EP1231051A1 - Procédé et dispositif de fabrication d'une structure ondulée de garnissage et appareil de traitement de fluides - Google Patents
Procédé et dispositif de fabrication d'une structure ondulée de garnissage et appareil de traitement de fluides Download PDFInfo
- Publication number
- EP1231051A1 EP1231051A1 EP02290285A EP02290285A EP1231051A1 EP 1231051 A1 EP1231051 A1 EP 1231051A1 EP 02290285 A EP02290285 A EP 02290285A EP 02290285 A EP02290285 A EP 02290285A EP 1231051 A1 EP1231051 A1 EP 1231051A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- strip
- strips
- wave
- rectilinear
- edges
- 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
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D13/00—Corrugating sheet metal, rods or profiles; Bending sheet metal, rods or profiles into wave form
- B21D13/02—Corrugating sheet metal, rods or profiles; Bending sheet metal, rods or profiles into wave form by pressing
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
- Y10T156/10—Methods of surface bonding and/or assembly therefor
- Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
- Y10T156/1007—Running or continuous length work
Definitions
- the present invention relates to a method of manufacturing, from a strip of metallic material in possibly perforated sheet, of a filling wave structured whose general surface is generated substantially by scanning a repetitive profile parallel to the edges of the strip, following a non-rectilinear guideline on at least part of its length and having an orientation main oblique to the edges of the strip in which performs a folding-stamping of the strip by successive steps, by means of two strips opposite reciprocating reciprocal move-away movement, these strips having substantially active surfaces of the two faces of the wave.
- Wavy-cross fillings are used in various devices: mixers for a single phase, heat and / or material exchange devices between two fluids.
- One particular application is distillation, including air distillation.
- linings are made up of modules or "Packs” each of which is formed by a stack of strips wavy oblique, alternately in one direction and in the other. These strips may or may not be perforated, and made from smooth or textured sheets, generally metallic. Examples are described in GB-A-1 004 046 and in CA-A-1 095 827.
- the bands are contained in general vertical plans.
- the modules are generally rotated 90 ° around the axis of the column from one module to the next, and we have shown that these changes of direction cause, at the interfaces between modules, bottlenecks that limit the ability to column treatment.
- WO-A-97/16 247 and EP-A-401682 describe a wave whose generators are curved at each end to become vertical at the top edges and lower of the module.
- EP-A-1025985 describes a method of manufacturing a cardboard humidification panel whose general surface is generated substantially by scanning a repetitive profile parallel to the edges of the strip, along a non-rectilinear guideline on at least one part of its length and having a main oblique orientation relative to the edges of the strip, characterized in that a folding-stamping of the strip (17) is carried out in successive steps, by means of two opposite strips (11, 12) with reciprocating reciprocating-moving relative movement, these strips having active surfaces (11, 12) substantially conjugate on both sides of the wave. If this process is known to fold cardboard, it has not been used to form metal waves.
- the object of the invention is to make it possible to carry out industrially such waves particularly economical and, more generally, to manufacture industrially waves whose generators have various forms.
- the invention also relates to a device for implementation of such a method.
- This device is characterized in that it comprises two opposite strips of folding and stamping, the generators of which include minus a non-rectilinear part, means to animate these sliders of an alternative relative movement of ruzement-distancing, and means to advance a strip of sheet material in successive steps between the strips, in the open position thereof.
- the invention also relates to an apparatus for treatment of fluids, in particular heat exchange and / or of material between two fluids, characterized in that it includes at least one work section equipped with a corrugated-cross filling consisting of waves produced by a process as defined above.
- This processing device can in particular constitute a distillation column, in particular a air distillation column.
- Wave 1 shown in Figure 1 is a thin metallic sheet folded in aluminum, copper or stainless steel which has two parallel side edges 2 and 3. Each edge forms a repetitive profile 4 in zig-zag with 5 sides substantially straight, with upper 6 and lower 7 vertices radius as small as possible.
