US3825168A - Gable top container - Google Patents

Gable top container Download PDF

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Publication number
US3825168A
US3825168A US00028348A US2834870A US3825168A US 3825168 A US3825168 A US 3825168A US 00028348 A US00028348 A US 00028348A US 2834870 A US2834870 A US 2834870A US 3825168 A US3825168 A US 3825168A
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US
United States
Prior art keywords
score line
panels
score
panel
upper edge
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
US00028348A
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English (en)
Inventor
Ewen G Mac
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.)
Huhtamaki Consumer Packaging Inc
Original Assignee
Phillips Petroleum Co
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 Phillips Petroleum Co filed Critical Phillips Petroleum Co
Priority to US00028348A priority Critical patent/US3825168A/en
Priority to CA104257A priority patent/CA921445A/en
Priority to BE765656A priority patent/BE765656A/fr
Priority to LU62978D priority patent/LU62978A1/xx
Priority to NL7104900A priority patent/NL7104900A/xx
Priority to DE19712118013 priority patent/DE2118013A1/de
Priority to FR7113174A priority patent/FR2086061B1/fr
Priority to GB26807/71A priority patent/GB1298430A/en
Application granted granted Critical
Publication of US3825168A publication Critical patent/US3825168A/en
Assigned to SEALRIGHT CO., INC. A DE CORP. reassignment SEALRIGHT CO., INC. A DE CORP. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: PHILLIPS PETROLEUM COMPANY A DE CORP.
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
    • B65D5/067—Gable-top containers
    • B65D5/068—Gable-top containers with supplemental means facilitating the opening, e.g. tear lines, tear tabs

