EP2243000A1 - Dosing device for a powdery or paste-type product to be dosed - Google Patents
Dosing device for a powdery or paste-type product to be dosedInfo
- Publication number
- EP2243000A1 EP2243000A1 EP08872328A EP08872328A EP2243000A1 EP 2243000 A1 EP2243000 A1 EP 2243000A1 EP 08872328 A EP08872328 A EP 08872328A EP 08872328 A EP08872328 A EP 08872328A EP 2243000 A1 EP2243000 A1 EP 2243000A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- dosing
- outlet
- rotor
- dosing head
- head
- 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.)
- Withdrawn
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F13/00—Apparatus for measuring by volume and delivering fluids or fluent solid materials, not provided for in the preceding groups
- G01F13/001—Apparatus for measuring by volume and delivering fluids or fluent solid materials, not provided for in the preceding groups for fluent solid material
- G01F13/005—Apparatus for measuring by volume and delivering fluids or fluent solid materials, not provided for in the preceding groups for fluent solid material comprising a screw conveyor
Definitions
- Dosing device for powdered or paste-like dosage material for powdered or paste-like dosage material
- the present invention relates to a metering device for powdered or pasty Dosiergut.
- Such metering devices find particularly when dosing small amounts, such as toxic substances, with high precision in small target vessels
- target vessels are placed on a balance in order to weigh the amount of substance discharged from the metering device, so that it can subsequently be further processed as intended.
- EP 0 527 976 B1 describes a metering device which has a housing with a receiving space for metered product and a metering head made of elastic material.
- the dosing formed in the manner of a baby bottle pacifier has a slot-shaped outlet, which can be opened from the outside by lateral force or pressure from two opposite directions. So that no powder bridges can arise during the discharge of dosing material, these powder bridges can be destroyed with a needle-shaped actuator.
- the dosing device disclosed in EP 0 527 976 B1 has the disadvantage that it is only suitable for readily flowable dosing goods such as liquids, granules or special powders with approximately spherical particles having a smooth surface. As soon as other powders are to be dosed, which are sticky or the particles get caught in each other due to their shape, the use of the actuator also does not help much.
- the housing of the dosing unit can also be made of an elastic plastic, which likewise can be laterally compressed like the slot-shaped outlet. By squeezing the Dosiergut is displaced in the receiving space and pressed out of the open outlet.
- the object of the present invention is therefore to provide a metering device with an existing of elastic material dosing, which allows a precise and contamination-safe dispensing of dosage regardless of its flowability.
- the metering device according to the invention which can be used for pulverulent or paste-like dosage material, comprises a housing with at least one receiving space formed in the housing for receiving metered material. Furthermore, the dosing device has at least one dosing head having elastic material with an outlet for the dosing material. In the unloaded state, ie without mechanical force or pressure, the outlet is sealed against the outside. When loaded by a force or by a pressure, the outlet opens, whereby the degree of opening varies depending on the load. Furthermore, at least one, relative to the housing and along its longitudinal axis linearly displaceable, mechanical actuating element is arranged in the receiving space and / or in the dosing.
- a load can be generated on the outlet or on the dosing head at least from the direction of the receiving space toward the outlet.
- the metering device according to the invention is thus distinguished by the fact that the outlet can be opened from the inside with the aid of the at least one actuating element.
- the term inside always means the interior of the metering device, in particular that delimited by the housing and the metering head Recording space to understand. Since the dosing comprises elastic material, no further openings, slots, gaps, joints, joints and the like are necessary except the outlet.
- the outlet is preferably formed in the elastic material of the dosing.
- This elastic material may consist of a material, but also of different materials, so-called composite materials. These composites may be, for example, plastics provided with fillers or even plastic-metal composite materials, but also different plastics with different degrees of hardness can be combined to form composites. Furthermore, the elastic material may also have parts with different material thicknesses. By means of composite materials and the design possibilities with respect to the material thicknesses, a dosing head can be optimally adapted to the properties of the dosing material and to the dosing device.
- actuating element and the elastic dosing head and a mechanical coupling of the two elements can be present.
- the mechanical coupling of the two elements allows a dependent of a linear displacement of the actuator positive control of the
- Outlet section By means of this forced control, the outlet cross section of the outlet and thus the discharge quantity of the metered material can be controlled very precisely.
- a mechanical coupling can be achieved in that, for example, the actuating element has a coupling ring which is at least partially surrounded by parts formed on the dosing head, for example stiffening ribs, webs, projections, beads and the like.
- the coupling ring itself may have different configurations, which support the passage of metered material through the outlet.
- the coupling ring may have a sawtooth or wavy profile. If the coupling ring is rotatably arranged to the dosing, the profile of the - A -
- Coupling ring for example, tapped by webs of the dosing, as soon as the coupling ring and the webs touch. This makes it possible to generate oscillating movements in the area of the outlet on the dosing head.
- the outlet of the dosing head which opens as mentioned above under force and / or pressure of the actuating element, is advantageously in the form of one or more slots which are closed in the unloaded state and open under force or pressure.
- a plurality of slots may be arranged radiant or star-shaped starting from a central point of intersection.
- At least one mechanical conveying means can be arranged in the receiving space and / or in the dosing head of the dosing device. Through this conveyor dosing can be promoted against the outlet.
- powder bridge is well known and designates the behavior of bulk materials in silos whose outlet is located in the bottom area. During the discharge of bulk material in the bottom area, the individual particles can wedge into each other and form bridges in the silo, so that no bulk material can flow to the outlet.
- the at least one mechanical conveying means may, for example, comprise at least one rotor and one stator, the stator having an inner wall of the
- Receiving space and / or the dosing head is firmly connected and the at least one rotor is rotatable relative to the stator about its axis of rotation.
- the mechanical conveying means comprises an inner rotor and an outer rotor arranged coaxially and preferably counter-rotating outer rotor and optionally a stator.
- the mechanical conveying means comprises a rotor, or an inner rotor and an outer rotor
- the rotor, or the inner and / or outer rotor may have a screw conveyor, or at least individual sections may be formed as a screw conveyor or equipped with blades.
- a screw conveyor is often referred to as a screw conveyor or Archimedean screw.
- the axis of rotation of the rotor, or of the inner and / or the outer rotor along the central longitudinal axis of the dosing and / or the receiving space is arranged.
- the at least one mechanical actuating element is part of the at least one conveying means, its central longitudinal axis is advantageously also arranged along the central longitudinal axis of the dosing head and / or the receiving space.
- the mechanical conveying means in its function of advancing dosing material located in the receiving space and / or in the dosing head towards the outlet, can be additionally assisted in that the rotor or the inner and / or outer rotor can be displaced linearly along its axis of rotation.
- the rotor has the shape of a screw conveyor, which rotates in a cylindrical receiving space with a smooth inner wall, so there
- the stator mentioned above has the task of counteracting this tendency and includes suitable elements which are fixedly connected to the inner wall or arranged stationary to the inner wall.
- the stator may have at least one lamination and / or at least one projection.
- the term slat for example, grooves created by grooves, but also ribs, baffles and webs are to be understood.
- the term protrusions includes bulges of all kinds, for example tetrahedral projections or the dimpled knurled surfaces.
- the lamellae, protrusions or nubs can be made of inelastic as well as of elastic materials.
- the lamellae, projections or nubs may also be arranged to be movable relative to the inner wall, so that they rest against the inner wall in a direction of rotation of the rotor and erect in the opposite direction of rotation of the rotor.
- the at least one lamella extends in its longitudinal extent in a straight line and parallel to the central longitudinal axis of the dosing head and / or the receiving space.
- the at least one lamella is arranged in a thread shape around the central longitudinal axis of the dosing head and / or the receiving space.
- the actuating element along its central longitudinal axis (A) is linearly displaceable. Furthermore, an additional closing spring acting in Schliessee the outlet on the actuator.
- the closing spring can support the self-closing, elastic behavior of the dosing head, provided that the dosing head and the actuating element are coupled together. Furthermore, a higher security against unintentional opening of the outlet can be obtained by means of the closing spring.
- both the rotation and optionally the linear movement of the rotor or the inner and / or outer rotor can be done both with constant as well as with changing sense of direction.