- the wave is generated by scanning profile 4 parallel to edges 2 and 3, along a guideline 8.
- This line 8 ( Figures 1 and 3) has on the most most of its length a running part 9 straight, inclined at 45 ° to edges 2 and 3, and it curves at each end according to an arc 10 which ends on the corresponding edge, substantially perpendicular to it.
- the two arcs 10 have opposite concavities, which gives line 8 a shape general in elongated S.
- the wave thus comprises a series of wave summits, lower and upper, having the same elongated S shape.
- Wave 1 is made from a strip flat thin metal by simple folding-stamping by means of a device A which includes two strips opposite, lower 11 and upper 12, with movement relative reconciliation of reconciliation.
- Each strip has in the direction of the other ruler two teeth, respectively 13-14 and 15-16, the active surfaces have the three-dimensional shape of the face corresponding wave, these teeth being arranged so to interpenetrate.
- the teeth thus have generators which each have a straight main region extending by regions of curved ends, and define four convex vertices 13A to 16A and two depressions 13B and 15B of similar shape.
- strip 17 starting point is advanced in steps according to arrow F, parallel to these edges, by means of a mechanism 18, while the sliders are spread one from the other, the advance step being equal to the step of undulation. After each advance, the sliders are close together and distort the metal, which substantially fills the entire space between strips, as illustrated in Figure 8.
- the manufacturing of the wave is thus carried out quickly, economically and reliably.
- the strip 17 can be perforated before folding, either in a separate punching station located upstream of device A, either within this device.
- the convex vertices of teeth 13A to 16A have a height reduced, as shown in 19, in phantom on the Figure 8 and in solid lines in Figure 9. More precisely, compared to a horizontal reference plane, the level of the apex of each tooth gradually decreases from a value H, in the rectilinear part 9, to a value H- ⁇ H at the edge 2 or 3 location.
- the metal is less sought in its toric regions, where there remains a free space between itself and at least one of the two strips in their closed position, such as shown in Figure 9.
- Wave 1 can then have a height slightly reduced near its edges, which does not present of particular disadvantage for the lining modules results.
- the variant of Figure 10 uses other means to facilitate the shaping of the regions 10. In this case, we does not limit the elongation of the metal as in the variant previous, but we modify the physical properties for allow this extension in good conditions.
- a metal annealing station B is provided upstream of the folding-stamping station A. Annealing at least concerns the marginal regions of band 17 in which regions 10 will be formed, and possibly the entire strip.
- This variant applies more particularly to perforated waves.
- item B is located between punching post C and post A of folding-pressing.
- station B can be located upstream from station C.
- the invention makes it possible to carry out waves having undulations of very varied forms at from smooth or structured sheets (for example embossed), which improves the properties of Resulting corrugated-cross fillings.
- the invention applies to other types of structured packing, for example example with fan linings.
- These fillings examples of which are described in WO-A-86/06 296 and 90/10 497 as well as in EP-A-845 293, define after folding-stamping and stacking a set of layers of fixed fluid circulation fans. In this case, it is the general area of each wave which conforms to the definition indicated above.
- Part 11 of a air distillation column 20, comprising a section of distillation 21 disposed in the cylindrical shell 22 of the column.
- the section 21 is constituted by a lining wavy-crossover itself formed from a stack of modules of lining 23.
- Each module 23 consists of a stack of waves 1, each located in a general plane vertical, cut to length from the folded strip 17 and whose general directions of undulation are reversed from one wave to another, edges 2 and 3 being arranged horizontally.
- Each module 22 is rotated 90 ° by relation to the next module around the vertical axis X-X of the column.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Separation By Low-Temperature Treatments (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
- Catalysts (AREA)
- Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
- Air Bags (AREA)
Abstract
Description
Si ce procédé est connu pour plier du carton, il n'a pas été utilisé pour former des ondes métalliques.
