EP1478469B1 - Device for spraying water with a thin seal-support - Google Patents

Device for spraying water with a thin seal-support Download PDF

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Publication number
EP1478469B1
EP1478469B1 EP03720621A EP03720621A EP1478469B1 EP 1478469 B1 EP1478469 B1 EP 1478469B1 EP 03720621 A EP03720621 A EP 03720621A EP 03720621 A EP03720621 A EP 03720621A EP 1478469 B1 EP1478469 B1 EP 1478469B1
Authority
EP
European Patent Office
Prior art keywords
seal
contact
perforated plate
seal support
end parts
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
EP03720621A
Other languages
German (de)
French (fr)
Other versions
EP1478469A1 (en
Inventor
Frédéric NOELLE
Christian Decolin
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.)
Rieter Perfojet SAS
Original Assignee
Rieter Perfojet SAS
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
Application filed by Rieter Perfojet SAS filed Critical Rieter Perfojet SAS
Publication of EP1478469A1 publication Critical patent/EP1478469A1/en
Application granted granted Critical
Publication of EP1478469B1 publication Critical patent/EP1478469B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H18/00—Needling machines
    • D04H18/04—Needling machines with water jets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening
    • B05B1/20—Arrangements of several outlets along elongated bodies, e.g. perforated pipes or troughs, e.g. spray booms; Outlet elements therefor

Definitions

  • the present invention relates to a device for jetting water jets, useful in particular for the hydraulic bonding of fibers into nonwovens.
  • This binding consists of sending a curtain of pressurized water jets onto a sheet of fibers to entangle them and form them into a coherent sheet, without requiring the use of binder or resin. It is also possible to bind sheet material, such as textile complexes, films, paper, fabrics, knits.
  • DE-A 19 921 694 describes a device for projecting water jets, comprising a pressure-resistant body and delimiting an interior chamber having an inlet and communicating, with the interposition of a perforated plate, with an outlet opening outside the body, the face of the perforated plate facing the outlet being in contact with a first seal housed in a first part of a seal holder having a slot facing the outlet, a second seal housed in the seal holder being in contact with the body.
  • the invention is remedied by a device for projecting water jets, which, while being able to be mounted and maintained easily, is of great efficiency.
  • said first portion of the seal holder in contact with the perforated plate has, at least near the slot, a thickness of less than 10 mm.
  • the thickness of the middle portion in the vicinity of the slot is at least 2 mm, so that the seal carrier has sufficient strength.
  • the thickness is between 3 and 6 mm.
  • the seal holder is slidably mounted in the body parallel to the axis of the inner chamber.
  • said first portion is a medial portion and is continued by two thicker end portions whose thickness extends towards the inner chamber.
  • the two end portions are respectively in contact with the longitudinal slices of the perforated plate and hold it.
  • the two end portions penetrate at their free end into guide grooves of the seal holder, formed in the body.
  • the body extends between the two thick parts of the seal carrier and the spacer so that it, despite the thinness of the middle portion, retains its shape even when it is subjected to large pressure forces.
  • the seal holder is U-shaped whose two branches form the end portions and the core the middle portion.
  • the seals are preferably annular seals of rectangular shape with rounded peaks.
  • the second seal is in contact with the first part of the seal carrier.
  • the invention also relates to a fiber binding installation in a nonwoven, comprising a cylinder on which the fibers to be bonded can pass and a device according to the invention whose jets are directed on the side face of the cylinder.
  • the jets projection device comprises a parallelepiped body 1 having two large faces 2, 3 opposite, two opposite small faces 4.5, and two opposite end faces 6.
  • the body 1 is made of steel.
  • both front faces 6 are provided unrepresented connectors constituting an inlet communicating with a source of pressurized water that is not shown.
  • a cylindrical filter 9 of the same shape as the chamber 7, but of smaller diameter.
  • the face 5 of the body consists of a jaw 10 which is screwed to the rest of the body 1 by screws 11.
  • the jaw 10 delimits a cavity in which is housed a seal holder 14 made of metal, plastic or composite material, composed of a median part or core of 4 mm of annular thickness 15 of a thickness of 5 mm and two branches 16, 17 lateral (end portions) extending parallel to the axis 8 and thicker e greater than that of the core 15.
  • the two parts 16,17 are in contact with the longitudinal edges (Parallel to the axis 8) of the perforated plate 23
  • the seal holder 14 has a longitudinal slot 18 passing opposite the channel 12 and the outlet 13. On either side of the slot 18, the seal holder 14 comprises a groove 19 facing the chamber 7 and in which is housed a rectangular joint 20 with rounded vertices.
  • the seal holder 14 comprises an annular groove 21 as the groove 19 and in which is housed a second annular seal 22.
  • the seal 20 is closer to the slot 18 than the seal 22.
  • a plate 23 perforated microperforations whose diameter is between 50 and 500 microns and preferably between 100 and 200 microns which makes it possible to form jets or needles of water. These perforations are arranged in a row or two rows parallel to the axis 8 and facing the slot 18.
  • the seal holder 23 can slide in its housing parallel to the axis 8 the branches 16,17 passing in grooves 24 formed in the body 1 and be removed from the device, after a plug 26 has been removed. The same is true of the perforated plate 23.
  • the solid part of the body 1 between the grooves 24 serves as a spacer and thus maintains the shape of the seal holder 14 despite its thinness by preventing it from closing when subjected to pressure forces.
  • the free ends of the end portions 16, 17 of the seal carrier are at a distance from the bottom of the grooves 24.

