EP2117744A1 - Method and mould arrangement for explosion forming - Google Patents
Method and mould arrangement for explosion formingInfo
- Publication number
- EP2117744A1 EP2117744A1 EP07856709A EP07856709A EP2117744A1 EP 2117744 A1 EP2117744 A1 EP 2117744A1 EP 07856709 A EP07856709 A EP 07856709A EP 07856709 A EP07856709 A EP 07856709A EP 2117744 A1 EP2117744 A1 EP 2117744A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- liquid
- workpiece
- gas mixture
- cavity
- filled
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
- B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
- B21D26/06—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure by shock waves
- B21D26/08—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure by shock waves generated by explosives, e.g. chemical explosives
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S72/00—Metal deforming
- Y10S72/706—Explosive
Definitions
- the invention relates to a method and a tool assembly for explosive forming with the features of the preamble of claims 1 and 13.
- the workpiece to be deformed z.
- a tube inserted into a mold and filled with water.
- a multi-electrode device for the production and ignition of oxyhydrogen gas is in an elastic container, for.
- a plastic bag packed. This is placed inside the workpiece so deep in the water, until the bag is completely below the water surface.
- oxyhydrogen gas is generated under water, which accumulates in the surrounding bag.
- a pressure wave is generated in the water, which presses the workpiece into the mold.
- this method is complicated and time-consuming.
- the invention has for its object to improve a method and a tool assembly for explosive forming of the type mentioned in that the method and the tool assembly is simplified and suitable for mass production.
- the provision of the gas mixture at least partially above the liquid surface ensures easy and rapid supply of the gas mixture.
- the gas mixture is arranged here above the liquid surface, that is, is relatively widely spaced from the workpiece to be deformed, a good deformation result can nevertheless be achieved with the method according to the invention.
- the explosion of the gas mixture and thus the formation of a detonation front takes place here above the liquid surface.
- the power or energy transfer over the phase boundary Gas-liquid away is enough good to achieve a good forming result.
- the required amount of gas can be reduced.
- burns of the workpiece are largely avoided. Due to the high cycle times in today's production processes, the mold reaches high temperatures relatively quickly.
- the liquid located in the receiving space can thus serve not only as a pressure transmission medium but also for cooling.
- the gas mixture can directly adjoin the liquid surface.
- the detonation front hits the surface of the liquid unhindered in this case, the direct application of the gas to the surface of the liquid achieves good force transmission across the gas-liquid interface.
- the receiving space can be filled via a valve with liquid. This ensures a good control of the filling process and a precise metering of the amount of liquid.
- the gas mixture can be at least partially passed through the liquid.
- higher pressures can be achieved with otherwise constant gas quantity. It has been found that the gas is in a state in which an ignition of the gas leads to a significantly higher explosion pressure as a result of passing through the liquid such as water. This also results in a higher forming pressure acting on the workpiece.
- the receiving space may at least partially extend through a preformed workpiece cavity in which the detonation front propagates.
- the detonation front propagating inside the workpiece can thus well reshape the wall of the workpiece. So can be z. B. finished tube-like work well.
- the workpiece can be filled with liquid in a workpiece holding region on which the workpiece is held in the mold. Thus, also held in the tool assembly ends of the workpiece are protected from burns. In the workpiece holding area cutting or contact points are present z. B. between the workpiece and the mold, which must keep tight during the Explosionsumform revitalizes. By covering these interface areas with liquid, the structural design of these areas can be simplified. A liquid-tight interface is easier and cheaper to produce than z. B. a gas-tight.
- the entire workpiece cavity can be completely filled with liquid.
- large areas of the workpiece are protected against burns with good power transmission.
- a remaining, liquid-free workpiece cavity can be at least partially filled with the explosive gas mixture. This ensures easy and fast filling with the gas mixture.
- a remaining, liquid-free cavity which is spaced from the introduced workpiece, at least partially filled with the explosive gas mixture.
- the receiving space can be filled by immersing the workpiece in a liquid bath with liquid.
