EP1694443A1 - Method for fixing a mesh insert in a vibrating screen machine, and vibrating screen machine for asphalt mixing installations - Google Patents
Method for fixing a mesh insert in a vibrating screen machine, and vibrating screen machine for asphalt mixing installationsInfo
- Publication number
- EP1694443A1 EP1694443A1 EP03778655A EP03778655A EP1694443A1 EP 1694443 A1 EP1694443 A1 EP 1694443A1 EP 03778655 A EP03778655 A EP 03778655A EP 03778655 A EP03778655 A EP 03778655A EP 1694443 A1 EP1694443 A1 EP 1694443A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fastening strip
- sieve
- machine
- coupling means
- tensioning
- 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
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
- B07B1/48—Stretching devices for screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
- B07B1/4609—Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
- B07B1/48—Stretching devices for screens
- B07B1/49—Stretching devices for screens stretching more than one screen or screen section by the same or different stretching means
Definitions
- the invention relates to a method for fastening a sieve insert in the machine body of a vibrating sieve machine for asphalt plants, an application of the method, a vibrating sieve machine for asphalt mixing plants and a machine body, a clamping beam and a sieve insert for such a vibrating sieve machine according to the preambles of the independent claims.
- Vibration screening machines are mainly used in asphalt mixing plants for classifying split or gravel and are located there directly above the hot mineral silo, so that temperatures of several hundred degrees Celsius typically prevail in the screening machine during operation. Wire meshes are therefore used almost without exception as sieve inserts, which are stretched in the longitudinal direction and placed in the side areas on upwardly arched support flanges in order to maintain the necessary dimensional stability.
- screening machines with today's usual lengths of 5 m to 6 m, two screening inserts are arranged one behind the other per screening deck, which are suspended in a fastening groove on a central clamping beam in the central area of the machine body and at the opposite end in the area of the inlet or outlet side of the screening machine with tensioning elements be put under tension. During operation, the fastening groove in the central clamping beam becomes clogged with screenings and fine material, which through the
- Vibration is solidified and for an exchange of one defective strainer insert must be removed by hand before the strainer insert can be removed from the groove. Since the distances between the screen decks are often only a few decimeters, it is usually not possible to reach or work between the screen decks and the middle clamping beam concerned, so that it is necessary to close any screen inserts above the screen insert to be replaced disassemble. This is associated with an enormous expenditure of time and causes corresponding costs.
- a first aspect of the invention relates to a
- a sieve insert which is preferably formed from a wire mesh and is equipped with a fastening strip on at least one of its boundary edges or ends, is arranged in the machine body of the vibrating sieve machine in such a way that the fastening strip is located in the immediate vicinity of the tensioning beam to which the sieve insert is fastened shall be. In the immediate vicinity here means that the fastening strip is brought into contact with the tensioning beam or is only a few millimeters or centimeters away from it.
- a second aspect of the invention relates to the application of the method according to the first aspect of the invention in the manufacture of a vibrating screening machine for asphalt plants.
- a third aspect of the invention relates to a vibrating screening machine for asphalt mixing plants, which is preferably manufactured or can be produced using the method according to the first aspect.
- the vibrating sieve machine comprises a machine body with at least one clamping beam, which extends in a central region of the machine body with respect to its longitudinal extent transversely to its longitudinal axis.
- At least one end of a sieve insert which is preferably formed from a wire mesh, is provided with a fastening strip on the tensioning beam.
- the positive connection which is present both in the wire tensioning direction and in both directions transversely to it, is caused by an engagement of coupling means on the fastening strip, which, if necessary, can be moved and moved in this way after removing or neutralizing securing means, such as split pins or securing welding points are preferably also removable that the positive connection between the clamping beam and the fastening strip is canceled.
- Such a vibrating sieve machine has the advantage over the prior art that the connection between the sieve insert and the clamping beam can be easily removed and then restored by moving or removing the coupling means, which, as in the case of the method according to the first aspect, can be restored the invention, the time and cost of changing a single screen insert can be significantly reduced.
- the fastening strip is or is fastened to the tensioning beam in such a way that a positive connection between the fastening strip and tensioning beam is also present in a direction opposite the strainer direction.
- the coupling means are either brought into engagement with or engage the fastening strip essentially over the entire extent thereof, which has the advantage of applying force to the fastening strip as uniformly as possible, or but that the coupling means are brought into engagement or attack on a plurality of sections, preferably evenly distributed along the fastening strip, which has the advantage that profile contours closed at least over sections can be used, which enable a particularly stable connection.
