EP1350576B1 - Système d'entraínement utilisé dans des dispositifs pour le freinage ou la traction de feuillards metalliques - Google Patents

Système d'entraínement utilisé dans des dispositifs pour le freinage ou la traction de feuillards metalliques Download PDF

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Publication number
EP1350576B1
EP1350576B1 EP03014045A EP03014045A EP1350576B1 EP 1350576 B1 EP1350576 B1 EP 1350576B1 EP 03014045 A EP03014045 A EP 03014045A EP 03014045 A EP03014045 A EP 03014045A EP 1350576 B1 EP1350576 B1 EP 1350576B1
Authority
EP
European Patent Office
Prior art keywords
band
blocks
magnets
distance
permanent magnets
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.)
Expired - Lifetime
Application number
EP03014045A
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German (de)
English (en)
Other versions
EP1350576A3 (fr
EP1350576A2 (fr
Inventor
Norbert Umlauf
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from DE1998152078 external-priority patent/DE19852078A1/de
Priority claimed from DE29909850U external-priority patent/DE29909850U1/de
Application filed by Individual filed Critical Individual
Publication of EP1350576A2 publication Critical patent/EP1350576A2/fr
Publication of EP1350576A3 publication Critical patent/EP1350576A3/fr
Application granted granted Critical
Publication of EP1350576B1 publication Critical patent/EP1350576B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B39/02—Feeding or supporting work; Braking or tensioning arrangements, e.g. threading arrangements
    • B21B39/08—Braking or tensioning arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
    • B21C47/003—Regulation of tension or speed; Braking
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
    • B21C47/006—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only winding-up or winding-off several parallel metal bands
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
    • B21C47/34—Feeding or guiding devices not specially adapted to a particular type of apparatus
    • B21C47/345—Feeding or guiding devices not specially adapted to a particular type of apparatus for monitoring the tension or advance of the material
    • B21C47/3458—Endlessly revolving chain systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H20/00—Advancing webs
    • B65H20/06—Advancing webs by friction band
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
    • B65H23/06—Registering, tensioning, smoothing or guiding webs longitudinally by retarding devices, e.g. acting on web-roll spindle
    • B65H23/10—Registering, tensioning, smoothing or guiding webs longitudinally by retarding devices, e.g. acting on web-roll spindle acting on running web
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
    • B21B38/02—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring flatness or profile of strips
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B39/006—Pinch roll sets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/30—Chains
    • B65H2404/35—Arrangement of chains facing each other for forming a transport nip
    • B65H2404/351—Arrangement of chains facing each other for forming a transport nip the nip being formed between elongate members bridging two chains running synchronously and in parallel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2555/00—Actuating means
    • B65H2555/10—Actuating means linear
    • B65H2555/13—Actuating means linear magnetic, e.g. induction motors

