CN1934408A - Blasting cartridge - Google Patents
Blasting cartridge Download PDFInfo
- Publication number
- CN1934408A CN1934408A CNA2005800085795A CN200580008579A CN1934408A CN 1934408 A CN1934408 A CN 1934408A CN A2005800085795 A CNA2005800085795 A CN A2005800085795A CN 200580008579 A CN200580008579 A CN 200580008579A CN 1934408 A CN1934408 A CN 1934408A
- Authority
- CN
- China
- Prior art keywords
- explosive cartridge
- explosive
- outside
- blasting cap
- end unit
- 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.)
- Granted
Links
- 238000005422 blasting Methods 0.000 title claims description 34
- 239000002360 explosive Substances 0.000 claims abstract description 93
- 125000006850 spacer group Chemical group 0.000 claims abstract description 28
- 238000007789 sealing Methods 0.000 claims abstract description 4
- 239000012530 fluid Substances 0.000 claims description 19
- 230000035939 shock Effects 0.000 claims description 13
- 239000007788 liquid Substances 0.000 claims description 5
- 238000004891 communication Methods 0.000 abstract description 2
- 230000037452 priming Effects 0.000 abstract 1
- 239000003721 gunpowder Substances 0.000 description 7
- 239000011435 rock Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000000020 Nitrocellulose Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- ZOMBKNNSYQHRCA-UHFFFAOYSA-J calcium sulfate hemihydrate Chemical compound O.[Ca+2].[Ca+2].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O ZOMBKNNSYQHRCA-UHFFFAOYSA-J 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005474 detonation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920001220 nitrocellulos Polymers 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- LENZDBCJOHFCAS-UHFFFAOYSA-N tris Chemical compound OCC(N)(CO)CO LENZDBCJOHFCAS-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
- F42D1/02—Arranging blasting cartridges to form an assembly
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D3/00—Particular applications of blasting techniques
- F42D3/04—Particular applications of blasting techniques for rock blasting
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
- Portable Nailing Machines And Staplers (AREA)
- Air Bags (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
Abstract
The explosive cartridge comprises: a generally cylindrical sleeve (2) having an end wall (6) sealing a first end thereof; an end unit (3) inserted into the casing to a depth at the second end of the casing, having an inner side (4) facing the interior of the casing and an outer side (5) at the opposite side of the end unit; a chamber (7) in the sleeve between the end wall and the inside, filled with an explosive agent (8); a channel (10) extending through the end unit between an outer port (11) and an inner port (12), comprising a seat (13) for a priming cartridge (11); and a primer cartridge contained in the base and containing a primer charge for igniting the explosive agent in the chamber. At least one axially protruding spacer member (20) is arranged on the outside of the end wall (6) of the first end of the explosive cartridge and/or on the end unit of the second end of the explosive cartridge, so that when two explosive cartridges are brought into the drill hole (24) to be detonated, an intermediate space (28) is formed between the outside (5) of the first lower explosive cartridge and the underside of the end wall of the second upper explosive cartridge placed on the first explosive cartridge, and at least one passage (21) is arranged in the radial direction through the spacer member, allowing communication between the intermediate space and the surrounding space (27) in the drill hole.
Description
Technical field
The present invention relates to a kind of explosive cartridge, it comprises: columniform basically sleeve pipe, this sleeve pipe have the end wall of its first end of sealing; End unit, this end unit insert this sleeve pipe certain depth in second end of sleeve pipe, described end unit has the inboard and the outside that is in the end unit opposite side in the face of inside pipe casing; Be in the chamber between described end wall and the described inboard in sleeve pipe, described chamber is filled with burster; Extend through the passage of this end unit between collar extension and internal orifice, described passage comprises the base that is used for blasting cap; And being contained in blasting cap in this base, described blasting cap holds and is used for ignition charge that the burster of described chamber is lighted a fire." burster " this notion also comprises various gunpowder or also can be referred to as explosive.
