US3650458A - Opening arrangement on packages - Google Patents

Opening arrangement on packages Download PDF

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Publication number
US3650458A
US3650458A US82346A US8234670A US3650458A US 3650458 A US3650458 A US 3650458A US 82346 A US82346 A US 82346A US 8234670 A US8234670 A US 8234670A US 3650458 A US3650458 A US 3650458A
Authority
US
United States
Prior art keywords
package
slot
opening arrangement
accordance
flap
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
US82346A
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English (en)
Inventor
Hans Anders Rausing
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 Pak AB
Original Assignee
Tetra Pak Int
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 Pak Int filed Critical Tetra Pak Int
Application granted granted Critical
Publication of US3650458A publication Critical patent/US3650458A/en
Assigned to AKTIEBOLAGET TETRA PAK reassignment AKTIEBOLAGET TETRA PAK CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). (SWEDEN) Assignors: TETRA PAK INTERNATIONAL AKTIEBOLAG
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
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/02—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding or erecting a single blank to form a tubular body with or without subsequent folding operations, or the addition of separate elements, to close the ends of the body
    • B65D5/06—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding or erecting a single blank to form a tubular body with or without subsequent folding operations, or the addition of separate elements, to close the ends of the body with end-closing or contents-supporting elements formed by folding inwardly a wall extending from, and continuously around, an end of the tubular body
    • B65D5/064—Rectangular containers having a body with gusset-flaps folded outwardly or adhered to the side or the top of the container
    • B65D5/065—Rectangular containers having a body with gusset-flaps folded outwardly or adhered to the side or the top of the container with supplemental means facilitating the opening, e.g. tear lines, tear tabs
    • 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
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/42—Details of containers or of foldable or erectable container blanks
    • B65D5/70—Break-in flaps, or members adapted to be torn-off, to provide pouring openings
    • B65D5/708—Separate tearable flexible elements covering a discharge opening of a container, e.g. adhesive tape