Definitions

  • the invention relates to entrainment systems in a device for pulling or braking metal bands, preferably in band lines between endless circulating chain systems.
  • EP-A-0088347 and EP-A-0195096 there is provided a brake stand for metal or metal strips known, with which the braking of metal bands required tensile or braking force without damaging effects on the surface of the split or un-split tape can muster.
  • the invention is based on the problem, on the one hand the possible applications expand the known brake scaffold and on the other hand in particular for the entry, exit and driving conditions of the carriage-like Roll blocks in the tape take-a targeted, for the different tasks to achieve different behavior.
  • a stable support causes.
  • the inlet and outlet must be made elastic. Training done so that a high elasticity in the horizontal direction (Bandzugcardi) is achieved. Furthermore, with the invention a low crushing achieved, whereby the flexing work in and Spout can be significantly reduced.
  • the coating width corresponds to the chain pitch. The arrangement takes place between the Running coils. With this training, it is possible that a closed contact surface is available in the takeaway area. This training requires the synchronous running of the upper to the lower carriage chain.
  • a low hardness of the coating at a relative thick coating chosen.
  • the metal band is embedded, so that the shape errors of the metal strip in cross-section and the belt ripples be easily compensated.
  • the created open spaces allow that the squashed volume of the elastic coating flow specifically can.
  • the coating receives a filler, e.g. a flat steel. This will achieved that the squeezing means of form factor targeted the function task can be adjusted while the desired inclination the coating can take place in the pulling direction almost unrestricted.
  • a filler e.g. a flat steel.
  • a useful application is that only one circumferential Carriage chain, is designed as a rotating table. It will be by means of permanent magnets or via electromagnets forces in the Band introduced to apply braking or pulling forces can. magnetizable Metal strap is attracted by the forces of attraction Protective belt pulled the cart chain and it will be according to the ⁇ -value driving forces generated.
  • the heating of metal strip is achieved when the energy over the circulating system is fed conductively or inductively. This effect can also be used in galvanic or other processes.
  • the rotating system is equipped with electronic measuring heads For example, the strip thickness, the surface condition, the metallic structures and the like are checked very closely, because the metal band and the probe over a time to be determined with identical speed can work in a fixed position.
  • the brake frame or the control frame can around a Bandzugmeßrahmen be extended. These aggregates depend on leaf springs.
  • the reaction forces of the strip tension are unadulterated via measuring cells detected. This measuring system is capable of excluding the to measure horizontal forces with high repeatability, and can be set to a few Newton, depending on the measuring range.
  • the formation of the electric linear drive has the advantage that the Loading the hinges of the chain wheel brackets only from the Deflection and centrifugal forces occur while the loads from the applied Band trains only act in the pickup area.
  • the sizing the hinges can thus be limited to the deflection and centrifugal forces become. The wear is thereby minimized.
  • the driving distance can be designed so that the metal band Conductive or inductive power is supplied.
  • This solution is preferable in galvanic processes, when heating the band, for Measuring processes on the belt and for the construction of magnetic fields, the Initiation of retention forces are used.
  • For the Power supply are current-conducting in the carriage-like roller blocks Materials introduced. The current can then be selectively switched on, when the roller blocks go through the driving area. Apart from a better efficiency over conventional gas or oil-fired annealing furnace plants, is a big advantage of this measure in that at any time the power supply can be switched off. at the application of the eddy current method, the strip tension through the opposite speed of the track wagons and the retention force be regulated by changing the frequency.