Background technology
For the explosion of explosive cartridge (for example, entering the explosive cartridge of boring), adopt gunpowder fuse or electrical fuze usually, with the blast of the agent that sets off an explosion with the type of fractured rock.This area is well known that equally, makes boring be full of water or other liquid or semi liquid state fluid, and produces the high energy impact events ripple of shock pulse in the fluid of boring, and it directly or indirectly causes the blasting cap blast.SE 519 883 discloses a kind of explosive cartridge that is provided with via the blasting cap of striker indirect detonation, and it triggers by shock wave.In the case, blasting cap is the edge ignition-type.The shortcoming of this known explosive cartridge is, if several cartridges is piled up one above the other, always is not detonated.This is to be exposed to surrounding fluid effectively because only be positioned at the striker of the tube at stacking top, described surrounding fluid will provide necessary shock wave, so that striker causes the blasting cap blast, and then the explosive cartridge at stacking top is exploded, however the great risk that exists other explosive cartridges not to be detonated.
Also utilized the explosive cartridge that is provided with center fire type blasting cap to test,, promptly need not any striker to ignite by directly acting on by shock wave, and in other aspects that are to design according to described SE 519 883.Verified, this type of explosive cartridge has and the identical shortcoming of those explosive cartridges that comprises striker, if promptly several explosive cartridge is stacked in the boring one above the other, existence is not the danger that all explosive cartridges all are detonated.
Summary of the invention
The objective of the invention is to address the above problem.This can realize in the following manner at this, at least one axially outstanding spacer member is arranged on the end unit of the outside of end wall of explosive cartridge first end and/or explosive cartridge second end, make when two explosive cartridges are entered in the boring when to be ignited, intermediate space is formed at the outside of first time explosive cartridge and places between the downside of the end wall of explosive cartridge on second on first explosive cartridge, and at least one path of radially going up is set outside described spacer member, allow to be communicated with between the ambient in described intermediate space and the boring, make in the boring can be transferred in the described intermediate space by outer described at least one path of described spacer member, so that blasting cap is lighted a fire around the shock wave or the shock pulse that produce in the liquid of explosive cartridge or the gel fluid.Other features of the present invention and aspect are disclosed in the dependent claims and/or will become obvious by following detailed description to a plurality of embodiment that conceive.
Description of drawings
In the following description of several embodiment that conceive with reference to the accompanying drawings, in the accompanying drawing:
Fig. 1 is the side view according to the explosive cartridge of first embodiment of the invention,
Fig. 2 illustrates the end-view of the identical explosive cartridge of the line II-II in Fig. 1,
Fig. 3 illustrates the axial section by identical explosive cartridge intercepting,
Fig. 4 illustrates according to three explosive cartridges of the present invention, and they are stacked in the boring one above the other, in order to igniting,
Fig. 5 illustrates the details of Fig. 4 with vast scale more,
Fig. 6 is the side view according to the improvement embodiment of the explosive cartridge of Fig. 1-3, and
Fig. 7 illustrates another embodiment according to explosive cartridge of the present invention with its axial section.
The specific embodiment
At first with reference to Fig. 1-3, totally be expressed as 1 according to the explosive cartridge of first embodiment of the invention.Its major part comprises: the plastic bushing 2 of substantial cylindrical, and it has the end wall 6 of this sleeve pipe first end of sealing; And end unit 3, its second opposed end at tube is inserted certain depth in the sleeve pipe.According to this embodiment, end unit 3 is made by the hard relatively plastic material of monolithic.Yet, also can conceive the end unit 3 that comprises a plurality of parts compositions that form the integration end unit together.End unit 3 is pressed in the sleeve pipe, makes it against the sleeve pipe inner seal.
