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
Authority: FR; France
Prior art keywords: electric; mines; primers; protected against; foreign
Prior art date: 1955-11-10
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

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.)

1955-11-10

Filing date

1956-11-06

Publication date

1958-11-03

1956-11-06 Application filed by Montedison SpA, Montecatini Societa Generale per lIndustria Mineraria e Chimica SpA filed Critical Montedison SpA

1958-11-03 Application granted granted Critical

1958-11-03 Publication of FR1166112A publication Critical patent/FR1166112A/en

Status Expired legal-status Critical Current

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
WO1987000264A1 (en) *	1985-06-28	1987-01-15	Moorhouse, D., J.	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
NL198656A (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

1956
- 1956-11-02 US US620030A patent/US2957415A/en not_active Expired - Lifetime
- 1956-11-06 FR FR1166112D patent/FR1166112A/en not_active Expired
- 1956-11-07 CH CH339851D patent/CH339851A/en unknown
- 1956-11-08 GB GB34150/56A patent/GB842043A/en not_active Expired
- 1956-11-08 DE DEM32303A patent/DE1022140B/en active Pending
- 1956-11-09 BE BE552499A patent/BE552499A/en unknown
1958
- 1958-06-27 GB GB20666/58A patent/GB874332A/en not_active Expired
- 1958-07-19 CH CH350234D patent/CH350234A/en unknown
- 1958-07-25 FR FR771122A patent/FR74069E/en not_active Expired

Also Published As

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

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