Abstract

The water jet feeder consists of a pressure-resistant body (1) with an inner chamber (7) containing a cylindrical filter (9) and a perforated plate with a seal (20) covering its outlet channel (12). The seal holder is made with a thin first section in contact with the perforated plate and adjacent to a lengthwise slot. The thickness of the aforementioned first section is below 10 mm, and preferably between 2 and 10 mm, and it is bounded by two thicker lengthwise edges that face towards the inner chamber, make contact with the lengthwise edges of the perforated plate and have ends (25) that engage with guide grooves in the body. The seal holder has a U-shaped cross-section, with the two branches forming its edges and a core forming its centre section, and it has a second seal (22) in contact with its thin first section.

Description

La présente invention se rapporte à un dispositif de projection de jets d'eau, utile notamment pour le liage hydraulique de fibres en des non tissés. Ce liage consiste à envoyer un rideau de jets d'eau sous pression sur une nappe de fibres pour les enchevêtrer et les former en une nappe cohérente, sans nécessiter l'utilisation de liant ou de résine. On peut lier aussi de la matière en feuille, telle que des complexes textiles, des films, du papier, des tissus, des tricots.The present invention relates to a device for jetting water jets, useful in particular for the hydraulic bonding of fibers into nonwovens. This binding consists of sending a curtain of pressurized water jets onto a sheet of fibers to entangle them and form them into a coherent sheet, without requiring the use of binder or resin. It is also possible to bind sheet material, such as textile complexes, films, paper, fabrics, knits.

Au DE-A 19 921 694, on décrit un dispositif de projection de jets d'eau, comprenant un corps résistant à la pression et délimitant une chambre intérieure ayant une entrée et communiquant, avec interposition d'une plaque perforée, avec une sortie débouchant à l'extérieur du corps, la face de la plaque perforée tournée vers la sortie étant en contact avec un premier joint logé dans une première partie d'un porte-joint ayant une fente en regard de la sortie, un deuxième joint logé dans le porte-joint étant en contact avec le corps.DE-A 19 921 694 describes a device for projecting water jets, comprising a pressure-resistant body and delimiting an interior chamber having an inlet and communicating, with the interposition of a perforated plate, with an outlet opening outside the body, the face of the perforated plate facing the outlet being in contact with a first seal housed in a first part of a seal holder having a slot facing the outlet, a second seal housed in the seal holder being in contact with the body.