- the rotor can also be covered with a superimposed on the rotational movement and / or linear motion vibration. This makes it possible to prevent or at least prevent sticking of the dosing material to the rotor and stator.
- the opening lips of the outlet can be set in vibration. This is also the case when the actuating element is subjected to a vibration whose amplitudes extend in the direction of the central longitudinal axis. They are also mutually exclusive
- FIG. 1 shows a metering device according to the invention in section with a housing, a membrane-shaped dosing head, a mechanical conveying means and with a mechanical actuating element;
- FIG. 2a shows a first embodiment of a membrane-shaped dosing head with a slot-shaped outlet and with two stiffening ribs
- FIG. 2b shows a second embodiment of a membrane-type dosing head with a star-shaped outlet and with three stiffening ribs
- Figure 3 shows a further embodiment of a metering device according to the invention in section with an inner rotor and an outer rotor and with a forcibly controlled by the mechanical actuator outlet;
- FIG. 4 shows a third embodiment of a metering device according to the invention in section with a further embodiment of the mechanical
- the dosing device 1 shown in Figure 1 has a two-part housing, consisting of an upper housing part 2 and a lower housing part 4, which enclose a corresponding two-part receiving space 3, 5 for receiving a dosing. So that these can be connected to one another, the upper housing part 2 and the lower housing part 4 have connecting regions 6 and 7 shown schematically, wherein a seal 8 is arranged between the connecting regions 6 and 7.
- a dosing head 9 made of elastic material is tightly connected, which has a slot-shaped outlet 10, which is shown open. Refer to terms such as "upper part” and "lower part” in the present context always on the position of the parts to the direction of gravity.
- the dosing head 9 is designed as a flat, elastic diaphragm whose edge has a circumferential annular bead 19. This annular bead is positively caught in a formed between the lower housing part 5 and a retaining ring 20 annular groove. This can avoid that the membrane-shaped dosing head 9 is not torn out of its anchorage under a load. Furthermore, a certain tension can be imposed on the membrane-shaped dosing head 9 by means of this embodiment, so that the slot-shaped outlet 10 does not open under the slightest load, for example when filling the lower part of the receiving space 5.
- the metering device 1 has a mechanical conveying means with a rotor and a stator.
- the rotor is a screw conveyor with a helical conveying surface 1 1, which is rotatably connected to a rotor shaft 12.
- the stator is firmly connected to the lower housing part 4.
- the stator essentially comprises arranged on the inner wall 14 of the housing base, lamellar, parallel to each other and the rotor shaft 12 arranged longitudinal ribs 13.
- the rotor is in the housing by the bearing of the rotor shaft 12 in the bearing 15 of the housing upper part 2 and by the sliding contact between the outer edge the helical conveying surface 1 1 and the lamellar longitudinal ribs 13 in the lower housing part 4, rotatably guided and axially displaceable.
- the rotary arrow 16 at the upper end of the rotor shaft 12 shows the direction of rotation of the rotor during operation of the metering device 1, whereby in a screw-shaped conveying surface 1 1 surrounding dosing a downwardly directed conveying effect is generated.
- the rotor shaft 12 is displaceable along its central longitudinal axis A, similar to a piston, also dosing with a stationary rotor shaft 12 can be pressed out of the outlet 10 when it is pushed against the outlet 10.
- This vertical mobility in conjunction with a suitable drive, which is not shown, can also be used to superimpose a vertical vibration or shaking motion on the rotational movement of the rotor, which is the Aufkling the Dosierguts serves and counteracts the clogging of the conveyor with pappigem Dosiergut.
- a mechanical actuating element 18 is connected to the rotor shaft 12. This mechanical actuator 18 is linearly displaced to open the outlet along its central longitudinal axis and towards the outlet. As soon as the dosing head 9 and the actuating element 18 touch, the opening process of the outlet 10 can begin. To close the outlet 10, the actuator 18 is moved away from the outlet 10 linearly.
- FIG. 2 a shows a first embodiment of a membrane-shaped metering head 34 with a slot-shaped outlet 35 and with two stiffening ribs 36.