  • the circulating carriage chain system The task is to carry the tape and a fixed band gap to ensure the measuring heads or solenoids.
  • the residence time for the test procedure can be adjusted by the determination of the contact distance because in this area the metal band and the carriage chain system have the same speed.
  • the application is suitable on for tape thickness measurements, tension measurements in the belt, surface scans and other test systems.
  • the supply of the streams can be done either from the inside or the side from the outside.
  • the Zu- and Shutdown occurs after the track wagon reaches the parallel line or before it leaves the parallel route.
  • the arrangement shown has the great advantage that the individual Tape strip without pulley fed to the take-up reel 1, 2 tangentially become.
  • the built in the brake frame 5, 6 retreats are without deflection losses and without relative movements to the casserole point brought. This will be ideal conditions for a uniform created specific Bandzugver whatsoever.
  • the tangential inlet is constantly readjusted.
  • the numeral 1 shows the Aufwickeldorn the Aufwickethaspets, 2 the wound coil, 3 the third separation for the Tape strip, 4 the metal strip, 5 the upper circulating roller, 6 the lower one Circulating roller, 7 the second separation and 8 the first separation to feed the metal strip from the loop 9 perpendicular to the brake frame. 10 is the gap scissors.
  • the brake frame 20 hangs by means of leaf springs 24 in the control frame 21st
  • the strip tension can by means of load cells 23 without falsification by deflections with a very low hysteresis and very high repeat accuracy be measured.
  • the brake and Zuggerüst 20 exists from the stand, oppositely arranged circulating rollers 5 and 6, which are incorporated in guides 18 of the stand 20 and of which the upper circulation roller 5 by means of cylinder-loaded piston rods 18th is made against the lower circulation roller 6.
  • the chains 11 and 11a are composed of a plurality of coupled, carriage-like roller blocks that span the entire length Width of an incoming in the direction of arrow 25 band 4 and with at least two-sided support wheels 26 and side guide rollers 27 roll off a track or lay on the side of this.
  • the career is led to a takeaway area in which the opposite Roll blocks 11 grasp the band 4 on both sides and clamp between them.
  • the coating carriers 13 are provided with an elastic coating 12 Mistake.
  • the coating width corresponds to the chain pitch T and extends within the axes of the support wheels 26 of two adjacent, i.e., consecutive blocks. The axes form at the same time a defined pivot point.
  • the coating 12 is free space 30 designed so that inlet and outlet side a particularly elastic adjustment the squeezed coating is possible.
  • the pinch height The coating should be as low as possible to the To keep flexing work as low as possible. At the same time the coating must a very high elasticity in Bandzugraum received around different on the different inclination of the coating To allow tape speeds for the individual slit strip strips as shown in Fig. 5.
  • FIG. 4 shows the position the coating at low strip tension
  • Fig. 5 at high strip tension.
  • FIG. 6 This embodiment of FIG. 6 is for metal bands with the highest Surface claim of great interest, since no contact with the Brake system is present.
  • the distance between the permanent magnets 33 or coil 34 can be kept constant, that the supports of the circulating rollers are adjusted by the elastic blocks 35 become.
  • the metal band 4 floats by the attractive forces between the permanent magnets 33 or the coils 34.
  • the protective belt 36 is also shown. Are the cylinder 18 by spindle drives replaced, so the distance can be adjusted and the machine hereby receives an additional control element.
  • the carriage chain is moved in the direction of tape travel.
  • the Length of the contact section can be adapted to the case of need.
  • This form of training is for metal strips with the highest surface demands of great interest, as contact on one side only Brake system is present.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Coating Apparatus (AREA)
  • Braking Arrangements (AREA)
  • Advancing Webs (AREA)
  • Coating With Molten Metal (AREA)
  • Transmissions By Endless Flexible Members (AREA)
  • Attitude Control For Articles On Conveyors (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Metal Extraction Processes (AREA)