Ce dispositif se construit et s'entretient assez facilement. Mais à l'expérience il s'avère inefficace pour obtenir un bon liage hydraulique.This device is built and maintained quite easily. But to experience it is inefficient to get a good hydraulic binding.

L'invention y remédie par un dispositif de projection de jets d'eau, qui, tout en pouvant être monté et entretenu facilement, est d'une grande efficacité.The invention is remedied by a device for projecting water jets, which, while being able to be mounted and maintained easily, is of great efficiency.

Suivant l'invention, ladite première partie du porte-joint en contact avec la plaque perforée a, au moins près de la fente, une épaisseur inférieure à 10 mm.According to the invention, said first portion of the seal holder in contact with the perforated plate has, at least near the slot, a thickness of less than 10 mm.

On a maintenant compris que l'inefficacité des dispositifs antérieurs provenait de la grande distance entre la plaque perforée et la sortie. Les jets perdent de la vitesse sur cette grande distance. En amincissant le porte-joint, on prévient cette perte de vitesse et améliore l'efficacité.It has now been understood that the inefficiency of the prior devices resulted from the large distance between the perforated plate and the outlet. The jets lose speed over this great distance. By thinning the seal holder, it prevents this loss of speed and improves efficiency.

On préfère que l'épaisseur de la partie médiane au voisinage de la fente soit au moins de 2 mm, afin que le porte-joint ait une résistance mécanique suffisante. De préférence, l'épaisseur est comprise entre 3 et 6 mm.It is preferred that the thickness of the middle portion in the vicinity of the slot is at least 2 mm, so that the seal carrier has sufficient strength. Preferably, the thickness is between 3 and 6 mm.

Le porte-joint est monté coulissant dans le corps parallèlement à l'axe de la chambre intérieure. Pour faciliter ce mouvement ladite première partie est une partie médiane et se continue par deux parties d'extrémités plus épaisses dont l'épaisseur s'étend en direction de la chambre intérieure. Les deux parties d'extrémité sont en contact avec respectivement les tranches longitudinales de la plaque perforée et la maintiennent. Les deux parties d'extrémité pénètrent par leur extrémité libre dans des rainures de guidage du porte-joint, ménagées dans le corps. Le corps s'étend entre les deux parties épaisses du porte-joint et les entretoise de sorte que celui-ci, en dépit de la minceur de la partie médiane, conserve sa forme même quand il est soumis aux grandes forces de pression. De préférence, le porte-joint est en forme de U dont les deux branches forment les parties d'extrémités et l'âme la partie médiane.The seal holder is slidably mounted in the body parallel to the axis of the inner chamber. To facilitate this movement, said first portion is a medial portion and is continued by two thicker end portions whose thickness extends towards the inner chamber. The two end portions are respectively in contact with the longitudinal slices of the perforated plate and hold it. The two end portions penetrate at their free end into guide grooves of the seal holder, formed in the body. The body extends between the two thick parts of the seal carrier and the spacer so that it, despite the thinness of the middle portion, retains its shape even when it is subjected to large pressure forces. Preferably, the seal holder is U-shaped whose two branches form the end portions and the core the middle portion.

Les joints sont de préférence des joints annulaires de forme rectangulaire à sommets arrondis. De préférence, le deuxième joint est en contact avec la première partie du porte-joint.The seals are preferably annular seals of rectangular shape with rounded peaks. Preferably, the second seal is in contact with the first part of the seal carrier.

L'invention vise aussi une installation de liage de fibres en un non tissé, comprenant un cylindre sur lequel peuvent passer les fibres à lier et un dispositif suivant l'invention dont les jets sont dirigés sur la face latérale du cylindre.The invention also relates to a fiber binding installation in a nonwoven, comprising a cylinder on which the fibers to be bonded can pass and a device according to the invention whose jets are directed on the side face of the cylinder.

