EP1497191B1 - Dispositif de chargement a confinement souple - Google Patents
Dispositif de chargement a confinement souple Download PDFInfo
- Publication number
- EP1497191B1 EP1497191B1 EP03711609A EP03711609A EP1497191B1 EP 1497191 B1 EP1497191 B1 EP 1497191B1 EP 03711609 A EP03711609 A EP 03711609A EP 03711609 A EP03711609 A EP 03711609A EP 1497191 B1 EP1497191 B1 EP 1497191B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- transfer device
- flexible
- material transfer
- inner liner
- flexible material
- 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
Links
- 239000000463 material Substances 0.000 claims abstract description 55
- 238000012546 transfer Methods 0.000 claims abstract description 34
- 238000007789 sealing Methods 0.000 claims abstract description 5
- 239000004744 fabric Substances 0.000 claims description 33
- -1 polyethylene Polymers 0.000 claims description 17
- 239000004020 conductor Substances 0.000 claims description 7
- 229920000098 polyolefin Polymers 0.000 claims description 7
- 239000000843 powder Substances 0.000 claims description 7
- 230000004888 barrier function Effects 0.000 claims description 6
- 239000004743 Polypropylene Substances 0.000 claims description 5
- 229920001155 polypropylene Polymers 0.000 claims description 5
- 239000004698 Polyethylene Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 229920001748 polybutylene Polymers 0.000 claims description 4
- 229920000573 polyethylene Polymers 0.000 claims description 4
- 239000007769 metal material Substances 0.000 claims description 3
- 229920001169 thermoplastic Polymers 0.000 claims description 3
- 239000012815 thermoplastic material Substances 0.000 claims description 3
- 239000004416 thermosoftening plastic Substances 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
- 239000006229 carbon black Substances 0.000 claims description 2
- 239000000835 fiber Substances 0.000 claims description 2
- 229910002804 graphite Inorganic materials 0.000 claims description 2
- 239000010439 graphite Substances 0.000 claims description 2
- 239000002245 particle Substances 0.000 claims description 2
- 239000000126 substance Substances 0.000 description 8
- 229920000642 polymer Polymers 0.000 description 7
- 230000003389 potentiating effect Effects 0.000 description 7
- 238000007599 discharging Methods 0.000 description 5
- 150000001875 compounds Chemical class 0.000 description 4
- 231100000331 toxic Toxicity 0.000 description 4
- 230000002588 toxic effect Effects 0.000 description 4
- 230000010354 integration Effects 0.000 description 3
- 239000003440 toxic substance Substances 0.000 description 3
- 239000002759 woven fabric Substances 0.000 description 3
- 239000012847 fine chemical Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000002920 hazardous waste Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 231100000614 poison Toxicity 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 239000010891 toxic waste Substances 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 239000000543 intermediate Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012811 non-conductive material Substances 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 239000008194 pharmaceutical composition Substances 0.000 description 1
- 239000012450 pharmaceutical intermediate Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 238000009958 sewing Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 231100000167 toxic agent Toxicity 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes or webs of flexible sheet material, e.g. in folded wrappers
- B65D75/52—Details
- B65D75/58—Opening or contents-removing devices added or incorporated during package manufacture
- B65D75/5861—Spouts
- B65D75/5872—Non-integral spouts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D31/00—Bags or like containers made of paper and having structural provision for thickness of contents
- B65D31/04—Bags or like containers made of paper and having structural provision for thickness of contents with multiple walls
Definitions
- the present invention relates to a film based material transfer device, with an integrated restraint system that protects the process operator and environment from the potent or otherwise harmful, and/or toxic substances contained within it, as well as a method for producing the film based material transfer device.
- GB-A-2.354.754 discloses a fluid transport container having the features of the preamble of the independent claim.
- Material transfer devices for potent compounds used in the pharmaceutical industry are typically constructed of rigid polymer bottles that can be integrated directly to a passive half of a split butterfly valve. These devices allow filling and/or discharging of potent substances in a contained manner when mated to the active half of a split butterfly valve.
- the rigid polymer bottles are strong enough to withstand limited pressurization during operation of the valve, during both filling and discharge.
- a process for integrating a flexible film based liner into a woven fabric restraint has been developed to transfer potent or toxic substances in a contained manner.