- les surfaces actives des réglettes sont formées de telle sorte que la hauteur des ondulations des l'onde est réduite sur une région comprenant au moins un bord de l'onde et/ou l'angle formé par les ondulations est modifié (de préférence réduit) sur une région comprenant au moins un bord de l'onde par rapport à l'angle formé par les ondulations dans une région centrale de l'onde.
- dans au moins une région non rectiligne, au moins certains sommets convexes d'au moins une réglette ont une hauteur réduite par rapport à celle d'une région rectiligne adjacente ;
- tous les sommets convexes des deux réglettes ont une hauteur réduite dans une ou chaque région non rectiligne ;
- ladite réduction de hauteur est progressive à partir de ladite région rectiligne adjacente ;
- on perfore la bande avant d'effectuer le pliage-emboutissage ;
- on effectue un recuit de la bande avant son pliage-emboutissage, au moins dans les régions de cette bande qui correspondent aux régions non rectilignes de la ligne directrice ;
- on effectue le recuit près avoir perforé la bande ;
- la ligne directrice a une partie principale rectiligne et au moins une partie d'extrémité incurvée qui se termine sensiblement perpendiculairement aux bords de l'onde.
- la ligne directrice a une forme en S allongé, avec une partie principale rectiligne et deux parties d'extrémité incurvées qui se terminent sensiblement perpendiculairement aux bords de l'onde ;
- le profil est en zig-zag à côtés sensiblement rectilignes ;
- le procédé comprend l'étape de faire avancer la bande de matière métallique en feuille (17) par pas successifs entre les réglettes en position d'ouverture de celles-c ; et,
- l'onde est une onde de garnissage ondulé-croisé.
- la Figure 1 représente en perspective une onde réalisée conformément à l'invention ;
- la Figure 2 représente en perspective deux réglettes de pliage-emboutissage pour la fabrication de cette onde ;
- la Figure 3 est une vue en plan de l'onde en cours de fabrication;
- les Figures 4 et 5 sont des vues prises respectivement suivant les lignes IV-IV et V-V de la Figure 3, illustrant la fabrication de l'onde ;
- la Figure 6 est une vue en bout correspondante, suivant la flèche VI de la Figure 3 ;
- la Figure 7 est une vue analogue à la Figure 6 d'une variante ;
- les Figures 8 et 9 sont des vues agrandies, respectivement, des détails VIII de la Figure 8 et IX de la Figure 7 ;
- la Figure 10 représente schématiquement une autre variante du procédé de l'invention ; et
- la Figure 11 représente schématiquement une partie d'une colonne de distillation d'air suivant l'invention.
Claims (17)
- Procédé de fabrication, à partir d'une bande de matière en feuille (17) éventuellement perforée, d'une onde (1) de garnissage structuré dont la surface générale est générée sensiblement par balayage d'un profil répétitif (4) parallèlement aux bords (2, 3) de la bande, suivant une ligne directrice (8) non rectiligne sur au moins une partie de sa longueur et ayant une orientation principale oblique par rapport aux bords de la bande, dans lequel on effectue un pliage-emboutissage de la bande (17) par pas successifs, au moyen de deux réglettes opposées (11, 12) à mouvement relatif alternatif de rapprochement-éloignement, ces réglettes possédant des surfaces actives (11, 12) sensiblement conjuguées des deux faces de l'onde caractérisé en ce la bande est en matière métallique.
- Procédé suivant la revendication 1, caractérisé en ce que, dans au moins une région non rectiligne, au moins certains sommets convexes (13A à 16A) d'au moins une réglette (11, 12) ont une hauteur réduite par rapport à celle d'une région rectiligne adjacente.
- Procédé suivant la revendication 2, caractérisé en ce que tous les sommets convexes des deux réglettes (11, 12) ont une hauteur réduite dans chaque ou une région non rectiligne.
- Procédé suivant la revendication 2 ou 3, caractérisé en ce que ladite réduction de hauteur est progressive à partir de ladite région rectiligne adjacente.
