US20020060130A1 - Apparatus for processing lumpy material - Google Patents
Apparatus for processing lumpy material Download PDFInfo
- Publication number
- US20020060130A1 US20020060130A1 US09/331,278 US33127800A US2002060130A1 US 20020060130 A1 US20020060130 A1 US 20020060130A1 US 33127800 A US33127800 A US 33127800A US 2002060130 A1 US2002060130 A1 US 2002060130A1
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- US
- United States
- Prior art keywords
- conveyor
- belt conveyor
- belt
- essentially
- speed
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G69/00—Auxiliary measures taken, or devices used, in connection with loading or unloading
- B65G69/04—Spreading out the materials conveyed over the whole surface to be loaded; Trimming heaps of loose materials
- B65G69/0408—Spreading out the materials conveyed over the whole surface to be loaded; Trimming heaps of loose materials by relatively moving an endless feeding means
Definitions
- the present invention relates to an apparatus for processing lumpy and advantageously spherical material, such as pellets, so that the lumpy material can be applied on an essentially continuously moving surface to form a layer which is advantageous both in thickness and in cross-section, so that in the further processing of the lumpy material, the gas to be conducted through said layer can be made to penetrate the layer in an essentially homogeneous fashion.
- Lumpy and essentially spherical material can be processed, in order to obtain a layer that is essentially even in thickness, for example by conveying the material on a conveyor which is articulated at one end, so that the free end of the conveyor moves along a spherical orbit, according to the width of a second conveyor located underneath the first conveyor.
- This kind of combination requires a lot of space in the lengthwise direction, because the conveyors are arranged in succession.
- the material can also be conveyed by moving back and forth a chain-operated conveyor provided with a crank lever mechanism, so that the material is fed in this conveyor at one end, and it drops further onto a transversal conveyor located underneath this first conveyor.
- the drawback of a chain-operated conveyor is that the thickness of the material layer created on the lower conveyor can only be adjusted by changing the chain wheels. This in turn requires that the chain lengths are altered, and further that the conveyor transfer rate and stroke are adjusted.
- the object of the present invention is to eliminate some of the drawbacks of the prior art and to achieve an improved apparatus for processing lumpy and essentially spherical material, wherein the lumpy material is applied on an essentially continuously moving surface in a layer that is advantageous both in thickness and in cross-section, so that the gases to be conducted through said layer in the further processing of the lumpy material are made to penetrate the layer in an essentially even fashion.
- the apparatus for processing lumpy material is provided with an essentially continuously operated belt conveyor, which moves back and forth between two positions in relation to a second conveyor located underneath the first conveyor.
- the opposite positions of the alternating motion are chosen so that the material discharged from the belt conveyor drops onto the conveyor surface of the second conveyor placed underneath the belt conveyor essentially along the whole width of the conveyor surface.
- the alternating motion of the belt conveyor is created by a specific moving member connected to the conveyor, advantageously a hydraulic cylinder provided with a double piston.
- Other corresponding members that are operated for instance electrically can likewise be employed as the moving members.
- the speed of the moving member of the belt conveyor can be steplessly adjusted.
- at least two limit switches whereby the speed of the alternating motion of the belt conveyor can be adjusted near the end of the trajectory of the belt conveyor.
- the motion of the belt conveyor is advantageously slowed down by means of the limit switch located first in the proceeding direction.
- the second limit switch in the proceeding direction is placed at the end of the trajectory, and by means of said second limit switch the motion of the belt conveyor is respectively made to speed up, when the belt conveyor starts moving from the end of the trajectory back towards the first limit switch.
- the location of the first limit switch of the trajectory it is also possible to adjust the required delay times of the motion of the belt conveyor at both ends of the trajectory.
- the speed of motion of the belt conveyor by adjusting the speed of motion of the belt conveyor, the quantity of material fed on the second conveyor located underneath the belt conveyor can also be adjusted in the transversal direction of the conveyor belt.
- the belt of the belt conveyor is made to rotate so that the belt speed in relation to the quantity of the lumpy material fed thereon is essentially constant irrespective of the position and motional direction of the belt conveyor.