- the integration of the fabric restraint allows the system to withstand limited pressurization.
- the restraint not only adds strength to the system while maintaining flexibility but also protects the liner from breach of containment due to puncture.
- the film liner maybe welded to a polymer sanitary fitting that can be integrated to a passive half of a split butterfly valve.
- the flexible nature of the device allows the operator to manually massage the potent powder substance to enhance flow characteristics when emptying the device.
- the restraint can be fabricated of conductive or non-conductive material. If constructed from conductive material this will allow grounding of the device to eliminate static charge build-up while filling or discharging.
- the transfer device further comprises a window sewn or thermally sealed to the fabric restraint for viewing the load contained in the inner liner.
- the flexible charging device 1 of the invention utilizes an inner liner 10 of Fig. 1 .
- inner liner 10 is fabricated from a thin impermeable film of polymer material.
- the shape of inner liner 10 may be constructed from patterns that are thermally welded or sewn to form a sealed structure together at joints 11 or provided as a single unit, having no welded joints.
- Inner liner 10 is also, preferably, thermally welded to a sanitary fitting 12.
- inner liner 10 may contain one or more sewn seams as described in U.S. Application No. 09/666,845 .
- inner liner 10 may be joined to sanitary fitting 12 by any known, or later developed, method, including sewing or joining with an adhesive.
- FIG. 1 depicts inner liner 10 as having a specific shape, it is understood that, preferably, inner liner 10 is a flexible material, conforming generally to the shape of its contents and/or the container.
- Sanitary fitting 12 may be any structure capable for forming a substantially sealed joint with a filling device (not shown) such as an active or passive half split of a butterfly valve, and is preferably formed from a thermoplastic, such as a polyolefin.
- sanitary fitting 12 is provided with sealing means, such as O-rings or locking members, to form an airtight seal with the filling device.
- sealing means such as O-rings or locking members, to form an airtight seal with the filling device.
- sanitary fitting 12 includes means for sealing to prevent the escape of any material contained in flexible charging device 1, i.e., the load.
- inner liner 10 is constructed of a thermoplastic film, such as a polyolefin.
- inner liner 10 may also include one or more barrier layers. Such barrier layers can prevent chemical fluid or vapor introduction/escape, light inhibition, or other barrier layers to prevent contact of the contents of the liner with the environment.
- inner liner 10 may be any thin flexible material, e.g., a woven or non-woven fabric, coated with at least one polymer layer, and optionally, a chemical barrier layer.
- the thin flexible material need not be impervious to the material disposed within flexible charging device 1, as the polymer layer should perform such a function. If the thin flexible material, coated with a polymer, provides the structure necessary to maintain the integrity of inner liner 10, the thickness of the polyolefin layer may be reduced.
- the polymer layer of inner liner 10 is a thermoplastic material, such as a polyolefin, for example, polyethylene, polypropylene or polybutylene.
- inner liner 10 is integrated to an outer fabric restraint 13.
- fabric restraint 13 is provided with window 18, integrated into the side.
- a user may use window 18 to verify that all the contained substance has been emptied from the device during discharge.
- Window 18 is typically sewn over an opening in fabric restraint 13, using a thread, or may simply be thermally sealed to fabric restraint 13.
- inner liner 10 is a flexible material, which, in most situations will conform to the shape provided by the contents thereof, window 18 may include a second element providing observation through inner liner 10 as well. Accordingly, window 18 may include a seam, joining an aperture through both fabric restraint 13 and inner liner 10.
- fabric restraint 13 is preferably a polymeric material, such as a homopolymer or copolymer or blends of plastic material, such as a thermoplastic material, typically a polyolefin.
- the polyolefin may be an optionally substituted linear or branched material, for example, polyethylene, polypropylene or polybutylene.
- fabric restraint 13 may be formed from the same material as inner liner 10, typically, fabric restraint 13 is a woven polypropylene fabric.
- fabric restraint 13 is conductive. This may be accomplished by incorporating a small amount of metallic or conductive material, such as a powder, flakes or fibers, into the structure of fabric restraint 13, or optionally, by providing fabric restraint 13 with a plurality of conductive elements, such as wires, spokes or threads. Additionally, it is considered within the scope of the invention to incorporate other conductive material, other than metal, in the structure of fabric material 13, for example, carbon black or graphite particles.