Definitions

  • the container includes inclined roof panels which define a gable opening therethrough, and a pair of end closure panels for closing opposite ends of the gable opening. Roof panels of the gable top structure are provided with novel score line configurations for caus ing one of the end closure panels to snap outwardly forming a pouring spout.
  • a gable top closure structure consists generally of inclined roof panels which form gable end openings, and a pair of end closure panels inclined upwardly into the gable end openings.
  • the end closure panels have integral fold-back panels that assume a position lying against the underside of the front and rearroof panels.
  • the fold-back panels and the front and rear roof panels are formed with integral ridge panels, which are arranged in vertical contacting relation and are joined together by some form of adhesive, usually by a bonding of the thermoplastic coating, to form the ridge of the gable top.
  • Pry score lines are formed on one side of each of the roof panels so that when the roof panels and companion fold-back panels are moved in opposite directions the uncovered end closure panel is permitted to snap out forming a pouring spout.
  • the pry score lines shown in the aforementioned patent are configurated to provide a beam which when angularly disposed in relation to the plane of its associated roof panel imparts an outward force on the end closure panel causing it to snap open. While this configuration has been sstisfactory for large containers, e.g., one-half gallon or larger, it has not been entirely reliable for small containers, e.g., quart or smaller cartons. The difficulty arises from the premature breaking of one of the score lines preventing the complete development of the beam portion.
  • FIG. 1 is a perspective view of a carton constructed score line 16 define side wall panels 17, 18, 19, 21 and 22.
  • the panel 17 comprises the frontwall of the container,- panels 21 and 22 the side walls, and panels 18,19 bonded together in overlapping relation comprise the rear panel of the container.
  • a bottom closure 20 is permanently sealed 29, 33-34 which on the blank are aligned with front wall 17 and rear wall 18-19, respectively.
  • Score lines 16, 24, 25 and 27 define a rectangular roof panel 28, and score lines 26, 16, 27 and 23 define roof panel comprising panels 31-32 bonded together in overlapping relation.
  • Score lines 23, 24, 16 and 27 define a closure panel which is divided into triangular sections 37, 38 and 39 by converging score lines 35 and 36.
  • the score lines 35 and 36 meet at the junction with score line 27 forming the apex 37a of section 37 and a score line 41 extends upwardly to near the blank edge from the apex 37a.
  • Triangular section 37 comprises the end.
  • closure panel for one of the gable openings defined by roof panels 28 and 31-32 and triangular sections 39 and 38 comprise the fold-back panels which underlie the roof panels 28 and 31-32, respectively, in the assembled carton.
  • Panel 37 in the assembled container extends angularly through the gable opening and the apex 37a is located near the midpoint of the upper ridge of the roof panels 28 and 31-32.
  • Score lines 23, 24, 27 and 41 define two ridge panels 42 and 43 which fold inwardly and are maintained in abutting relation between the confronting ridge panels 29 and 33-34 surmounting the roof panels 28 and 31-32, respectively.
  • Score lines 25, 26, 16 and 27 define a second closure panel which is divided into polygonal sections 46, 47 and 48 by the angulated score lines 44,45 and an angulated portion 16a, 16b, and 16c of score'line 16.
  • Score lines 44 and 45 meet at the junction with score 27 forming the apex 46a of section 46 and score 49 extends upwardly to near the edge of the blank from the apex 46a.
  • Score lines 25, 26, 27 and 49 defineridge panels 51 and 52 which when folded about score 49 are maintained in abutting relation between ridge panels 29 and 33-34 surmounting roof panels 28 and 31-32, respectively.
  • section 46 comprises the end closure for gable opening defined by roof panels 28 and 31-32
  • sections 47 and 48 comprise the fold-back panelswhich underlie portions of roof panels 28 and 31-32.
  • Score line 16 which defines the bottom edge of closure panel 46 is angulated having portions 16a, 16b, I
  • portion 16a joins score 44 at the junction with score 14 and section joins score 45 at the junction with score 15. These junctions are located slightly below the score 16 of panels 17 and 18.
  • the angular configuration afforded by 16a, 16b and 16c creates a downward pulling force' on closure panel 46 so that its apex 46a is drawn downward and inward so as to maintain a forceful engagement of the'folded edge along score line 49 with the folded'edge alongscore line 41, which extend upwardly from apex 46a and 37a, respectively, thereby providing a secure top seal;
  • the score lines 44 and 45 are angulated having portions 44a, 44b and 45a,45b, respectively.
  • Portions 44a and 45a converge upwardly from a lower hinge line provided by 16a,l6b,l6c, define a generally trapezoidal section 46b.
  • Portions 44b and 45b extend upwardly from the upper ends of 44a and 45a, respectively, terminating at apex 46a.
  • the portions 44b and 45b define an upper portion triangular section 460 of panel 46 which has its base integral with the generally lower portion trapezoidal section 46b.
  • a weakened line of severance 60 passes horizontally through the unscored portions of scores 44b and 45b.
  • junctions of 44a to 44b, and 45a to 45b are located a distance below the severance line 60.