- the motion of the belt in the belt conveyor is achieved by means of an electric motor or a hydraulic motor.
- the belt speed of the belt conveyor is advantageously adjusted according to the motional speed, so that the belt conveyor feeds lumpy material onto the second conveyor placed below only when the belt conveyor is returning from that position on the belt conveyor trajectory that is located farthest with respect to the moving member of the belt conveyor.
- the belt speed of the belt conveyor is advantageously the same as the motional speed of the belt conveyor, in which case the belt speed of the belt conveyor with respect to the belt conveyor proper is zero.
- the belt conveyor now moves back from the position on the trajectory that is located farthest in relation to the moving member of the belt conveyor, the speed of the belt conveyor belt is doubled.
- the belt conveyor there always is provided an essentially even layer of lumpy material, which essentially helps in the further processing of the lumpy material.
- FIG. 1 shows a preferred embodiment of the invention in partial cross-section
- FIG. 2 is a top-view illustration of the embodiment of FIG. 1.
- the belt conveyor 1 is installed movably in the supporting structure 2 , so that the belt conveyor 1 moves between the positions 3 and 4 in an essentially continuous operation.
- the locations of the positions 3 and 4 are determined so that the belt conveyor 1 is movable, with respect to the second conveyor 15 arranged underneath the first belt conveyor 1 , essentially along the whole width of the conveyor surface of the conveyor 15 .
- a hydraulic cylinder 5 In order to move the belt conveyor 1 , in the supporting frame 2 there is installed a hydraulic cylinder 5 , and the piston rod 6 of said cylinder 5 is connected to the frame of the belt conveyor 1 by means of a connecting member 7 .
- the belt conveyor I includes a conveyor belt 9 , which is made to move between the driving drum 10 and the bending drum 11 by means of a rotation motor 12 connected to the driving drum 10 .
- the belt conveyor 1 When the belt conveyor 1 is in operation, onto the belt conveyor 1 there is fed lumpy material 13 to be conveyed from the conveyor 14 .
- the conveyor belt 9 of the belt conveyor is made to rotate by means of the rotation motor 12 .
- the belt conveyor I is made to move between the positions 3 and 4 , so that when moving from the position 3 located nearest to the belt conveyor moving member 5 towards the position 4 that is located farthest, the speed of the belt conveyor belt 9 is advantageously the same as the motional speed of the belt conveyor 1 , so that the belt speed of the belt conveyor 9 with respect to the belt conveyor 1 proper is zero.
- the speed of the belt conveyor 1 begins to slow down, and material 13 begins to drop onto the conveyor 15 provided underneath the belt conveyor 1 .
- the motional direction of the belt conveyor 1 changes, and its speed begins to rise owing to the influence of the second limit switch 8 , until the belt conveyor 1 reaches the first limit switch 8 .
- the speed of the belt conveyor 1 is set to be essentially constant, until the belt conveyor 1 reaches the first limit switch 8 located near the position 3 .
- this additional material helps to shape the material bed, so that at the edges it obtains a cross-section which advantageously conforms to a regular trapezoidal shape, because part of the excessive material 13 that is located at the edge rolls, along with the motion of the material, towards the edge of the conveyor surface and possibly drops out thereof.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control And Other Processes For Unpacking Of Materials (AREA)
- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
- Structure Of Belt Conveyors (AREA)
- Photographic Processing Devices Using Wet Methods (AREA)
- Discharge Of Articles From Conveyors (AREA)
- Manipulator (AREA)
- Preliminary Treatment Of Fibers (AREA)
- Crushing And Pulverization Processes (AREA)
- Disintegrating Or Milling (AREA)
- Formation And Processing Of Food Products (AREA)
Abstract
Description
- The present invention relates to an apparatus for processing lumpy and advantageously spherical material, such as pellets, so that the lumpy material can be applied on an essentially continuously moving surface to form a layer which is advantageous both in thickness and in cross-section, so that in the further processing of the lumpy material, the gas to be conducted through said layer can be made to penetrate the layer in an essentially homogeneous fashion.
- Several smelting processes require that the material to be fed into smelting is not too finely divided. Therefore a finely ground material such as concentrate must first be pelletized and thereafter sintered in order to improve the strength of the pellets. The sintering can be carried out for instance in a conveyor-type furnace where hot gas is blown in the pellet bed in order to sinter the wet pellets. For obtaining a homogeneous sintering product, the hot gas must be allowed to flow through the pellet bed in an essentially even fashion. For creating an even gas flow, also the pellet bed must be essentially even in thickness, so that the whole pellet bed is treated in a way that is advantageous for the sintering product.
- In the processing of lumpy, essentially spherical material, it is important to take into account the special feature of the material, i.e. its round surface, which makes the material move piece by piece. When this type of lumpy material should be applied as an essentially even layer, it easily happens that without special procedures the layer becomes very thick in the middle and becomes thinner towards the edges. In thickness, such a layer does not satisfy the requirements of an essentially even layer.
- Lumpy and essentially spherical material can be processed, in order to obtain a layer that is essentially even in thickness, for example by conveying the material on a conveyor which is articulated at one end, so that the free end of the conveyor moves along a spherical orbit, according to the width of a second conveyor located underneath the first conveyor. This kind of combination requires a lot of space in the lengthwise direction, because the conveyors are arranged in succession. In order to obtain an even layer, the material can also be conveyed by moving back and forth a chain-operated conveyor provided with a crank lever mechanism, so that the material is fed in this conveyor at one end, and it drops further onto a transversal conveyor located underneath this first conveyor. The drawback of a chain-operated conveyor is that the thickness of the material layer created on the lower conveyor can only be adjusted by changing the chain wheels. This in turn requires that the chain lengths are altered, and further that the conveyor transfer rate and stroke are adjusted.
- The object of the present invention is to eliminate some of the drawbacks of the prior art and to achieve an improved apparatus for processing lumpy and essentially spherical material, wherein the lumpy material is applied on an essentially continuously moving surface in a layer that is advantageous both in thickness and in cross-section, so that the gases to be conducted through said layer in the further processing of the lumpy material are made to penetrate the layer in an essentially even fashion. The essential novel features of the invention are apparent from the appended claims.
- According to the invention, the apparatus for processing lumpy material is provided with an essentially continuously operated belt conveyor, which moves back and forth between two positions in relation to a second conveyor located underneath the first conveyor. The opposite positions of the alternating motion are chosen so that the material discharged from the belt conveyor drops onto the conveyor surface of the second conveyor placed underneath the belt conveyor essentially along the whole width of the conveyor surface. The alternating motion of the belt conveyor is created by a specific moving member connected to the conveyor, advantageously a hydraulic cylinder provided with a double piston. Other corresponding members that are operated for instance electrically can likewise be employed as the moving members.
- According to the invention, the speed of the moving member of the belt conveyor can be steplessly adjusted. Moreover, on the trajectory of the moving member, advantageously near to both ends of the trajectory, there are provided, movably in the lengthwise direction of the trajectory, at least two limit switches whereby the speed of the alternating motion of the belt conveyor can be adjusted near the end of the trajectory of the belt conveyor. When approaching the end of the trajectory, the motion of the belt conveyor is advantageously slowed down by means of the limit switch located first in the proceeding direction. Now the second limit switch in the proceeding direction is placed at the end of the trajectory, and by means of said second limit switch the motion of the belt conveyor is respectively made to speed up, when the belt conveyor starts moving from the end of the trajectory back towards the first limit switch. By means of the location of the first limit switch of the trajectory, it is also possible to adjust the required delay times of the motion of the belt conveyor at both ends of the trajectory. Moreover, by adjusting the speed of motion of the belt conveyor, the quantity of material fed on the second conveyor located underneath the belt conveyor can also be adjusted in the transversal direction of the conveyor belt.
