

Abstract

Detonator Apparatus, such as a blasting machine detonator, is provided with a miniature transformer having multi-turn primary and secondary coils. The transformer feeds a bridge wire detonator element, and has sufficient impedance to permit impedance matching with a carrier that may be as long as 7500 m. The impedance of the detonator is such that the detonator resists firing when subject to stray currents or commonly present power or communications signals. A
blasting machine is provided that is specifically designed to provide a signal having a frequency in the range in which the detonator is sensitive. The blasting machine relies upon semi-conductor switching and timing circuits to control the discharge from a pair of capacitors, rather than upon an output transformer.
CA 2224870 1997-12-16 1997-12-16 Blasting machine and method Expired - Fee Related CA2224870C (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CA002557913A CA2557913A1 (en) 1997-12-16 1997-12-16 Blasting machine and method
CA 2224870 CA2224870C (en) 1997-12-16 1997-12-16 Blasting machine and method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA 2224870 CA2224870C (en) 1997-12-16 1997-12-16 Blasting machine and method

Related Child Applications (1)

Application Number Title Priority Date Filing Date
CA002557913A Division CA2557913A1 (en) 1997-12-16 1997-12-16 Blasting machine and method

Publications (2)

Publication Number Publication Date
CA2224870A1 true CA2224870A1 (en) 1999-06-16
CA2224870C CA2224870C (en) 2006-10-24

Family

ID=29275405

Family Applications (2)

Application Number Title Priority Date Filing Date
CA002557913A Abandoned CA2557913A1 (en) 1997-12-16 1997-12-16 Blasting machine and method
CA 2224870 Expired - Fee Related CA2224870C (en) 1997-12-16 1997-12-16 Blasting machine and method

Family Applications Before (1)

Application Number Title Priority Date Filing Date
CA002557913A Abandoned CA2557913A1 (en) 1997-12-16 1997-12-16 Blasting machine and method

Country Status (1)

Country Link
CA (2) CA2557913A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105423830A (en) * 2015-12-25 2016-03-23 安徽理工大学 Delay electric detonator free of delay powder
EP3686395A3 (en) * 2017-08-09 2020-10-21 GeoDynamics, Inc. Igniter system, downhole tool and method
US10920544B2 (en) 2017-08-09 2021-02-16 Geodynamics, Inc. Setting tool igniter system and method
CN113310368A (en) * 2021-04-25 2021-08-27 上海卫星工程研究所 Initiating explosive device ignition circuit based on constant current drive

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101861509B (en) * 2007-09-10 2014-04-09 桑德威克采矿和建筑Rsa股份有限公司 Electronic blasting capsule
KR101398762B1 (en) * 2009-01-28 2014-05-27 샌드빅 마이닝 앤드 컨스트럭션 알에스에이 (피티와이) 리미티드 Cartridge for breaking rock
US9915513B1 (en) 2017-02-05 2018-03-13 Dynaenergetics Gmbh & Co. Kg Electronic ignition circuit and method for use
US11307011B2 (en) * 2017-02-05 2022-04-19 DynaEnergetics Europe GmbH Electronic initiation simulator

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105423830A (en) * 2015-12-25 2016-03-23 安徽理工大学 Delay electric detonator free of delay powder
CN105423830B (en) * 2015-12-25 2018-03-13 安徽理工大学 A kind of delay electric detonator of no delay medicine
EP3686395A3 (en) * 2017-08-09 2020-10-21 GeoDynamics, Inc. Igniter system, downhole tool and method
US10914147B2 (en) 2017-08-09 2021-02-09 Geodynamics, Inc. Setting tool igniter system and method
US10920544B2 (en) 2017-08-09 2021-02-16 Geodynamics, Inc. Setting tool igniter system and method
CN113310368A (en) * 2021-04-25 2021-08-27 上海卫星工程研究所 Initiating explosive device ignition circuit based on constant current drive

Also Published As

Publication number Publication date
CA2557913A1 (en) 1999-06-16
CA2224870C (en) 2006-10-24

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed