EP1674398B1 - Machine d'emballage de produits alimentaires fluides - Google Patents

Machine d'emballage de produits alimentaires fluides Download PDF

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Publication number
EP1674398B1
EP1674398B1 EP04425943A EP04425943A EP1674398B1 EP 1674398 B1 EP1674398 B1 EP 1674398B1 EP 04425943 A EP04425943 A EP 04425943A EP 04425943 A EP04425943 A EP 04425943A EP 1674398 B1 EP1674398 B1 EP 1674398B1
Authority
EP
European Patent Office
Prior art keywords
packaging material
machine
chamber
impurity removing
along
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.)
Not-in-force
Application number
EP04425943A
Other languages
German (de)
English (en)
Other versions
EP1674398A1 (fr
Inventor
Massimo Viola
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.)
Tetra Laval Holdings and Finance SA
Original Assignee
Tetra Laval Holdings and Finance SA
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 Tetra Laval Holdings and Finance SA filed Critical Tetra Laval Holdings and Finance SA
Priority to ES04425943T priority Critical patent/ES2354272T3/es
Priority to AT04425943T priority patent/ATE484453T1/de
Priority to EP04425943A priority patent/EP1674398B1/fr
Priority to DE602004029595T priority patent/DE602004029595D1/de
Priority to CN2005101358397A priority patent/CN1792718B/zh
Publication of EP1674398A1 publication Critical patent/EP1674398A1/fr
Priority to HK06113893.5A priority patent/HK1093047A1/xx
Application granted granted Critical
Publication of EP1674398B1 publication Critical patent/EP1674398B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B55/00—Preserving, protecting or purifying packages or package contents in association with packaging
    • B65B55/24—Cleaning of, or removing dust from, containers, wrappers, or packaging ; Preventing of fouling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B5/00—Cleaning by methods involving the use of air flow or gas flow
    • B08B5/02—Cleaning by the force of jets, e.g. blowing-out cavities
    • B08B5/023—Cleaning travelling work
    • B08B5/026—Cleaning moving webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B41/00—Supplying or feeding container-forming sheets or wrapping material
    • B65B41/12—Feeding webs from rolls
    • B65B41/16—Feeding webs from rolls by rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
    • B65B9/10—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs
    • B65B9/20—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the webs being formed into tubes in situ around the filling nozzles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
    • B65B9/10—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs
    • B65B9/20—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the webs being formed into tubes in situ around the filling nozzles
    • B65B9/207—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the webs being formed into tubes in situ around the filling nozzles the web advancing continuously

