US3178017A - Containers - Google Patents

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Publication number
US3178017A
US3178017A US253590A US25359063A US3178017A US 3178017 A US3178017 A US 3178017A US 253590 A US253590 A US 253590A US 25359063 A US25359063 A US 25359063A US 3178017 A US3178017 A US 3178017A
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US
United States
Prior art keywords
sheet
flaps
container
top flaps
opening
Prior art date
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Expired - Lifetime
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US253590A
Inventor
Bowman Donald Bruce
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.)
Crown Packaging UK Ltd
Original Assignee
Metal Box PLC
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Publication date
Application filed by Metal Box PLC filed Critical Metal Box PLC
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Publication of US3178017A publication Critical patent/US3178017A/en
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    • 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
    • B65D5/20—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-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form
    • B65D5/24—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-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form with adjacent sides interconnected by gusset folds
    • B65D5/241—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-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form with adjacent sides interconnected by gusset folds and the gussets folds connected to the inside of the container body
    • B65D5/243—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-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form with adjacent sides interconnected by gusset folds and the gussets folds connected to the inside of the container body the container body comprising a continuous rim or flange

Definitions

  • This invention relates to containers and in particular to a container made of cardboard or like material and which, in use, has an open top through which access can be had to the contents thereof.
  • Containers of the kind above mentioned are often used to contain confectionery such as sweets, jam tarts, or cakes and are usually for purposes of storage and trans port enclosed in a wrapper of flexible material which pro tects the contents against contamination by dirt and dust and prevents the contents from being spilled or pilfered from the container.
  • the wrapping material is usually of a kind that is relatively costly and accordingly adds considerably to the cost of packaging and it is a main object of the present invention so to construct a container of the said kind as to alford there-for the same protection for the opening of the container as previously but by the use of a much lesser quantity of the protective wrapping material thus reduc ing the cost of the container.
  • a container made of cardboard or like material comprising side walls hingedly connected to and set-up from a bottom, a single top flap hinged to the top of each side, said top iiaps being folded into non-overlapping relation to overlie the bottom, an opening which partially exposes the interior of the container, the hinge connections be tween the top flaps and the side walls being such that the top flaps have a tendency to swing outwards away from the bottom, and a sheet of flexible material adhered to the exterior faces of the folded top flaps and tensioned across said opening by pressure exerted on the sheet by swinging of the top flaps away from the bottom.
  • the top flaps form mitre joints at the corners of the container.
  • the hexible material is transparent or translucent and may be a synthetic thermoplastic material heat-sealed to the top flaps.
  • FIGURE 1 illustrates a blank for a container according to the invention
  • FEGURE 2 illustrates the blank of FIGURE 1 in the set-up condition thereof
  • FIGURE 3 illustrates the completed container.
  • the blank is made of cardboard or similar material and comprises a bottom 1 having side walls 2, 3, 4 and 5 hlngedly connected thereto, as by creases, in the usual manner.
  • Corner portions 5 are hinged to the ends of the side walls and are provided with creases '7 about which they are folded when the blank is set-up.
  • the side walls respectively have top flaps 8, 9, 10, 11 hinged thereto.
  • the blank is set-up as illustrated in FIGURE 2 with the corner portions 6 folded about the creases 7 and secured at 12 to the side walls to retain the blank in the set-up condition.
  • the top iiaps 8, 9, 16 and 11 are folded about their hinge connections with the side walls to overlie the bottom 1 but the creases forming the hinge connections for the top flaps are not fully broken and as a consequence the flaps have a strong tendency to swing away from the bottom.
  • the top flaps have sloping ends 13 which when the flaps are folded over the bottom as shown in FIGURE 3 cause the flaps to form mitred joints at the corners of the box.
  • the width W of the flaps is such that when the flaps are folded to overlie the bottom 1 they forman opening which partially exposes the interior of the container.
  • the opening is covered by a sheet 14 of flexible material, FIGURE 3, for example transparent or translucent material, which is adhered to the exterior faces of the top flaps and is tensioned across the opening by pressure exerted on the sheet 1eby swinging of the flaps away from the bottom 1 of the container.
  • the sheet 14 is made of a transparent synthetic thermoplastic material such as that sold under the registered trademark Metathene and is heatscalcd to the top flaps. During the sealing of the sheet 14 to the top flaps the flaps press the sheet against the sealing tool and on removal of the tool the flaps swing away from the bottom 1 of the container and thus tension the sheet across the opening.
  • the area of the sheet 14 is substantially equal to that of the top of the container and as the sheet is not folded about the sides and bottom a of the container it will be understood that there is a considerable saving of material as compared with the known forms of container which are completely enclosed in a wrapper of transparent or other flexible material, for example laminated materials such as paper-polyethylene, foil! polyethylene, or film/polyethylene.
  • the container as illustrated in FIGURE 3 is of pleasing appearance and can be readily opened by tearing the sheet 14- from the top flaps. Further, because the sheet 14 is adhered to the top flaps the opening is completely sealed against the ingress of dust or dirt.
  • the flexible sheet 14- may be opaque, for example the sheet may consist of a flexible board, a metal foil, or a laminated material such as paper/polyethylene, or foil/ polyethylene.
  • a container made of cardboard or like material comprising a bottom, side walls hingedly connected to and set up from the bottom, a planar top flap hinged to the top of each side wall, all of said top flaps being su stantially mined and folded inwardly into non-overlapping relation overlying the bottom and forming an opening which partially exposes the interior of the container, the hinge connections between the top flaps and the side walls being such that the top flaps have a tendency to swing outwardly away from the bottom, and a sheet or flexible material having substantially the same area as said bottom completely covering and adhered to the ex- 1 f1 terior face's of the folded top flaps, said sheet being tensione'd across' said opening'by pressures in the directions of the periphery of the sheet exerted by swinging .of the top flaps away from the bottom.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cartons (AREA)
  • Laminated Bodies (AREA)