Au dessin annexé, donné uniquement à titre d'exemple :

  • La figure 1 est une vue en coupe d'un dispositif suivant l'invention suivant un plan perpendiculaire à l'axe de la chambre intérieure,
  • La figure 2 est une vue en coupe suivant la ligne II-II de la figure 1, et
  • La figure 3 est une vue en perspective partielle du porte-joint.
In the attached drawing, given only by way of example:
  • FIG. 1 is a sectional view of a device according to the invention in a plane perpendicular to the axis of the inner chamber,
  • FIG. 2 is a sectional view along the line II - II of FIG. 1, and
  • Figure 3 is a partial perspective view of the seal carrier.

En se reportant aux figures, le dispositif de projection des jets suivant l'invention comprend un corps 1 parallélépipédique ayant deux grandes faces 2, 3 opposées, deux petites faces 4,5 opposées, et deux faces frontales 6 opposées. Le corps 1 est en acier. Dans le corps 1 est forée une chambre 7 oblongue d'axe 8, qui va d'une face 6 frontale à l'autre. Dans les deux faces 6 frontales sont ménagés des raccords non représentés constituant une entrée communiquant avec une source d'eau sous pression qui n'est pas représentée. Dans la chambre 7, est disposé un filtre 9 cylindrique, de même forme que la chambre 7, mais de plus petit diamètre.Referring to the figures, the jets projection device according to the invention comprises a parallelepiped body 1 having two large faces 2, 3 opposite, two opposite small faces 4.5, and two opposite end faces 6. The body 1 is made of steel. In the body 1 is drilled an oblong chamber 7 of axis 8, which goes from one face 6 to the other. In both front faces 6 are provided unrepresented connectors constituting an inlet communicating with a source of pressurized water that is not shown. In the chamber 7, there is arranged a cylindrical filter 9, of the same shape as the chamber 7, but of smaller diameter.

La face 5 du corps est constituée d'un mors 10 qui est vissé au reste du corps 1 par des vis 11.The face 5 of the body consists of a jaw 10 which is screwed to the rest of the body 1 by screws 11.

Un canal 12, en forme de fente s'étendant sur une génératrice ou sur deux génératrices adjacentes de la chambre 7, mène de la chambre 7 à une ouverture 13 en forme de fente ménagée dans la face 5 et débouchant à l'extérieur.A slot-shaped channel 12 extending on a generator or two adjacent generatrices of the chamber 7, leads from the chamber 7 to an opening 13 in the form of a slot formed in the face 5 and opening to the outside.

Le mors 10 délimite une cavité dans laquelle est logé un porte-joint 14 en métal, en matière plastique ou en matériau composite, composé d'une partie médiane ou âme de 4 mm d'épaisseur annulaire 15 d'une épaisseur de 5 mm et de deux branches 16, 17 latérales (parties d'extrémité) s'étendant parallèlement à l'axe 8 et d'épaisseur e plus grande que celle de l'âme 15. Les deux parties 16,17 sont en contact avec les bords longitudinaux (parallèles à l'axe 8) de la plaque 23 perforée Le porte-joint 14 ménage une fente 18 traversante longitudinale en regard du canal 12 et de la sortie 13. De part et d'autre de la fente 18, le porte-joint 14 comprend une rainure 19 tournée vers la chambre 7 et dans laquelle est logé un joint 20 rectangulaire à sommets arrondis. Sur la face opposée, le porte-joint 14 comporte une rainure 21 annulaire comme la rainure 19 et dans laquelle est logé un deuxième joint 22 annulaire. Le joint 20 est plus proche de la fente 18 que le joint 22. Sur la face comportant le joint 20 est posée une plaque 23 perforée de microperforations dont le diamètre est compris entre 50 et 500 microns et, de préférence, entre 100 et 200 microns, qui permet de former des jets ou aiguilles d'eau. Ces perforations sont disposées suivant une rangée ou deux rangées parallèlement à l'axe 8 et en regard de la fente 18.The jaw 10 delimits a cavity in which is housed a seal holder 14 made of metal, plastic or composite material, composed of a median part or core of 4 mm of annular thickness 15 of a thickness of 5 mm and two branches 16, 17 lateral (end portions) extending parallel to the axis 8 and thicker e greater than that of the core 15. The two parts 16,17 are in contact with the longitudinal edges (Parallel to the axis 8) of the perforated plate 23 The seal holder 14 has a longitudinal slot 18 passing opposite the channel 12 and the outlet 13. On either side of the slot 18, the seal holder 14 comprises a groove 19 facing the chamber 7 and in which is housed a rectangular joint 20 with rounded vertices. On the opposite face, the seal holder 14 comprises an annular groove 21 as the groove 19 and in which is housed a second annular seal 22. The seal 20 is closer to the slot 18 than the seal 22. On the face comprising the seal 20 is placed a plate 23 perforated microperforations whose diameter is between 50 and 500 microns and preferably between 100 and 200 microns which makes it possible to form jets or needles of water. These perforations are arranged in a row or two rows parallel to the axis 8 and facing the slot 18.