Definitions

  • the present invention relates to a machine for packaging pourable food products.
  • pourable food products such as fruit juice, pasteurized or UHT (ultra-high-temperature treated) milk, wine, tomato sauce, etc.
  • UHT ultra-high-temperature treated milk
  • wine tomato sauce
  • etc. are sold in packages made of sterilized packaging material.
  • Tetra Brik Aseptic registered trademark
  • the laminated packaging material comprises layers of fibrous material, e.g. paper, covered on both sides with heat-seal plastic material, e.g. polyethylene.
  • heat-seal plastic material e.g. polyethylene.
  • the side of the packaging material eventually contacting the food product in the package also has a layer of oxygen-barrier material, e.g. aluminium foil or a layer of EVOH, which in turn is covered with a layer of heat-seal plastic material.
  • Packaging machines for producing packages of the above type are known, in which the web of packaging material is unwound off a reel and fed along a predetermined path by rollers and guide members or similar.
  • the web of packaging material is fed through an aseptic environment where it is sterilized by applying a liquid sterilizing agent such as hydrogen peroxide, which is subsequently evaporated by heating and/or by radiation of appropriate wavelength and intensity.
  • a liquid sterilizing agent such as hydrogen peroxide
  • the web of packaging material is then fed through a sterile chamber, in which it is maintained in a sterile-air environment and fed vertically through a number of successive forming assemblies, which interact with the packaging material to fold it gradually from strip form into the form of a cylinder.
  • the forming assemblies normally comprise respective roller folding members defining a number of compulsory passages for the packaging material varying gradually in section from an open C to a substantially circular section.
  • the folding members interact with the web of packaging material to superimpose opposite lateral portions of the web, which are then heat sealed to form a tube of packaging material.
  • a sealing strip of heat-seal plastic material is applied to a longitudinal edge of the inner plastic layer of the packaging material, and the packaging material is heat sealed along the strip to form said tube.
  • the tube is then filled with the sterilized or sterile-processed food product, and is sealed and subsequently cut along equally spaced cross sections to form pillow packs, which are folded mechanically to form respective finished packages of predetermined shape.
  • the packaging material may be cut into blanks, which are formed into packages on forming spindles, and the packages are filled with the food product and sealed.
  • the so-called "gable-top” package known by the trade name Tetra Rex (registered trademark).
  • Packages of the type briefly described above are normally fitted with opening devices by which to unseal the package and pour out the food product.
  • One known opening device comprises a "pull tab", which is applied over a hole in the packaging material, and is removable to open the package.
  • a succession of holes is formed in the strip packaging material, and, on the side eventually facing inwards of the package, the holes are sealed with respective "patches" defined by small sheets of heat-seal plastic material.
  • the pull tabs are applied on the opposite side of the packaging material, and are heat sealed to the respective patches, so that respective free grip portions project from the packaging material.
  • the pull tabs comprise an aluminium oxygen-barrier layer; and a layer of heat-seal plastic material, normally polyethylene, which is sealed to the patch. Consequently, when the pull tab is pulled off, the part of the patch sealed to the tab is pulled off with it, thus exposing the hole.
  • the pull tabs may be applied directly to a so-called "prelaminated" hole in the packaging material, i.e. a hole formed in the layer of fibrous material, before this is covered with the other packaging material layers, which close the hole hermetically and aseptically, while at the same time being easily pierced.
  • the pull tabs are normally applied flat to the packaging material, and are subsequently folded to superimpose the free grip portion on the portion sealed to the packaging material.
  • the folding operation is performed in two steps: a first step, in which the grip end is raised with respect to the packaging material by an air jet directed parallel to the plane of the material and crosswise to its travelling direction; and a second step, in which the raised tab is folded mechanically by contact with appropriately shaped guide surfaces.
  • the Applicant has observed that deposits of waste particles, such as polyethylene fibres and dust, on the packaging material may result in malfunctioning of the stations downstream from the reel, particularly those for applying the longitudinal sealing strip to the edge of the packaging material web, and for folding the pull tabs.
  • waste particles such as polyethylene fibres and dust
  • WO 2004/041697 discloses a machine for packaging pourable food products, as defined in the preamble of claim 1.
  • Number 1 in Figure 1 indicates as a whole a packaging machine for continuously producing sealed packages 2 of a pourable food product, such as pasteurized or UHT milk, fruit juice, wine, etc., from a web 3 of packaging material unwound off a reel 4 and fed along a forming path P.
  • a pourable food product such as pasteurized or UHT milk, fruit juice, wine, etc.
  • web 3 is guided along path P by guide members 5, e.g. rollers or similar, and is fed successively through a number of work stations, of which are shown schematically : a station 6 for applying a longitudinal sealing strip to web 3; a station 7 for folding removable opening devices (known in itself and not shown) applied beforehand to web 3; and a station 8 for forming packages 2 from web 3.
  • a station 6 for applying a longitudinal sealing strip to web 3