  • a prying pressure is applied to panel section 46, the portion of panel section 46 below the severance linesnaps open, the panel section 46 and the fold-back panels 47 and 48 defining a pouring spout.
  • the angular configuration of score lines 44 and 45 provide an improved pouring spout characterized as narrow and pointed.
  • a strip of tape 61 is bonded to the closure panel sections 46,47,48 in overlying relation to the weakened line of severance 60. The tape 61 is applied over the weakened line of severance 60 and heat sealed to the entire marginal surface about the weakened line of severance.
  • the tape 61 can be formed of thermoplastic material or it can be a nonthermoplastic material provided with a coating of thermoplastic material compatible and heat scalable to the thermoplastic coating on the container. It is presently preferable that the nonthermoplastic material have a heat reflective outer surface to prevent any weakening of the bond between the tape 61 and the container during the time the top section of the container is being subjected to radiant heat in preparation for sealing the rib panels to form the central laminar ridge.
  • the ends 62 of tape 61 extend beyond the ends of the closure panel sections 46,47,48 to provide grasping tabs (FIG. 1).
  • portions 44b and 45b provides for a more uniform seal by tape 61 over the line of severance 60 than with the prior art configuration which had an included angle at 460 much greater than that disclosed herein.
  • the tape 61 wrinkles at the angular edges between the panel section 46 and panel sections 47 and 48.
  • the reduced included angle between scores 44 and 45 places the panel 46 bounding severance line 60 in a more vertical attitude on the completed container permitting the tape to lie flatter at the edges of panels 46, 47 and 48.
  • the roof panels 28 and 31 are provided with pry score lines shown generally as 71,72 and 74,75, respectively. Since the pairs of pry score lines 71,72 and 74,75 are substantially identical, only the configuration of pair 71-72 will be described, it being understood that 74-75 are similarly configurated.
  • score lines 71 and 72 were symmetrically disposed on either side of an imaginary line 73 which extended diagonally from a medial point on score line 27 to the junction of score line 16 to score line 14.
  • the pry score lines 71 and 72 according to this invention are arranged in asymmetric relation.
  • Score lines 71 and 72 have their point of origin 80 located on score line 27 at substantially a median point of said score line 27.
  • the length of the portion of score line 27 from the origin 80 of score lines 71 and 72 to the score line 14 is substantially the same as the length of the portion of score line 27 from score line 14 to apex 46a.
  • Lower score line 71 is comprised of three portions, 71a, 71b, and 71c.
  • Score line 71a which is the upper end portion of score line 71, begins at origin and 710 terminates at the junction of score lines 16 and 14.
  • Score line 71a extends from orifice 80 downwardly and in a direction toward sidewall 22.
  • Score line 71b begins at the terminal end of score line 71a thereby forming junction 82 which is located a distance from score line 14 that is substantially identical to the distance of junction 84 and of score lines 44a and 44b from score line 14.
  • Score line 71b extends from junction 82 downwardly and in a direction toward sidewall 22 at an angle of about 3545 with score line 27.
  • Score line 710 begins at the terminal end of score line 71b thereby forming junction 86 which is located a distance from score line 14 that is less than the distance between score line 14 and a point in 440 that is at substantially the same elevation as junction 86. Score lines 71b and 710 form a lower end portion of score line 71.
  • Score line 72 is comprised of two score lines 72a and 72b. Score line 72a begins at origin 80 and extends downwardly and outwardly toward sidewall 22 between score lines 71 and 14 and terminates at point 90 that is at an elevation substantially the same as junction 82 and lower than severance line 60. Score line 72b begins at the terminal end of score line 72a, extends toward junction 86, and terminates at a location spaced from junction 86.
  • Pry score lines 71, 72 define an intermediate elongate beam section 77 and are so arranged that score 71 first breaks when section 47 and portion 28a of panel 28 are moved outwardly, causing the beam section 77 to be angularly disposed in relation to the plane of roof panel 28. Continued outward movement of section 47 and 28a acts as a lever having the fulcrum at score line 72 to cause panel sections 46 to snap outwardly from the line of severance 60 after the tape 61 has been removed.
  • the score 72 is configurated to present more resistance to breaking. More specifically, the score 72 has portions 72a and 72b. There is an unscored portion between the end of 72b and the junction 86. The unscored portion presents additional resistance to breaking of the score 72 thereby insuring that score 71 breaks first.
  • the junction of score portion 44a and 44b on the end closure panel defined by sections 46,47,48 is geometrically located so that pry force is applied by the point 90 of section 77 which is proximate the line of weakness 60.
  • the container can be opened by applying outward pressure against the fold-back panel sections 47 and 48 to cause separation of the bond between adjacent outer faces of rib panels 51 and 52.
  • Initial outward movement causes the roof panels 28, 31-32 to break along the pry score lines 71 and 74, respectively.
  • scores 72 and 75 ensures that the breaking will be first along scores 71,74.
  • Additional outward movement of roof panels 28, 31-32 causes a break along score lines 72 and 75 to form the elongate beam structure 77 forming the point 90.
