US2887953A - Explosive cartridge - Google Patents

Explosive cartridge Download PDF

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Publication number
US2887953A
US2887953A US567379A US56737956A US2887953A US 2887953 A US2887953 A US 2887953A US 567379 A US567379 A US 567379A US 56737956 A US56737956 A US 56737956A US 2887953 A US2887953 A US 2887953A
Authority
US
United States
Prior art keywords
case
sheet
cover
annular rib
cylindrical wall
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 - Lifetime
Application number
US567379A
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English (en)
Inventor
Mager Herbert
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of US2887953A publication Critical patent/US2887953A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F42B3/02—Blasting cartridges, i.e. case and explosive adapted to be united into assemblies

Definitions

  • My invention has for its object a cartridge of this type, the case of which takes an active part in the explosion and increases substantially its efiiciency considered as a practical utilisation coeflicient.
  • the ratio between the thickness of the wall of the aluminium or aluminium alloy case and the diameter of the cartridge constituted by the powder core ranges between about 1:80 and 1:1000.
  • Each cover may furthermore be provided along the outer surface of its main transverse section with a depression inside which an electric detonator is housed. It is also provided in registry with said depression with a longitudinal groove or recess housing the wires feeding the detonator and connected with an external supply of energy.
  • Fig. 1 is a half-sectional view thereof.
  • Fig. 2 is a plan view from above.
  • Fig. 3 is a vertical sectional view through line III-III of Fig. 2, the case being shown before it is closed.
  • Fig. 4 is an elevational view of a stack constituted by three of such cartridges.
  • Fig. 5 is a vertical sectional view of said stack on an enlarged scale.
  • the case of the cartridge according to my invention is constituted chiefly by a tubular sheath 1 having preferably a circular cross-section.
  • Said sheath 1 is made advantageously of a sheet of aluminium, zinc, copper or of an alloy of such metals and its thickness is such that, taking into account the diameter of the sheath, the case may take part also in the explosion of the blasting charge inside it.
  • the metal sheet which forms it may be a sheet of aluminium the thickness of which ranges between 0.05 and 0.3 millimeters while its resistance to breaking is above 3 kg./sq. crn.
  • Said sheath 1 which is pemianently closed at one of its ends 3 is advantageously obtained through flowing of the originally selected metal sheet.
  • the sheath 1 is provided in the outer surface of its wall first with a peripheral groove 4 and above the latter with a peripheral outwardly projecting rib 5.
  • the upper end of the sheath 1 is open and its wall flares outwardly at 6 as illustrated in the drawings so as to allow the fitting there of a dished closing cover 7.
  • the latter includes a bottom 3 and a skirt or upstanding peripheral section 9 the upper edge of which is folded and crimped over the upper edge of the sheath 1 so as to provide for a fluidtight closing of the case.
  • the cover 7 is provided furthermore with an inwardly directed rib 10 in its skirt section.
  • the different elements including the groove 4 and the rib 5 on the sheath 1 and the rib 10 on the cover 7 are designed and located in a manner such that, through a fitting of the lower end of a sheath 1 inside the cover 7 of an adjacent cartridge, the rib 10 in the cover of the latter engages the groove 4 in the first sheath while the upper edge of the cover 7 of the second cartridge abuts against the outwardly directed rib 5 of the first sheath,
  • each sheath 1 is provided with a diametrical or transverse recess 14 adapted to carry if desired a detonator 15 as shown in Fig. 5, said detonator being secured to the Wall of said recess through gluing for instance.
  • a groove 17 is formed longitudinally in the skirt 9 of the cover in register with said recess while a corresponding groove 18 is formed in the flaring end 6 of the sheath 1 to house said groove 17 in the cover, the two grooves 17 and 18 registering when the cover 7 is fitted inside the sheath 1.
  • a stack of superposed similar mining cartridges each of which comprises a thin elongated case, including a cylindrical wall made of a rigid sheet of metal containing aluminium as a predominant component, the thickness of which sheet ranges between about 0.05 and 0.3 mm. and the breaking resistance of which sheet is equal to about 3 kgs. per sq.
  • each of which comprises a thin cylindrical case including a cylindrical wall made of a rigid-sheet of metal containing aluminium as a predominant component, the thickness of which sheet ranges between about 0.05 and 0.3 mm. and the breaking resistance of which sheet is equal to about 3 kgs. per sq.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Stackable Containers (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
US567379A 1955-03-08 1956-02-23 Explosive cartridge Expired - Lifetime US2887953A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR332143X 1955-03-08
FR250555X 1955-05-25
FR121255X 1955-12-12