  • a station 7 for folding removable opening devices (known in itself and not shown) applied beforehand to web 3
  • a station 8 for forming packages 2 from web 3.
  • station 6 applies a sealing strip of heat-seal plastic material (not shown) to a longitudinal edge 12 of web 3, which is then heat sealed along the sealing strip, inside station 8, to define a vertical tube 11.
  • Station 7 acts on the removable opening devices applied to web 3 to set them to the as-used configuration, i.e. to the configuration in which they can be pulled off by the user.
  • Station 8 comprises a fill device 9 for continuously pouring the sterilized or sterile-processed food product into tube 11 of packaging material; and a jaw-type forming assembly (not shown) for gripping, sealing, and cutting tube 11 along equally spaced cross sections to form a succession of packages 2.
  • machine 1 also comprises a cleaning device 15 for removing any impurities from web 3, and located along path P, downstream from reel 4.
  • Device 15 is preferably interposed between reel 4 and station 6.
  • device 15 comprises a supporting bracket 18 fixed to a portion 13 of a supporting structure (not shown as a whole) of machine 1; and two fluid, preferably air, dispensing units 14 fitted to bracket 18 and acting on opposite sides of web 3 - in the example shown, at longitudinal edge 12 - to remove any impurities from web 3.
  • bracket 18 comprises a first portion 23 substantially in the form of a rectangular plate and fixed to portion 13 of the supporting structure of machine 1; and a second portion 17 in the form of a C-shaped plate, lying in a plane substantially perpendicular to that of portion 23, and integrally supporting units 14.
  • portion 17 comprises two parallel arms 20 separated to permit passage of web 3; and a portion 22 connecting arms 20, and from which portion 23 projects in the form of an extension.
  • Each unit 14 comprises a plate 19 secured to a respective arm 20 of bracket 18; a conduit 16 formed inside plate 19 to create an air stream by which to remove any impurities from web 3; and a blower 25 communicating fluidically with conduit 16 and supplied with air in a manner not shown.
  • Plates 19 are substantially prismatic, are parallel to each other, and are symmetrical with respect to an axis A, which, in use, is perpendicular to path P and parallel to the plane of web 3.
  • plates 19 Towards axis A, plates 19 have respective lateral walls 24 defining a substantially prismatic chamber 21 through which web 3 is fed in use.
  • chamber 21 communicates along axis A, on one side, with the outside atmosphere to permit passage of web 3 along path P, and, on the opposite side, with a waste conduit 26 for collecting the impurities removed from web 3 by both assemblies 14.
  • Each blower 25 projects from respective plate 19 on the axially opposite side to web 3.
  • Each conduit 16 ( Figure 4 ) is formed inside a respective plate 19, is connected fluidically to respective blower 25 by a respective inlet section 38, and comprises, from inlet section 38 to chamber 21, a first portion 32 parallel to axis A, a second portion 33 perpendicular to axis A, and a third portion 34 having a narrower air flow section than portions 32 and 33.
  • Each portion 34 is inclined with respect to axis A towards waste conduit 26, and feeds air directly into chamber 21 to remove and direct to waste conduit 26 any impurities on both faces of web 3 facing plates 19.
  • Each portion 34 communicates fluidically with chamber 21 by means of a respective recess 27 formed in wall 24 of respective plate 19 and for guiding the air to waste conduit 26. More specifically, proceeding along wall 24 of each plate 19 towards waste conduit 26, each recess 27 comprises a first edge 28 extending outwards of axis A and defining an outlet of portion 34 into chamber 21 and perpendicular to portion 34; and a second edge 29 perpendicular to first edge 28 and extending towards axis A.
  • Waste conduit 26 has an air outlet section 39 of device 15 facing chamber 21.
  • the inlet sections 38 of blowers 25 and the outlet section 39 of waste conduit 26 are located on the opposite side of device 15 to web 3, and outlet section 39 is interposed between inlet sections 38 of the two units 14.
  • Each plate 19 is secured to bracket 18 in a direction perpendicular to axis A and parallel to path P.
  • each plate 19 is fixed to respective arm 20 of bracket 18 by bolts 35, which slide, perpendicularly to axis A and in the plane of portion 17 of bracket 18, inside oval slots 36 in portion 17, to adjust the position of device 15 with respect to web 3.
  • Each plate 19 is fitted with two strips 37 of material suitable for defining a sliding contact with web 3, e.g. silicone or Teflon, etc., and which extend inside chamber 21, perpendicularly to axis A and parallel to plate 19, to guide web 3 along path P.
  • material suitable for defining a sliding contact with web e.g. silicone or Teflon, etc.
  • Each blower 25 supplies respective conduit 16 with air, which, after flowing successively along respective portions 32 and 33, is accelerated sharply at respective narrow-section portion 34.
  • a pressure difference is thus produced between the air in each portion 34 and the air about web 3 in chamber 21, and such as to detach any impurities from web 3 and feed them, together with the air, to waste conduit 26.
  • device 15 is easy to fit to machine 1, is cheap and compact, and provides for effectively and continuously removing any waste particles on web 3, to prevent malfunctioning of machine 1 and production stoppages.
  • device 15 may be designed otherwise than as described and shown, so as to interact with areas of web 3 other than longitudinal edge 12.
  • device 15 may be designed otherwise than as described and shown, so as to interact with areas of web 3 other than longitudinal edge 12.
  • cleaning device 15 may comprise respective suction units for removing waste particles on web 3 of packaging material.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • General Preparation And Processing Of Foods (AREA)
  • Adhesives Or Adhesive Processes (AREA)