- In the apparatus according to the invention, the belt of the belt conveyor is made to rotate so that the belt speed in relation to the quantity of the lumpy material fed thereon is essentially constant irrespective of the position and motional direction of the belt conveyor. The motion of the belt in the belt conveyor is achieved by means of an electric motor or a hydraulic motor. The belt speed of the belt conveyor is advantageously adjusted according to the motional speed, so that the belt conveyor feeds lumpy material onto the second conveyor placed below only when the belt conveyor is returning from that position on the belt conveyor trajectory that is located farthest with respect to the moving member of the belt conveyor. When the belt conveyor is moving from the position on the belt conveyor trajectory that is located nearest with respect to the moving member of the belt conveyor towards the position that is located farthest therefrom, the belt speed of the belt conveyor is advantageously the same as the motional speed of the belt conveyor, in which case the belt speed of the belt conveyor with respect to the belt conveyor proper is zero. When the belt conveyor now moves back from the position on the trajectory that is located farthest in relation to the moving member of the belt conveyor, the speed of the belt conveyor belt is doubled. As a result, on the belt conveyor there always is provided an essentially even layer of lumpy material, which essentially helps in the further processing of the lumpy material.
- The invention is explained in more detail below, with reference to the appended drawing, where
- FIG. 1 shows a preferred embodiment of the invention in partial cross-section, and
- FIG. 2 is a top-view illustration of the embodiment of FIG. 1.
- According to FIGS. 1 and 2, the
belt conveyor 1 is installed movably in the supportingstructure 2, so that thebelt conveyor 1 moves between the positions 3 and 4 in an essentially continuous operation. The locations of the positions 3 and 4 are determined so that thebelt conveyor 1 is movable, with respect to thesecond conveyor 15 arranged underneath thefirst belt conveyor 1, essentially along the whole width of the conveyor surface of theconveyor 15. In order to move thebelt conveyor 1, in the supportingframe 2 there is installed a hydraulic cylinder 5, and thepiston rod 6 of said cylinder 5 is connected to the frame of thebelt conveyor 1 by means of a connecting member 7. In order to slow down and respectively speed up the motion of thebelt conveyor 1, in the vicinity of the positions 3 and 4, in the trajectory of thebelt conveyor 1, essentially near to the positions 3 and 4, there are provided limit switches 8. Moreover, the belt conveyor I includes a conveyor belt 9, which is made to move between the drivingdrum 10 and thebending drum 11 by means of arotation motor 12 connected to thedriving drum 10. - When the
belt conveyor 1 is in operation, onto thebelt conveyor 1 there is fedlumpy material 13 to be conveyed from theconveyor 14. The conveyor belt 9 of the belt conveyor is made to rotate by means of therotation motor 12. At the same time, the belt conveyor I is made to move between the positions 3 and 4, so that when moving from the position 3 located nearest to the belt conveyor moving member 5 towards the position 4 that is located farthest, the speed of the belt conveyor belt 9 is advantageously the same as the motional speed of thebelt conveyor 1, so that the belt speed of the belt conveyor 9 with respect to thebelt conveyor 1 proper is zero. When thebelt conveyor 1 reaches the first limit switch 8 in relation to the proceeding direction, and when it further proceeds towards the position 4, the speed of thebelt conveyor 1 begins to slow down, andmaterial 13 begins to drop onto theconveyor 15 provided underneath thebelt conveyor 1. When the belt conveyor I reaches the position 4, the motional direction of thebelt conveyor 1 changes, and its speed begins to rise owing to the influence of the second limit switch 8, until thebelt conveyor 1 reaches the first limit switch 8. After passing the first limit switch 8, the speed of thebelt conveyor 1 is set to be essentially constant, until thebelt conveyor 1 reaches the first limit switch 8 located near the position 3. - When the
belt conveyor 1 is returning from the position 4 that is located farthest from the belt conveyor moving member 5, the belt speed of the belt conveyor 9 between the first limit switches 8 is doubled in relation to the speed of thebelt conveyor 1, and thematerial 13 to be conveyed is dropped onto theconveyor 15. When the speed of thebelt conveyor 1 is constant, the material dropped on theconveyor 15 forms amaterial bed 16 that is advantageous for further processing both in thickness and in cross-section. At the edges of theconveyor 15, between the limit switches 8 and the positions 3 and 4, there is droppedmore material 13 than in the area between the limit switches 8. As the material moves further, this additional material helps to shape the material bed, so that at the edges it obtains a cross-section which advantageously conforms to a regular trapezoidal shape, because part of theexcessive material 13 that is located at the edge rolls, along with the motion of the material, towards the edge of the conveyor surface and possibly drops out thereof.