- Procédé suivant l'une quelconque des revendications 1 à 4, caractérisé en ce qu'on perfore la bande (17) avant d'effectuer le pliage-emboutissage.
- Procédé suivant l'une quelconque des revendications 1 à 5, caractérisé en ce qu'on effectue un recuit de la bande (17) avant son pliage-emboutissage, au moins dans les régions de cette bande qui correspondent aux régions non rectilignes (10) de la ligne directrice (8).
- Procédé suivant l'une quelconque des revendications 1 à 6, caractérisé en ce que la ligne directrice (8) a une partie principale rectiligne (9) et au moins une partie d'extrémité incurvée (10) qui se termine sensiblement perpendiculairement aux bords (2, 3) de l'onde (1).
- Procédé suivant la revendication 7, caractérisé en ce que la ligne directrice (8) a une forme en S allongé, avec une partie principale rectiligne (9) et deux parties d'extrémité incurvées (10) qui se terminent sensiblement perpendiculairement aux bords (2, 3) de l'onde (1).
- Procédé suivant l'une quelconque des revendications 1 à 8, caractérisé en ce que le profil (4) est en zig-zag à côtés (5) sensiblement rectilignes.
- Procédé suivant l'une quelconque des revendications 1 à 9, caractérisé en ce que l'onde (1) est une onde de garnissage ondulé-croisé.
- Procédé suivant l'une quelconque des revendications 1 à 10 comprenant l'étape de faire avancer la bande de matière métallique en feuille (17) par pas successifs entre les réglettes en position d'ouverture de celles-ci.
- Dispositif de mise en oeuvre du procédé suivant l'une quelconque des revendications 1 à 11, caractérisé en ce qu'il comprend deux réglettes opposées (11, 12) de pliage-emboutissage dont les génératrices comportent au moins une partie non rectiligne, des moyens pour animer ces réglettes d'un mouvement relatif alternatif de rapprochement-éloignement, et des moyens (17, 18) pour faire avancer une bande de matière en feuille (17) par pas successifs entre les réglettes en position d'ouverture de celles-ci.
- Dispositif suivant la revendication 12, caractérisé en ce que, dans au moins une région non rectiligne, au moins certains sommets convexes (13A à 16A) d'au moins une réglette (11, 12) ont une hauteur progressivement réduite à partir d'une région rectiligne adjacente.
- Dispositif suivant la revendication 13, caractérisé en ce que tous les sommets convexes des deux réglettes (11, 12) ont une hauteur progressivement réduite dans une ou chaque région non rectiligne.
- Dispositif suivant l'une quelconque des revendications 12 à 14, caractérisé en ce qu'il comprend des moyens (B) pour recuire la bande (17) au moins dans la ou les régions de celle-ci destinée(s) à être pliée(s) de façon non rectiligne, ces moyens de recuit étant situés en amont des réglettes (11, 12).
- Dispositif suivant la revendication 15, caractérisé en ce que lesdits moyens de recuit (B) sont situés en aval ou en amont de moyens de perforation (c).