Le porte-joint 23 peut coulisser dans son logement parallèlement à l'axe 8 les branches 16,17 passant dans des rainures 24 ménagées dans le corps 1 et être sorti du dispositif, après qu'un bouchon 26 en a été retiré. Il en va de même de la plaque 23 perforée. La partie pleine du corps 1 entre les rainures 24 sert d'entretoise et maintient ainsi la forme du porte-joint 14 en dépit de sa minceur en l'empêchant de se refermer lorsqu'il est soumis aux forces de pression.The seal holder 23 can slide in its housing parallel to the axis 8 the branches 16,17 passing in grooves 24 formed in the body 1 and be removed from the device, after a plug 26 has been removed. The same is true of the perforated plate 23. The solid part of the body 1 between the grooves 24 serves as a spacer and thus maintains the shape of the seal holder 14 despite its thinness by preventing it from closing when subjected to pressure forces.

Pour faciliter le montage du dispositif, les extrémités 25 libres des parties 16,17 d'extrémité du porte-joint sont à distance du fond de rainures 24. Lorsque l'on visse le mors 10 sur la partie principale du corps 1, le jeu qui subsiste entre les extrémités 25 des parties 16,17 d'extrémité du porte-joint 14 et le corps 1 permet d'effectuer le vissage sans danger de blocage.To facilitate assembly of the device, the free ends of the end portions 16, 17 of the seal carrier are at a distance from the bottom of the grooves 24. When the jaw 10 is screwed onto the main part of the body 1, the clearance remaining between the ends 25 of the end portions 16, 17 of the seal holder 14 and the body 1 makes it possible to screw without danger of blockage.

Claims (9)

  1. Device for projecting water jets, comprising a pressure-resistant body (1) delimiting an inner chamber (7) having an inlet and communicating, with the interposition of a perforated plate (23), with an outlet (13) emerging outside the body (1), the face of the perforated plate (23) turned towards the outlet (13) being in contact with a first seal (20) housed in a first part (15) of a seal support (21) having a slot (18) facing the outlet (13), a second seal (22) housed in the seal support (21) being in contact with the body (1), characterized in that the said first part (15) of the seal support (21) in contact with the perforated plate (23) has, at least close to the slot (18), a thickness of less than 10 mm.
  2. Device according to Claim 1, characterized in that the said first part of the seal support has a thickness of between 2 and 10 mm.
  3. Device according to Claim 1 or 2, characterized in that the said first part continues in two thicker end parts (16, 17), of which the thickness increases in the direction of the inner chamber (7).
  4. Device according to Claim 3, characterized in that the two end parts (16, 17) are in contact respectively with the longitudinal edges of the perforated plate (23).
  5. Device according to Claim 3 or 4, characterized in that the two end parts (16, 17) enter by their free ends (25) into grooves (24) for guiding and maintaining the shape of the seal support (21), these grooves being provided in the body (1).
  6. Device according to Claim 5, characterized in that the ends (25) of the end parts (16, 17) are at a certain distance from the bottom of the grooves (24).
  7. Device according to one of Claims 3 to 6, characterized in that the seal support (21) is in the shape of a U of which the two arms (16, 17) form the end parts and the core (15) forms the central part.
  8. Device according to one of the preceding claims, characterized in that the second seal (22) is in contact with the first part (15) of the seal support (21).
  9. Installation for the hydraulic bonding of a nonwoven comprising a cylinder and a device for projecting water jets, its jets being directed onto the lateral face of the cylinder, characterized in that this device is such as claimed in one of the preceding claims.
EP03720621A 2002-02-19 2003-02-18 Device for spraying water with a thin seal-support Expired - Lifetime EP1478469B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0202069 2002-02-19
FR0202069A FR2836075B1 (en) 2002-02-19 2002-02-19 WATER JET PROJECTION DEVICE WITH THIN JOINT HOLDER
PCT/FR2003/000519 WO2003070379A1 (en) 2002-02-19 2003-02-18 Device for spraying water with a thin seal-support