- flexible charging device 1 may be provided, for example, with a grounding loop 19, sewn into fabric restraint 13. By forming fabric restraint 13 from a conductive material, any charge developed inside fabric restraint 13 may easily be discharged. If the fabric restraint 19 is not provided with conductive material, material disposed inside flexible charging device 1 may ignite or cause other dangerous situations, such as explosions.
- Fig. 3 shows a cross-section of the top of flexible charging device 1 (when in a discharge position) along the line indicated at A-A in Fig. 2 .
- Inner liner 10 is placed inside fabric restraint 13 and mechanically attached by a stitching 15 through both a hem 14 on fabric restraint 13 and, for example, a welded seam 16 at the top of inner liner 10. Integration of inner liner 10 to fabric restraint 13 will assure that the liner remains in place and prevent the liner from collapsing and hampering product discharge. In order to reduce any risk of breaching containment, it is preferable to provide stitching 15 only where necessary, i.e., at weld seam 16 and/or window 18.
- a lifting loop 17 is also optionally provided.
- Lifting loop 17 may be captured in stitching 15 at the top of the device, or attached in any other manner to flexible charging device 1.
- lifting loop may be welded to the side of fabric restraint 13 or joined to sanitary fitting 12. This gives the user a means of suspending the device during unloading.
- grounding loop 19 with lifting loop 17, or to provide lifting loop 17 with a hinge, such that it may also be used to maintain flexible charging device 1 to permit suspension during filling and discharging.
- flexible charging device 1 may be provided with a second lifting loop 17 for such a purpose.
- flexible charging device 1 may be used to contain any variety of materials, such as powders, flakes, emulsions and liquids, and need not be limited to containing harmful or toxic materials.
- flexible charging device is particularly designed to contain and/or transport materials such as fine chemicals, toxic and/or hazardous waste, pharmaceutical compositions in dry or powder form, intermediate materials for pharmaceutical processing, and laboratory and pilot plant compounds, as well as pharmaceutical wet-cake material.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bag Frames (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Supplying Of Containers To The Packaging Station (AREA)
- Coating Apparatus (AREA)
- Basic Packing Technique (AREA)
- Filling Of Jars Or Cans And Processes For Cleaning And Sealing Jars (AREA)
Claims (23)
- Dispositif de transfert de matériau souple pour transférer une charge contenue dans celui-ci, comprenant :une doublure interne (10) souple, ayant une extrémité fermée et une extrémité ouverte ;un raccord sanitaire (12) fixé à l'extrémité ouverte de ladite doublure interne (10) souple ;dans lequel ledit dispositif de transfert comprend également :un élément de retenue externe (13) en tissu entourant ladite doublure interne (10) et intégré à celle-ci,caractérisé en ce qu'il comprend en outre une fenêtre (18) cousue ou scellée thermiquement sur l'élément de retenue externe (13) en tissu pour observer la charge contenue dans la doublure interne (10) souple.
- Dispositif de transfert de matériau souple selon l'une quelconque des revendications précédentes, caractérisé en ce que ladite doublure interne (10) est formée à partir d'une pluralité de motifs, soudés thermiquement ou cousus les uns avec les autres.
- Dispositif de transfert de matériau souple selon l'une quelconque des revendications précédentes, caractérisé en ce que ledit raccord sanitaire (12) comprend un élément d'étanchéité pour former un joint étanche à l'air avec un dispositif de remplissage utilisé pour délivrer un matériau à transférer, de sorte que le matériau ne puisse pas sensiblement s'échapper.
- Dispositif de transfert de matériau souple selon la revendication 3, caractérisé en ce que l'élément d'étanchéité comprend au moins l'un sélectionné dans le groupe consistant en un joint torique et un élément de blocage.
- Dispositif de transfert de matériau souple selon l'une quelconque des revendications précédentes, caractérisé en ce que ladite doublure interne (10) est formée à partir d'un matériau polymérique.
- Dispositif de transfert de matériau souple selon l'une quelconque des revendications précédentes, caractérisé en ce que ladite doublure interne (10) est formée à partir d'un film thermoplastique.
