EP0808286B1 - Sac pour materiau fluide et procede pour vider le sac - Google Patents

Sac pour materiau fluide et procede pour vider le sac Download PDF

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Publication number
EP0808286B1
EP0808286B1 EP96902353A EP96902353A EP0808286B1 EP 0808286 B1 EP0808286 B1 EP 0808286B1 EP 96902353 A EP96902353 A EP 96902353A EP 96902353 A EP96902353 A EP 96902353A EP 0808286 B1 EP0808286 B1 EP 0808286B1
Authority
EP
European Patent Office
Prior art keywords
bag
outlet port
flowable material
reinforcing member
wall
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
EP96902353A
Other languages
German (de)
English (en)
Other versions
EP0808286A1 (fr
Inventor
Harry Michael Fairbank
Ian Harris
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.)
Arlington Packaging Ltd
Original Assignee
Arlington Packaging Ltd
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 Arlington Packaging Ltd filed Critical Arlington Packaging Ltd
Publication of EP0808286A1 publication Critical patent/EP0808286A1/fr
Application granted granted Critical
Publication of EP0808286B1 publication Critical patent/EP0808286B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B65D88/00—Large containers
    • B65D88/16—Large containers flexible
    • B65D88/1612—Flexible intermediate bulk containers [FIBC]
    • B65D88/1668—Flexible intermediate bulk containers [FIBC] closures for top or bottom openings

