US3347444A - Package having an oblique opening indication - Google Patents

Package having an oblique opening indication Download PDF

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Publication number
US3347444A
US3347444A US518236A US51823666A US3347444A US 3347444 A US3347444 A US 3347444A US 518236 A US518236 A US 518236A US 51823666 A US51823666 A US 51823666A US 3347444 A US3347444 A US 3347444A
Authority
US
United States
Prior art keywords
package
indication
flap
tear
sealing
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
US518236A
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English (en)
Inventor
Rausing Gad Anders
Swede Harald Georg
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 AB
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 AB filed Critical Tetra Pak AB
Application granted granted Critical
Publication of US3347444A publication Critical patent/US3347444A/en
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

Definitions

  • the present invention refers to a package of flexible, relatively stiff web material which has been formed into a tube and closed by fiat pressing and transverse sealing in transverse narrow zones for forming individual packages which have thereupon been separated by cuts in said sealing zones, one end of the package having been compressed so as to form a fiat, preferably rectangular end wall, from which two substantially triangular flaps project, said flaps having been folded against the adjacent package side walls and being traversed by a closing fin formed by the transverse sealing one of said flaps being provided with a tear-up indication to facilitate removal of a portion of said closing fin therefrom and thereby to provide a pouring opening.
  • the above-mentioned, substantially rectangular, double-walled corner flaps are formed from the excess material which on account of geometrical conditions cannot be fitted into the parallelepipedic shape.
  • Packages of the kind here mentioned which are preferably used for liquid filling material, are with advantage produced from packaging material which has been coated with a thermoplastic material, for example polyethylene, elwax, wax or lacquer, which on the one hand is liquidtight in itself, on the other hand allows producing of liquid-tight seals which may be produced in a simple and cheap way by pressing two sandwiched material surfaces provided with a thermoplastic coating against each other with simultaneous supply of heat, the coatings turned towards each other fusing along the Zones subjected to pressure and heat. If, for some reason, it should be considered more advantageous to glue together the sealing joints, this is of course also possible.
  • a thermoplastic material for example polyethylene, elwax, wax or lacquer
  • a package of the kind considered may be produced continuously in a rational way starting from a flat web of material which is formed into a tube which is thereupon filled, divided up and closed by successive transverse seals, detached and finally converted into individual packages units of the desired form.
  • the present invention aims at providing an emptying opening which is easy to open and which also alfords essential advantages in respect of manufacturing procedure, the package according to the invention being characterized by a tear-up indication running near the base line of the above-mentioned sealing fin at an angle in a top end wall 2 and a bottom 3,347,444 Patented Oct.
  • said tear-up indication facilitating the tearing-up of the portion of the fin running across said flap to form an emptying opening, part of the material of the flap proper being also remove
  • This tear-up indication may be given various forms, which may most simply be described with reference to the form it occupies in a flatly developed web of material.
  • the most simple form is the V-form, the apex of the V in the finished package having to be situated on the underside of the triangular flap, while the free leg ends of the V at the same time have to be near the base line of the sealing fin, preferably some distance inwards on the package proper.
  • the W-form may be used.
  • the tear-up indication may also consist of curved perforations.
  • the curvature may be adjusted so that the flap with the tear-up indication, after tearing-off the end portion of the fin with or without the help of crease lines, has a strong tendency to raise itself and form a natural emptying spout. The curvaure will then be dependent on the position of crease lines possibly provided near the tear-up indication.
  • curved perforations it has, however, been found suitable generally to follow the above-mentioned V- or W-forrns, respectively.
  • V- or W-forrns respectively.
  • U-form may be suitable.
  • the advantage is gained that the shape of the emptying opening may be chosen arbitrarily.
  • the additional advantages is gained that thanks to the oblique disposition of the indication in relation to the transverse direction of the web the risk of breakage in the web at the turning thereof over turning rolls or at the forming of said web is reduced.