- Dispositif de transfert de matériau souple selon l'une quelconque des revendications précédentes, caractérisé en ce que ladite doublure interne (10) est formée à partir d'une polyoléfine.
- Dispositif de transfert de matériau souple selon l'une quelconque des revendications précédentes, caractérisé en ce que ladite doublure interne (10) est formée à partir d'un matériau sélectionné dans le groupe consistant en du polyéthylène, du polypropylène, du polybutylène, et similaire.
- Dispositif de transfert de matériau souple selon l'une quelconque des revendications précédentes, caractérisé en ce que ladite doublure interne (10) comprend au moins une couche de barrière pour empêcher le contact de la charge avec l'environnement.
- Dispositif de transfert de matériau souple selon la revendication 9, caractérisé en ce que ladite au moins une couche de barrière est imperméable à la charge.
- Dispositif de transfert de matériau souple selon l'une quelconque des revendications précédentes, caractérisé en ce que ladite doublure interne (10) est imperméable à la charge.
- Dispositif de transfert de matériau souple selon l'une quelconque des revendications précédentes, caractérisé en ce que ledit élément de retenue externe (13) est formé à partir d'un tissu souple.
- Dispositif de transfert de matériau souple selon la revendication 1, caractérisé en ce que ladite fenêtre (18) est cousue sur une ouverture dans l'élément de retenue externe (13).
- Dispositif de transfert de matériau souple selon la revendication 12, caractérisé en ce que le tissu souple est formé à partir d'un matériau thermoplastique.
- Dispositif de transfert de matériau souple selon la revendication 12, caractérisé en ce que le tissu souple est formé à partir d'un matériau sélectionné dans le groupe consistant en du polyéthylène, du polypropylène et du polybutylène linéaire et à branches.
- Dispositif de transfert de matériau souple selon la revendication 12, caractérisé en ce que le tissu souple est conducteur.
- Dispositif de transfert de matériau souple selon la revendication 12, caractérisé en ce que le tissu souple comprend au moins un matériau conducteur sélectionné dans le groupe consistant en une poudre, des flocons, des fibres, des fils, des bâtons, et des matériaux et des fils non métalliques.
- Dispositif de transfert de matériau souple selon la revendication 17, caractérisé en ce que le matériau non métallique est sélectionné dans le groupe consistant en du noir de carbone et des particules de graphite.
- Dispositif de transfert de matériau souple selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il comprend en outre une boucle de mise à la masse (19).
- Dispositif de transfert de matériau souple selon la revendication 19, caractérisé en ce que ladite boucle de mise à la masse (19) est fixée au tissu souple.
- Dispositif de transfert de matériau souple selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il comprend en outre une boucle de levage (17) fixée à l'élément de retenue externe (13).
- Dispositif de transfert de matériau souple selon les revendications 19 et 21, caractérisé en ce que ladite boucle de levage (17) est intégrée à la boucle de mise à la masse (19).
- Procédé de transfert de charge consistant à :prévoir un dispositif de transfert de matériau, le dispositif de transfert comprenant une doublure interne (10) souple, comportant une extrémité fermée et une extrémité ouverte ; un raccord sanitaire (12) fixé à l'extrémité ouverte de ladite doublure interne (10) souple ;prévoir un élément de retenue externe (13) en tissu entourant et intégré à ladite doublure interne (10) et une fenêtre (18) cousue ou scellée thermiquement à l'élément de retenue externe (13) en tissu pour l'observation de la charge contenue dans la doublure interne (10) souple ; etremplir le dispositif de transfert avec la charge.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US36853702P | 2002-04-01 | 2002-04-01 | |