Publications (1)

Publication Number Publication Date
US2887953A true US2887953A (en) 1959-05-26

Family

ID=27248894

Family Applications (1)

Application Number Title Priority Date Filing Date
US567379A Expired - Lifetime US2887953A (en) 1955-03-08 1956-02-23 Explosive cartridge

Country Status (5)

Country Link
US (1) US2887953A (xx)
BE (1) BE545353A (xx)
CH (1) CH332143A (xx)
DE (1) DE1014009B (xx)
GB (1) GB818177A (xx)

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2936708A (en) * 1957-02-21 1960-05-17 Randel Tool Company Inc Detonative element of apparatus for sinking wells by means of explosive charges
US3013492A (en) * 1959-01-21 1961-12-19 Sexton Can Co Inc Explosive cartridge
US3119332A (en) * 1960-09-06 1964-01-28 Dow Chemical Co Explosive compositions having upgraded power factors
US3146711A (en) * 1958-05-24 1964-09-01 Schaadt Franz Shaped charge with rotational insert
US3176617A (en) * 1962-06-11 1965-04-06 Beloit Corp Separate loading of artiliery propellant charges
US3185091A (en) * 1964-01-10 1965-05-25 Hercules Powder Co Ltd Explosive container with yieldable seal
US3246602A (en) * 1964-07-09 1966-04-19 Gulf Oil Corp Explosive cartridge with rigid closure means
US3306200A (en) * 1964-11-20 1967-02-28 Phillips Petroleum Co Container and method of making the same
US3420173A (en) * 1967-03-31 1969-01-07 Atlas Chem Ind Axially expandable and contractable container
US3504628A (en) * 1965-09-24 1970-04-07 Douglas H Pack Packaging for slurry explosives
US4015526A (en) * 1974-04-10 1977-04-05 Imperial Chemical Industries Limited Explosive charge
US4023492A (en) * 1968-11-18 1977-05-17 The United States Of America As Represented By The Secretary Of The Navy Metallic-fuel-enhanced, focused-gas warhead
US4037536A (en) * 1975-09-08 1977-07-26 Imc Chemical Group, Inc. Enclosure for explosive material
US5212342A (en) * 1991-02-11 1993-05-18 Giat Industries Container for receiving propellant charges
WO2003004960A1 (en) * 2001-07-02 2003-01-16 Barry Anthony Hodgkinson System with connectable blasting cartridges
US20100089270A1 (en) * 2007-02-02 2010-04-15 Mattson Inter Tool Gmbh Rock-blasting cartridge and blasting method
CN106154313A (zh) * 2015-04-13 2016-11-23 中石化石油工程地球物理有限公司胜利分公司 高能可降解安全环保震源药柱
CN107328311A (zh) * 2017-07-09 2017-11-07 贵州大学 一种新结构的爆破筒
US20190003811A1 (en) * 2015-09-30 2019-01-03 Weiguo Ma Expansion pipe for blasting and blasting method therefor

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1168307B (de) * 1960-01-29 1964-04-16 Dynamit Nobel Ag Durch Erwaermung zu zuendende Sprengpatrone fuer Metallverformung
DE1278908B (de) * 1963-07-18 1968-09-26 Rheinische Kalksteinwerke Verfahren zur die Sprengwirkung wesentlich unterstuetzenden Verdaemmung von Bohrloechern
GB2132319B (en) * 1982-11-04 1986-10-29 Du Pont Canada Seismic explosive
DE3737704C2 (de) * 1987-11-06 1998-03-12 Rheinmetall Ind Ag Steckverbindung für Treibladungsmodule
FR2672674B1 (fr) * 1991-02-11 1995-01-13 Giat Ind Sa Conteneur muni de moyens de liaison electrique.
US5353710A (en) * 1991-02-11 1994-10-11 Giat Industries Container fitted with electrical connecting means

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2052475A (en) * 1933-03-27 1936-08-25 Frank N Jones Multiunit container
US2061558A (en) * 1933-07-01 1936-11-24 Atlas Powder Co Wrapping for explosives
US2238939A (en) * 1939-01-21 1941-04-22 Du Pont Blasting assembly
US2345887A (en) * 1940-04-05 1944-04-04 Hercules Powder Co Ltd Method of sealing containers
US2358795A (en) * 1940-10-21 1944-09-26 Atlas Powder Co Can connector device
GB704125A (en) * 1952-02-11 1954-02-17 Explosifs Prod Chim Improvements in or relating to the casing of explosives enabling one single charge to be used for all purposes, i.e., undermining blasting, etc.