Claims (8)

  1. Machine (1) de conditionnement de produits alimentaires fluides, comprenant un poste d'alimentation (4) destiné à alimenter un matériau de conditionnement en feuille (3) suivant un trajet de mise en forme prédéterminé (P), le long duquel ledit matériau de conditionnement (3) est transformé en une succession d'emballages scellés (2), et des moyens d'élimination d'impureté (15) destinés à éliminer toutes impuretés sur ledit matériau de conditionnement (3), et situés en aval par rapport audit poste d'alimentation (4) suivant ledit trajet de mise en forme (P) ;
    lesdits moyens d'élimination d'impureté (15) comprenant un moyen de production d'écoulement (14) destiné à produire, sur au moins une surface (12) dudit matériau de conditionnement (3), un écoulement de fluide, et au moins un conduit de distribution (16) destiné à distribuer un fluide à une pression différente de la pression autour dudit matériau de conditionnement (3), de manière à éliminer lesdites impuretés dudit matériau de conditionnement (3) ;
    lesdits moyens d'élimination d'impureté (15) définissant une chambre (21), à travers laquelle ledit matériau de conditionnement (3) est délivré en utilisation, et qui communique de manière fluidique avec ledit conduit de distribution (16) et avec une cuve de récupération (26) destinée à collecter lesdites impuretés ;
    caractérisée en ce que ledit moyen de production d'écoulement comprend au moins un ventilateur (25) destiné à alimenter ledit conduit de distribution (16) avec un fluide ;
    en ce que ladite chambre (21) comporte un axe (A) perpendiculaire audit trajet de mise en forme (P) et parallèle au plan du matériau de conditionnement en feuille (3) lorsqu'il passe à travers la chambre (21) ;
    en ce que ledit conduit de distribution (16) communique avec ladite chambre (21) au niveau d'une partie de section étroite (34) de manière à produire, en utilisation, dans cette dernière, une accélération du fluide et une chute de pression ; et
    en ce que ladite partie de section étroite (34) est orientée vers ladite cuve de récupération (26) et communique de manière fluidique avec ladite chambre (21) au moyen d'une cavité (27), qui est formée sur une paroi (24) délimitant ladite chambre (21) sur un côté dudit axe (A) et est adaptée de manière à guider et diriger ledit fluide vers ladite cuve de récupération (26) suivant une direction orthogonale audit trajet de mise en forme (P) ; ladite cavité (27) comprenant :
    un premier bord (28) s'étendant vers l'extérieur dudit axe (A), définissant une sortie de ladite partie de section étroite (34) dans ladite chambre (21) et perpendiculaire à la partie de section étroite (34) ; et
    un second bord perpendiculaire (29) audit premier bord (28) et s'étendant vers ledit axe (A).
  2. Machine selon la revendication 1, caractérisée par le fait qu'elle comprend un poste d'application (6) destiné à appliquer une bande de scellement sur un bord longitudinal (12) dudit matériau de conditionnement (3) ; et en ce que lesdits moyens d'élimination d'impureté (15) sont situés en amont par rapport audit poste d'application (6) afin d'appliquer ladite bande de scellement.
  3. Machine selon la revendication 1 ou 2, caractérisée par le fait qu'elle comprend un poste de pliage (7) destiné à replier des dispositifs d'ouverture amovibles assemblés sur ledit matériau de conditionnement (3) ; et en ce que lesdits moyens d'élimination d'impureté (15) sont situés en amont par rapport audit poste de pliage (7).
  4. Machine selon l'une quelconque des revendications précédentes, caractérisée en ce que ledit moyen de production d'écoulement (14) comprend au moins deux conduits de distribution (16) afin de distribuer un fluide sur des côtés opposés dudit matériau de conditionnement (3) par rapport audit trajet de mise en forme (P).
  5. Machine selon la revendication 4, caractérisée en ce que lesdits conduits de distribution (16) sont formés sur des plaques respectives (19) dont les parois latérales (26) définissent ladite chambre (21).
  6. Machine selon l'une quelconque des revendications précédentes, caractérisée en ce qu'elle comprend des moyens de réglage (35, 36) afin de régler la position desdits moyens d'élimination d'impureté (15) par rapport audit matériau de conditionnement (3).
  7. Machine selon l'une quelconque des revendications précédentes, caractérisée par le fait qu'elle comprend des moyens de guidage (37) destinés à guider le matériau de conditionnement (3) et situés le long dudit trajet de mise en forme (P), à proximité de la zone de travail desdits moyens d'élimination d'impureté (15).
  8. Machine selon la revendication 7, caractérisée en ce que lesdits moyens de guidage (37) sont supportés par lesdits moyens d'élimination d'impureté (15).
EP04425943A 2004-12-23 2004-12-23 Machine d'emballage de produits alimentaires fluides Not-in-force EP1674398B1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
ES04425943T ES2354272T3 (es) 2004-12-23 2004-12-23 Máquina para envasar productos alimenticios vertibles.
AT04425943T ATE484453T1 (de) 2004-12-23 2004-12-23 Maschine zum verpacken fliessfähiger nahrungsmittel
EP04425943A EP1674398B1 (fr) 2004-12-23 2004-12-23 Machine d'emballage de produits alimentaires fluides
DE602004029595T DE602004029595D1 (de) 2004-12-23 2004-12-23 Maschine zum Verpacken fliessfähiger Nahrungsmittel
CN2005101358397A CN1792718B (zh) 2004-12-23 2005-12-23 用于包装可灌注食品的机器
HK06113893.5A HK1093047A1 (en) 2004-12-23 2006-12-18 Machine for packaging pourable food products

