GB862704A - Improvements in or relating to blasting caps - Google Patents

Improvements in or relating to blasting caps

Info

Publication number
GB862704A
GB862704A GB39022/59A GB3902259A GB862704A GB 862704 A GB862704 A GB 862704A GB 39022/59 A GB39022/59 A GB 39022/59A GB 3902259 A GB3902259 A GB 3902259A GB 862704 A GB862704 A GB 862704A
Authority
GB
United Kingdom
Prior art keywords
lead
powdered
layer
aluminium
iron
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
GB39022/59A
Inventor
John Paul Ireland Jr
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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
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 EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Priority to GB39022/59A priority Critical patent/GB862704A/en
Publication of GB862704A publication Critical patent/GB862704A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06C—DETONATING OR PRIMING DEVICES; FUSES; CHEMICAL LIGHTERS; PYROPHORIC COMPOSITIONS
    • C06C7/00—Non-electric detonators; Blasting caps; Primers
    • 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
    • F42B3/12—Bridge initiators

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

862,704. Blasting fuzes. DU PONT DE NEMOURS & CO., E. I. Nov. 17, 1959, No. 39022/59. Classes 9(1) and 9(2). Relates to an electric blasting cap having a metal shell 1 which contains a base load 2, a priming charge 3, a plastic capsule 4 containing a powdered lead styphnate ignition composition 5, a rubber plug 8, through which lead wires 7, 7<SP>1</SP> to a bridge wire 9 are passed, and is characterized by a layer 6 of free-flowing compressible powder, which is less sensitive to imitation by electrostatic discharge than powdered lead styphnate. The layer 6 may be electrically conductive and comprise powdered copper, iron, aluminium, of graphite, or made of explosive such as lead nitrate-bis-basic lead-4, 6-dinitro-o-cresylate, or dibasic lead phosphite. The layer may also be formed of a combustible such as smokeless powder, bismuth, selenium, tellurium, or magnesium mixed with barium peroxide, or be inert, in which case powdered barium peroxide, cement, and oxides of aluminium, zinc, copper, lead, iron are satisfactory.
GB39022/59A 1959-11-17 1959-11-17 Improvements in or relating to blasting caps Expired GB862704A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB39022/59A GB862704A (en) 1959-11-17 1959-11-17 Improvements in or relating to blasting caps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB39022/59A GB862704A (en) 1959-11-17 1959-11-17 Improvements in or relating to blasting caps

Publications (1)

Publication Number Publication Date
GB862704A true GB862704A (en) 1961-03-15

Family

ID=10407122

Family Applications (1)

Application Number Title Priority Date Filing Date
GB39022/59A Expired GB862704A (en) 1959-11-17 1959-11-17 Improvements in or relating to blasting caps

Country Status (1)

Country Link
GB (1) GB862704A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2281608A (en) * 1993-08-25 1995-03-08 Ems Patvag Ag Igniting device for a gas generator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2281608A (en) * 1993-08-25 1995-03-08 Ems Patvag Ag Igniting device for a gas generator

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