Definitions

  • the present invention relates to containers, and is concerned particularly, although not exclusively, with containers of the type known as intermediate bulk containers, according to the preamble of claim 1.
  • IBCs intermediate bulk containers
  • the typical IBC comprises a box or frame within which is located a lining bag, which in use contains liquid to be stored or transported.
  • the second common method of discharge involves pumping out the liquid through a resealable opening at the top of the bag. Typically, this opening is also used for filling the bag with liquid.
  • a problem with both known methods is that some of the liquid remains in the bag and is difficult to discharge. This is both wasteful, and also may lead to problems when the bag is to be destroyed, particularly if the liquid comprises a toxic substance.
  • the problem of the residual liquid remaining in the bag may arise due to the walls of the bag itself (especially the sides) obstructing the outlet opening as the bag collapses. This problem is particularly pronounced when liquid of high viscosity is to be discharged from the bag, as the walls of the bag may be mare likely to be sucked into the outlet opening than the remaining liquid, under the action of the pump.
  • a bag for containing a flowable material comprising an outlet port through which flowable material may be discharged from the bag in use, and support means arranged in use to restrict movement of at least a portion of a wall of the bag in the region of the outlet port during discharge of the flowable material; characterised in that: said support means comprises a reinforcing member in the form of a thin plate mounted around the periphery of said outlet port, said reinforcing member having a width of at least three times width of the outlet port.
  • flowable material includes any flowable liquid or solid.
  • the term includes liquids, gels and solid material, such as granular material or powders.
  • Said portion of said wall is preferably restricted from moving inwardly. Said portion is preferably restricted from moving towards said outlet port, for example under the action of a suction force arranged to discharge the flowable material in use. Said portion is preferably restricted from moving into said outlet port.
  • Said portion of said wall is preferably adjacent said outlet port. Said portion of said wall preferably extends around said outlet port.
  • the support means is an integral part of the bag.
  • the support means is mounted on a surface of the bag in the region of the outlet port.
  • the support means comprises a reinforcing member suitably located around a periphery of the outlet port.
  • said reinforcing member is in the form of a circular disc.
  • a major plane of said reinforcing member preferably extends substantially parallel to said portion of said wall.
  • Said major plane of said reinforcing member is preferably in face to face contact with said portion of said wall.
  • Said major plane preferably extends in a direction which is transverse to, more preferably substantially perpendicular to, the direction of extent of said outlet port.
  • a diameter of the reinforcing member is preferably greater than the diameter of the outlet port by a factor of at least 3 and, more preferably, at least 3.5, and most preferably in the range 4 to 6.
  • the reinforcing member may be mounted on an inside surface of the bag.
  • the bag comprises plastics material.
  • the support means comprises plastics material.
  • the outlet port may be located on an upper wall of the bag in use, and is preferably located on a top side of the bag in use.
  • the bag may be provided with an inlet port through which the bag may receive flowable material in use.
  • the outlet port and the inlet port comprise a common port.
  • the bag includes a single port which is said outlet port described herein.
  • the bag may be provided with a discharge device according to any statement herein.
  • the discharge device comprises a connecting portion arranged, in use, to make a connection with the outlet port of the bag and a tube portion arranged, in use, to extend inwardly of the bag, through which tube portion the flowable material is arranged, in use, to pass during discharge of the flowable material from the bag.
  • the tube portion and the connecting portion are connected together or are integral.
  • the tube portion comprises a first end which is, in use, located outside the bag, and a second end which is, in use, located within the bag.
  • the second end may comprise a closed end.
  • Said tube portion is preferably arranged for the passage of flowable material between said second end and said first end in a first direction and said tube portion preferably includes at least one aperture arranged for the passage of flowable material into said tube portion in a direction which is transverse, preferably substantially perpendicular, to said first direction.
  • said at least one aperture is located in a side wall of the tube portion.
  • Said side wall preferably extends in said first direction.
  • a plurality of apertures is provided.
  • One, or preferably each, aperture may be located towards the second end of the tube portion.
  • One, or preferably each, aperture may be located adjacent said second end.
  • the device is provided with an engagement portion arranged, in use, to be attached to or integral with the connecting portion, and to extend outwardly with respect to the bag.
  • the engagement portion is preferably arranged, in use, to engage a hose.
  • the engagement portion may be shaped so as to engage a hose by means of a cam fitting in use.
  • the engagement portion and/or the connecting portion and/or the tube portion may comprise metal, and preferably comprise stainless steel.