- the liquid filling of the workpiece can be such. B. already done before the introduction of the workpiece in the receiving space of the mold. This simple way of filling ensures good cycle times.
- the liquid bath can also serve as a buffer for further workpieces.
- the ratio of explosive gas to liquid may be about 1:10 to 1:20, preferably 1: 2 to 1:15, and more preferably 1: 3 to 1:10. This ratio ensures a sufficiently large explosion force for forming and a good propagation of the detonation front also over the phase boundary.
- the ignition of the gas mixture can take place outside the workpiece cavity.
- the liquid level in the receiving space can be adapted to the production requirements. Also maximum fluid levels such. As a complete covering of the workpiece with liquid are possible.
- the arrangement of the explosive gas mixture at least partially above the liquid surface allows easy and rapid filling. At the same time a good transfer of the explosive force or the detonation front across the phase boundary is possible. Although the gas mixture is arranged here above the water surface, a good forming result is achieved.
- the gas mixture can adjoin the liquid surface directly.
- the direct and unhindered contact of the gas mixture with the liquid surface ensures good power transmission.
- the receiving space can be filled via a valve with liquid. This allows a good control of the filling process and a good dosage of the amount of liquid.
- a gas connection may be provided below the liquid surface.
- the gas mixture can be passed through the liquid into the receiving space.
- the receiving space may at least partially extend through a preformed workpiece cavity.
- the detonation front can also spread inside the workpiece.
- the workpiece may be filled with liquid in a workpiece holding region on which the workpiece is held in the mold.
- the ends of the workpiece held in the mold are also protected from burns.
- the design requirements for the tightness of lying in the tool holding area interfaces such. As the interface workpiece-forming tool, reduce. Liquid-tight interfaces are structurally easier to implement than z. B. gas-tight interfaces.
- the entire workpiece cavity may be completely filled with liquid.
- a large part of the workpiece surface is under the liquid and thus protected against burns.
- a remaining, liquid-free workpiece cavity may be at least partially filled with the explosive gas mixture. This ensures easy filling with the gas mixture.
- a remaining, liquid-free cavity which is spaced from the inserted workpiece, be at least partially filled with the explosive gas mixture.
- This cavity ensures the absorption of a sufficiently large amount of gas and thus a good explosion and propagation of the detonation front regardless of the liquid level of the receiving space.
- an ignition device may be arranged outside the workpiece cavity.
- the ignition of the gas mixture can thus be carried out independently of the liquid level in the interior of the workpiece.
- FIG. 1 shows a perspective view of a tool arrangement according to the invention according to a first embodiment of the invention
- FIG. 2 shows an enlarged, perspective sectional view through the tool arrangement according to the invention with inserted workpiece
- FIG. 3 shows a section through the tool according to the invention with inserted workpiece and liquid filling
- Figure 4 shows a section through the tool assembly according to the invention with inserted workpiece and changed liquid level according to a second embodiment of the invention
- FIG. 5 shows the tool arrangement according to the invention from FIG. 4 with a changed liquid level.
- FIG. 1 shows a perspective view of a tool arrangement 1 according to the invention in accordance with a first exemplary embodiment of the invention.
- the tool assembly 1 has in this embodiment, a mold 2 and an ignition unit 3.
- the mold 2 is formed in several parts. It consists of several mold halves 4, which are composable to the mold 2. In the closed state, that is, when all mold halves 4 are assembled, results in the interior of the mold 2, a horrkavtician 14 whose contour results in the later shape of the finished workpiece. In addition, in the contour of the molding tool 2, cutting or separating edges 29 as well as punching dies 30 can be provided in order to simultaneously cut the workpiece during the explosion forming, as shown in FIGS. 3 to 5.
- the tool cavity 14 also forms a receiving space 15 of the molding tool 2. According to the invention, the receiving space 15 is at least partially filled with a liquid, as will be explained later with reference to FIGS. 3 to 5.
- the mold 2 may also be arranged in a press 5, which keeps the mold 2 closed. The individual mold halves 4 can then z. B. by one or more stamp the press against each other.
- the ignition unit 3 has a holder 7 and an ignition tube 8 in this embodiment.