  • a further advantage is that the perforation may be carried out continuously in a running web of material, so that the cutting forces need not be applied at one time for the whole indication, which, however, would be necessary if the indication were formed by a straight perforation running in the transverse direction of the web.
  • FIG. 1 shows a closed package in which the opening indication consists of a perforation of V-form in the flat condition of the packaging material
  • FIG. 2 shows the same package after being opened by tearing away the part of the sealing fin running across the opening flap
  • FIG. 3 finally shows a closed package in which the opening indication consists of a perforation of W-form in the flat condition of the packaging material
  • FIG. 4 is a partial plan view of the blank showing the location of the perforations in the completed package as depicted in FIG. 1, and
  • FIG. 5 is a partial plan view of the blank showing the location of the perforations in the completed package as depicted in FIG. 3.
  • the package shown in FIG. 1 consists of side walls 1,
  • the package has been made from a flexible, relatively stiff web material which has been formed into a tube and closed by fiat-pressing and transverse sealing at transverse narrow zones, whereby a sealing fin 3 later folded down against the top end wall 2 of the package has been formed.
  • a sealing fin 3 later folded down against the top end wall 2 of the package has been formed.
  • a tear-up indication consisting of straight perforation lines 8 which penetrate the material only partially and which, starting from a common point a, situated on the inside of the flap 4 on the base line 7 of the fin 3, run through symmetrical points 12 on the free side edges of the flap and terminate at a point 0 at the base line 7 some distance from the flap 4.
  • the tear-up indication described is produced most simply by stamping a V-shaped perforation in the web of material, before said web is converted into tube form.
  • FIG. 2 the package according to FIG. 1 is shown in opened condition, an emptying opening 9 having been formed by tearing-off the part of the sealing fin 3 running across the flap 4, together with a further small part of the fin, running partly across the end 2 as well as part of the material of the flap proper, i.e. the material between the tear-up indication 8 and the fin 3.
  • the package shown in FIG. 3 conforms entirely with that shown in FIGS. 1 and 2, and therefore the same reference numerals as in these figures have been used.
  • the only difference is the form of the tear-up indication which has therefore been designated by 8 and which consists of two straight perforations which start from a common point a at the end of the base line 7 of the sealing fin 3, from where they run obliquely away from the base line up to symmetrical points b at the folding line 6 from where they again approach the base line 7 and each other to meet the base line 7 at the point 0.
  • This tear-up indication is produced most simply by stamping a W-shaped perforation in the web of material, before said web is converted into tube form.
  • the invention is not limited only to the embodiments described above but may be varied within the scope of the following claims.
  • the invention may also be applied to other packages than those set forth above by way of example.
  • the form of the tear-up indication may be varied. Thus, as already mentioned, this may also be formed by curved perforation lines. In certain cases the creases 5 may be omitted altogether. In certain other cases it may instead be suitable to replace these creases with others adapted to the form of the tear-up indication used. If the tear-up indications perforations 8 8, 8 are extended in such a way that they cross the sealing fin 3 obliquely, the removing of the outer part of the double wall corner flap 4 is facilitated.
  • a package manufactured from a flexible, relatively stiff web material which has been formed into a tube and closed by fiat pressing and transverse scaling in transverse narrow zones for forming individual packages which have thereupon been separated by cuts in said sealing zones, one end of the package having been folded and compressed so as to form a fiat, rectangular end wall, from which two substantially triangular flaps project, said flaps having been folded down against the adjacent package side walls and being traversed by a closing fin formed by the transverse sealing, characterized by a tear-up indication 8 running from near the base line 7 of the fin 3 on the flap 4 obliquely in relation to this line and across to the edges of said flap 4, said tear-up indication facilitating the tearing-up of the portion of the fin 3 running across said flap 4 to form an emptying opening 9, part of the material of the flap 4 proper being also removed.
US518236A 1965-01-29 1966-01-03 Package having an oblique opening indication Expired - Lifetime US3347444A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH125565A CH429571A (de) 1965-01-29 1965-01-29 Parallelepipedisches Paket aus einem biegsamen, relativ steifen, zu einer Röhre geformten Bahnmaterial

