WO1993023718A3 - Electric initiating means for a shock tube - Google Patents

Electric initiating means for a shock tube Download PDF

Info

Publication number
WO1993023718A3
WO1993023718A3 PCT/GB1993/001009 GB9301009W WO9323718A3 WO 1993023718 A3 WO1993023718 A3 WO 1993023718A3 GB 9301009 W GB9301009 W GB 9301009W WO 9323718 A3 WO9323718 A3 WO 9323718A3
Authority
WO
WIPO (PCT)
Prior art keywords
bore
shock tube
initiating means
electric initiating
shock tubing
Prior art date
Application number
PCT/GB1993/001009
Other languages
French (fr)
Other versions
WO1993023718A2 (en
Inventor
Peter Christian Shann
Original Assignee
Explosive Dev 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 Explosive Dev Ltd filed Critical Explosive Dev Ltd
Publication of WO1993023718A2 publication Critical patent/WO1993023718A2/en
Publication of WO1993023718A3 publication Critical patent/WO1993023718A3/en

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
    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06C—DETONATING OR PRIMING DEVICES; FUSES; CHEMICAL LIGHTERS; PYROPHORIC COMPOSITIONS
    • C06C5/00—Fuses, e.g. fuse cords
    • C06C5/04—Detonating fuses

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Primary Cells (AREA)
  • Disintegrating Or Milling (AREA)

Abstract

The invention relates to a method of, and apparatus for, initiating the ignition of shock tubing. In one described embodiment a passageway, defined by a bore (13), is closed at one end and arranged with its open end (11c) adjacent an end (18a) of the shock tubing (18) to be ignited. The passageway includes two electrodes (12, 14), axially spaced within the bore (13), and an electrical circuit including a battery means (16) and a capacitor (17) is arranged to generate a spark between the electrodes (12, 14) to generate a high energy compression pulse within the bore (13), and which high energy compression pulse is directed by the bore (13) into the end (18a) of the shock tubing (18) to effect ignition of the tube (18).
PCT/GB1993/001009 1992-05-21 1993-05-18 Electric initiating means for a shock tube WO1993023718A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB929210845A GB9210845D0 (en) 1992-05-21 1992-05-21 Improvements in or relating to initiating means
GB9210845.5 1992-05-21

Publications (2)

Publication Number Publication Date
WO1993023718A2 WO1993023718A2 (en) 1993-11-25
WO1993023718A3 true WO1993023718A3 (en) 1994-01-20

Family

ID=10715838

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1993/001009 WO1993023718A2 (en) 1992-05-21 1993-05-18 Electric initiating means for a shock tube

Country Status (4)

Country Link
AU (1) AU4081193A (en)
GB (1) GB9210845D0 (en)
WO (1) WO1993023718A2 (en)
ZA (1) ZA933560B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6435095B1 (en) * 2000-08-09 2002-08-20 Mccormick Selph, Inc. Linear ignition system

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2064706A (en) * 1935-04-09 1936-12-15 John F Wiggert Automatic blasting fuse igniting device
US3298306A (en) * 1964-05-26 1967-01-17 Bendix Corp Electro-explosive device
FR1578274A (en) * 1967-07-20 1969-08-14 Nitro Nobel Ab
US3717794A (en) * 1971-03-08 1973-02-20 Explosives Corp America Blasting device
US3955505A (en) * 1950-05-31 1976-05-11 The United States Of America As Represented By The United States Energy Research And Development Administration Detonating apparatus
US4924774A (en) * 1989-05-16 1990-05-15 Trw Vehicle Safety Systems Inc. Apparatus for igniting a pyrotechnic transmission line
US5052301A (en) * 1990-07-30 1991-10-01 Walker Richard E Electric initiator for blasting caps
WO1992010718A1 (en) * 1990-12-14 1992-06-25 Eev Limited Firing arrangements
US5144893A (en) * 1991-08-06 1992-09-08 The United States Of America As Represented By The Secretary Of The Army Safe ordnance initiation system
WO1992018828A1 (en) * 1991-04-20 1992-10-29 Explosive Developments Limited Method and apparatus for initiating 'nonel' tubes

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2064706A (en) * 1935-04-09 1936-12-15 John F Wiggert Automatic blasting fuse igniting device
US3955505A (en) * 1950-05-31 1976-05-11 The United States Of America As Represented By The United States Energy Research And Development Administration Detonating apparatus
US3298306A (en) * 1964-05-26 1967-01-17 Bendix Corp Electro-explosive device
FR1578274A (en) * 1967-07-20 1969-08-14 Nitro Nobel Ab
US3717794A (en) * 1971-03-08 1973-02-20 Explosives Corp America Blasting device
US4924774A (en) * 1989-05-16 1990-05-15 Trw Vehicle Safety Systems Inc. Apparatus for igniting a pyrotechnic transmission line
US5052301A (en) * 1990-07-30 1991-10-01 Walker Richard E Electric initiator for blasting caps
WO1992010718A1 (en) * 1990-12-14 1992-06-25 Eev Limited Firing arrangements
WO1992018828A1 (en) * 1991-04-20 1992-10-29 Explosive Developments Limited Method and apparatus for initiating 'nonel' tubes
US5144893A (en) * 1991-08-06 1992-09-08 The United States Of America As Represented By The Secretary Of The Army Safe ordnance initiation system

Also Published As

Publication number Publication date
WO1993023718A2 (en) 1993-11-25
ZA933560B (en) 1994-01-14
AU4081193A (en) 1993-12-13
GB9210845D0 (en) 1992-07-08

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