- the membrane-shaped dosing head 34 is delimited by an annular bead 39 in its areal extent.
- the stiffening ribs 36 serve to stiffen the membrane-shaped metering head 34 in the region of the outlet, so that unintentional opening of the outlet 35 can be avoided.
- the stiffening ribs 36 can also serve as defined support points for the mechanical actuating element shown in FIG.
- the stiffening ribs 36 may be formed integrally on the dosing head 34. But they can also be made of one or more other, for example less elastic materials consisting connected to the dosing 34.
- the membrane-shaped dosing 34 also have different thicknesses, as with the
- the dosing head 34 as mentioned above, also consist of composite materials.
- the embodiment of a membrane-shaped dosing head 64 shown in FIG. 2b differs from the previously described embodiment only in that, instead of a slit-shaped outlet, one of three star-shaped ones arranged slots formed outlet 65 is present.
- the annular bead 69 corresponds to the annular bead in the embodiment described above.
- the star-shaped outlet 65 is stiffened by three stiffening ribs 66 formed on the metering head 64.
- Each stiffening rib 66 has a recess 67.
- Figure 2b is intended to show that the design of the outlet is not limited to a slot-shaped outlet, but that any number of slots can be formed.
- the annular bead 69 can be formed arbitrarily high in a direction orthogonal to the areal extent of the dosing head 64 direction, whereby cup-shaped dosing heads 64 are created, which are also used in the inventive dosing.
- the dosing head known elastic materials such as soft PVC, PP, PE, silicone, and synthetic or natural rubber can be used. Furthermore, it is also possible to use further materials for the membrane-shaped dosing head, which are not suitable, for example, for a dosing head as disclosed in EP 0 527 976 B1. A membrane-shaped dosing head would also be made, for example, from the materials PTFE, hard polyethylene, POM or even very thin metal.
- FIG. 3 shows a metering device 101 with an inner rotor and an outer rotor.
- One recognizes an upper housing part 102, a lower housing part 103 and a dosing head 104, which together enclose a receiving space 106 for the dosing material.
- the dosing head 104 whose star-shaped outlet 105 is shown open, corresponds in its embodiment essentially to the dosing head shown in FIG. 2b.
- the inner rotor is a screw conveyor with a helical conveying surface 107, which is fixedly connected to the inner rotor shaft 108.
- the outer rotor has a helical conveying surface 109, which fixed with the outer rotor shaft 1 10 connected is.
- the outer rotor shaft 1 10 is formed as a hollow shaft, which can rotate in the upper housing part 102 in a bearing 1 1 1.
- the inner rotor shaft 108 is rotatably mounted in the tubular outer rotor shaft 1 10.
- the conveying surface 107 is shown as a left-hand screw and the conveying surface 109 as a right-hand screw, that is, the conveying surfaces 107 and 109 are in their
- the conveying surface 109 of the outer rotor has at its lower end a projecting against the inner rotor shaft 108 extension 1 15, which is connected to a rotatably mounted on the inner rotor shaft 108 shaft bearing 1 16.
- the inner rotor shaft 108 is formed as a hollow shaft.
- an actuating rod 1 19 is guided linearly displaceable.
- a mechanical actuator 1 18 is arranged at the lower end of the actuating rod 1 19, a mechanical actuator 1 18 is arranged.
- a coupling ring 120 of the actuating element 1 18 engages in the recesses of the stiffening ribs 167 described in FIG. 2b so that the dosing head 104 is mechanically coupled to the actuating element 18. If the stiffening ribs 167 are made of an inelastic material, it is clear that at least the actuating element 1 18 can not rotate with the inner rotor 108, otherwise the dosing head 104 or at least
- Stiffening ribs 167 would be destroyed. If, however, the stiffening ribs 176 are made of an elastic material, oscillating movements in the region of the outlet 105 can be generated by a rotation of the actuating element 118 or through its supports 121 by interaction with the stiffening ribs 167. By indicated by the double arrow 1 17 linear displaceability of the actuating rod 1 19 and by the coupling of the actuating element 1 18 with the dosing head 104, the outlet 105 can be positively controlled.