Definitions

  • the invention relates to an opening arrangement on a package consisting of a tube sealed at its ends and preferably of parallelepiped shape with double-walled triangular flaps which project from the ends of the package and are folded in against its walls, one of the flaps forming part of an opening arrangement and exhibiting a sealing strip which extends onto the top end wall of the package and which is intended to cover a discharge opening.
  • the discharge opening is a slot formed in the upper end wall of the package which slots extends beyond the end edge of the package which adjoins the said flap, and provides a pouring edge which is constituted by an edge of the package.
  • This invention relates to an opening arrangement on a package consisting of a tube sealed at its ends and preferably of parallelepiped shape with double-walled triangular flaps made in the course of the sealing operation which project from the ends of the package and are folded in against its walls, whereby one of the flaps which is folded in against a side wall forms part of the opening arrangement and exhibits a sealing strip which extends onto the top end wall of the package and which is intended to cover a discharge opening.
  • Quadrangular packages of this kind are used for the package of both solid, powdered or granular goods and liquids, for instance liquid dairy products.
  • Several different proposals have been put forward for opening arrangements for such packages, and these proposals have as a rule had the aim of achieving easy-to-open opening arrangements. In spite of this, opening of the packages has been relatively difficult and comparatively complicated, and the risk ofsplash and spillage, as well as the risk of dripping down the side of the package, have been great.
  • the opening arrangement in accordance with the invention has also been created with the aim of achieving an easy-toopen package, but its primary object is to combine ease of opening with the possibility of pouring from the package in a compact jet directed straight ahead.
  • this opening arrangement is very simple from the production point of view.
  • the opening arrangement in accordance with the invention has therefore the characteristics that the discharge opening is a slot formed in the upper end wall of the package, said slot extending beyond the end edge adjoining the flap which includes a sealing strip, said slot providing a pouring edge of the package itself.
  • a quadrangular package of the kind specified above is often made from a web-shaped basis material consisting of paper or of a combination of paper and a metal foil with an intermediate plastic layer.
  • the package is produced by first forming the packaging material into a tube, after which the tube is divided into cushion-shaped packages by means of flatpressing and transverse sealing in narrow transverse zones, which packages are separated from another by a cut along the said sealing zones, filling of a package taking place between two subsequent transverse seals.
  • the excess material which for geometrical reasons cannot be incorporated into the package shapes specified is formed into mainly triangular double-walled corner flaps, of which those projections from the end of the package where the opening is situated are usually sealed against the side wall adjacent to the respective flap, while the flaps projecting from the bottom end of the package are usually sealed to the adjacent end wall.
  • the quadrangular package shown in the Figure has side walls 1 and 2 and end walls 3.
  • the end walls are traversed by fins 4 which are formed in the course of the sealing operation and which are folded down against the end walls 3.
  • the fins 4 also extend over the four double-walled triangular flaps 5 formed during the forming operation, of which only one is shown in the Figure. The others are folded down against the respective adjacent end walls and/or side walls.
  • the doublewalled flap 5 shown in the Figure can thus be said to exhibit a top and a bottom" wall, the top wall being a part of the end wall 3 extended by excess material and the bottom wall a part of the side wall 2 extended by excess material.
  • the double-walled flap 5 is folded down against the side wall 2 in such a way that the top wall of the flap, in the fold line, forms an end edge 6 of the package.
  • the bottom wall forms an edge 7 situated below the end edge 6.
  • the package further exhibits a discharge opening 8 which consists of a slot formed in the end wall 3 of the package.
  • a discharge opening 8 which consists of a slot formed in the end wall 3 of the package.
  • the slot formed in the end wall 3 must, as shown in the Figure, extend beyond the end edge 6 of the package, i.e., that the top wall of the flap 5 is also slotted, at least partially.
  • the fold edge 7 situated below the end edge 6 between the bottom wall of the flap and the side wall 2 will be exposed in the slot 8.
  • the said fold edge 7 constitutes a pouring edge when the contents of the package are poured out.
  • this edge is used as a pouring edge, the contents of the package can be poured out in a well-directed jet and without splash and spillage. It has namely been difficult to achieve this in earlier opening arrangements which consist of a slot formed in the wall of the package.
  • the discharge opening 8 shown in the Figure has a generally rectangular shape and is positioned parallel to the fin 4 folded down against the end wall 3.
  • the discharge opening 8 can have any shape that is suitable. It is preferable however if the part ofthe slot 8 situated in the flap 5 does not extend far from the end edge 6 of the package but only for such a distance that an advantageous pouring edge 7 is obtained. Furthermore, the part of the slot 8 situated in the end wall 3 should be elongated so that air can flow into the package when its contents are being poured out. It is possible however to provide a separate opening for this purpose in the end wall 3, possible opening is indicated in the Figure by a discontinuous line and the reference No. 13.
  • the wall of the package may consist of a number of material layers 11 and 12.
  • the outer layer 11 is the patent material referred to earlier.
  • the inner layer 12 may conveniently consist of a lining of thermoplastic material which may for example be laminated onto the strip of parent material layer when this is processed into a packaging material.
  • Provision of a package of the kind specified with an inner thermoplastic layer has its advantages in that the material itself is liquid-tight and that it makes possible liquid-tight seals which can be accomplished in a simple way by pressing together, while heat simultaneously is being supplied, two mating material surfaces each coated with a layer of thermoplastic, whereby the coating layers fuse together along the zones subjected to pressure and heat. Should it for some reason be considered more advantageous, however, to glue together the sealing joints in such packages, this naturally is also possible.
  • the top wall surfaces of the doublewalled flap 5 which are turned towards one another are made to adhere to one another, at least in a zone at the end of the slot 8.
  • the said adhesion can be accomplished by heat sealing in the zone in question.
  • the extent of the sealed zone should not be less than the width of the slot as shown in the Figure, where such a sealed zone is shown by the reference No. 14.
  • the sealed zone 14 must extend around the slot 8.
  • the sealing zone is situated over the whole width of the flap 5, parallel to the end edge 6 of the package. In this case, the end 9 of the slot 8 is also parallel to the end edge 6.
  • a sealing strip 10 to cover the opening, whereby the strip may for instance have the shape shown by a chain line in the Figure.
  • the sealing strip which may for instance consist of tough paper, plastic, metal foil or a combination of these materials, is attached to the package, and in particular to the area around the slot, by means of gluing, heat sealing, or some other suitable measure.
  • the sealing strip is attached or sealed also, or only to that part of the lining which covers the discharge opening.
  • one part of the sealing strip 10 is not attached firmly to the package, with the aim of providing a flap that can be gripped, since, when the discharge opening 8 is to be uncovered, it is most convenient to remove the sealing strip from the package by tearing it off.
  • Opening arrangement on a package consisting of a tube sealed at its ends and preferably of parallelepiped shape with double-walled triangular flaps 5 made in the course of the sealing operation which project from the ends of the package and are folded in against its walls, whereby one of the flaps which is folded in against a side wall 2 is to form part of the opening arrangement and exhibits a sealing strip which extends onto the top end wall 3 of the package and which is intended to cover a discharge opening 8, characterized by the discharge opening being a slot formed in the upper end wall of the package which slot extends beyond the end edge 6 of the package which adjoins the said flap, whereby the package exhibits a pouring edge 7 which is constituted by the edge of the package, formed by folding, which is uncovered in the slot and is situated between the bottom wall of the flap and the side wall of the package against which the said flap is folded in.
  • thermoplastic film lines the package and the sealing strip 10 is sealed to said thermoplastic film covering the slot 8.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cartons (AREA)
  • Packages (AREA)
US82346A 1969-10-20 1970-10-20 Opening arrangement on packages Expired - Lifetime US3650458A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE1433669A SE332386C (sv) 1969-10-20 1969-10-20 Öppningsanordning vid förpackningar