- the ignition tube 8 runs at its the mold 2 facing front end 18 conical and is mounted in the holder 7 at least in its longitudinal direction 9 slidably. It is so between a working position 10, in which the ignition tube 8 rests against a located in the mold 2 workpiece 12 or on the mold 2, and a parking position 11, in which the ignition tube 8 is spaced from the mold 2 and which here by a dashed line is indicated, movable.
- the ignition tube 8 may also have several degrees of freedom and z. B. also be displaceable transversely to its longitudinal direction 9.
- FIG. 2 shows a perspective sectional view through the tool arrangement 1 according to the invention with inserted workpiece.
- the reference symbols used in FIG. 2 designate the same parts as in FIG. 1, so that reference is made to the description of FIG. 1 in this regard.
- a workpiece 12 is inserted in the receiving space 15 of the mold 2.
- the workpiece 12 is approximately tubular and has a preformed workpiece cavity 13 in its interior.
- the contour of the mold 2, to which the workpiece 12 is adapted by forming, here is approximately like a tube.
- the mold 2 On its side facing the ignition tube 8 side 16, the mold 2 has an opening 17 which is in communication with the receiving space 15 in the interior of the mold 2 and whose edge is beveled corresponding to the front end 18 of the ignition tube 8 and so forms a contact surface 20 ,
- the ignition tube 8 is in its working position 10 in FIG. 2 and presses an edge region 19 of the workpiece 12 against the molding tool 2.
- the edge region 19 is deformed and between the two corresponding conical abutment surfaces 18, 20 the ignition tube 8 and the mold 2 clamped and thus forms a workpiece holding portion 21.
- the receiving space 15 of the tool 1 is simultaneously sealed gas-tight.
- the ignition tube 8 has in this embodiment, a valve 28, via which the receiving space 15 in the interior of the mold 2 and the workpiece cavity 13 can be filled with liquid.
- a valve 28 via which the receiving space 15 in the interior of the mold 2 and the workpiece cavity 13 can be filled with liquid.
- several valves can be provided.
- FIG. 3 shows a section through the tool arrangement 1 according to the invention with inserted workpiece 12.
- the reference symbols used in FIG. 3 designate the same parts as in FIGS. 1 and 2, so that reference is made in this regard to the description of FIGS. 1 and 2.
- the receiving space 15 of the molding tool 2 extends in this embodiment through the workpiece cavity 13.
- the receiving space 15 and the workpiece cavity 13 are filled in Figure 3 to about three quarters with a liquid 26.
- Suitable liquids include, for example, water, but also certain oils.
- Above the liquid surface 22 is an explosive gas mixture 23.
- the gas molecules are distributed in the available, liquid-free space 24. Depending on the type of gas, some gas molecules also lie directly on the liquid surface 22.
- the explosive gas mixture 23 is oxyhydrogen.
- This can consist of a hydrogen (H 2 ) -oxygen (O 2 ) mixture or also of a hydrogen (H 2 ) -air mixture.
- the gas mixture depending on the application, also targeted other gases such. B. be added with nitrogen.
- the oxyhydrogen used here is a stoichiometric gas mixture with a slight excess of hydrogen.
- the hydrogen content may be in a range of about 4 to 76%. Alternatively, however, another explosive gas mixture could also be used.
- a connection 25 for introducing the explosive gas mixture and an igniter 27 are provided for igniting the explosive gas mixture.
- Age- natively can also be several gas connections 25, z. B. for each type of gas, be provided in the ignition tube 8.
- one or more gas connections 25 can also be provided in the molding tool 2, as shown in FIG.
- FIG. 4 shows a section through a tool arrangement 1 according to the invention in accordance with a second exemplary embodiment of the invention.
- the reference numerals used in Figure 4 designate the same parts as in Figures 1 to 3, so that reference is made in this regard to the description of Figures 1 to 3.
- the receiving space 15 and the workpiece cavity 13 is completely filled with the liquid.
- the explosive gas mixture 23 is above the liquid surface 22.