- the coupling ring 120 and the stiffening ribs 167 may also be configured such that relative rotational movement can take place between the actuating element 118 and the metering head 104 without acting on the stiffening ribs 167 with the ribs 121.
- the coupling ring 120 itself can have different configurations, which support the passage of Dosiergut through the outlet 105.
- the coupling ring 120 may have a sawtooth or wavy profile.
- the profile of the coupling ring 120 is tapped, for example, by the reinforcing ribs, whereby oscillating movements in the region of the outlet 105 on the dosing head 104 can also be produced.
- the individual closing flaps of the star-shaped outlet 105 do not necessarily have to move synchronously in the same direction.
- a closing spring 1 12 can be arranged between the actuating rod 1 19 and the inner rotor shaft 108 in such a way that this closing spring 1 12 acts on the actuating rod 1 19 in a closing direction of the outlet 105 exercises.
- closing spring 1 12 the self-closing, elastic behavior of the dosing head 104 can be supported. Furthermore, by means of the closing spring 1 12 a higher security against unintentional opening of the outlet 105 can be obtained.
- FIG. 4 shows a metering device 201 with a rotor and a stator.
- the housing of the metering device 201 comprises an upper housing part 202 and a lower housing part 203 and a metering head 204 with a slot-shaped outlet 205, which together enclose a receiving space 206 for the metered.
- the rotor consisting of a rotor shaft 207 with conveying blades 208, which are comparable in shape and arrangement with turbine blade rings, is rotatably guided in the housing and simultaneously held in the axial direction by the bearing of the rotor shaft 207 in the bearing 212 of the housing upper part 202.
- the stator consists here of the lower housing part 203 which is provided on its inner wall 209 with radially inwardly directed and also arranged in the form of several rings steering surfaces 210 in such a way that in each case a ring of steering surfaces 210 in the space between two rings of conveying blades 208 engages.
- the conveyor blades 208 mesh through the vertical spaces between the steering surfaces 210 of the stator.
- the inclined position of the conveyor blades 208 and the steering surfaces 210 results in a correspondingly directed rotation of the rotor again a downward conveying effect.
- the rotary arrow 211 at the upper end of the rotor shaft 207 shows the direction of rotation of the rotor during operation of the metering device 201, as a result of which the metered material located in the receiving space 206 experiences a downwardly directed conveying action.
- the rotor shaft 208 from FIG. 4 is also designed as a hollow shaft.
- an actuating rod 219 is guided linearly displaceable.
- a mechanical actuator 218 is arranged at the lower end of the actuating rod 219.
- the opening cross section of the outlet 105 can be varied.
- the rate of discharge can be controlled not only by the opening area, but also by varying the rotor speed.
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
- Coating Apparatus (AREA)
- Medicinal Preparation (AREA)
- Automatic Analysis And Handling Materials Therefor (AREA)
- Accessories For Mixers (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP08872328A EP2243000A1 (en) | 2008-02-11 | 2008-10-03 | Dosing device for a powdery or paste-type product to be dosed |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP08151259A EP2088404A1 (en) | 2008-02-11 | 2008-02-11 | Metering device for metered material in powder or paste form |
EP08872328A EP2243000A1 (en) | 2008-02-11 | 2008-10-03 | Dosing device for a powdery or paste-type product to be dosed |
PCT/EP2008/063267 WO2009100782A1 (en) | 2008-02-11 | 2008-10-03 | Dosing device for a powdery or paste-type product to be dosed |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2243000A1 true EP2243000A1 (en) | 2010-10-27 |