Central passage 10 extends through end unit 3 between collar extension 11 and internal orifice 12.The base 13 of blasting cap 14 is arranged on the inside of path 10.Blasting cap 14 anti-tidelands are arranged in the base 13.Inboard 4 certain distances of end unit are extended in the inner, and stretch in the burster 8 in the chamber 7.Blasting cap 14 comprises and is used for ignition charge that gunpowder 8 is lighted a fire.More specifically, blasting cap is the type of igniting by center fire.In order to light a fire, need not striker.But blasting cap 14 can be lighted a fire by shock wave, and this is according to feature used in the present invention, as below explaining.In fact, can adopt the blasting cap of the type that is used for shotgun shell.As among Fig. 3 obviously as seen, the shape of base 13 is adapted to the shape at the axle collar shape rear portion 15 of blasting cap.Other parts of the inside 9 of path 10 are columniform, match with the shape of the major part of blasting cap 14, and the moisture proof fit between blasting cap 14 and the end unit 3 is provided.Because the assembling between the inboard of the periphery 16 of end member 3 and sleeve pipe 2 on the one hand; and the moisture seal in the zone of the inside 9 of path 10 between blasting cap 14 and the end unit 3 on the other hand; therefore between chamber 7 and space, provide moisture seal, will keep dry to guarantee gunpowder around explosive cartridge 1.
The diameter of the most external 19 of end unit 3 is greater than the diameter of the major part of inserting the end unit in the sleeve pipe 2.The peripheral part of described most external 19 is in abutting connection with second end of sleeve pipe 3, and definite end unit 3 enters the degree of depth that enters of sleeve pipe.
According to the embodiment described in Fig. 1-3, the end unit 3 of explosive cartridge 1 explosive cartridge second end is provided with the spacer member 20 of three axial projections.According to this embodiment, spacer member 20 be shaped as generally cylindrical body, it is highly roughly corresponding to the thickness of the most external 19 of end unit 3.
In the path 10 outside, three spacer member 20 are about radially circumferentially and be arranged on the outside of end unit 3 symmetrically, and this passage comprises blasting cap 14, thereby establishing big opening such as three grades (below be also referred to as path) between the spacer member 20.
Fig. 4 illustrates three explosive cartridges 1 that are arranged on one above the other in the boring 24 in the quilt object 25 (for example, large stretch of rock) that breaks.The diameter of boring 24 is a bit larger tham explosive cartridge 1 about 10mm.Boring 24 is full of around the liquid of explosive cartridge 1 or may is gel fluid 26, is preferably water.This expression fluid be full of explosive cartridge 1 and 24 the wall of holing between space 27 and intermediate space 28, in two explosive cartridges being inserted boring 24 when to be ignited, place on first explosive cartridge by spacer member 20 explosive cartridge on formation intermediate space 28, the second between the downside of the end wall 6 of explosive cartridge on the outside 5 and second of the end unit 3 of first time explosive cartridge.Fluid 26 also is full of the outside 17 of the path 10 between described intermediate space 28 and the blasting cap 14.
In other words, opening 21 formation one side explosive cartridges 1 between the spacer member 20 and gap between the wall of a borehole 23 and the path between the described on the other hand intermediate space 28, permission is around the space of explosive cartridge and the radial communication between the described intermediate space, and also be connected thus with fluid column 29 in the outside 17 of path 10, thereby shock wave that produces in the fluid 26 or shock pulse can be by described path 21 transmission, and pass spacer member 20 and arrive intermediate space 28, also arrive the fluid column 29 that is used to light blasting cap 14 thus.In this way, be contained in the boring 24 go up most under the explosive cartridge 1 all explosive cartridges 1 all with go up most explosive cartridge and be detonated simultaneously.The device 31 that only schematically shows is arranged in the upper end of boring, to produce necessary pressure pulse in fluid.Device 31 preferably includes has for example main body of 20kg quality (substantial mass), and it comprises ignitron, and this ignitron points in the boring 24 downwards and can light a fire at a certain distance by line shutter release (wire release).Device 31 is suitably covered by unshowned explosion-proof curtain.