Publications (1)

Publication Number Publication Date
US3347444A true US3347444A (en) 1967-10-17

Family

ID=4206101

Family Applications (1)

Application Number Title Priority Date Filing Date
US518236A Expired - Lifetime US3347444A (en) 1965-01-29 1966-01-03 Package having an oblique opening indication

Country Status (10)

Country Link
US (1) US3347444A (de)
BE (1) BE675250A (de)
BR (1) BR6676791D0 (de)
CH (1) CH429571A (de)
DE (1) DE1298929B (de)
DK (1) DK113549B (de)
FI (1) FI44208B (de)
GB (1) GB1078901A (de)
NL (1) NL149757B (de)
NO (1) NO119132B (de)

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3650458A (en) * 1969-10-20 1972-03-21 Tetra Pak Int Opening arrangement on packages
US3795359A (en) * 1971-11-19 1974-03-05 Tetra Pak Int Parallellepipedic package
US3797726A (en) * 1971-01-11 1974-03-19 Altstaedter Verpack Vertrieb Container for liquids with an openable pouring spout
JPS5390530U (de) * 1976-12-24 1978-07-25
US4126263A (en) * 1976-07-08 1978-11-21 Tetra Pak International Ab Packing container provided with opening arrangement
NL7805771A (nl) * 1977-05-26 1978-11-28 Tetra Pak Int Verpakking met een vloeistofdichte openscheurperfora- tie.
US4248351A (en) * 1977-06-20 1981-02-03 Tetra Pak International Ab Packaging container with a pouring spout
US4331288A (en) * 1979-08-22 1982-05-25 Tetra Pak International Ab Packing container
EP0130666A2 (de) * 1983-05-04 1985-01-09 International Paper Company Kartonschachtel mit schwenkbarer Öffnungsklappe und Karton mit perforierter schwenkbarer Öffnungsklappe
US4655387A (en) * 1983-02-07 1987-04-07 Tetra Pak International Ab Packing container provided with a sine curve tear-up opening arrangement
US4657175A (en) * 1982-03-18 1987-04-14 Tetra Pak International Ab Package
US4712690A (en) * 1984-02-25 1987-12-15 Pkl Papier-Und Kunststoff-Werke Linnich Gmbh Package having welded seam closure with hot melt thickening
US4771916A (en) * 1983-06-08 1988-09-20 Ocean Spray Corporation Pivotal spout with cutter for dispensing liquids from multi-layered laminate containers
USRE32891E (en) * 1984-05-10 1989-03-21 International Paper Company Pouring spout opening configuration for a gable top of a container
US4915236A (en) * 1987-07-23 1990-04-10 Pkl Verpackungssysteme Gmbh Cardboard and plastic composite parallelopipedal container for liquid
US5080233A (en) * 1990-11-21 1992-01-14 Minnesota Mining And Manufacturing Company Gable top container having reduced opening force and method for construction therefor
US5601233A (en) * 1994-10-28 1997-02-11 Kao Corporation Container
US5694746A (en) * 1994-12-20 1997-12-09 Chung; Yun H. Paperboard package and method for forming same
WO1998045175A2 (en) * 1997-04-04 1998-10-15 Sig Combibloc Inc. Tear-away package opening
US6227074B1 (en) 1997-03-21 2001-05-08 Tetra Laval Holdings & Finance S.A. Method of manufacturing perforating tools
US6241646B1 (en) 1998-02-09 2001-06-05 Sig Combibloc Inc. Tear-away container spout
US6419152B1 (en) 1998-02-09 2002-07-16 Sig Combibloc Inc. Tear-away container top
WO2003063658A1 (en) 2002-01-28 2003-08-07 Tetra Laval Holdings & Finance, Sa Sleeve and dispenser for brick-type package
US6766941B1 (en) 1998-02-09 2004-07-27 Sig Combibloc, Inc. Tear-away container top
WO2005110869A1 (en) * 2004-05-17 2005-11-24 Sealed Air (New Zealand) Improvements to packages and packaging methods

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2520569C2 (de) * 1975-05-09 1982-10-21 Altstädter Verpackungs-Vertriebsgesellschaft mbH, 6102 Pfungstadt Verpackung für Flüssigkeiten mit Ausgießtülle
DE2707321C2 (de) * 1977-02-19 1979-04-26 Papier- Und Kunststoff-Werke Linnich Gmbh, 4000 Duesseldorf Faltschachtel für Schüttgüter
DE2854775C2 (de) * 1978-12-19 1984-09-06 Tetra Pak International AB, Lund Quaderförmige Verpackung
DE3226879A1 (de) * 1982-07-17 1984-01-19 Altstädter Verpackungsvertriebs Gesellschaft mbH, 6102 Pfungstadt Oeffnungsmittel an einer parallelepipedischen packung fuer fliessfaehiges fuellgut
DE3301086C2 (de) * 1983-01-14 1985-10-03 PKL Papier- und Kunststoff-Werke Linnich GmbH, 4000 Düsseldorf Packung auf flächigem Material, wie z.B. Papier, Karton o.dgl. insbesondere quaderförmige Flüssigkeitspackung aus Papier-Kunststoff- Verbund-Material
GB2190658B (en) * 1986-03-24 1989-12-13 Hans Rausing Packing containers and blanks therefor
FR2704519B1 (fr) * 1993-04-26 1995-08-04 Marin Jean Jacques Perfectionnements aux boites en carton du type soude.
EP0709294A1 (de) * 1994-10-27 1996-05-01 Jean-Jacques Marin Verschweisste Faltschachtel

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3232514A (en) * 1963-01-16 1966-02-01 Tepar Ag Filled and sealed package
US3279678A (en) * 1963-01-16 1966-10-18 Lindh Thorsten Lennartson Filled and sealed package having reinforcing side panels

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2305631A (en) * 1940-07-06 1942-12-22 Shellmar Products Co Package opening device
BE642600A (de) * 1964-01-16 1964-05-15

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3232514A (en) * 1963-01-16 1966-02-01 Tepar Ag Filled and sealed package
US3279678A (en) * 1963-01-16 1966-10-18 Lindh Thorsten Lennartson Filled and sealed package having reinforcing side panels