  • the tube portion may comprise a substantially hollow cylinder.
  • the cylinder portion may be arranged, in use, to threadably connect to an outlet port of the bag.
  • the invention also includes a method of discharging flowable material from a bag, the method comprising connecting a discharge device to an outlet port of the bag, the discharge device comprising a tube portion which extends inwardly of the bag, and pumping out flowable material from the bag, whilst restricting movement of at least a portion of a wall of the bag in the region of the outlet port using a reinforcing member in the form of a thin plate mounted around the periphery of said outlet port, said reinforcing member having a width of at least three times the width of the outlet port.
  • the method may include using the tube portion of the discharge device to maintain the outlet port of the bag and at least a portion of at least one wall of the bag in spaced apart relationship.
  • the bag comprises restrictor means for restricting flexing of the bag in a region of the bag substantially opposite said outlet port.
  • Said restrictor means is preferably an integral component of the bag and is, preferably, fixed to the bag in said region of the bag substantially opposite said outlet port.
  • Said restrictor means preferably comprises a thin plate, preferably in the form of a disc.
  • a major plane of said restrictor means preferably extends substantially parallel to said region of the bag which it restricts.
  • Said restrictor means is preferably in face-to-face contact with said region of the bag.
  • Said restrictor means is preferably made out of a plastics material.
  • the bag is arranged such that, in use, during discharge of fluid, the outlet port moves towards said region of the bag, suitably so that said outlet port is superimposed upon said region.
  • the bag includes a discharge device extending through the outlet port, said bag is preferably arranged for the discharge device to be superimposed upon, suitably to rest upon, said region during discharge of fluid.
  • the invention may include any combination of the features or limitations referred to herein.
  • an outlet port of a bag 11 for containing a liquid there is shown generally at 10 an outlet port of a bag 11 for containing a liquid. Only an upper wall of the bag 11 is shown, which bag comprises plastics material.
  • the outlet port 10 comprises an aperture 12 (shown only in Figure 1) over which is mounted a threaded port 13 which may typically be of nylon or other suitable material and which is welded to the body of the bag 11 during manufacture.
  • a threaded port 13 which may typically be of nylon or other suitable material and which is welded to the body of the bag 11 during manufacture.
  • an annular plastic reinforcing member 14 Around the aperture 12 on an inside surface of the bag 11 is an annular plastic reinforcing member 14 which is also welded to the bag during manufacture.
  • the diameter of the outlet port may be 2 or 3 inches (about 5cm to 7.6cm) and the diameter of the reinforcing member may be 12 inches (about 30.5cm).
  • the discharge device 15 Threadably mounted on the port 13 is a discharge device 15 through which liquid is discharged in use.
  • the discharge device 15 comprises a threaded portion 15a which, in use, engages the port 13, a hollow tube portion 15b which, in use, projects into the bag 11, and a coupling connector 15c which, in use, is coupled to a hose (not shown) by a conventional cam engagement.
  • the hollow tube At the end of portion 15b furthest from the port 13, the hollow tube has an end plate 16 closing the tube, above which are located a plurality of holes 15d around the wall of the tube.
  • the discharge device 15 is manufactured from stainless steel either as a complete unit, or else with the tube portion 15b welded on to the threaded portion 15a.
  • the discharge device 15 In use, when it is required to discharge the liquid contents from a bag 11, which is typical of the liner bags used in a frame or box as an intermediate bulk container (IBC), the discharge device 15 is connected to the port 13 of the bag 11. A suitable flexible hose (not shown) is then coupled to the portion 15c of the device 15. The liquid (not shown) is then drawn from the bag 11 through the device 15 using a pump (not shown).
  • a pump not shown
  • the liquid in the bag 11 is drawn into the device 15 through the holes 15d.
  • the weight of the device 15 together with the weight of the hose, maintains the tube portion 15b of the device 15 in contact with the liquid.
  • the plate 16 comes to rest on the bottom (not shown) of the bag 11. The plate 16 prevents the material comprising the lower portion (not shown) of the bag 11 from becoming drawn into the tube 15b under the action of the pump.
  • the material comprising the upper portion (not shown) of the bag 11 is inhibited from blocking the holes 15d by the reinforcing member 14. The remaining liquid in the bag is therefore provided with an unobstructed path into the tube 15b and thus out of the port 13.
  • the bag may include a plastics disc at its lower end onto which the device 15 may come to rest during discharge from the bag.
  • the provision of such a plastics disc may make it substantially impossible for the bag to become cupped around the lower end of tube 15.
  • the apparatus described above requires minimal handling of the bag during a discharge operation, as compared with prior techniques, and since the device 15 has no moving parts or seal labyrinths, the chances of contamination of the liquid in the bag are lessened or removed completely.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bag Frames (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)