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP04425943A EP1674398B1 (fr) 2004-12-23 2004-12-23 Machine d'emballage de produits alimentaires fluides

Publications (2)

Publication Number Publication Date
EP1674398A1 EP1674398A1 (fr) 2006-06-28
EP1674398B1 true EP1674398B1 (fr) 2010-10-13

Family

ID=34932954

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04425943A Not-in-force EP1674398B1 (fr) 2004-12-23 2004-12-23 Machine d'emballage de produits alimentaires fluides

Country Status (6)

Country Link
EP (1) EP1674398B1 (fr)
CN (1) CN1792718B (fr)
AT (1) ATE484453T1 (fr)
DE (1) DE602004029595D1 (fr)
ES (1) ES2354272T3 (fr)
HK (1) HK1093047A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI449587B (zh) * 2009-10-05 2014-08-21 Shinko Kk 除塵裝置
KR101587580B1 (ko) * 2009-10-07 2016-01-21 가부시키가이샤 신코 제진장치
EP2425902B1 (fr) * 2009-10-16 2013-01-16 Shinko Co., Ltd. Appareil de dépoussiérage
CN102039613B (zh) * 2009-10-22 2014-04-30 株式会社伸兴 除尘装置
SE1000456A1 (sv) * 2010-05-05 2011-11-06 Tetra Laval Holdings & Finance Dust removing web guide
JP2012140162A (ja) * 2010-12-29 2012-07-26 Nihon Tetra Pak Kk 紙粉除去装置
JP5777395B2 (ja) * 2011-04-28 2015-09-09 日本テトラパック株式会社 紙粉除去方法と紙粉除去装置
WO2013152984A1 (fr) 2012-04-10 2013-10-17 Tetra Laval Holdings & Finance S.A. Nettoyeur de bord

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4538396A (en) * 1980-05-22 1985-09-03 Kenji Nakamura Process for producing a re-sealable dispenser-container
EP0789635B1 (fr) * 1994-09-06 1999-08-11 Patent Consulting & Development GmbH Procede et dispositif pour l'enlevement de particules de poussiere sur une bande de materiau en mouvement relatif
DE29618023U1 (de) * 1996-10-17 1997-01-16 Strauch, Helmut, 97483 Eltmann Vorrichtung zum Reinigen der Papieroberfläche an einer laufenden Papierbahn in einer Papiermaschine
US6148831A (en) * 1996-10-25 2000-11-21 Valmet Corporation Method for cleaning a web
JP2001018909A (ja) * 1999-07-07 2001-01-23 Nihon Tetra Pak Kk フラッシング装置
CN2499342Y (zh) * 2001-08-04 2002-07-10 江阴市华夏包装机械有限公司 清除量杯粘物的顶吹装置
SE523995C2 (sv) * 2002-11-07 2004-06-15 Tetra Laval Holdings & Finance Anordning för styrning av en bana av förpackningsmaterial samt sätt att avlägsna damm

Also Published As

Publication number Publication date
CN1792718A (zh) 2006-06-28
ES2354272T3 (es) 2011-03-11
HK1093047A1 (en) 2007-02-23
ATE484453T1 (de) 2010-10-15
EP1674398A1 (fr) 2006-06-28
DE602004029595D1 (de) 2010-11-25
CN1792718B (zh) 2012-02-22

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