Claims (13)

  1. Dispositif pour la traction ou le freinage de feuillards métalliques ou de tôles, notamment pour plusieurs feuillards étroits à action de freinage séparée feuillard par feuillard, avec des systèmes de chaínes (26, 27) circulant sans fin constituées de blocs de rouleaux du genre chariots qui entraínent avec eux le feuillard ou la tôle (4), caractérisé en ce que les blocs de rouleaux (11) portent des aimants (33, 34) afin de produire une traction linéaire du feuillard au moyen d'un courant de Foucault.
  2. Dispositif selon la revendication 1, caractérisé en ce que les blocs de rouleaux du genre chariots présentent des éléments porteurs (13) s'étendant transversalement à la direction de transport du feuillard (4), éléments qui portent les aimants (33, 34).
  3. Dispositif selon la revendication 1 ou 2, caractérisé par des aimants permanents (33) ou des bobines électromagnétiques (34).
  4. Dispositif selon l'une des revendications 1 à 3, caractérisé par des blocs élastiques associés aux soutiens des rouleaux circulants (5, 6) afin de régler la distance entre les aimants (33, 34).
  5. Dispositif selon l'une des revendications 1 à 4, caractérisé par une traction linéaire du feuillard produite par le mouvement à l'encontre de la direction d'avancement du feuillard.
  6. Dispositif selon l'une des revendications 1 à 5, caractérisé par des forces d'entraínement et/ou de retenue produites par des champs magnétiques.
  7. Dispositif selon l'une des revendications 1 à 6, caractérisé par le mouvement d'un système à courant de Foucault à l'encontre de la direction d'avancement du feuillard.
  8. Dispositif selon l'une des revendications 1 à 6, caractérisé par le mouvement d'un système à courant de Foucault dans la direction d'avancement du feuillard.
  9. Dispositif selon l'une des revendications 4 à 8, caractérisé par une courroie de protection (36) recouvrant les aimants permanents (33).
  10. Dispositif selon l'une des revendications 1 à 9, caractérisé par une régulation de la distance entre les systèmes de chaínes coopérants (26, 27).
  11. Dispositif selon la revendication 10, caractérisé par des entraínements par broche pour le réglage en continu de la distance.
  12. Dispositif selon l'une des revendications 1 à 11, caractérisé par un seul système de chaínes par cage (figure 7).
  13. Dispositif selon l'une des revendications 1 à 12, caractérisé par la disposition de cages de cintrage et de dispositifs de meulage à bande entre les cages de circulation.
EP03014045A 1998-11-11 1999-11-10 Système d'entraínement utilisé dans des dispositifs pour le freinage ou la traction de feuillards metalliques Expired - Lifetime EP1350576B1 (fr)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
DE29820111U 1998-11-11
DE1998152078 DE19852078A1 (de) 1998-11-11 1998-11-11 Elastische Beschichtung in Vorrichtungen zum Ziehen und Bremsen von Metallbändern
DE29820111 1998-11-11
DE19852078 1998-11-11
DE29909850U DE29909850U1 (de) 1998-11-11 1999-04-19 Elastische Beschichtung in Vorrichtung zum Ziehen oder Bremsen von Metallbändern
DE29909850U 1999-04-19
EP99971746A EP1054743B1 (fr) 1998-11-11 1999-11-10 Systeme d'entrainement utilises dans des dispositifs pour le freinage ou la traction de feuillards metalliques

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP99971746.5 Division 1999-11-10

Publications (3)

Publication Number Publication Date
EP1350576A2 EP1350576A2 (fr) 2003-10-08
EP1350576A3 EP1350576A3 (fr) 2004-02-04
EP1350576B1 true EP1350576B1 (fr) 2005-04-27

Family

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EP03014045A Expired - Lifetime EP1350576B1 (fr) 1998-11-11 1999-11-10 Système d'entraínement utilisé dans des dispositifs pour le freinage ou la traction de feuillards metalliques
EP99971746A Expired - Lifetime EP1054743B1 (fr) 1998-11-11 1999-11-10 Systeme d'entrainement utilises dans des dispositifs pour le freinage ou la traction de feuillards metalliques

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP99971746A Expired - Lifetime EP1054743B1 (fr) 1998-11-11 1999-11-10 Systeme d'entrainement utilises dans des dispositifs pour le freinage ou la traction de feuillards metalliques

Country Status (8)

Country Link
US (2) US6502734B1 (fr)
EP (2) EP1350576B1 (fr)
AT (2) ATE294034T1 (fr)
BR (1) BR9906891A (fr)
CA (1) CA2317432C (fr)
DE (2) DE59911996D1 (fr)
ES (2) ES2242125T3 (fr)
WO (1) WO2000027554A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008029326A1 (de) 2008-06-20 2009-12-24 Sms Siemag Aktiengesellschaft Verfahren und Vorrichtung zum Streckrichten eines Metallbandes
DE102006054383B4 (de) * 2006-11-17 2014-10-30 Sms Siemag Aktiengesellschaft Verfahren, Vorrichtung und deren Verwendung zum Ziehen oder Bremsen eines metallischen Guts
DE102006054385B4 (de) * 2006-11-17 2014-11-13 Sms Siemag Aktiengesellschaft Vorrichtung und deren Verwendung zum Ziehen oder Bremsen eines metallischen Guts