Claims (4)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI965254A FI104417B (en) | 1996-12-30 | 1996-12-30 | Device for handling piece-like material |
FI965254 | 1996-12-30 | ||
PCT/FI1997/000829 WO1998029323A1 (en) | 1996-12-30 | 1997-12-22 | Apparatus for processing lumpy material |
Publications (2)
Publication Number | Publication Date |
---|---|
US20020060130A1 true US20020060130A1 (en) | 2002-05-23 |
US6401908B1 US6401908B1 (en) | 2002-06-11 |
Family
ID=8547369
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/331,278 Expired - Lifetime US6401908B1 (en) | 1996-12-30 | 1997-12-22 | Apparatus for processing lumpy material |
Country Status (9)
Country | Link |
---|---|
US (1) | US6401908B1 (en) |
EP (1) | EP0963332B1 (en) |
AT (1) | ATE213222T1 (en) |
BR (1) | BR9713664A (en) |
DE (1) | DE69710499T2 (en) |
EA (1) | EA000823B1 (en) |
FI (1) | FI104417B (en) |
WO (1) | WO1998029323A1 (en) |
ZA (1) | ZA9711498B (en) |
Cited By (6)
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CN110884916A (en) * | 2019-12-11 | 2020-03-17 | 河南中烟工业有限责任公司 | A even distributing device for pipe tobacco is carried driving |
CN112207041A (en) * | 2020-10-26 | 2021-01-12 | 江西才智重工机械有限公司 | Automatic ore conveying device |
CN113405348A (en) * | 2021-08-19 | 2021-09-17 | 山东嘉信工业装备有限公司 | Air energy microwave intelligent combined drying assembly line |
CN113941502A (en) * | 2021-10-13 | 2022-01-18 | 四川德胜集团钒钛有限公司 | Finished product feed divider of extension sintering maintenance cycle |
CN114132767A (en) * | 2021-11-30 | 2022-03-04 | 唐山神州机械集团有限公司 | Clean coal discharge port device for dry intelligent coal preparation system |
CN115072339A (en) * | 2022-07-28 | 2022-09-20 | 苏州威登智能科技有限公司 | Automobile part production device with rapid shunting and guiding functions |
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FR2864880B1 (en) * | 2004-01-14 | 2007-04-06 | Clairefontaine Atel | HARVESTING MACHINE OF GENUS PRODUCTS, IN PARTICULAR |
CN105836494A (en) * | 2016-05-27 | 2016-08-10 | 大唐环境产业集团股份有限公司 | Belt type storage silo material scattering and distributing device |
CN106185361B (en) * | 2016-08-30 | 2018-06-19 | 山东华唐环保科技有限公司 | A kind of coal dust storage bin unloading device |
CN106185278B (en) * | 2016-08-30 | 2018-06-19 | 山东华唐环保科技有限公司 | A kind of coal dust dosing device |
CN108974855A (en) * | 2018-06-19 | 2018-12-11 | 绵阳师范学院 | A kind of material particles automatic material taking mechanism |
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US2496548A (en) | 1948-04-13 | 1950-02-07 | V La Rosa & Sons | Macaroni weighing machine |
US3435967A (en) * | 1967-06-23 | 1969-04-01 | Walter J Sackett Sr | Automatic level loading system for bin storage of free flowing materials |
US3530973A (en) * | 1968-12-30 | 1970-09-29 | Allis Chalmers Mfg Co | Feed conveying and distributing apparatus |
US3590177A (en) * | 1969-06-13 | 1971-06-29 | Buchanan Electrical Prod Corp | Limit switch |
JPS559930B2 (en) * | 1974-02-27 | 1980-03-13 | ||
US3959614A (en) * | 1974-10-07 | 1976-05-25 | Allen-Bradley Company | Limit switch rotary return mechanism |
