EP0278670A2 - Zusammendrückbare Behältnisse - Google Patents

Zusammendrückbare Behältnisse Download PDF

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Publication number
EP0278670A2
EP0278670A2 EP88300917A EP88300917A EP0278670A2 EP 0278670 A2 EP0278670 A2 EP 0278670A2 EP 88300917 A EP88300917 A EP 88300917A EP 88300917 A EP88300917 A EP 88300917A EP 0278670 A2 EP0278670 A2 EP 0278670A2
Authority
EP
European Patent Office
Prior art keywords
container
bag
flexible member
container according
spout
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.)
Withdrawn
Application number
EP88300917A
Other languages
English (en)
French (fr)
Other versions
EP0278670A3 (de
Inventor
Kenneth Corrugated Products Ltd. Tindle
John Corrugated Products Ltd. Haggart
David Corrugated Products Ltd. Gillespie
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.)
Corrugated Products Ltd
Original Assignee
Corrugated Products 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 Corrugated Products Ltd filed Critical Corrugated Products Ltd
Publication of EP0278670A2 publication Critical patent/EP0278670A2/de
Publication of EP0278670A3 publication Critical patent/EP0278670A3/de
Withdrawn legal-status Critical Current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
    • 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
    • B65D75/54—Cards, coupons, or other inserts or accessories
    • 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
    • B65D2231/00—Means for facilitating the complete expelling of the contents
    • B65D2231/001—Means for facilitating the complete expelling of the contents the container being a bag
    • B65D2231/002—Means for facilitating the complete expelling of the contents the container being a bag comprising strips forming channels or liquid passageways

Definitions

  • the present invention concerns improvements in or relating to collapsible containers especially but not exclusively bags intending to store and dispense liquids.
  • Plastic material bags contained within a more rigid outer container for example a cardboard carton, are used on an increasingly large scale to store and dispense liquids. They exhibit many advantages over conventional rigid containers but suffer from certain disadvantages.
  • the bags are designed to collapse on emptying and depending upon the circumstances of use the collapse is not uniform across the whole area of the bag.
  • the bag can collapse along a line which separates the dispensing spout fixed in one of its sides adjacent to one edge or corner from another area of the bag trapping a quantity of liquid and preventing all the contents of the bag from being dispensed.
  • This problem can be particularly serious where the contents of the bag are being pumped out by way of a spout situated at the top of the bag as the reduction in pressure within the bag can cause the bag to collapse around the spout thereby hindering or preventing efficient dispensing.
  • a collapsible container having a dispensing spout and a flexible member fixed by at least one of its ends within the container during manufacture of the container, the flexible member being positioned to at least partially face the dispensing spout across the interior of the container and having at least one protrusion extending from a side thereof which; on collapse of the container on dispensing its contents maintains a liquid passage within the container communicating with the spout.
  • the container is a plastics material bag.
  • the bag comprises a seamless tube or two sheets seamed at their longitundinal edges, and closed at each end to form a rectangular bag by a transverse seal.
  • the flexible member is fitted within the bag prior to the sealing of its ends by fusion and each end of the flexible member is fused into the seal.
  • each protrusion extends from the side of the flexible member facing the spout.
  • the flexible member comprises two superposed sheets of a plastics material one of which is planar, the other having a base with a plurality of spaced dimples projecting therefrom.
  • the dimples are air-filled.
  • the flexible member comprises a strip, the width of which is at least equal to the diameter of the dispensing spout.
  • the flexible member is a sheet extending over an entire side of the bag.
  • the flexible member is a thermoplastic extruded strip having continuous or intermittent ribs projecting from one side thereof.
  • Bags intended to carry liquids for use in bag-in-box applications are generally manufactured in a continuous web 10 from a tube of laminated plastics and metal foil which is flattened and formed into bags by providing spaced transverse seals 12 by fusion or adhesion along which cuts are eventually made to separate the web in to individual bags.
  • Each bag has a dispensing hole 14 formed in one side thereof to which is fitted a dispensing spout 16 which receives a dispensing tap (not shown).
  • the bag is filled with liquid by any of a number of known means which do not form part of the present invention and will not be described.
  • a flexible strip 18 which has a width slightly greater than the diameter of the dispensing spout 14 and extends from one end of the bag to the other.
  • the strip is formed from a continuous member which is located within the tube and is conveniently manufactured from a thermoplastics material which is compatible with thermoplastics material of the bag so that when the bag is sealed the ends of the strip are fused in the sealed ends of the bag.
  • the strip is formed from two plastics material sheets 20, 22 which are formed into what is known as a "bubble film".
  • Figs. 2 and 3 show that the bubble film comprises a planar plastics first sheet 20 to which is attached (by fusion) a further planar sheet 22 in which is formed a plurality of air-filled dimples 24, the dimples being spaced from each other.
  • the flexible strip When the bag is in the filled condition as shown in Fig. 2, the flexible strip normally lies alongside the side 26 of the bag which does not include the dispensing spout 16.
  • Plastics bags of this nature are designed to collapse when the liquid is dispensed therefrom as no air is allowed to enter into the bag to replace the dispensed liquid. It is possible therefore for the sides 26 and 28 of the bag to come together on collapse and to trap a pocket of liquid by virtue of a seal formed between the sides 26 and 28.
  • the upstanding dimples 24 from the flexible strip will support the side 28 of the bag including the dispensing spout and as the dimples are spaced apart there will remain the passage for liquid along the strip between the dimples. It will be realised that the spacing between the dimples must be such that the side 28 of the bag cannot appreciably collapse into the space between the dimples thereby closing off the fluid passages along the strip.
  • the strip 18 can extend across the entire width of the bag and in a further modification one side of the bag, both sides of the bag or a strip of one or both sides of the bag can take the form of a bubble film.
  • the flexible strip can take the form of a thermoplastic extruded strip provided with at least two continuous ribs up-standing from the face which, in use, faces the dispensing spout.
  • gaps can be provided therein at spaced intervals along the length of the rib.
  • the air-filled dimples are provided on the face of the strip facing away from the spout.
  • the strip does not extend across the whole width of the spout and/or perforations are provided in the strip to permit liquid to be dispensed through the spout.
  • a modified bag may be utilised. This is made up from two sheets seamed along their longitudinal edges to form a tube.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bag Frames (AREA)
  • Packages (AREA)
EP88300917A 1987-02-06 1988-02-03 Zusammendrückbare Behältnisse Withdrawn EP0278670A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8702749 1987-02-06
GB878702749A GB8702749D0 (en) 1987-02-06 1987-02-06 Collapsible containers