| US368537P | 2002-04-01 | ||
| PCT/US2003/008114 WO2003084831A1 (fr) | 2002-04-01 | 2003-03-17 | Dispositif de chargement a confinement souple |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP1497191A1 EP1497191A1 (fr) | 2005-01-19 |
| EP1497191A4 EP1497191A4 (fr) | 2006-05-10 |
| EP1497191B1 true EP1497191B1 (fr) | 2009-09-02 |
Family
ID=28791891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP03711609A Expired - Lifetime EP1497191B1 (fr) | 2002-04-01 | 2003-03-17 | Dispositif de chargement a confinement souple |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20050081950A1 (fr) |
| EP (1) | EP1497191B1 (fr) |
| AT (1) | ATE441594T1 (fr) |
| AU (1) | AU2003214201A1 (fr) |
| CA (1) | CA2481033A1 (fr) |
| DE (1) | DE60329090D1 (fr) |
| WO (1) | WO2003084831A1 (fr) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7168459B2 (en) * | 2002-04-12 | 2007-01-30 | Hynetics Llc | Feed bags and methods of use |
| FR2915974B1 (fr) * | 2007-05-11 | 2009-07-10 | Isolateur Denominateur Commun | Conteneur souple de transfert et procede de fabrication. |
| EP3271003A4 (fr) * | 2015-03-20 | 2018-11-14 | Merck Sharp & Dohme Corp. | Dispositif de confinement et de transfert de composés hautement actifs ou sensibles |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3312337A (en) * | 1966-03-21 | 1967-04-04 | Continental Can Co | Protective package for frangible articles |
| GB1455874A (en) * | 1973-09-17 | 1976-11-17 | Nattrass Frank | Bulk material containers |
| US4159728A (en) * | 1977-03-12 | 1979-07-03 | Gummi-Kraus Gmbh | Hot water bag |
| US4817824A (en) * | 1986-12-08 | 1989-04-04 | Custom Packaging Systems, Inc. | Collapsible bulk container |
| US4996760A (en) * | 1988-09-30 | 1991-03-05 | Fabricated Metals, Inc. | Method of installing a flexible liner within the shell of a bulk material container |
| US5018877A (en) * | 1990-02-26 | 1991-05-28 | Union Carbide Chemicals And Plastics Technology Corporation | Packaging assembly for contaminable materials |
| CA2049550C (fr) * | 1991-05-30 | 2000-01-11 | Joseph Bunch | Methode de fabrication d'un sac a fenetre |
| DE9108091U1 (de) * | 1991-07-02 | 1991-09-12 | Empac Verpackungs GmbH & Co, 4407 Emsdetten | Gewebe mit ableitenden Bändchen |
| US5332495A (en) * | 1992-04-16 | 1994-07-26 | Williams Richard T | Connector apparatus |
| US5673509A (en) * | 1996-01-31 | 1997-10-07 | Gatewood, Jr.; Askew W. | Disposable rodent trap |
| JP3514980B2 (ja) * | 1998-09-04 | 2004-04-05 | 日本ユニカー株式会社 | コンテナ、コンテナ受入筒蓋、並びに取出・受入方法 |
| US6056440A (en) * | 1999-02-17 | 2000-05-02 | Nattrass; Peter J. | Sift proofing membrane for bulk lift bag and method |
| GB2354754A (en) * | 1999-09-30 | 2001-04-04 | Brendan Mckenna | Fluid transport container |
| CN1222839C (zh) * | 2000-01-07 | 2005-10-12 | 株式会社理光 | 粉体收纳容器,粉体排出装置及图像形成装置 |
| US6305845B1 (en) * | 2000-02-07 | 2001-10-23 | Grayling Industries, Inc. | Lined bulk bag |
-
2003
- 2003-03-17 AT AT03711609T patent/ATE441594T1/de not_active IP Right Cessation
- 2003-03-17 AU AU2003214201A patent/AU2003214201A1/en not_active Abandoned
- 2003-03-17 CA CA002481033A patent/CA2481033A1/fr not_active Abandoned
- 2003-03-17 EP EP03711609A patent/EP1497191B1/fr not_active Expired - Lifetime
- 2003-03-17 US US10/509,834 patent/US20050081950A1/en not_active Abandoned
- 2003-03-17 DE DE60329090T patent/DE60329090D1/de not_active Expired - Fee Related
- 2003-03-17 WO PCT/US2003/008114 patent/WO2003084831A1/fr not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| WO2003084831A1 (fr) | 2003-10-16 |
| AU2003214201A1 (en) | 2003-10-20 |
| ATE441594T1 (de) | 2009-09-15 |
| EP1497191A1 (fr) | 2005-01-19 |
| DE60329090D1 (de) | 2009-10-15 |
| EP1497191A4 (fr) | 2006-05-10 |
| US20050081950A1 (en) | 2005-04-21 |
| CA2481033A1 (fr) | 2003-10-16 |
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