- the gas connection 25 is located in this embodiment below the liquid surface 22. He is here in one of the mold halves 4 is arranged.
- FIG. 5 shows a section through the tool arrangement 1 according to the invention from FIG. 4 with a changed liquid level.
- the reference numerals used in Figure 5 denote the same parts as in Figures 1 to 4, so that in this regard reference is made to the description of Figures 1 to 4.
- the workpiece cavity 13 is completely filled with liquid 26 here. Also, the workpiece holding portion 21 is covered by the liquid.
- This has the advantage that the Thomasl. Contact points, which are in this area z. B. the interface between the workpiece 12 and the mold 2 but also the interface between the workpiece 12 and the ignition tube 8, liquid-tight can be formed. As a result, z. B. the structural design of these interface areas simplified or the contact pressure of the ignition tube 8 can be reduced.
- the explosive gas mixture 23 is here also above the liquid surface 22, namely in the remaining, liquid-free cavity 24. This is at the liquid level shown here completely within the ignition tube 8. That is, the explosive gas mixture 23 and the cavity 24, in which it is located at such a high liquid level of the workpiece 12 spaced apart.
- the ignition tube 8 is in its parking position 11.
- the mold 2 is opened, in which at least one of the mold halves 4 is spaced from the remaining mold halves.
- the workpiece 12 is introduced into the receiving space 15 of the mold 2.
- the mold 2 is closed again, in which all mold halves 4 of the mold 2 are joined together.
- the edge region 19 of the workpiece 12 extends into the opening 17 of the molding tool 2, as shown in FIG.
- the ignition tube 8 is moved along its longitudinal direction 9 from the parking position 11 into the working position 10.
- the front, conical end 18 dese ignition tube 8 comes into contact with the edge portion 19 of the workpiece 12 and deforms it to a workpiece holding portion 21 until it rests against the conical contact surface 20 of the mold 2.
- the ignition tube 8 presses the workpiece holding region 21 against the contact surface 20 with a predetermined force. This can lead to an additional deformation of the workpiece holding region 21, as shown in FIG.
- the receiving space 15 is sealed gas-tight at the same time.
- the receiving space 15 which corresponds approximately to the workpiece cavity 13 in the exemplary embodiments shown here, is filled with a certain amount of liquid 26, for example water.
- the liquid 26 collects in the workpiece cavity 13 and forms a liquid surface 22.
- the remaining, liquid-free cavity 24 is filled with a certain amount of the explosive gas mixture 23.
- the ratio of explosive gas to liquid is in the range of 1: 1 to 1:20.
- Gas-liquid ratios in the range from 1: 2 to 1:15 have proven to be advantageous, where at a ratio in the range of 1: 3 to 1:10 is particularly favorable.
- a gas-liquid ratio of 1: 7 is desirable.
- the gas pressure before the explosion molding is in the range of about 60 to 200 bar, advantageously in the range of 70 to 120 bar and in particular in the range of 95 to 105 bar, or 110 to 130 bar.
- the amount of liquid or the liquid level can be varied as shown in Figures 3 to 5.
- the volume and the position of the remaining, liquid-free cavity 24 changes as a result of the relatively low liquid level in FIG. 3, the cavity 24 or the gas mixture 23 extends z. B. from the workpiece cavity 13 over the workpiece holding portion 21 away into the ignition tube 8 into it.
- the entire receiving space 15 is filled with liquid 26.
- the explosive gas mixture 23 or the remaining, liquid-free cavity 24 extends here only in the tool holding region 21 and into the ignition tube 8.
- the liquid-free cavity 24 is located only in the ignition tube 8 and is thus at a distance from the workpiece 12.
- the volume of the free cavity 24 can be in a range of approximately one-half liter up to ten liters. Cavities 24 with a volume of about one-half to four liters have proven to be advantageous in practice, with a void volume of about one to two liters is particularly economical.
- the explosive gas mixture 23, which is located in the cavity 24 is ignited.
- the oxygen present in the explosion is approximately completely burned or converted. This is to counteract corrosion of the workpiece and the tool or the entire system.