Claims (16)

  1. Sac destiné à contenir une matière pouvant s'écouler, le sac (11) comportant un orifice de sortie (10) à travers lequel la matière pouvant s'écouler peut être vidée du sac lors de l'utilisation, et des moyens de support prévus lors de l'utilisation pour limiter le mouvement d'au moins une partie d'une paroi du sac dans la zone de l'orifice de sortie pendant le vidage de la matière pouvant s'écouler;
    caractérisé en ce que
    lesdits moyens de support comportent un élément de renfort (14) sous la forme d'une plaque mince montée autour de la périphérie dudit orifice de sortie (12), ledit élément de renfort (14) ayant une largeur d'au moins trois fois la largeur de l'orifice de sortie (12).
  2. Sac selon la revendication 1, dans lequel ladite partie est limitée dans son déplacement vers ledit orifice de sortie sous l'action d'une force d'aspiration prévue pour vider la matière pouvant s'écouler, pendant l'utilisation.
  3. Sac selon la revendication 1 ou 2, dans lequel lesdits moyens de support (14) sont montés sur une surface du sac dans une zone de l'orifice de sortie (10).
  4. Sac selon la revendication 3, dans lequel un plan principal dudit élément de renfort (14) s'étend sensiblement parallèlement à ladite partie de ladite paroi.
  5. Sac selon la revendication 4, dans lequel ledit plan principal dudit élément de renfort (14) est en contact face à face avec ladite partie de ladite paroi.
  6. Sac selon l'une quelconque des revendications 1 à 5, dans lequel ledit élément de renfort (14) est monté sur une surface intérieure du sac (11).
  7. Sac selon l'une quelconque des revendications 1 à 6, dans lequel ledit élément de renfort est un disque circulaire.
  8. Sac selon l'une quelconque des revendications 1 à 7, dans lequel ledit élément de renfort a un diamètre plus grand que le diamètre de l'orifice de sortie (12) d'un facteur d'au moins 3,5.
  9. Sac selon l'une quelconque des revendications 1 à 8, dans lequel ledit élément de renfort a un diamètre plus grand que le diamètre de l'orifice de sortie (12) d'un facteur dans la plage de 4 à 6.
  10. Sac selon l'une quelconque des revendications précédentes, dans lequel ledit orifice de sortie (12) se trouve sur une paroi supérieure du sac (11).
  11. Sac selon l'une quelconque des revendications 1 à 10, comportant un dispositif de vidage ayant une partie de raccordement prévue, lors de l'utilisation, pour effectuer un raccordement avec ledit orifice de sortie (12) du sac (11) et une partie de tube prévue, lors de l'utilisation, pour s'étendre vers l'intérieur du sac, à travers laquelle partie de tube (15) la matière pouvant s'écouler est prévue, lors de l'utilisation, pour passer pendant le vidage de la matière pouvant s'écouler du sac (11).
  12. Sac selon la revendication 11, dans lequel la partie de tube (15) comporte une première extrémité (15c) qui, lors de l'utilisation, se trouve à l'extérieur du sac (11), et une deuxième extrémité (15b) qui, lors de l'utilisation, se trouve à l'intérieur du sac.
  13. Sac selon la revendication 12, dans lequel ladite deuxième extrémité est une extrémité fermée (16).
  14. Sac selon l'une quelconque des revendications 11 à 13, dans lequel ledit tube (15) est prévu pour le passage de la matière pouvant s'écouler entre ladite deuxième extrémité et ladite première extrémité dans une première direction et ledit tube comprend au moins une ouverture (15d) prévue pour le passage de la matière pouvant s'écouler dans ladite partie de tube dans une direction qui est transversale à ladite première direction.
  15. Sac selon l'une quelconque des revendications 11 à 14, dans lequel ladite au moins une ouverture (15d) se trouve dans une paroi latérale de la partie de tube (15).
  16. Procédé de vidage d'une matière pouvant s'écouler d'un sac (11), le procédé comportant le fait de raccorder un dispositif de vidage à un orifice de sortie (12) du sac, le dispositif de vidage comportant une partie de tube (15) qui s'étend vers l'intérieur du sac (11), et de pomper la matière pouvant s'écouler hors du sac, tout en limitant le mouvement d'au moins une partie d'une paroi du sac dans la zone de l'orifice de sortie (12) en utilisant un élément de renfort (14) sous la forme d'une plaque mince montée autour de la périphérie dudit orifice de sortie (12), ledit élément de renfort ayant une largeur d'au moins trois fois la largeur de l'orifice de sortie (12).
EP96902353A 1995-02-25 1996-02-14 Sac pour materiau fluide et procede pour vider le sac Expired - Lifetime EP0808286B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB9503848 1995-02-25
GBGB9503848.5A GB9503848D0 (en) 1995-02-25 1995-02-25 Improvements in or relating to containers
PCT/GB1996/000313 WO1996026868A2 (fr) 1995-02-25 1996-02-14 Sac pour matiere fluide

Publications (2)

Publication Number Publication Date
EP0808286A1 EP0808286A1 (fr) 1997-11-26
EP0808286B1 true EP0808286B1 (fr) 2000-01-12

Family

ID=10770277

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96902353A Expired - Lifetime EP0808286B1 (fr) 1995-02-25 1996-02-14 Sac pour materiau fluide et procede pour vider le sac

Country Status (6)

Country Link
EP (1) EP0808286B1 (fr)
AU (1) AU4669796A (fr)
DE (1) DE69606164T2 (fr)
GB (2) GB9503848D0 (fr)
WO (1) WO1996026868A2 (fr)
ZA (1) ZA961324B (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1473246B1 (fr) 2003-04-28 2006-05-31 Coster Tecnologie Speciali S.P.A. Ensemble comportant une vanne de distribution et une poche liée étanchement avec celle-ci
US20090020183A1 (en) * 2007-02-21 2009-01-22 Terence Edward Denis Kelly Flexible tanks for transporting bulk products
JP5707845B2 (ja) * 2010-10-21 2015-04-30 凸版印刷株式会社 注出口部材