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB613586A (en) * 1946-06-19 1948-11-30 Donald George Ashcroft Improvements in or relating to blasting cartridge containers
DE901997C (de) * 1950-05-25 1954-01-18 Georg Fredrik Von Krogh Sprengpatrone fuer Sprengungen
DE922217C (de) * 1952-02-11 1955-01-10 Explosifs Prod Chim Sprengpatrone

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2052475A (en) * 1933-03-27 1936-08-25 Frank N Jones Multiunit container
US2061558A (en) * 1933-07-01 1936-11-24 Atlas Powder Co Wrapping for explosives
US2238939A (en) * 1939-01-21 1941-04-22 Du Pont Blasting assembly
US2345887A (en) * 1940-04-05 1944-04-04 Hercules Powder Co Ltd Method of sealing containers
US2358795A (en) * 1940-10-21 1944-09-26 Atlas Powder Co Can connector device
GB704125A (en) * 1952-02-11 1954-02-17 Explosifs Prod Chim Improvements in or relating to the casing of explosives enabling one single charge to be used for all purposes, i.e., undermining blasting, etc.

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2936708A (en) * 1957-02-21 1960-05-17 Randel Tool Company Inc Detonative element of apparatus for sinking wells by means of explosive charges
US3146711A (en) * 1958-05-24 1964-09-01 Schaadt Franz Shaped charge with rotational insert
US3013492A (en) * 1959-01-21 1961-12-19 Sexton Can Co Inc Explosive cartridge
US3119332A (en) * 1960-09-06 1964-01-28 Dow Chemical Co Explosive compositions having upgraded power factors
US3176617A (en) * 1962-06-11 1965-04-06 Beloit Corp Separate loading of artiliery propellant charges
US3185091A (en) * 1964-01-10 1965-05-25 Hercules Powder Co Ltd Explosive container with yieldable seal
US3246602A (en) * 1964-07-09 1966-04-19 Gulf Oil Corp Explosive cartridge with rigid closure means
US3306200A (en) * 1964-11-20 1967-02-28 Phillips Petroleum Co Container and method of making the same
US3504628A (en) * 1965-09-24 1970-04-07 Douglas H Pack Packaging for slurry explosives
US3420173A (en) * 1967-03-31 1969-01-07 Atlas Chem Ind Axially expandable and contractable container
US4023492A (en) * 1968-11-18 1977-05-17 The United States Of America As Represented By The Secretary Of The Navy Metallic-fuel-enhanced, focused-gas warhead
US4015526A (en) * 1974-04-10 1977-04-05 Imperial Chemical Industries Limited Explosive charge
US4037536A (en) * 1975-09-08 1977-07-26 Imc Chemical Group, Inc. Enclosure for explosive material
US5212342A (en) * 1991-02-11 1993-05-18 Giat Industries Container for receiving propellant charges
WO2003004960A1 (en) * 2001-07-02 2003-01-16 Barry Anthony Hodgkinson System with connectable blasting cartridges
US20100089270A1 (en) * 2007-02-02 2010-04-15 Mattson Inter Tool Gmbh Rock-blasting cartridge and blasting method
US8028624B2 (en) * 2007-02-02 2011-10-04 Mattson Inter Tool Gmbh Rock-blasting cartridge and blasting method
CN106154313A (zh) * 2015-04-13 2016-11-23 中石化石油工程地球物理有限公司胜利分公司 高能可降解安全环保震源药柱
US20190003811A1 (en) * 2015-09-30 2019-01-03 Weiguo Ma Expansion pipe for blasting and blasting method therefor
CN107328311A (zh) * 2017-07-09 2017-11-07 贵州大学 一种新结构的爆破筒

Also Published As

Publication number Publication date
GB818177A (en) 1959-08-12
BE545353A (xx)
CH332143A (fr) 1958-08-31
DE1014009B (de) 1957-08-14

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