- Zündmechanismen come here in principle the usual, z. B. known from the prior art ignition mechanisms in question.
- the resulting detonation front initially spreads in the gas mixture 23 or the cavity 24 and then impinges on the phase boundary, namely the liquid surface 22. In this case, about four fifths of the energy or the force of the detonation front are transferred to the liquid.
- the direct contact between the gas mixture 23 and the liquid 26, without additional intermediate components, ensures a relatively good Power transmission.
- the pressure wave delivered to the liquid 26 continues in this and thus presses the workpiece 12 into the cavity 14 of the molding tool 2.
- the workpiece holding region 21 is separated from the remainder of the formed workpiece 12 by means of the separating edge 29 provided in the molding tool 2.
- the forming pressure achieved in this case is in the filled in this embodiment amount of gas of about one liter and at the prevailing outlet pressure of about 100 bar at about 2000 to 2500 bar.
- the liquid 26 covers large areas of the workpiece 12 and protects them from burns. If 4 cutting or separating edges 29 are provided in the mold to simultaneously cut the workpiece 12 during forming, the quality of these edges is improved by the transfer of pressure by means of liquid. The edge quality of holes that can be punched during forming is also improved.
- a further advantage of the liquid filling is the simplification of the interfaces in the workpiece holding region 21 and / or between the individual mold halves 4. Here, as shown in FIGS. 3 to 5, they lie below the liquid surface 22 and are therefore only liquid-tight. The liquid filling also reduces the amount of gas required in comparison to explosion forming without liquid filling.
- the liquid filling takes place via a valve 28 in the ignition tube 8, since this is an approximately straight, tubular workpiece 12.
- the liquid filling of the workpiece cavity 13 can also take place via an immersion bath.
- This is particularly suitable for workpieces which are suitable by their shape to absorb liquid, eg. B. for curved or warmthe ⁇ artig shaped workpieces.
- Such workpieces can, for. B. preformed from bar stock and then transported in a liquid bath, for example, a water bath. Here they are dipped depending on the desired amount of liquid before they are inserted into the mold 2.
- Such a liquid bath can simultaneously z. B. as Serve production buffer in which a certain number of preformed and liquid-filled workpieces 12 can be stored before they are inserted into the mold 2.
- the filling with the gas mixture 23 does not necessarily have to take place via one or more connections 25 in the ignition tube 8.
- the gas mixture 23 may also be introduced below the liquid surface according to the second embodiment of the invention, for. Example, by one or more gas ports 25 in the mold 2, as shown in Figure 4. In this case, the gas 23 introduced below the liquid surface rises through the liquid 26 and collects in the liquid-free cavity 24.
- the ignition takes place here via the ignition device 27.
- the ignition can be done after all the gas has collected 23 in the cavity 24 or even if the gas mixture 23 is still at least partially in the liquid 26.
- the introduction of the gas 23 through a liquid 26, such as water through has the advantage that despite the same amount of gas, a higher forming pressure can be achieved. Depending on the workpiece and the amount of gas or liquid filled, an increase of the forming pressure up to four times the value is possible.
- the tool cavity 13 is filled with liquid.
- liquid This is particularly suitable for tubular workpieces and has proven to be advantageous in practice.
- the liquid may also be located outside of the workpiece cavity 13 in the receiving space 15.