Publications (2)

Publication Number Publication Date
EP1478469A1 EP1478469A1 (en) 2004-11-24
EP1478469B1 true EP1478469B1 (en) 2006-07-12

Family

ID=27636298

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03720621A Expired - Lifetime EP1478469B1 (en) 2002-02-19 2003-02-18 Device for spraying water with a thin seal-support

Country Status (9)

Country Link
US (1) US7156327B2 (en)
EP (1) EP1478469B1 (en)
JP (1) JP4418239B2 (en)
CN (1) CN1317080C (en)
AT (1) ATE332755T1 (en)
AU (1) AU2003224201A1 (en)
DE (1) DE60306752T2 (en)
FR (1) FR2836075B1 (en)
WO (1) WO2003070379A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006004459B3 (en) * 2006-01-30 2007-06-21 Fleissner Gmbh O-ring assembly device for nozzle beam of liquid jets producing device, has releasing device with releasing unit, which is provided with contact surface, on one side, where surface is moved against O-ring in specific position of unit
FR2902035B1 (en) * 2006-06-13 2008-08-08 Rieter Perfojet Soc Par Action TOOL FOR PLACING A JOINT IN A THROAT, IN PARTICULAR FOR DEVICES FOR PROJECTING WATERJET
EP2302120B1 (en) * 2009-09-22 2012-06-20 Groz-Beckert KG Injector for a textile processing machine
IT202000024976A1 (en) * 2020-10-22 2022-04-22 Vincenzo Penati SYSTEM FOR WETTING PAPER SHEETS

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3613999A (en) * 1970-04-29 1971-10-19 Du Pont Apparatus for jetting liquid onto fibrous material
US5042722A (en) * 1987-07-13 1991-08-27 Honeycomb Systems, Inc. Apparatus for jetting high velocity liquid streams onto fibrous materials
GB2259029B (en) * 1991-08-29 1995-04-26 Hozelock Ltd Water spray gun
US6000626A (en) * 1998-01-12 1999-12-14 Waxman Consumer Products Group, Inc. Hand operated water sprayer and soap dispenser
DE19921694A1 (en) 1999-05-12 2000-11-16 Fleissner Maschf Gmbh Co Jet beam for fluid jet creating device, with removable insert in pressure distribution chamber
US6164566A (en) * 1999-09-15 2000-12-26 Hui-Chen; Chao Water ejecting structure of pistol nozzle

Also Published As

Publication number Publication date
AU2003224201A1 (en) 2003-09-09
EP1478469A1 (en) 2004-11-24
CN1635931A (en) 2005-07-06
JP4418239B2 (en) 2010-02-17
FR2836075A1 (en) 2003-08-22
WO2003070379A1 (en) 2003-08-28
ATE332755T1 (en) 2006-08-15
US7156327B2 (en) 2007-01-02
FR2836075B1 (en) 2004-04-23
US20050082398A1 (en) 2005-04-21
DE60306752T2 (en) 2007-07-12
JP2005517830A (en) 2005-06-16
CN1317080C (en) 2007-05-23
DE60306752D1 (en) 2006-08-24

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