- the coupling means for engaging in the fastening strip are moved relative to the tensioning bar or are movable relative to the tensioning bar, for which purpose they are formed separately from the tensioning bar and are preferably also removable. For this purpose, they are advantageously moved in a direction transverse to the longitudinal axis of the vibrating screening machine or in the direction of the longitudinal extension of the tensioning beam or are movable in this direction, so that moving the coupling means by moving or pushing or pulling them out from a position to the side of the machine becomes possible.
- the movement takes place or is possible essentially over the entire extent of the fastening strip, which is useful, for example, if the coupling means can be removed or removed by pulling it out laterally Corresponding insertion reusable coupling profile strip are formed, or that the movement takes place or is possible only over a portion of the extension of the fastening strip, which is useful, for example, with coupling means designed as a locking slide and also has the advantage that the space requirement on the side next to the vibrating screening machine is relatively small is.
- the tensioning bar is also moved at the same time, or the coupling means are firmly connected to the tensioning bar and are preferably even formed in one piece with it.
- the clamping bar is preferably rotated about an axis transversely to the longitudinal axis of the machine or displaced in the direction of the longitudinal axis or is designed to be rotatable about such an axis or displaceable in the longitudinal direction of the machine. This makes it possible to achieve a particularly simple coupling of the coupling means to the fastening strip or a connection which can be released quickly and easily between the tensioning bar and the fastening strip.
- the vibrating sieve machine according to the third aspect of the invention preferably has a plurality of clamping bars in the central region of the longitudinal extent of its machine body, which are arranged in different superimposed planes transversely to the machine longitudinal direction and for the fastening of sieve inserts different sieve decks serve.
- Two sieve inserts with opposite sieve tensioning directions are fastened to at least part of these tensioning beams, preferably on opposite sides of the tensioning beam, in the manner according to the invention, whereby the two sieve inserts are connected to form a continuous sieve deck.
- This has the advantage that the screen tensioning forces are at least partially neutralized and the bending stress of the tensioning beam is low.
- the tensioning bar and the fastening bar are designed in such a way that physicalities of the fastening bar and the tensioning bar penetrate along the extension of the fastening bar or physicalities of the fastening bar penetrate into the tensioning bar or vice versa and within the penetration or penetration with the Coupling means are positively connected to one another in the tensioning direction.
- a fourth aspect of the invention relates to a machine body for a vibrating sieve machine according to the third aspect of the invention, which has one or preferably a plurality of clamping beams in its central region.
- the tensioning beams each have a plurality of tubular-section-shaped elements with a common central axis or a plurality of elements, preferably spaced apart from one another. usually slot-shaped openings, or are rotatably mounted about an axis transverse to the longitudinal axis of the machine body or slidably in the direction of this longitudinal axis on the machine body.
- a fifth aspect of the invention relates to a clamping beam for a vibrating sieve machine according to the third aspect of the invention or for a machine body according to the fourth aspect of the invention.
- the tensioning beam has at least one of its outer edges, preferably along two opposing outer edges, spaced apart from one another by a plurality of tubular-section-shaped elements with a common axis or by a plurality of preferably slot-like openings.
- a sixth aspect of the invention relates to a sieve insert for a vibrating sieve machine according to the third aspect of the invention.
- the sieve insert has at least on one of its boundary edges or ends a fastening strip which, along its outer edge, has a plurality of tubular-section-shaped elements with a common axis or a plurality of projections with undercuts, on which the sieve insert can be held in a form-fitting manner in the sieve tensioning direction.
- the sieve inserts used are preferably formed from a wire mesh, it is nevertheless also intended to apply the fastening method according to the invention to sieve inserts which are formed from other preferably heat-resistant flat structures with sieve openings, such as perforated plates.
- a suitable design it is also possible here, for example, to merely fold the sheet metal to form a fastening strip or to produce a positive fit by engaging in the perforations without bending the sheet metal. In the latter case, yard goods could be used, whereby the pre-confectionery tion of the sieve inserts and the storage would be significantly simplified.
- FIG. 1 a shows a vertical section in the longitudinal direction through a vibrating screening machine according to the prior art
- Fig. Lb shows a section along the line AA in Fig. La
- Fig. Lc shows the detail ZI from Fig. La
- FIG. 1d shows the detail Z2 from FIG. 1b
- 2a shows a plan view of a partial area of the connection between a central clamping beam and two sieve inserts in a first vibrating sieve machine according to the invention
- 2b shows a section along the line BB in FIG. 2a
- 2c shows a section along the line CC in FIG.