Cited By (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3650458A (en) * 1969-10-20 1972-03-21 Tetra Pak Int Opening arrangement on packages
US3797726A (en) * 1971-01-11 1974-03-19 Altstaedter Verpack Vertrieb Container for liquids with an openable pouring spout
US3795359A (en) * 1971-11-19 1974-03-05 Tetra Pak Int Parallellepipedic package
US4126263A (en) * 1976-07-08 1978-11-21 Tetra Pak International Ab Packing container provided with opening arrangement
JPS5390530U (de) * 1976-12-24 1978-07-25
NL7805771A (nl) * 1977-05-26 1978-11-28 Tetra Pak Int Verpakking met een vloeistofdichte openscheurperfora- tie.
US4248351A (en) * 1977-06-20 1981-02-03 Tetra Pak International Ab Packaging container with a pouring spout
US4331288A (en) * 1979-08-22 1982-05-25 Tetra Pak International Ab Packing container
US4657175A (en) * 1982-03-18 1987-04-14 Tetra Pak International Ab Package
US4655387A (en) * 1983-02-07 1987-04-07 Tetra Pak International Ab Packing container provided with a sine curve tear-up opening arrangement
EP0130666A2 (de) * 1983-05-04 1985-01-09 International Paper Company Kartonschachtel mit schwenkbarer Öffnungsklappe und Karton mit perforierter schwenkbarer Öffnungsklappe
EP0130666A3 (de) * 1983-05-04 1986-02-12 International Paper Company Kartonschachtel mit schwenkbarer Öffnungsklappe und Karton mit perforierter schwenkbarer Öffnungsklappe
US4771916A (en) * 1983-06-08 1988-09-20 Ocean Spray Corporation Pivotal spout with cutter for dispensing liquids from multi-layered laminate containers
US4712690A (en) * 1984-02-25 1987-12-15 Pkl Papier-Und Kunststoff-Werke Linnich Gmbh Package having welded seam closure with hot melt thickening
USRE32891E (en) * 1984-05-10 1989-03-21 International Paper Company Pouring spout opening configuration for a gable top of a container
US4915236A (en) * 1987-07-23 1990-04-10 Pkl Verpackungssysteme Gmbh Cardboard and plastic composite parallelopipedal container for liquid
US5080233A (en) * 1990-11-21 1992-01-14 Minnesota Mining And Manufacturing Company Gable top container having reduced opening force and method for construction therefor
US5601233A (en) * 1994-10-28 1997-02-11 Kao Corporation Container
US5694746A (en) * 1994-12-20 1997-12-09 Chung; Yun H. Paperboard package and method for forming same
US6227074B1 (en) 1997-03-21 2001-05-08 Tetra Laval Holdings & Finance S.A. Method of manufacturing perforating tools
US6631665B1 (en) 1997-03-21 2003-10-14 Tetra Laval Holdings & Finance S.A. Perforating tools having plural blades
WO1998045175A2 (en) * 1997-04-04 1998-10-15 Sig Combibloc Inc. Tear-away package opening
US6062470A (en) * 1997-04-04 2000-05-16 Sig Combibloc Inc. Tear-away package opening
US6446860B1 (en) * 1997-04-04 2002-09-10 Sig Combibloc, Inc. Tear-away package opening
WO1998045175A3 (en) * 1997-04-04 1998-12-23 Sig Combibloc Inc Tear-away package opening
US6241646B1 (en) 1998-02-09 2001-06-05 Sig Combibloc Inc. Tear-away container spout
US6419152B1 (en) 1998-02-09 2002-07-16 Sig Combibloc Inc. Tear-away container top
US6766941B1 (en) 1998-02-09 2004-07-27 Sig Combibloc, Inc. Tear-away container top
WO2003063658A1 (en) 2002-01-28 2003-08-07 Tetra Laval Holdings & Finance, Sa Sleeve and dispenser for brick-type package
WO2005110869A1 (en) * 2004-05-17 2005-11-24 Sealed Air (New Zealand) Improvements to packages and packaging methods
AU2005202091B2 (en) * 2004-05-17 2010-12-02 Sealed Air (New Zealand) Improvements To Packages And Packaging Methods

Also Published As

Publication number Publication date
GB1078901A8 (en) 1969-01-01
GB1078901A (en) 1967-08-09
CH429571A (de) 1967-01-31
NL149757B (nl) 1976-06-15
FI44208B (de) 1971-06-01
BR6676791D0 (pt) 1973-02-06
NO119132B (de) 1970-03-23
DE1298929B (de) 1969-07-03
DK113549B (da) 1969-03-31
NL6600713A (de) 1966-08-01
BE675250A (de) 1966-05-16

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