Publications (1)

Publication Number Publication Date
US3650458A true US3650458A (en) 1972-03-21

Family

ID=20298924

Family Applications (1)

Application Number Title Priority Date Filing Date
US82346A Expired - Lifetime US3650458A (en) 1969-10-20 1970-10-20 Opening arrangement on packages

Country Status (3)

Country Link
US (1) US3650458A (sv)
FR (1) FR2064438B1 (sv)
SE (1) SE332386C (sv)

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3795359A (en) * 1971-11-19 1974-03-05 Tetra Pak Int Parallellepipedic package
US3924008A (en) * 1971-06-25 1975-12-02 Ici Ltd Flexible pouches for carbonated beverages
US4101051A (en) * 1975-05-09 1978-07-18 Wilhelm Reil Packaging means
US4126263A (en) * 1976-07-08 1978-11-21 Tetra Pak International Ab Packing container provided with opening arrangement
US4223789A (en) * 1977-12-24 1980-09-23 Tetra Pack Developpement S.A. Opening means for a packaging means of flexible material
US4655387A (en) * 1983-02-07 1987-04-07 Tetra Pak International Ab Packing container provided with a sine curve tear-up opening arrangement
US4705197A (en) * 1986-07-29 1987-11-10 International Paper Company Pour spout for containers
US4798295A (en) * 1986-11-13 1989-01-17 Ab Tetra Pak Packing container for liquid contents
US4798296A (en) * 1986-03-26 1989-01-17 Ab Tetra Pak Packing container provided with a reclosable opening arrangement
US4819839A (en) * 1984-03-23 1989-04-11 Tetra Pak International Ab Opening arrangement on packing containers
US4989780A (en) * 1984-08-06 1991-02-05 Owens-Illinois Plastic Products Inc. Blank for sealed carton with integral reclosable pour-out spout
US5133497A (en) * 1990-05-23 1992-07-28 Dipl. - Physiker Lutz H. Prufer Container
US5150833A (en) * 1992-03-09 1992-09-29 Hong Pi Lien Paper package for beverage
US5694746A (en) * 1994-12-20 1997-12-09 Chung; Yun H. Paperboard package and method for forming same
US5938107A (en) * 1996-03-21 1999-08-17 Tetra Laval Holdings & Finance S.A. Packaging container and a blank for producing the same
US6443357B1 (en) * 1997-11-19 2002-09-03 Tetra Laval Holdings & Finance, S.A. Packaging case and packaging material therefor
US20040108371A1 (en) * 2002-12-06 2004-06-10 Tetra Laval Holdings & Finance S.A. Opening arrangement, packaging and method of providing a packaging with an opening arrangement
US7191931B2 (en) 2002-12-06 2007-03-20 Tetra Laval Holdings & Finance S.A. Opening arrangement, packaging and method of providing a packaging with an opening arrangement
WO2010144976A1 (pt) * 2009-06-17 2010-12-23 Wellinthon Silva Gabriel Suspiro para embalagem de líquidos para consumo: sucos, leite, leite fermentado, achocolatado, água de côco e outros.