Fig. 6 illustrates the improvement of the explosive cartridge of describing with reference to Fig. 1-3 1.This improved explosive cartridge 1 ' have three spacer member 20, it is symmetrical arranged, and at the outboard shafts of the end wall 6 of explosive cartridge first end to outstanding, and there is not any spacer member in second end of explosive cartridge.Go up in other respects, explosive cartridge 1 ' identical with explosive cartridge 1 according to the embodiment of 1-3, and work in the same manner with explosive cartridge 1.Thereby, for explosive cartridge 1 ' the design of inside, can be with reference to above description to explosive cartridge 1.
Fig. 7 illustrates principle of the present invention put on has edge ignition-type blasting cap 14 " and explosive cartridge 1 of striker 40 "." be provided with three spacer member 20, these three spacer member 20 have and according to the identical design of the embodiment of Fig. 1-3 and be provided with in the same manner, that is, go up axially outstanding at explosive cartridge 1 " end unit 3 " for according to the present invention, explosive cartridge 1.Go up explosive cartridge 1 in other respects and " design according to the mode of describing among the SE-C-519833, its disclosure is introduced in this specification with for referencial use at this.Equally for explosive cartridge 1 "; be based upon between the explosive cartridge that piles up one above the other with the intermediate space that is communicated with around fluid in the boring that wherein accommodates explosive cartridge, wherein pressure pulse that produces in the fluid or shock wave are transferred to described intermediate space via the path between the spacer member 20.This provides breaks the safety measure required energy of striker in the short burst region 41 of reduction, is pushed ahead and blasting cap 14 " is lighted a fire to allow striker., should also be mentioned that, that " inner design does not constitute part of the present invention about this point by described SE-C-519 833 known explosive cartridges 1.Thereby, these prior art parts are not carried out any detailed description.Explosive cartridge 1 " also can be; promptly on the end wall of first end by spacer member 20 being arranged on explosive cartridge according to improving with the mode of having carried out improved explosive cartridge 1 ' identical with respect to explosive cartridge 1, and do not locate them in the outside of explosive cartridge 1 " end unit 3 of second end ".
Also can conceive other improvement within the spirit and scope of the present invention.Spacer member and/or be used for around the quantity of the path of the space of explosive cartridge and the fluid between the described intermediate space between adjacent explosive cartridge can less than or greater than three.Also can conceive the opening that the path that is used for fluid and then is used for shock wave comprises the consecutive intervals member with wheel-rim shape, described spacer member is axially outstanding at first end and/or second end of explosive cartridge.According to the another embodiment that conceives, spacer member can comprise the tongue piece that the end by sleeve pipe 2 forms, and it is axially outstanding, and is similar with crenellation.In the case, end unit is provided with the depression that is used for described tongue piece.Also can spacer member be set at the two ends of explosive cartridge.Should be appreciated that these improve some that only show by way of example in the improvement that can conceive in design of the present invention.
Claims (5)
1. explosive cartridge comprises: the sleeve pipe of substantial cylindrical (2), this sleeve pipe (2) have the end wall (6) of its first end of sealing; End unit (3), this end unit (3) insert certain depth in this sleeve pipe in second end of sleeve pipe, described end unit has the inboard (4) in the face of inside pipe casing and is in the outside (5) of the opposite side of end unit; Be in the chamber (7) between described end wall and the described inboard in sleeve pipe, described chamber is filled with burster (8); Extend through the passage (10) of this end unit between collar extension (11) and internal orifice (12), described passage comprises the base (13) that is used for blasting cap (14); And be contained in blasting cap in this base, described blasting cap holds and is used for ignition charge that the burster of described chamber is lighted a fire, it is characterized in that, at least one axially outstanding spacer member (20) is arranged on the end unit of the outside of end wall (6) of explosive cartridge first end and/or explosive cartridge second end, make when two explosive cartridges are entered in the boring (24) when to be ignited, intermediate space (28) is formed at the outside (5) of first time explosive cartridge and places between the downside of the end wall of explosive cartridge on second on first explosive cartridge, and at least one path (21) is provided with diametrically, by described spacer member, allow to be communicated with between the ambient (27) in described intermediate space and the boring, can be transferred to described intermediate space by outer described at least one path of described spacer member around the liquid of explosive cartridge or the shock wave or the shock pulse of the middle generation of gel fluid (26) in the feasible boring, so that blasting cap is lighted a fire.
