FR1166112A - Electric safety primers for mines, protected against ignition by foreign electric currents - Google Patents

Electric safety primers for mines, protected against ignition by foreign electric currents

Info

Publication number
FR1166112A
FR1166112A FR1166112DA FR1166112A FR 1166112 A FR1166112 A FR 1166112A FR 1166112D A FR1166112D A FR 1166112DA FR 1166112 A FR1166112 A FR 1166112A
Authority
FR
France
Prior art keywords
electric
mines
primers
protected against
foreign
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
Other languages
French (fr)
Inventor
Fabrizio Lazari
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.)
Montedison SpA
Original Assignee
Montedison SpA
Montecatini Societa Generale per lIndustria Mineraria e Chimica SpA
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 Montedison SpA, Montecatini Societa Generale per lIndustria Mineraria e Chimica SpA filed Critical Montedison SpA
Application granted granted Critical
Publication of FR1166112A publication Critical patent/FR1166112A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C23/00—Compounds containing at least one halogen atom bound to a ring other than a six-membered aromatic ring
    • C07C23/02—Monocyclic halogenated hydrocarbons
    • C07C23/10—Monocyclic halogenated hydrocarbons with a six-membered ring
    • C07C23/12—Hexachlorocyclohexanes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
    • B01J2/24—Obtaining flakes by scraping a solid layer from a surface
    • 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
    • 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
    • F42B3/182—Safety initiators resistant to premature firing by static electricity or stray currents having shunting means

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Fuses (AREA)
  • Air Bags (AREA)
  • Automotive Seat Belt Assembly (AREA)
FR1166112D 1955-11-10 1956-11-06 Electric safety primers for mines, protected against ignition by foreign electric currents Expired FR1166112A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT339851X 1955-11-10

Publications (1)

Publication Number Publication Date
FR1166112A true FR1166112A (en) 1958-11-03

Family

ID=11238478

Family Applications (2)

Application Number Title Priority Date Filing Date
FR1166112D Expired FR1166112A (en) 1955-11-10 1956-11-06 Electric safety primers for mines, protected against ignition by foreign electric currents
FR771122A Expired FR74069E (en) 1955-11-10 1958-07-25 Electric safety primers for mines, protected against ignition by foreign electric currents

Family Applications After (1)

Application Number Title Priority Date Filing Date
FR771122A Expired FR74069E (en) 1955-11-10 1958-07-25 Electric safety primers for mines, protected against ignition by foreign electric currents

Country Status (6)

Country Link
US (1) US2957415A (en)
BE (1) BE552499A (en)
CH (2) CH339851A (en)
DE (1) DE1022140B (en)
FR (2) FR1166112A (en)
GB (2) GB842043A (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3094932A (en) * 1960-07-15 1963-06-25 William D Greenlees Electromagnetic radiation proof igniting device
US3075461A (en) * 1960-10-28 1963-01-29 Bilker & Moyerman Method and apparatus for detonating radio frequency sensitive blasting caps
DE1446952B1 (en) * 1964-07-02 1970-07-09 Dynamit Nobel Ag Electric ignition device
US3414292A (en) * 1966-07-01 1968-12-03 Eaton Yale & Towne Inflatable safety device
US3457431A (en) * 1968-02-20 1969-07-22 Dow Chemical Co Time-delayed control device
US3585933A (en) * 1969-05-02 1971-06-22 Us Army Detonator safety device
IL74188A0 (en) * 1985-01-29 1985-04-30 State Of Israel Ministriy Of D Pyrotechnic grenade
US4869171A (en) * 1985-06-28 1989-09-26 D J Moorhouse And S T Deeley Detonator
US5129322A (en) * 1990-05-14 1992-07-14 Jet Research Center, Inc. Explosive tubing cutter and method of assembly

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1726053A (en) * 1927-10-10 1929-08-27 Brown Ladura Alexander Safety coupler
FR718686A (en) * 1930-07-23 1932-01-27 Lignoza Spolka Akcyjna Electrical assembly for igniters
US2026962A (en) * 1934-03-01 1936-01-07 George D Brown Safety switch
US2494256A (en) * 1945-09-11 1950-01-10 Gulf Research Development Co Apparatus for perforating well casings and well walls
NL88944C (en) * 1949-01-22
US2632389A (en) * 1949-09-13 1953-03-24 Atlas Powder Co Electric explosion initiator
US2704032A (en) * 1951-01-30 1955-03-15 Maruschak Nick Safety mine shooting devices

Also Published As

Publication number Publication date
GB874332A (en) 1961-08-02
GB842043A (en) 1960-07-20
US2957415A (en) 1960-10-25
CH339851A (en) 1959-07-15
BE552499A (en) 1956-11-30
CH350234A (en) 1960-11-15
DE1022140B (en) 1958-01-02
FR74069E (en) 1960-11-07

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