Family
ID=39539615
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08151259A Withdrawn EP2088404A1 (en) | 2008-02-11 | 2008-02-11 | Metering device for metered material in powder or paste form |
EP08872328A Withdrawn EP2243000A1 (en) | 2008-02-11 | 2008-10-03 | Dosing device for a powdery or paste-type product to be dosed |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08151259A Withdrawn EP2088404A1 (en) | 2008-02-11 | 2008-02-11 | Metering device for metered material in powder or paste form |
Country Status (5)
Country | Link |
---|---|
US (1) | US8281959B2 (en) |
EP (2) | EP2088404A1 (en) |
JP (1) | JP5301570B2 (en) |
CN (1) | CN101946164B (en) |
WO (1) | WO2009100782A1 (en) |
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GB201011491D0 (en) * | 2010-07-08 | 2010-08-25 | 3P Innovation Ltd | Powder doser |
DE102012205326B4 (en) * | 2012-04-02 | 2024-06-06 | Syntegon Technology Gmbh | Device for dosing a product and method for cleaning/sterilising the device |
US8920364B2 (en) | 2013-02-28 | 2014-12-30 | Medtronic Xomed, Inc. | Biomaterial delivery device |
US8845578B2 (en) | 2013-02-28 | 2014-09-30 | Medtronic Xomed, Inc. | Biomaterial delivery device |
CN104224536B (en) * | 2013-06-10 | 2018-10-09 | 富士胶片株式会社 | Interior plug and the container equipped with interior plug |
PL2829851T3 (en) | 2013-07-22 | 2017-08-31 | Mettler-Toledo Gmbh | Metering head |
DE102013110991B3 (en) * | 2013-10-02 | 2014-11-13 | Lemken Gmbh & Co. Kg | Dosing system of an agricultural distribution machine |
DE102015201840A1 (en) * | 2015-02-03 | 2016-08-04 | Alfons Tschritter Gmbh | Dosing process and dosing device for bulk material particles |
CN105170013A (en) * | 2015-11-11 | 2015-12-23 | 德清县维康生物科技有限公司 | Powder stirring rod |
CN106394952A (en) * | 2016-06-13 | 2017-02-15 | 江苏楷益智能科技有限公司 | Small quantitative charging machine |
CN106140027B (en) * | 2016-08-19 | 2018-06-26 | 黄国镇 | A kind of reaction kettle quantitative liquid feeding device and its application method |
US11596179B2 (en) | 2017-04-11 | 2023-03-07 | Altria Client Services Llc | Aerosol-generating devices |
JP7222913B2 (en) | 2017-04-11 | 2023-02-15 | フィリップ・モーリス・プロダクツ・ソシエテ・アノニム | aerosol generator |
CN107692313B (en) * | 2017-09-15 | 2021-03-19 | 广东中烟工业有限责任公司 | Tobacco pipe capable of self-heating |
GB201721065D0 (en) * | 2017-12-15 | 2018-01-31 | Ondosis Ab | Delivery device for drug pellets |
GB201908810D0 (en) * | 2019-06-19 | 2019-07-31 | Ondosis Ab | Delivery device for drug pellets |
CN112706965B (en) * | 2020-12-15 | 2022-10-11 | 江西倍得力生物工程有限公司 | Taihe black-bone chicken pot can layered canning equipment |
US11858673B2 (en) | 2021-09-03 | 2024-01-02 | Altria Client Services Llc | Doser mechanisms |
CN115489772B (en) * | 2022-11-21 | 2023-02-24 | 泉州逆鳞科技有限公司 | Automatic quantitative powder packaging machine |
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-
2008
- 2008-02-11 EP EP08151259A patent/EP2088404A1/en not_active Withdrawn
- 2008-10-03 CN CN2008801265534A patent/CN101946164B/en not_active Expired - Fee Related
- 2008-10-03 JP JP2010545364A patent/JP5301570B2/en not_active Expired - Fee Related
- 2008-10-03 WO PCT/EP2008/063267 patent/WO2009100782A1/en active Application Filing
- 2008-10-03 EP EP08872328A patent/EP2243000A1/en not_active Withdrawn
-
2010
- 2010-08-06 US US12/851,762 patent/US8281959B2/en active Active
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Title |
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See also references of WO2009100782A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP2088404A1 (en) | 2009-08-12 |
WO2009100782A1 (en) | 2009-08-20 |
US8281959B2 (en) | 2012-10-09 |
JP5301570B2 (en) | 2013-09-25 |
CN101946164A (en) | 2011-01-12 |
JP2011511706A (en) | 2011-04-14 |
CN101946164B (en) | 2012-06-27 |
US20110036870A1 (en) | 2011-02-17 |
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