FR2428816A1 - Electric detonator cap with dischargeable energy source - which is coupled to ignition element when decoder receives ignition command signal over input wires - Google Patents

Electric detonator cap with dischargeable energy source - which is coupled to ignition element when decoder receives ignition command signal over input wires

Info

Publication number
FR2428816A1
FR2428816A1 FR7817524A FR7817524A FR2428816A1 FR 2428816 A1 FR2428816 A1 FR 2428816A1 FR 7817524 A FR7817524 A FR 7817524A FR 7817524 A FR7817524 A FR 7817524A FR 2428816 A1 FR2428816 A1 FR 2428816A1
Authority
FR
France
Prior art keywords
ignition
command signal
energy source
coupled
electric detonator
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
FR7817524A
Other languages
French (fr)
Other versions
FR2428816B1 (en
Inventor
John Bengt Goran Hedberg
Nils Almer Lennart Westerlund
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.)
TRI ELECTRONICS AB
Original Assignee
TRI ELECTRONICS AB
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 TRI ELECTRONICS AB filed Critical TRI ELECTRONICS AB
Priority to FR7817524A priority Critical patent/FR2428816A1/en
Publication of FR2428816A1 publication Critical patent/FR2428816A1/en
Application granted granted Critical
Publication of FR2428816B1 publication Critical patent/FR2428816B1/fr
Granted legal-status Critical Current

Links

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
    • F42B3/18—Safety initiators resistant to premature firing by static electricity or stray currents
    • 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

Abstract

The electric detonator cap includes an explosive charge (2), an electric ignition device (3) which receives its ignition energy from a dischargeable source (5), and a controllable switch (1). Wires (6, 7) can be connected to an external energy source to charge the internal source (5). A decoder (9) is also connected to the wires (6, 7). When the decoder receives a specific ignition command signal via the wires, it closes the detonation switch (11) via a delay circuit (10).
FR7817524A 1978-06-12 1978-06-12 Electric detonator cap with dischargeable energy source - which is coupled to ignition element when decoder receives ignition command signal over input wires Granted FR2428816A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7817524A FR2428816A1 (en) 1978-06-12 1978-06-12 Electric detonator cap with dischargeable energy source - which is coupled to ignition element when decoder receives ignition command signal over input wires

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7817524A FR2428816A1 (en) 1978-06-12 1978-06-12 Electric detonator cap with dischargeable energy source - which is coupled to ignition element when decoder receives ignition command signal over input wires

Publications (2)

Publication Number Publication Date
FR2428816A1 true FR2428816A1 (en) 1980-01-11
FR2428816B1 FR2428816B1 (en) 1983-01-21

Family

ID=9209379

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7817524A Granted FR2428816A1 (en) 1978-06-12 1978-06-12 Electric detonator cap with dischargeable energy source - which is coupled to ignition element when decoder receives ignition command signal over input wires

Country Status (1)

Country Link
FR (1) FR2428816A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003106915A1 (en) * 2001-06-06 2003-12-24 Federal State Unitary Enterpraises Novosibirsk Mechanical Plant "Iskra" Detonating device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2209090A1 (en) * 1972-12-05 1974-06-28 Messerschmitt Boelkow Blohm

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2209090A1 (en) * 1972-12-05 1974-06-28 Messerschmitt Boelkow Blohm

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003106915A1 (en) * 2001-06-06 2003-12-24 Federal State Unitary Enterpraises Novosibirsk Mechanical Plant "Iskra" Detonating device

Also Published As

Publication number Publication date
FR2428816B1 (en) 1983-01-21

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Legal Events

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TP Transmission of property