ES356570A1 - Improvements in or relating to explosive devices provided with electric fuses - Google Patents

Improvements in or relating to explosive devices provided with electric fuses

Info

Publication number
ES356570A1
ES356570A1 ES356570A ES356570A ES356570A1 ES 356570 A1 ES356570 A1 ES 356570A1 ES 356570 A ES356570 A ES 356570A ES 356570 A ES356570 A ES 356570A ES 356570 A1 ES356570 A1 ES 356570A1
Authority
ES
Spain
Prior art keywords
casing
relating
wires
devices provided
explosive devices
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
ES356570A
Other languages
Spanish (es)
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.)
Dynamit Nobel AG
Original Assignee
Dynamit Nobel AG
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 Dynamit Nobel AG filed Critical Dynamit Nobel AG
Publication of ES356570A1 publication Critical patent/ES356570A1/en
Expired 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
    • F42B3/103—Mounting initiator heads in initiators; Sealing-plugs
    • 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
    • F42B3/185—Safety initiators resistant to premature firing by static electricity or stray currents having semi-conductive means, e.g. sealing plugs

Abstract

An explosive device, e.g. a detonator, which is resistant to electrostatic discharges comprises, a metal casing 1 containing an explosive charge 2 an electrically insulating closure plug 4 and fuse wires 5 for igniting the composition and a coating 9 of limited electrical conductivity formed from a lacquer and electrically conductive particles, the casing and at least one of the fuse wires being electrically connected via this layer which has an electrical resistance of 0À5 k# to 500 k# between the casing and fuse wire(s). The resistance between the wires 5 is also from 0À5 k# to 500 k#. The layer 9 contains graphite or aluminium, silver or copper powder.
ES356570A 1967-11-29 1968-07-27 Improvements in or relating to explosive devices provided with electric fuses Expired ES356570A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DED0054710 1967-11-29

Publications (1)

Publication Number Publication Date
ES356570A1 true ES356570A1 (en) 1970-02-16

Family

ID=7055978

Family Applications (1)

Application Number Title Priority Date Filing Date
ES356570A Expired ES356570A1 (en) 1967-11-29 1968-07-27 Improvements in or relating to explosive devices provided with electric fuses

Country Status (5)

Country Link
BE (1) BE724266A (en)
DE (1) DE1646344A1 (en)
ES (1) ES356570A1 (en)
FR (1) FR1593166A (en)
GB (1) GB1206245A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2397365B (en) * 1978-09-01 2004-11-10 Emi Ltd RF protection device
DE102006043063B4 (en) * 2006-09-14 2015-08-27 Friedrich-Wilhelm Sobbe Ignition means with initial set secured against accidental ignition by electrostatic charging

Also Published As

Publication number Publication date
DE1646344A1 (en) 1971-07-08
BE724266A (en) 1969-05-21
FR1593166A (en) 1970-05-25
GB1206245A (en) 1970-09-23

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