- 3a shows a plan view of a partial area of the connection between a central clamping beam and two screen inserts in a second vibration screening machine according to the invention
- 3b shows a section along the line DD in FIG. 3a
- 3c shows a section along the line EE in FIG. 3a
- 4a shows a plan view of a partial area of the connection between a central clamping beam and two sieve inserts in a third vibrating sieve machine according to the invention
- 4b shows a section along the line FF in FIG. 4a
- 4c shows a section along the line GG in FIG.
- FIG. 4a shows a vertical section in the longitudinal direction through the fastening of two screen inserts of a screen deck in the central region of the machine body of a fourth vibration screening machine according to the invention
- FIGS. 5b and 5c each show a representation as in FIG. 5a, but when loosening the fastening of a sieve insert or when loosening the fastening of the sieve insert in a first machine variant
- 5d shows a representation as in FIG. 5a, but with the fastening of the sieve insert loosened in a second machine variant
- 6 shows a vertical section in the longitudinal direction through the attachment of two screen inserts of a screen deck to a central clamping beam of a fifth vibrating screening machine according to the invention
- FIG. 7 shows a vertical section in the longitudinal direction through the fastening of two screen inserts of a screen deck to a central clamping beam of a sixth vibration screening machine according to the invention.
- FIG. 1 a shows a vertical section in the longitudinal direction through the machine body 3 of a vibration screening machine 5, as is used today in asphalt mixing plants, arranged on the hot mineral silo.
- sieve inserts 1 are arranged one above the other and one behind the other in the machine body 3 in such a way that they form six sieve decks one above the other within the machine body 3, the mesh size of which decreases from top to bottom.
- Each screen deck is fastened in the central area of the machine body 3 to a tensioning beam 2 (also called a central tensioning beam) and clamped against a traverse 8 in the area of the inlet side 6 and the outlet side 7 of the vibrating screening machine 5 by means of bolts acting against plate spring packs or spiral springs.
- a tensioning beam 2 also called a central tensioning beam
- a traverse 8 in the area of the inlet side 6 and the outlet side 7 of the vibrating screening machine 5 by means of bolts acting against plate spring packs or spiral springs.
- the unbalance exciters 9 which set the machine body 3 mounted on spring elements (not shown) in vibration during operation.
- FIGS. 1c and 1d show the details ZI from FIG. La and Z2 from FIG. 1b and thus a detail section through or a detailed view of the fastening situation of the sieve inserts la, lb on the tensioning beam 2, the sieve inserts la , lb is formed from a wire mesh 10, which in each case has a sheet metal strip 11 at its fastening end and is folded together with this by approximately 170 °, as a result of which fastening strips 4 are formed at the ends of the wire mesh 10.
- fastening strips 4 are hooked into a groove 12 undercut on both sides in the clamping beam 2 designed as a welded construction and are thereby positively connected to the clamping beam 2 in the clamping direction S of the respective sieve insert la, lb and in both directions transversely thereto.
- the groove 12 is to enable an entry hang the fastening strips 4 of the sieve inserts la, lb so wide that it is open to installed and properly tensioned sieve inserts la, lb towards the top of the sieve deck, with the result that it fills up with material that solidifies over time and then unhooking the
- FIGS. 2a-2c show detailed views of the fastening situation between the sieve inserts la, lb and the tensioning beam 2 in a first vibrating sieve machine according to the invention, specifically FIG. 2a shows a plan view of a portion of the fastening between the central tensioning beam 2 and the two sieve inserts la, lb, Fig. 2b shows a section along the line BB in Fig. 2a and Fig. 2c shows a section along the line CC in Fig. 2a.
- FIGS. 2a-2c show detailed views of the fastening situation between the sieve inserts la, lb and the tensioning beam 2 in a first vibrating sieve machine according to the invention, specifically FIG. 2a shows a plan view of a portion of the fastening between the central tensioning beam 2 and the two sieve inserts la, lb, Fig. 2b shows a section along the line BB in Fig. 2a and Fig. 2c shows a section along the line CC in Fig
- the tensioning beam 2 here consists of a closed rectangular profile 13, on the narrow, opposite outer sides of which several welded cylindrical tube sections 14 of equal length are welded evenly spaced from one another, such that they have a common axis Y have.
- the fastening strips 4 of the two sieve inserts la, lb also have on their outer edges a plurality of cylindrical pipe sections 16 of the same length, which have identical pipe cross sections as the pipe sections 14 on the tensioning beam 2.