- Appareil de traitement de fluides, notamment d'échange de chaleur et/ou de matière entre deux fluides, caractérisé en ce qu'il comprend au moins une section de travail (20) équipée d'un garnissage ondulé-croisé constitué d'ondes (1) réalisées par un procédé suivant l'une quelconque des revendications 1 à 11.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0101805A FR2820654B1 (fr) | 2001-02-09 | 2001-02-09 | Procede et dispositif de fabrication d'une onde de garnissage structure, et appareil de traitement de fluides correspondant |
FR0101805 | 2001-02-09 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1231051A1 true EP1231051A1 (fr) | 2002-08-14 |
EP1231051B1 EP1231051B1 (fr) | 2006-03-29 |
Family
ID=8859850
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02290285A Expired - Lifetime EP1231051B1 (fr) | 2001-02-09 | 2002-02-06 | Procédé et dispositif de fabrication d'une structure ondulée de garnissage et appareil de traitement de fluides |
Country Status (8)
Country | Link |
---|---|
US (1) | US7024907B2 (fr) |
EP (1) | EP1231051B1 (fr) |
JP (1) | JP4274731B2 (fr) |
CN (1) | CN1244417C (fr) |
AT (1) | ATE321651T1 (fr) |
CA (1) | CA2370342A1 (fr) |
DE (1) | DE60210237T2 (fr) |
FR (1) | FR2820654B1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2734315A4 (fr) * | 2011-07-21 | 2015-03-18 | Sulzer Chemtech Ag | Outil de formation de feuille et procédé pour la fabrication d'une feuille ondulée |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004050230A (ja) * | 2002-07-19 | 2004-02-19 | Uchiyama Mfg Corp | 金属板のプレス加工方法 |
CN100342200C (zh) * | 2003-07-01 | 2007-10-10 | 华为技术有限公司 | 热交换器换热单元的制作方法 |
DE10337073A1 (de) * | 2003-08-12 | 2005-03-10 | Linde Ag | Verfahren und Vorrichtung zur Herstellung einer geordneten Packung |
DK1750867T3 (da) * | 2004-06-01 | 2010-08-23 | Bekaert Sa Nv | Foldet sintret metalfibermedium |
CA2584113C (fr) * | 2004-11-19 | 2013-02-12 | K.U.Leuven Research & Development | Structure alveolaire thermoplastique semi-fermee, son procede de fabrication et le materiel pour la produire |
KR100832094B1 (ko) * | 2007-06-11 | 2008-05-27 | 심우중 | 골판지 및 이를 이용하여 제조된 팔렛트 |
US8082770B2 (en) * | 2008-03-21 | 2011-12-27 | Remy Technologies, L.L.C. | Apparatus and method for forming wire loops for a dynamoelectric machine |
FR2939339B1 (fr) * | 2008-12-04 | 2011-03-18 | Air Liquide | Procede et dispositif de fabrication d'une onde de garnissage structure, et appareil de traitement de fluides correspondant |
US8720247B2 (en) * | 2011-11-22 | 2014-05-13 | Denso Corporation | Method for bending process and processing machine |
JP6028671B2 (ja) | 2013-04-24 | 2016-11-16 | トヨタ紡織株式会社 | 金属板材の成形方法及び成形装置 |
JP6032115B2 (ja) | 2013-04-24 | 2016-11-24 | トヨタ紡織株式会社 | 金属板材の成形方法及び成形装置 |
FR3025121B1 (fr) * | 2014-08-28 | 2017-03-03 | Gaztransport Et Technigaz | Dispositif et procede de pliage pour former une ondulation dans une piece d'angle |
US10479016B2 (en) * | 2015-01-26 | 2019-11-19 | Stephen J. Motosko | Polycarbonate panel having shallow bends |
JP6798292B2 (ja) * | 2016-12-07 | 2020-12-09 | トヨタ紡織株式会社 | 金属板材の成形方法及び成形装置 |
US20220378190A1 (en) * | 2021-05-28 | 2022-12-01 | F.S.Korea Industries Inc. | Protection cover for cosmetic brush and its manufacturing method |
CN114714673B (zh) * | 2022-03-29 | 2024-01-02 | 青州市祥力轻工设备有限公司 | 水帘块纸带连续瓦楞成形系统 |
Citations (4)
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---|---|---|---|---|
US3307387A (en) * | 1963-12-11 | 1967-03-07 | Rohr Corp | Method and apparatus for perforating and corrugating metallic ribbon |