Publications (2)

Publication Number Publication Date
EP0278670A2 true EP0278670A2 (de) 1988-08-17
EP0278670A3 EP0278670A3 (de) 1989-06-14

Family

ID=10611855

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88300917A Withdrawn EP0278670A3 (de) 1987-02-06 1988-02-03 Zusammendrückbare Behältnisse

Country Status (2)

Country Link
EP (1) EP0278670A3 (de)
GB (1) GB8702749D0 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1076302C (zh) * 1997-02-10 2001-12-19 理想科学工业株式会社 使用后易折叠为扁平形状的流体物料容器
US6968669B2 (en) 2002-11-06 2005-11-29 Lancer Partnership Ltd. Flexible packaging
US7600360B2 (en) 2002-04-19 2009-10-13 Lancer Partnership Ltd, Dorothy Linda Schroeder as Trustee for three trusts, and SMJCGF, LLP Flexible packaging
US9629955B2 (en) 2012-10-12 2017-04-25 Smiths Medical Asd, Inc. Drug or fluid delivery devices

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0138620A2 (de) * 1983-10-17 1985-04-24 The Coca-Cola Company Zusammendrückbarer Behälter und Verfahren zu seiner Herstellung
EP0156627A2 (de) * 1984-03-22 1985-10-02 Scholle Corporation Ausflussführng für Vakuumsack
WO1985004383A1 (en) * 1984-03-29 1985-10-10 Liqui-Box Corporation Insert for a collapsible container

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0138620A2 (de) * 1983-10-17 1985-04-24 The Coca-Cola Company Zusammendrückbarer Behälter und Verfahren zu seiner Herstellung
EP0156627A2 (de) * 1984-03-22 1985-10-02 Scholle Corporation Ausflussführng für Vakuumsack
WO1985004383A1 (en) * 1984-03-29 1985-10-10 Liqui-Box Corporation Insert for a collapsible container

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1076302C (zh) * 1997-02-10 2001-12-19 理想科学工业株式会社 使用后易折叠为扁平形状的流体物料容器
US7600360B2 (en) 2002-04-19 2009-10-13 Lancer Partnership Ltd, Dorothy Linda Schroeder as Trustee for three trusts, and SMJCGF, LLP Flexible packaging
US6968669B2 (en) 2002-11-06 2005-11-29 Lancer Partnership Ltd. Flexible packaging
US9629955B2 (en) 2012-10-12 2017-04-25 Smiths Medical Asd, Inc. Drug or fluid delivery devices

Also Published As

Publication number Publication date
EP0278670A3 (de) 1989-06-14
GB8702749D0 (en) 1987-03-11

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Effective date: 19891215