- These pipe sections 16 are each Fastening bar 4 spaced apart and aligned along a common axis Y welded to the outer edge of a flat iron profile 15 belonging to the fastening bar 4, onto which the end of the wire braid 10 of the respective sieve insert la, lb is riveted. It is also envisaged to use screws instead of rivets or to make the connection by welding or soldering. As can further be seen from FIG.
- the pipe sections 16 of the fastening strip 4 are arranged in the gaps between the pipe sections 14 of the tensioning beam 2, so that the physicality of the tensioning beam 2 and fastening strip 4 penetrate and all the pipe sections 14, 16 have a common axis Y, along which they are penetrated by a coupling rod 17 and are thus connected to one another in a positive manner in the wire tensioning direction S and in both directions perpendicular to the wire tensioning direction S.
- FIGS. 3a-3c show detailed views of the fastening situation between the sieve inserts la, lb and the tensioning beam 2 in a second vibrating sieve machine according to the invention, namely FIG.
- FIG. 3a shows a plan view of a portion of the fastening between the central tensioning beam 2 and the two sieve inserts la, lb
- FIG 3b shows a section along the line DD in FIG. 3a
- FIG. 3c shows a section along the line EE in FIG. 3a.
- the tensioning bar 2 in the present case has an identical structure to that shown in FIGS. 2a-2c.
- the fastening strips 4 of the sieve inserts la, lb are formed here in that the fastening end of the respective wire Turn over braid 10 with a sheet metal strip 11, then roll it and then roll the rolled part 33 against unrolling with securing welds 18, with recesses being made beforehand for rolling at those points at which the pipe sections 14 of the tensioning beam 2 were attached to the tensioning beam 2 come to rest.
- the connection between the pipe sections 14 of the tensioning beam 2 and the rolled sections 33 of the fastening strip 4 takes place, as in the embodiment according to FIGS. 2a-2c, with a removable coupling rod 17.
- FIGS. 4a-4c show detailed views of the fastening situation between the sieve inserts la, 1b and the tensioning beam 2 in a third vibrating sieve machine according to the invention, namely FIG. 4a a plan view of a section of the fastening between the central tensioning beam 2 and the two sieve inserts la, 1b, FIG. 4b a section along the line FF in FIG 4a and 4c a section along the line GG in FIG. 4a.
- FIGS. 4a-4c show detailed views of the fastening situation between the sieve inserts la, 1b and the tensioning beam 2 in a third vibrating sieve machine according to the invention, namely FIG. 4a a plan view of a section of the fastening between the central tensioning beam 2 and the two sieve inserts la, 1b, FIG. 4b a section along the line FF in FIG 4a and 4c a section along the line GG in FIG. 4a.
- the tensioning beam 2 here consists of a C-profile 19 which is rotated by 90 ° and is open at the bottom, on the narrow, opposite outer sides of which a number of equally long, slit-like through openings 20 are evenly spaced in a line are attached from each other.
- undercut sheet metal noses 21 are arranged in these openings, which are formed by a sheet metal strip 22 of the fastening strip 4 of the respective sieve insert la, lb, on which the sheet metal strip 11 wraps around and around 180 ° bent end of the wire mesh 10 of the respective sieve insert la, lb is riveted.
- the sheet metal noses 21 are also in the form of strips, by means of strips locking strips 23 provided with slot-like openings 25, which engage in the undercuts 24, are positively secured against being pulled out in the wire tensioning direction S from the slot-shaped openings 20, 25.
- the locking strips 23 By moving the locking strips 23 in the longitudinal direction, the engagement in the undercuts 24 can be canceled, so that the sheet metal tabs 21 can be pulled out of the openings 20, 25 in the tensioning direction S.
- each of the two sieve inserts la, lb is assigned its own tensioning beam 2, on which the respective sieve insert la, lb is positively locked in the sieve tensioning direction S and perpendicularly to it in both directions by gripping around a fastening edge 26 of the tensioning beam 2 with its fastening strip 4 is attached.
- the fastening strip 4 has a similar shape and an identical structure to the fastening strips 4 shown in FIG. 1c.
- the two clamping bars 2 can either be rotated or pivoted about an axis of rotation running in the direction of their longitudinal extent, as shown in FIGS. 5b and 5c using the example of the right clamping bar 2 are, this axis of rotation is preferably arranged in the vicinity of the fastening edge 26, or, as also shown in FIG. 5d using the example of the right tensioning bar 2, shifted in the wire tensioning direction S, so that the fastening strip 4 of the respective screen surface la, lb is released becomes.
- the bearing of the clamping beams 2 in the side walls of the machine body 3 can be carried out to enable this movement is known to the person skilled in the art and is therefore not explained in more detail here.