2. explosive cartridge as claimed in claim 1, it is characterized in that, blasting cap be the center fire type and in described passage, be in certain depth, the rear end of this blasting cap and the outside of end unit are at a distance of certain distance, make that when described intermediate space is full of fluid the outside (17) of passage (10) is communicated with described intermediate space (28) and is full of described fluid.
3. explosive cartridge as claimed in claim 1 or 2 is characterized in that described passage and collar extension thereof are centralized positionings, and described spacer member (20) is about being radially positioned at the outside of described passage.
4. as each described explosive cartridge among the claim 1-3, it is characterized in that the height of described one or more spacer member is corresponding to being not more than half of blasting cap length, but be at least 10% of blasting cap length.
5. as each described explosive cartridge among the claim 1-4, it is characterized in that, the length of described one or more spacer member is corresponding to the length of outside that mostly is most the passage (19) between blasting cap and the end unit outside, but be at least passage described outside (17) length 10%.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE04006821 | 2004-03-18 | ||
| SE0400682A SE526830C2 (en) | 2004-03-18 | 2004-03-18 | explosive cartridge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1934408A true CN1934408A (en) | 2007-03-21 |
| CN100504280C CN100504280C (en) | 2009-06-24 |
Family
ID=32067439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005800085795A Expired - Fee Related CN100504280C (en) | 2004-03-18 | 2005-03-02 | Blasting cartridge |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US20070193467A1 (en) |
| EP (1) | EP1725827B1 (en) |
| CN (1) | CN100504280C (en) |
| AT (1) | ATE520956T1 (en) |
| AU (1) | AU2005220576A1 (en) |
| CA (1) | CA2559935A1 (en) |
| NO (1) | NO20064707L (en) |
| RU (1) | RU2006133117A (en) |
| SE (1) | SE526830C2 (en) |
| WO (1) | WO2005088236A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102226675A (en) * | 2011-06-13 | 2011-10-26 | 李光武 | Exploder for exploding high-pressure gas or/and liquid or supercritical fluid through pressurization |
| CN103267450A (en) * | 2013-05-21 | 2013-08-28 | 广东宏大爆破股份有限公司 | Waterproof high-pressure-resistant deep well blasting cartridge |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ATE506595T1 (en) | 2007-02-02 | 2011-05-15 | Mattson Inter Tool Gmbh | ROCK Blasting Cartridge and Blasting Method |
| SE533526C2 (en) | 2008-03-26 | 2010-10-19 | Jan-Aake Bengtsson | Use of a powder-laden cartridge to crack rocks |
| CN102207361A (en) * | 2011-05-12 | 2011-10-05 | 汉通建设集团有限公司 | Packaging cartridges for deep sea (deepwater) explosives and arrangement method |
| CN105157493B (en) * | 2015-09-30 | 2016-08-24 | 马卫国 | A kind of explosion expansion tube and blasting method thereof |
| DE102016211629A1 (en) * | 2016-06-28 | 2017-12-28 | Foreson International Ltd. | Preparation of rubber objects, such as old tires, with the help of explosives |
| AU2019200724B1 (en) | 2019-01-15 | 2020-05-21 | DynaEnergetics Europe GmbH | Booster charge holder for an initiator system |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2257063A (en) * | 1940-10-19 | 1941-09-23 | Heitzman Safety Blasting Plug | Blasting plug |
| FR1270627A (en) * | 1960-07-20 | 1961-09-01 | Relay spacer for blast hole loading | |