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ES2242125T3 (es) * 1998-11-11 2005-11-01 Norbert Umlauf Sistema de arrastre en dispositivos para tirar de, o frenar, bandas metalicas.
EP1670601B1 (fr) * 2003-10-08 2008-11-26 Norbert Umlauf Installation pour appliquer, sans contact, une traction a des feuillards metalliques electroconducteurs
WO2005105656A1 (fr) * 2004-04-29 2005-11-10 Terex-Demag Gmbh & Co.Kg Systeme d'enroulement de cables pour l'enroulement et le deroulement de cables d'acier de grues
DE102005036570A1 (de) * 2004-12-16 2006-07-06 Steinert Elektromagnetbau Gmbh Verfahren zur Abbremsung eines laufenden Metallbandes und Anlage zur Durchführung des Verfahrens
KR100867221B1 (ko) * 2008-03-10 2008-11-06 주식회사 이피이 트레버스 해소장치를 이용한 장조장 포설 시스템
US9242284B2 (en) 2013-03-15 2016-01-26 Norbert Umlauf Method and apparatus for straightening metal bands
PL226814B1 (pl) * 2015-05-29 2017-09-29 Przedsiębiorstwo Concept Stal B&S Lejman Spółka Jawna Zwijarka doblachy
JP6581217B2 (ja) 2015-06-09 2019-09-25 ノベリス・インコーポレイテッドＮｏｖｅｌｉｓ Ｉｎｃ． 非接触磁気ステアリング
CN107774728A (zh) * 2016-08-31 2018-03-09 扬中凯悦铜材有限公司 铜排拉拔收卷一体化装置
US20180319613A1 (en) * 2017-05-04 2018-11-08 Butech, Inc. Traction tensioning machine
CN107617650A (zh) * 2017-09-18 2018-01-23 攀钢集团攀枝花钢铁研究院有限公司 一种开卷装置
CN109500175A (zh) * 2018-10-29 2019-03-22 通鼎互联信息股份有限公司 一种金属带轧纹前张力装置
EP3858770A1 (fr) * 2018-11-02 2021-08-04 JFE Steel Corporation Dispositif de bride, procédé permettant de commander l'ondulation d'une bande en acier et procédé permettant de produire une bande en acier
CN110905430A (zh) * 2019-12-25 2020-03-24 安徽蓝海之光科技有限公司 一种井下瓦斯封孔自动推进装置
CN111924643B (zh) * 2020-08-12 2022-09-30 广西电网有限责任公司来宾供电局 一种上下压靠型电缆输送机
CN112047012A (zh) * 2020-08-28 2020-12-08 福州隋德洛贸易有限公司 一种半导体器件传送机

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006054383B4 (de) * 2006-11-17 2014-10-30 Sms Siemag Aktiengesellschaft Verfahren, Vorrichtung und deren Verwendung zum Ziehen oder Bremsen eines metallischen Guts
DE102006054385B4 (de) * 2006-11-17 2014-11-13 Sms Siemag Aktiengesellschaft Vorrichtung und deren Verwendung zum Ziehen oder Bremsen eines metallischen Guts
DE102008029326A1 (de) 2008-06-20 2009-12-24 Sms Siemag Aktiengesellschaft Verfahren und Vorrichtung zum Streckrichten eines Metallbandes

Also Published As

Publication number Publication date
EP1350576A3 (fr) 2004-02-04
ES2242125T3 (es) 2005-11-01
US6585140B2 (en) 2003-07-01
US6502734B1 (en) 2003-01-07
WO2000027554A1 (fr) 2000-05-18
EP1054743A1 (fr) 2000-11-29
EP1054743B1 (fr) 2003-06-25
DE59911996D1 (de) 2005-06-02
EP1350576A2 (fr) 2003-10-08
ATE294034T1 (de) 2005-05-15
BR9906891A (pt) 2000-10-17
DE59906096D1 (de) 2003-07-31
ATE243573T1 (de) 2003-07-15
ES2203253T3 (es) 2004-04-01
CA2317432C (fr) 2009-01-27
US20030066857A1 (en) 2003-04-10
CA2317432A1 (fr) 2000-05-18

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