- FIG. 6 shows a vertical section in the longitudinal direction through the fastening of two sieve inserts 1 a, 1 b, formed from a perforated sheet 27, of a sieve deck to a tensioning beam 2 of a fifth vibration sieving machine according to the invention.
- the fastening strips 4 are formed in the present case by 180 ° folding of non-perforated ends of the sheets 27.
- the tensioning beam 2 is formed by a C-profile material rotated through 90 °, which is open at the bottom and has horizontally inwardly and outwardly projecting flange portions 29 at the free end of each of its two legs, on the outside of which the fastening strips 4 of the sieve inserts 1 a , lb rest.
- the respective horizontal flange section 29 and the folded part of the fastening strip 4 resting on this are encompassed by a C-shaped coupling profile 30 with flange sections projecting inwards at the free ends of the professional legs, as a result of which clamping beams 2 and fastening strip 4 form-fitting both in the tensioning direction S and also connected in both directions perpendicular to the screen tensioning direction.
- the respective coupling profile 30 is pulled out of the machine body 3 in its longitudinal direction, that is to say transversely to the wire tensioning direction S.
- the clamping beam 2 consists of a double-T profile, which forms an undercut groove on both its sides, both upwards and downwards.
Landscapes
- Combined Means For Separation Of Solids (AREA)
- Road Paving Machines (AREA)
- Filtration Of Liquid (AREA)
- Working-Up Tar And Pitch (AREA)
Abstract
Description
Claims
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/IB2003/006137 WO2005068092A1 (en) | 2003-12-17 | 2003-12-17 | Method for fixing a mesh insert in a vibrating screen machine, and vibrating screen machine for asphalt mixing installations |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1694443A1 true EP1694443A1 (en) | 2006-08-30 |
EP1694443B1 EP1694443B1 (en) | 2008-11-12 |
Family
ID=34778758
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03778655A Expired - Lifetime EP1694443B1 (en) | 2003-12-17 | 2003-12-17 | Method for fixing a mesh insert in a vibrating screen machine and vibrating screen machine for asphalt mixing installations |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1694443B1 (en) |
CN (1) | CN100571898C (en) |
AT (1) | ATE413932T1 (en) |
AU (1) | AU2003285664A1 (en) |
DE (1) | DE50310792D1 (en) |
WO (1) | WO2005068092A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102500547B (en) * | 2011-10-24 | 2014-11-19 | 三一重工股份有限公司 | Screen component and vibrating screen for asphalt stirring equipment |
DE102020134630A1 (en) | 2020-12-22 | 2022-06-23 | Raps Gmbh & Co. Kg | Screening device for a cyclone screening machine, tensioning system, screening machine and method for mounting at least one screen on a screening device |
CN115739283B (en) * | 2022-10-25 | 2023-08-01 | 北京中投润天环保科技有限公司 | Multistage crushing system for waste |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3608720A (en) * | 1969-05-07 | 1971-09-28 | Symons Brothers Co | Screen-cloth-securing means |
US3943054A (en) * | 1974-12-19 | 1976-03-09 | Durex Products, Inc. | Segmented screen body |
DE2513101A1 (en) * | 1975-03-25 | 1976-10-14 | Hutter & Schrantz Ag | Sieve type contact plate - made up of interlocking plastic modular elements |
US4137157A (en) * | 1976-10-12 | 1979-01-30 | Deister Machine Company, Inc. | Screen tension assembly for vibratory screening apparatus |
AUPP904499A0 (en) * | 1999-03-08 | 1999-03-25 | Cmi Malco Pty Ltd | A screening apparatus |
-
2003
- 2003-12-17 AU AU2003285664A patent/AU2003285664A1/en not_active Abandoned
- 2003-12-17 DE DE50310792T patent/DE50310792D1/en not_active Expired - Lifetime
- 2003-12-17 EP EP03778655A patent/EP1694443B1/en not_active Expired - Lifetime
- 2003-12-17 WO PCT/IB2003/006137 patent/WO2005068092A1/en not_active Application Discontinuation
- 2003-12-17 AT AT03778655T patent/ATE413932T1/en not_active IP Right Cessation
- 2003-12-17 CN CNB2003801110263A patent/CN100571898C/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO2005068092A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP1694443B1 (en) | 2008-11-12 |
CN100571898C (en) | 2009-12-23 |
AU2003285664A1 (en) | 2005-08-03 |
WO2005068092A1 (en) | 2005-07-28 |
DE50310792D1 (en) | 2008-12-24 |
CN1909980A (en) | 2007-02-07 |
ATE413932T1 (en) | 2008-11-15 |
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