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4240482A (en) * 1978-03-17 1980-12-23 Duni Bila Ab Bag-like liquid containers, especially for medical treatment
WO1981001992A1 (fr) * 1980-01-10 1981-07-23 Leif Einar Stern Dispositif d'accouplement pour la connection entre une sortie de materiau et un empaquetage
EP0322980A1 (fr) * 1987-12-23 1989-07-05 Chemische Industrie Filoform B.V. Procédé pour adapter un jonction de raccordement à une poche et dispositif pour sa mise en oeuvre
WO1992000895A1 (fr) * 1990-07-07 1992-01-23 Minnesota Mining And Manufacturing Company Systeme servant a retirer une matiere d'une poche
US5340218A (en) * 1993-03-19 1994-08-23 Transac, Inc. Bulk storage bag with remotely openable discharge spout

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4375864A (en) * 1980-07-21 1983-03-08 Scholle Corporation Container for holding and dispensing fluid
US4524458A (en) * 1983-11-25 1985-06-18 Pongrass Robert G Moisture responsive stiffening members for flexible containers
DK363487A (da) * 1987-07-13 1989-01-14 Nielsen Emballage Draenorgan til udloebsaabningen i tuden i en sammensynkelig plastfolie- eller plastfolielaminatpose til en saakaldt pose-i-karton emballage
DE3837462A1 (de) * 1988-11-04 1990-05-10 Sieger Plastic Gmbh Vorrichtung zum hygienisch einwandfreien befuellen und verschliessen von behaeltern
US4978025A (en) * 1988-11-09 1990-12-18 Alizol S.A. Standable bag having an internal armature
US4998990A (en) * 1988-12-20 1991-03-12 The Coca-Cola Company Collapsible bag with evacuation passageway and method for making the same
US4934654A (en) * 1989-11-09 1990-06-19 Shippers Paper Products Company Valve for bulk container
EP0453172B1 (fr) * 1990-04-11 1995-07-12 Dai Nippon Insatsu Kabushiki Kaisha Récipient pour liquides et son orifice de sortie
US5240218A (en) * 1991-10-23 1993-08-31 Loma Linda University Medical Center Retractable support assembly
WO1993014007A1 (fr) * 1992-01-20 1993-07-22 Rheem Australia Limited Recipient intermediaire pour produits en vrac

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4240482A (en) * 1978-03-17 1980-12-23 Duni Bila Ab Bag-like liquid containers, especially for medical treatment
WO1981001992A1 (fr) * 1980-01-10 1981-07-23 Leif Einar Stern Dispositif d'accouplement pour la connection entre une sortie de materiau et un empaquetage
EP0322980A1 (fr) * 1987-12-23 1989-07-05 Chemische Industrie Filoform B.V. Procédé pour adapter un jonction de raccordement à une poche et dispositif pour sa mise en oeuvre
WO1992000895A1 (fr) * 1990-07-07 1992-01-23 Minnesota Mining And Manufacturing Company Systeme servant a retirer une matiere d'une poche
US5340218A (en) * 1993-03-19 1994-08-23 Transac, Inc. Bulk storage bag with remotely openable discharge spout

Also Published As

Publication number Publication date
AU4669796A (en) 1996-09-18
DE69606164T2 (de) 2000-08-24
GB2298185A8 (en) 1998-06-04
GB2298185B (en) 1999-07-07
GB9603101D0 (en) 1996-04-10
GB2298185A (en) 1996-08-28
DE69606164D1 (de) 2000-02-17
WO1996026868A2 (fr) 1996-09-06
GB9503848D0 (en) 1995-04-19
ZA961324B (en) 1996-08-27
WO1996026868A3 (fr) 1996-11-21
EP0808286A1 (fr) 1997-11-26

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