GB892020A - Electric detonators - Google Patents

Electric detonators

Info

Publication number
GB892020A
GB892020A GB23578/58A GB2357858A GB892020A GB 892020 A GB892020 A GB 892020A GB 23578/58 A GB23578/58 A GB 23578/58A GB 2357858 A GB2357858 A GB 2357858A GB 892020 A GB892020 A GB 892020A
Authority
GB
United Kingdom
Prior art keywords
plug
case
ring
embedded
july
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
GB23578/58A
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.)
Olin Corp
Original Assignee
Olin Corp
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 Olin Corp filed Critical Olin Corp
Publication of GB892020A publication Critical patent/GB892020A/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
    • F42B3/12—Bridge initiators
    • F42B3/125—Bridge initiators characterised by the configuration of the bridge initiator case

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Bags (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

892,020. Electric blasting detonators. OLIN MATHIESON CHEMICAL CORPORATION. July 22, 1958 [July 26, 1957], No. 23578/58. Class 9(1). An electric detonator has a thermoplastic case 8 closed by a thermoplastic plug 1 carrying the lead wires 2 connected by a bridge wire 4 embedded in the explosive filling 9, the closure being made water tight after assembly by fus ing the plug with the case To do this a metal ring 5 or a couple of turns of wire are embedded in the peripheral surface -of the plug and the assembly of plug and case is placed coaxially within an induction coil 10. By connecting the coil 10 to an electric energy source, a current is induced in the ring 5. The heat produced softens the thermo-plastic and the plug and case fuse together. Both the plug and case may be moulded from ethylcellulose, which may be used as insulation 3 for the leads 2 and the ring 5 may be embedded in the plug during the moulding process. The ring 5 may be a nickel-chrominum-steel. Polyvinyl chloride, polyvinyl acetate, polyvinyl chloride-acetate, polystyrene, polyethylene, methyl styrene, acrylonitrile and polymethyl styrene are also said to be suitable thermoplastics from which to mould the case and plug.
GB23578/58A 1957-07-26 1958-07-22 Electric detonators Expired GB892020A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US674507A US2927498A (en) 1957-07-26 1957-07-26 Electric detonators

Publications (1)

Publication Number Publication Date
GB892020A true GB892020A (en) 1962-03-21

Family

ID=24706880

Family Applications (1)

Application Number Title Priority Date Filing Date
GB23578/58A Expired GB892020A (en) 1957-07-26 1958-07-22 Electric detonators

Country Status (5)

Country Link
US (1) US2927498A (en)
BE (1) BE569577A (en)
DE (1) DE1062597B (en)
FR (1) FR1200592A (en)
GB (1) GB892020A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1276156B (en) * 1963-04-17 1968-08-29 Amp Inc Propellant charge pressing tool for connecting a terminal to an electrical conductor

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3925473C1 (en) * 1989-08-01 1993-10-14 Buck Chem Tech Werke Basic exercise mine
DE4435319A1 (en) * 1994-10-01 1996-04-04 Temic Bayern Chem Airbag Gmbh Ignition unit for a gas generator of a passive restraint system
EP2995822B1 (en) * 2014-09-09 2019-11-13 Arianegroup Sas Pyrotechnic actuator
USD1025276S1 (en) * 2020-08-05 2024-04-30 Liaoning Qingyang Explosive Materials Co., Ltd Detonator base

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB652054A (en) * 1948-03-25 1951-04-18 British Mechanical Prod Ltd A new or improved method of securing two interfitting parts together and/or of obtaining a seal between two interfitting connected parts
US2722155A (en) * 1950-11-01 1955-11-01 Olin Mathieson Manufacture of electric blasting caps
US2757566A (en) * 1953-02-26 1956-08-07 Canadian Ind 1954 Ltd Delay electric blasting caps containing spiral delay elements
US2767655A (en) * 1953-06-15 1956-10-23 Olin Mathieson Blasting caps
US2802421A (en) * 1953-11-09 1957-08-13 Hercules Powder Co Ltd Static resistant electric initiator
US2802422A (en) * 1953-11-09 1957-08-13 Hercules Powder Co Ltd Static resistance electric initiator
US2818020A (en) * 1955-11-17 1957-12-31 Glenn A Burklund Safeguarded electric firing initiating devices

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1276156B (en) * 1963-04-17 1968-08-29 Amp Inc Propellant charge pressing tool for connecting a terminal to an electrical conductor

Also Published As

Publication number Publication date
DE1062597B (en) 1959-07-30
BE569577A (en)
FR1200592A (en) 1959-12-22
US2927498A (en) 1960-03-08

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