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4789066A (en) * 1983-11-25 1988-12-06 Ex-Cell-O Corporation Container with protective seal and tear strip

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2725173A (en) * 1949-06-13 1955-11-29 Joseph A O'reilly Paper container
US2896839A (en) * 1955-07-26 1959-07-28 Foil Process Corp Package for drink-forming powders
US3053385A (en) * 1958-12-16 1962-09-11 Arthur T Spees Disposable applicator
US3347444A (en) * 1965-01-29 1967-10-17 Tetra Pak Ab Package having an oblique opening indication
US3379360A (en) * 1966-06-06 1968-04-23 Packaging Frontiers Inc Package
US3416716A (en) * 1965-07-08 1968-12-17 Stark Sven Olof Soren Container opening device comprising a slot and a strip passing through it

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2725173A (en) * 1949-06-13 1955-11-29 Joseph A O'reilly Paper container
US2896839A (en) * 1955-07-26 1959-07-28 Foil Process Corp Package for drink-forming powders
US3053385A (en) * 1958-12-16 1962-09-11 Arthur T Spees Disposable applicator
US3347444A (en) * 1965-01-29 1967-10-17 Tetra Pak Ab Package having an oblique opening indication
US3416716A (en) * 1965-07-08 1968-12-17 Stark Sven Olof Soren Container opening device comprising a slot and a strip passing through it
US3379360A (en) * 1966-06-06 1968-04-23 Packaging Frontiers Inc Package

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3924008A (en) * 1971-06-25 1975-12-02 Ici Ltd Flexible pouches for carbonated beverages
US3795359A (en) * 1971-11-19 1974-03-05 Tetra Pak Int Parallellepipedic package
US4101051A (en) * 1975-05-09 1978-07-18 Wilhelm Reil Packaging means
US4126263A (en) * 1976-07-08 1978-11-21 Tetra Pak International Ab Packing container provided with opening arrangement
US4223789A (en) * 1977-12-24 1980-09-23 Tetra Pack Developpement S.A. Opening means for a packaging means of flexible material
US4655387A (en) * 1983-02-07 1987-04-07 Tetra Pak International Ab Packing container provided with a sine curve tear-up opening arrangement
US4819839A (en) * 1984-03-23 1989-04-11 Tetra Pak International Ab Opening arrangement on packing containers
US4989780A (en) * 1984-08-06 1991-02-05 Owens-Illinois Plastic Products Inc. Blank for sealed carton with integral reclosable pour-out spout
US4798296A (en) * 1986-03-26 1989-01-17 Ab Tetra Pak Packing container provided with a reclosable opening arrangement
US4705197A (en) * 1986-07-29 1987-11-10 International Paper Company Pour spout for containers
US4798295A (en) * 1986-11-13 1989-01-17 Ab Tetra Pak Packing container for liquid contents
US5133497A (en) * 1990-05-23 1992-07-28 Dipl. - Physiker Lutz H. Prufer Container
US5150833A (en) * 1992-03-09 1992-09-29 Hong Pi Lien Paper package for beverage
US5694746A (en) * 1994-12-20 1997-12-09 Chung; Yun H. Paperboard package and method for forming same
US5938107A (en) * 1996-03-21 1999-08-17 Tetra Laval Holdings & Finance S.A. Packaging container and a blank for producing the same
US6443357B1 (en) * 1997-11-19 2002-09-03 Tetra Laval Holdings & Finance, S.A. Packaging case and packaging material therefor
US20040108371A1 (en) * 2002-12-06 2004-06-10 Tetra Laval Holdings & Finance S.A. Opening arrangement, packaging and method of providing a packaging with an opening arrangement
US7191931B2 (en) 2002-12-06 2007-03-20 Tetra Laval Holdings & Finance S.A. Opening arrangement, packaging and method of providing a packaging with an opening arrangement
WO2010144976A1 (pt) * 2009-06-17 2010-12-23 Wellinthon Silva Gabriel Suspiro para embalagem de líquidos para consumo: sucos, leite, leite fermentado, achocolatado, água de côco e outros.

Also Published As

Publication number Publication date
FR2064438B1 (fr) 1974-09-20
SE332386C (sv) 1972-05-10
SE332386B (sv) 1971-02-01
FR2064438A1 (fr) 1971-07-23

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Legal Events

Date Code Title Description
AS Assignment

Owner name: AKTIEBOLAGET TETRA PAK

Free format text: CHANGE OF NAME;ASSIGNOR:TETRA PAK INTERNATIONAL AKTIEBOLAG;REEL/FRAME:005150/0367

Effective date: 19870831