GB2044212B (en) * | 1979-03-05 | 1983-05-11 | Hassy Horticultural Dev Ltd | Method and apparatus for handling plant material |
US4345655A (en) | 1980-09-24 | 1982-08-24 | Fahrenholz Harley D | Rock picker with storage conveyors |
CH657829A5 (en) * | 1982-12-17 | 1986-09-30 | Sig Schweiz Industrieges | DEVICE FOR REORDERING DISK-SHAPED OBJECTS, e.g. BISKUITS. |
FR2616421A1 (en) * | 1987-06-15 | 1988-12-16 | Bet B Roulon | Rapid loading device, particularly for transferring objects between two transporters |
JP2628954B2 (en) | 1991-12-26 | 1997-07-09 | 忠男 宇野 | Sheet bundle accumulator |
US6115644A (en) | 1993-03-11 | 2000-09-05 | Cedarapids, Inc., | Moisture content measuring apparatus and method |
JPH09194024A (en) * | 1996-01-16 | 1997-07-29 | Sumitomo Electric Ind Ltd | Charging device for friction material raw mixture |
IT1285931B1 (en) | 1996-06-07 | 1998-06-26 | Schnell Spa | STORAGE DEVICE FOR METAL BAR CUTTING LINES |
-
1996
- 1996-12-30 FI FI965254A patent/FI104417B/en not_active IP Right Cessation
-
1997
- 1997-12-22 DE DE69710499T patent/DE69710499T2/en not_active Expired - Lifetime
- 1997-12-22 AT AT97948936T patent/ATE213222T1/en active
- 1997-12-22 EA EA199900605A patent/EA000823B1/en not_active IP Right Cessation
- 1997-12-22 ZA ZA9711498A patent/ZA9711498B/en unknown
- 1997-12-22 EP EP97948936A patent/EP0963332B1/en not_active Expired - Lifetime
- 1997-12-22 BR BR9713664-6A patent/BR9713664A/en not_active IP Right Cessation
- 1997-12-22 US US09/331,278 patent/US6401908B1/en not_active Expired - Lifetime
- 1997-12-22 WO PCT/FI1997/000829 patent/WO1998029323A1/en active IP Right Grant
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110884916A (en) * | 2019-12-11 | 2020-03-17 | 河南中烟工业有限责任公司 | A even distributing device for pipe tobacco is carried driving |
CN112207041A (en) * | 2020-10-26 | 2021-01-12 | 江西才智重工机械有限公司 | Automatic ore conveying device |
CN113405348A (en) * | 2021-08-19 | 2021-09-17 | 山东嘉信工业装备有限公司 | Air energy microwave intelligent combined drying assembly line |
CN113941502A (en) * | 2021-10-13 | 2022-01-18 | 四川德胜集团钒钛有限公司 | Finished product feed divider of extension sintering maintenance cycle |
CN114132767A (en) * | 2021-11-30 | 2022-03-04 | 唐山神州机械集团有限公司 | Clean coal discharge port device for dry intelligent coal preparation system |
CN115072339A (en) * | 2022-07-28 | 2022-09-20 | 苏州威登智能科技有限公司 | Automobile part production device with rapid shunting and guiding functions |
Also Published As
Publication number | Publication date |
---|---|
FI965254A0 (en) | 1996-12-30 |
EP0963332B1 (en) | 2002-02-13 |
FI965254A (en) | 1998-07-01 |
US6401908B1 (en) | 2002-06-11 |
EP0963332A1 (en) | 1999-12-15 |
WO1998029323A1 (en) | 1998-07-09 |
EA199900605A1 (en) | 2000-02-28 |
DE69710499T2 (en) | 2002-09-05 |
BR9713664A (en) | 2000-04-04 |
FI104417B (en) | 2000-01-31 |
ATE213222T1 (en) | 2002-02-15 |
EA000823B1 (en) | 2000-04-24 |
DE69710499D1 (en) | 2002-03-21 |
ZA9711498B (en) | 1998-06-24 |
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