  • the lever action applies a maximum force at the junction 84 of a to 44b and junction 85 of 45a to 45b by points 90 and 91 causing splitting along the line of weakness 60 which in turn permits the spout defined by panel sections 46,47,48 to snap outwardly to a pouring position.
  • the over center position of the panel 46 in relation to scores and 26 maintains the spout in a stable pouring position.
  • the spout snaps to a stable closed position.
  • the opening and closing of the spout is identical to that disclosed in the aforementioned patent.
  • a gable top container of sheet material including a tubular body having four side walls; a bottom closure fixed to said body; a pair of opposed roof panels inclining toward each other and overlying the top of said body; a pair of opposed end closure panels enfolded between said roof panels from the opposite gable ends formed by the latter; first and second pairs of fold-back panels, each pair of fold-back panels being joined to opposite sides of a respective one of said end closure panels along the fold lines which are in proximity with said roof panels, said fold-back panels being folded against the underside of said roof panels; a ridge panel surmounting each of said roof panels; a ridge panel surmounting each of said fold-back panels, each pair of ridge panels surmounting a pair of fold-back panels being hinged together at the apex of the contiguous end closure panels and being folded about said hinge join der in face-to-face relation between the ridge panels surmounting said roof panels, wherein the improvement comprises lower and upper score lines located in each of said pair of roof panels,
  • said upper score line includes first and sec- 0nd score portions, said upper score line first portion interconnecting the upper end of said upper score line second portion and said upper edge, said upper score line second portion extending from the lower end of said upper score line first portion in a downwardly converging direction toward the junction of the second and third portions of the lower score line, said upper score line second portion terminating at a point spaced from said lower score line second portion and said lower corner.
  • a gable top container as set forth in claim 1, wherein the junction of the first and second portions of the upper'score line is adjacent and at a lower elevation than the weakened line of severance.
  • a paperboard blank for forming a container of rectangular formation and having a gable top said blank being formed with laterally spaced apart score lines extending vertically from the lower edge to the upper edge of the blank, a score line extending transversely on the blank in downward spaced relation to the upper edge thereof, said latter score line, in conjunction with said vertically extending score lines, defining opposed front and rear wall panels and opposed side wall panels, a second transversely extending score line arranged intermediate the upper edge of said blank and said first transversely extending score line and defining, in conjunction therewith and with said vertically extending score lines, a front roof panel surmounting said front wall panel, a rear roof panel surmounting said rear wall panel, and an area surmounting each of said side wall panels, each of said areas being provided with converging score lines inclining upwardly from said first transverse score line to said second transverse score line and defining in each of said areas an end closure panel and a pair of fold-back panels hinged to the end closure panel, said second transversely
  • said lower score line includes first, second, and third portions, said lower score line second portion extending diagonally and downwardly along said respective roof panel at an angle between 35 and 45 with said upper edge of said respective roof panel, said lower score line first portion interconnecting the upper end of said lower score linesecond portion and said upper edge of said respective roof panel and lying along the plane of the upper end portion of the closure panel in the container formed, closed position, and said lower score line third portion interconnecting the lower end of said lower score line second portion and said lower corner; and said upper score line including first and second portions, said upper score line first portion interconnecting the upper end of said upper score line second portion and said upper edge of said respective roof panel, said upper score line second portion extending from the lower end of said second score portion in a downwardly converging direction toward the junction of the second and third portions of the lower score line, said upper score line second portion terminating at a point spaced from said lower score line second portion and said lower corner.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cartons (AREA)
US00028348A 1970-04-14 1970-04-14 Gable top container Expired - Lifetime US3825168A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
US00028348A US3825168A (en) 1970-04-14 1970-04-14 Gable top container
CA104257A CA921445A (en) 1970-04-14 1971-02-02 Gable top container
LU62978D LU62978A1 (fr) 1970-04-14 1971-04-13
NL7104900A NL7104900A (fr) 1970-04-14 1971-04-13
BE765656A BE765656A (fr) 1970-04-14 1971-04-13 Recipient a partie superieure en forme de comble
DE19712118013 DE2118013A1 (de) 1970-04-14 1971-04-14 Behälter mit giebelförmigem Oberteil
FR7113174A FR2086061B1 (fr) 1970-04-14 1971-04-14
GB26807/71A GB1298430A (en) 1970-04-14 1971-04-19 Gable top containers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00028348A US3825168A (en) 1970-04-14 1970-04-14 Gable top container

