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GB1231694A - - Google Patents

Info

Publication number
GB1231694A
GB1231694A GB1231694DA GB1231694A GB 1231694 A GB1231694 A GB 1231694A GB 1231694D A GB1231694D A GB 1231694DA GB 1231694 A GB1231694 A GB 1231694A
Authority
GB
United Kingdom
Prior art keywords
electrodes
bridge
semi
circuit
igniter
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.)
Expired
Application number
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 filed Critical
Publication of GB1231694A publication Critical patent/GB1231694A/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42AMMUNITION; BLASTING
    • F42BEXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B3/00Blasting cartridges, i.e. case and explosive
    • F42B3/10Initiators therefor
    • F42B3/12Bridge initiators
    • F42B3/13Bridge initiators with semiconductive bridge
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42AMMUNITION; BLASTING
    • F42CAMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C19/00Details of fuzes
    • F42C19/08Primers; Detonators
    • F42C19/12Primers; Detonators electric

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)

Abstract

1,231,694. Electrical igniters. DYNAMIT NOBEL A.G. 28 March, 1969 [5 April, 1968], No. 16557/69. Heading F3A. An electrical igniter comprises a circuit formed by an electrically conductive igniter composition 5, Fig. 1, two electrodes 1 and 2 which are in electrically conductive connection with one another via the igniter composition, and at least one semi-conducting member 6 of which the resistance is voltage dependent and which is positioned in the circuit so as to form a bridge between one electrode and the igniter composition, to divide one electrode into two parts (see chain lines) which lie in series with respect to the circuit, or form a bridge between the two electrodes. The latter bridge may be formed by a further semi-conductor (7, Fig. 2, not shown). Various other arrangements of the electrodes and semi-conductors are illustrated in Figs. 3-7 (not shown).
GB1231694D 1968-04-05 1969-03-28 Expired GB1231694A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681763122 DE1763122A1 (en) 1968-04-05 1968-04-05 Ignition element

Publications (1)

Publication Number Publication Date
GB1231694A true GB1231694A (en) 1971-05-12

Family

ID=5697380

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1231694D Expired GB1231694A (en) 1968-04-05 1969-03-28

Country Status (8)

Country Link
AT (1) AT286154B (en)
BE (1) BE731101A (en)
CH (1) CH503968A (en)
DE (1) DE1763122A1 (en)
FR (1) FR1600106A (en)
GB (1) GB1231694A (en)
NL (1) NL6815367A (en)
NO (1) NO119465B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4525238A (en) * 1982-12-15 1985-06-25 Sfernice Societe Francaise De L'electro-Resistance Process for manufacturing an electric circuit intended for firing a pyrotechnic device and the circuit thus obtained

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2436963A1 (en) * 1978-09-19 1980-04-18 France Etat ELECTRIC PRIMER WITH CONDUCTIVE COMPOSITION
DE3440660A1 (en) * 1983-11-09 1985-07-25 Dynamit Nobel Ag, 5210 Troisdorf Electrical detonating means
ES537505A0 (en) * 1983-11-09 1985-10-16 Dynamit Nobel Ag ELECTRIC DETONATOR DEVICE
RU2126947C1 (en) * 1997-08-27 1999-02-27 Белявский Анатолий Геннадьевич Method of tests of bridge initiator for sensitivity to electric pulse
RU2156946C1 (en) * 1999-02-08 2000-09-27 Российский Федеральный Ядерный Центр - Всероссийский Научно-Исследовательский Институт Экспериментальной Физики Electric initiator with self-disconnection from current source

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4525238A (en) * 1982-12-15 1985-06-25 Sfernice Societe Francaise De L'electro-Resistance Process for manufacturing an electric circuit intended for firing a pyrotechnic device and the circuit thus obtained

Also Published As

Publication number Publication date
DE1763122A1 (en) 1970-10-22
NO119465B (en) 1970-05-19
NL6815367A (en) 1969-10-07
BE731101A (en) 1969-09-15
AT286154B (en) 1970-11-25
FR1600106A (en) 1970-07-20
CH503968A (en) 1971-02-28

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Legal Events

Date Code Title Description
PS Patent sealed
429A Application made for amendment of specification (sect. 29/1949)
434A Offer to surrender (sect. 34/1949)
4293 Case decided by the comptroller ** patent surrendered (sect. 29/1949)
4333 Proceeding terminated by surrender of patent under section 34 patents act 1949