| US3092025A (en) * | 1960-08-11 | 1963-06-04 | Dow Chemical Co | Detonating device |
| US3176617A (en) * | 1962-06-11 | 1965-04-06 | Beloit Corp | Separate loading of artiliery propellant charges |
| DE1278908B (en) * | 1963-07-18 | 1968-09-26 | Rheinische Kalksteinwerke | Process for the damming of boreholes, which significantly supports the explosive effect |
| US4313380A (en) * | 1978-09-15 | 1982-02-02 | Standard Oil Company (Indiana) | Distributed charge for seismic prospecting |
| US4382410A (en) * | 1980-12-22 | 1983-05-10 | Bowling David S | Explosive blasting method and means |
| US5747723A (en) * | 1996-11-26 | 1998-05-05 | The United States Of America As Represented By The Secretary Of The Army | Modular artillery charge system |
| SE519296C2 (en) * | 1997-08-14 | 2003-02-11 | Bofors Defence Ab | The booster module |
| US6230630B1 (en) * | 1999-03-10 | 2001-05-15 | Perfect Circle Paintball, Inc. | Aerodynamic projectiles and methods of making the same |
| MXPA01012620A (en) * | 1999-06-18 | 2003-09-04 | Dynaenergetics Gmbh & Co Kg | Method for setting and igniting a charge of explosives for geological investigations and explosive device associated therewith. |
| US6487973B1 (en) * | 2000-04-25 | 2002-12-03 | Halliburton Energy Services, Inc. | Method and apparatus for locking charges into a charge holder |
| FR2812937B1 (en) * | 2000-08-14 | 2005-03-04 | Denel Proprietary Ltd | FORCE AMPLIFIER PRIMING DEVICE FOR CARTRIDGE |
-
2004
- 2004-03-18 SE SE0400682A patent/SE526830C2/en not_active IP Right Cessation
-
2005
- 2005-03-02 AT AT05711154T patent/ATE520956T1/en not_active IP Right Cessation
- 2005-03-02 EP EP05711154A patent/EP1725827B1/en not_active Not-in-force
- 2005-03-02 RU RU2006133117/03A patent/RU2006133117A/en unknown
- 2005-03-02 AU AU2005220576A patent/AU2005220576A1/en not_active Abandoned
- 2005-03-02 CA CA002559935A patent/CA2559935A1/en not_active Abandoned
- 2005-03-02 CN CNB2005800085795A patent/CN100504280C/en not_active Expired - Fee Related
- 2005-03-02 WO PCT/SE2005/000296 patent/WO2005088236A1/en active Application Filing
- 2005-03-02 US US10/592,033 patent/US20070193467A1/en not_active Abandoned
-
2006
- 2006-10-18 NO NO20064707A patent/NO20064707L/en not_active Application Discontinuation
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102226675A (en) * | 2011-06-13 | 2011-10-26 | 李光武 | Exploder for exploding high-pressure gas or/and liquid or supercritical fluid through pressurization |
| CN102226675B (en) * | 2011-06-13 | 2014-10-29 | 李光武 | Exploder for exploding high-pressure gas or/and liquid or supercritical fluid through pressurization |
| CN103267450A (en) * | 2013-05-21 | 2013-08-28 | 广东宏大爆破股份有限公司 | Waterproof high-pressure-resistant deep well blasting cartridge |
| CN103267450B (en) * | 2013-05-21 | 2015-04-29 | 宏大矿业有限公司 | Waterproof high-pressure-resistant deep well blasting cartridge |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1725827B1 (en) | 2011-08-17 |
| NO20064707L (en) | 2006-10-18 |
| EP1725827A1 (en) | 2006-11-29 |
| ATE520956T1 (en) | 2011-09-15 |
| SE0400682D0 (en) | 2004-03-18 |
| AU2005220576A1 (en) | 2005-09-22 |
| RU2006133117A (en) | 2008-04-27 |
| CN100504280C (en) | 2009-06-24 |
| SE526830C2 (en) | 2005-11-08 |
| WO2005088236A1 (en) | 2005-09-22 |
| CA2559935A1 (en) | 2005-09-22 |
| SE0400682L (en) | 2005-09-19 |
| US20070193467A1 (en) | 2007-08-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090624 Termination date: 20140302 |