Publications (1)

Publication Number Publication Date
US3825168A true US3825168A (en) 1974-07-23

Family

ID=21842942

Family Applications (1)

Application Number Title Priority Date Filing Date
US00028348A Expired - Lifetime US3825168A (en) 1970-04-14 1970-04-14 Gable top container

Country Status (8)

Country Link
US (1) US3825168A (fr)
BE (1) BE765656A (fr)
CA (1) CA921445A (fr)
DE (1) DE2118013A1 (fr)
FR (1) FR2086061B1 (fr)
GB (1) GB1298430A (fr)
LU (1) LU62978A1 (fr)
NL (1) NL7104900A (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4520957A (en) * 1984-07-26 1985-06-04 Ex-Cell-O Corporation In-folded fin seal end closure
US4546915A (en) * 1985-04-05 1985-10-15 Ex-Cell-O Corporation In-folded fin seal end closure
US4620665A (en) * 1983-08-18 1986-11-04 Nathaniel H. Garfield Container with integral toggle closure
US4834241A (en) * 1987-10-13 1989-05-30 Southern Albert M Gable top paperboard container with tactile indicia indicating opening spout
US6345759B1 (en) * 2001-02-02 2002-02-12 Tetra Laval Holdings & Finance, Sa Gable top carton with enlarged pour spout opening
US9284091B2 (en) 2013-03-14 2016-03-15 David Lawrence SHALKOP Day of opening reminder for a container
JP2018030642A (ja) * 2016-08-24 2018-03-01 隆二 東 屋根型の紙容器

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE451319B (sv) * 1983-02-04 1987-09-28 Tetra Pak Ab Forpackningsbehallare med utvikbar hellpip
GB2253608B (en) * 1991-02-14 1995-02-01 Tetra Pak Holdings Sa Opening arrangements for cartons

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4620665A (en) * 1983-08-18 1986-11-04 Nathaniel H. Garfield Container with integral toggle closure
US4520957A (en) * 1984-07-26 1985-06-04 Ex-Cell-O Corporation In-folded fin seal end closure
WO1986000865A1 (fr) * 1984-07-26 1986-02-13 Ex-Cell-O Corporation Fermeture d'extremite a ailettes soudees repliees vers l'interieur
US4546915A (en) * 1985-04-05 1985-10-15 Ex-Cell-O Corporation In-folded fin seal end closure
US4834241A (en) * 1987-10-13 1989-05-30 Southern Albert M Gable top paperboard container with tactile indicia indicating opening spout
US6345759B1 (en) * 2001-02-02 2002-02-12 Tetra Laval Holdings & Finance, Sa Gable top carton with enlarged pour spout opening
US9284091B2 (en) 2013-03-14 2016-03-15 David Lawrence SHALKOP Day of opening reminder for a container
JP2018030642A (ja) * 2016-08-24 2018-03-01 隆二 東 屋根型の紙容器

Also Published As

Publication number Publication date
DE2118013A1 (de) 1971-11-04
LU62978A1 (fr) 1972-03-02
FR2086061B1 (fr) 1974-03-08
FR2086061A1 (fr) 1971-12-31
CA921445A (en) 1973-02-20
GB1298430A (en) 1972-12-06
NL7104900A (fr) 1971-10-18
BE765656A (fr) 1971-10-13

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Legal Events

Date Code Title Description
AS Assignment

Owner name: SEALRIGHT CO., INC. A DE CORP.

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:PHILLIPS PETROLEUM COMPANY A DE CORP.;REEL/FRAME:004099/0393

Effective date: 19821116