DE2357892A1 (de) * | 1973-11-20 | 1975-05-22 | Siemens Ag | Luft-, licht- und fluessigkeitsdurchlaessige schirmungselemente |
FR2361952A1 (fr) * | 1975-10-31 | 1978-03-17 | Sobermeca | Procede de reprofilage de toles ondulees metalliques et presse pour la mise en oeuvre de ce procede |
EP1025985A1 (fr) * | 1999-01-15 | 2000-08-09 | Antonio Gigola | Procédé et dispositif de pressage pour la fabrication des panneaux de blindage et humidification, ainsi que panneaux préparés suivant ce procédé |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
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NL131987C (fr) * | 1962-07-31 | |||
NL300812A (fr) * | 1963-02-07 | |||
US3936340A (en) * | 1970-07-07 | 1976-02-03 | G. D. Searle & Co. | Method for making corrugated collimators for radiation imaging devices |
US4450706A (en) * | 1982-02-08 | 1984-05-29 | Siemens Gammasonics, Inc. | Method and apparatus for forming collimator strips |
SE454654B (sv) * | 1986-09-24 | 1988-05-24 | Nordisk Kartro Ab | Sett och anordning for positionering av verktyg i forhallande till en materialbana med upprepad grundform |
SE463082B (sv) * | 1986-10-24 | 1990-10-08 | Nordisk Kartro Ab | Anordning foer profilering av en stegvis frammatad materialbana |
US5168741A (en) * | 1990-11-20 | 1992-12-08 | Braunheim Stephen T | Method for forming a leading edge cover for jet engine blades |
US6357113B1 (en) * | 1999-11-04 | 2002-03-19 | Williams International Co., L.L.C. | Method of manufacture of a gas turbine engine recuperator |
-
2001
- 2001-02-09 FR FR0101805A patent/FR2820654B1/fr not_active Expired - Fee Related
-
2002
- 2002-02-04 CA CA002370342A patent/CA2370342A1/fr not_active Abandoned
- 2002-02-06 EP EP02290285A patent/EP1231051B1/fr not_active Expired - Lifetime
- 2002-02-06 DE DE60210237T patent/DE60210237T2/de not_active Expired - Lifetime
- 2002-02-06 AT AT02290285T patent/ATE321651T1/de not_active IP Right Cessation
- 2002-02-07 JP JP2002030718A patent/JP4274731B2/ja not_active Expired - Fee Related
- 2002-02-07 US US10/067,330 patent/US7024907B2/en not_active Expired - Lifetime
- 2002-02-08 CN CNB021045836A patent/CN1244417C/zh not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3307387A (en) * | 1963-12-11 | 1967-03-07 | Rohr Corp | Method and apparatus for perforating and corrugating metallic ribbon |
DE2357892A1 (de) * | 1973-11-20 | 1975-05-22 | Siemens Ag | Luft-, licht- und fluessigkeitsdurchlaessige schirmungselemente |
FR2361952A1 (fr) * | 1975-10-31 | 1978-03-17 | Sobermeca | Procede de reprofilage de toles ondulees metalliques et presse pour la mise en oeuvre de ce procede |
EP1025985A1 (fr) * | 1999-01-15 | 2000-08-09 | Antonio Gigola | Procédé et dispositif de pressage pour la fabrication des panneaux de blindage et humidification, ainsi que panneaux préparés suivant ce procédé |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2734315A4 (fr) * | 2011-07-21 | 2015-03-18 | Sulzer Chemtech Ag | Outil de formation de feuille et procédé pour la fabrication d'une feuille ondulée |
Also Published As
Publication number | Publication date |
---|---|
JP2002307109A (ja) | 2002-10-22 |
US7024907B2 (en) | 2006-04-11 |
DE60210237T2 (de) | 2006-12-28 |
CN1387964A (zh) | 2003-01-01 |
FR2820654A1 (fr) | 2002-08-16 |
CA2370342A1 (fr) | 2002-08-09 |
CN1244417C (zh) | 2006-03-08 |
FR2820654B1 (fr) | 2003-09-26 |
EP1231051B1 (fr) | 2006-03-29 |
DE60210237D1 (de) | 2006-05-18 |
US20020112811A1 (en) | 2002-08-22 |
JP4274731B2 (ja) | 2009-06-10 |
ATE321651T1 (de) | 2006-04-15 |
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