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007007330A DE102007007330A1 (en) | 2007-02-14 | 2007-02-14 | Method and tool assembly for explosion forming |
PCT/EP2007/010966 WO2008098608A1 (en) | 2007-02-14 | 2007-12-13 | Method and mould arrangement for explosion forming |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2117744A1 true EP2117744A1 (en) | 2009-11-18 |
EP2117744B1 EP2117744B1 (en) | 2018-09-26 |
Family
ID=39110763
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07856709.6A Not-in-force EP2117744B1 (en) | 2007-02-14 | 2007-12-13 | Method and mould arrangement for explosion forming |
Country Status (11)
Country | Link |
---|---|
US (1) | US8875553B2 (en) |
EP (1) | EP2117744B1 (en) |
JP (1) | JP5583412B2 (en) |
KR (1) | KR20090122442A (en) |
CN (1) | CN101622085B (en) |
AU (1) | AU2007346789A1 (en) |
CA (1) | CA2680322A1 (en) |
DE (1) | DE102007007330A1 (en) |
EA (1) | EA016721B1 (en) |
MX (1) | MX2009008694A (en) |
WO (1) | WO2008098608A1 (en) |
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DE102005025660B4 (en) | 2005-06-03 | 2015-10-15 | Cosma Engineering Europe Ag | Apparatus and method for explosion forming |
DE102006037742B4 (en) | 2006-08-11 | 2010-12-09 | Cosma Engineering Europe Ag | Method and apparatus for explosion forming |
DE102006037754B3 (en) | 2006-08-11 | 2008-01-24 | Cosma Engineering Europe Ag | Procedure for the explosion forming, comprises arranging work piece in tools and deforming by means of explosion means, igniting the explosion means in ignition place of the tools using induction element, and cooling the induction element |
DE102006056788B4 (en) | 2006-12-01 | 2013-10-10 | Cosma Engineering Europe Ag | Closing device for explosion forming |
DE102006060372A1 (en) | 2006-12-20 | 2008-06-26 | Cosma Engineering Europe Ag | Workpiece for explosion reformation process, is included into molding tool and is deformed from output arrangement by explosion reformation |
DE102007007330A1 (en) | 2007-02-14 | 2008-08-21 | Cosma Engineering Europe Ag | Method and tool assembly for explosion forming |
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DE102007023669B4 (en) | 2007-05-22 | 2010-12-02 | Cosma Engineering Europe Ag | Ignition device for explosion forming |
DE102007036196A1 (en) | 2007-08-02 | 2009-02-05 | Cosma Engineering Europe Ag | Apparatus for supplying a fluid for explosion forming |
US9636736B2 (en) * | 2007-12-13 | 2017-05-02 | Cosma Engineering Europe Ag | Method and mould arrangement for explosion forming |
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- 2007-02-14 DE DE102007007330A patent/DE102007007330A1/en not_active Ceased
- 2007-12-13 JP JP2009549782A patent/JP5583412B2/en not_active Expired - Fee Related
- 2007-12-13 WO PCT/EP2007/010966 patent/WO2008098608A1/en active Application Filing
- 2007-12-13 MX MX2009008694A patent/MX2009008694A/en active IP Right Grant
- 2007-12-13 KR KR1020097019011A patent/KR20090122442A/en not_active Application Discontinuation
- 2007-12-13 EP EP07856709.6A patent/EP2117744B1/en not_active Not-in-force
- 2007-12-13 EA EA200901069A patent/EA016721B1/en not_active IP Right Cessation
- 2007-12-13 CA CA002680322A patent/CA2680322A1/en not_active Abandoned
- 2007-12-13 CN CN200780051389.0A patent/CN101622085B/en active Active
- 2007-12-13 US US12/447,727 patent/US8875553B2/en active Active
- 2007-12-13 AU AU2007346789A patent/AU2007346789A1/en not_active Abandoned
Non-Patent Citations (1)
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See references of WO2008098608A1 * |
Also Published As
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CA2680322A1 (en) | 2008-08-21 |
EA016721B1 (en) | 2012-07-30 |
US8875553B2 (en) | 2014-11-04 |
KR20090122442A (en) | 2009-11-30 |
EA200901069A1 (en) | 2010-06-30 |
WO2008098608A1 (en) | 2008-08-21 |
MX2009008694A (en) | 2009-11-02 |
DE102007007330A1 (en) | 2008-08-21 |
AU2007346789A1 (en) | 2008-08-21 |
JP5583412B2 (en) | 2014-09-03 |
EP2117744B1 (en) | 2018-09-26 |
CN101622085A (en) | 2010-01-06 |
US20100206034A1 (en) | 2010-08-19 |
AU2007346789A2 (en) | 2010-01-28 |
JP2010517791A (en) | 2010-05-27 |
CN101622085B (en) | 2015-10-14 |
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