Description

April 3, 1965 D. s. BOWMAN 3,178,017
CONTAINERS Filed Jan. 24, 1963 5 DfiNALD 5 a Attorneys United States Patent Oii ice 3,l78,hi? Patented Apr. 13, 1965 3,178,617 EONTAINERS Donmd Bruce Bowman, Pinner, England, asslgnor to The Metal Box Company Limited, London, Engiand, a British company Filed Jan. 24, 1963, Ser. No. 253,595
(Ilaims priority, application Great Britain, Fen. l6, 19b2,
6,155/62 4 Claims. (Cl. 206-4534) This invention relates to containers and in particular to a container made of cardboard or like material and which, in use, has an open top through which access can be had to the contents thereof.
Containers of the kind above mentioned are often used to contain confectionery such as sweets, jam tarts, or cakes and are usually for purposes of storage and trans port enclosed in a wrapper of flexible material which pro tects the contents against contamination by dirt and dust and prevents the contents from being spilled or pilfered from the container.
The wrapping material is usually of a kind that is relatively costly and accordingly adds considerably to the cost of packaging and it is a main object of the present invention so to construct a container of the said kind as to alford there-for the same protection for the opening of the container as previously but by the use of a much lesser quantity of the protective wrapping material thus reduc ing the cost of the container.
According to the invention there is provided a container made of cardboard or like material comprising side walls hingedly connected to and set-up from a bottom, a single top flap hinged to the top of each side, said top iiaps being folded into non-overlapping relation to overlie the bottom, an opening which partially exposes the interior of the container, the hinge connections be tween the top flaps and the side walls being such that the top flaps have a tendency to swing outwards away from the bottom, and a sheet of flexible material adhered to the exterior faces of the folded top flaps and tensioned across said opening by pressure exerted on the sheet by swinging of the top flaps away from the bottom.
In a preferred embodiment of the invention the top flaps form mitre joints at the corners of the container. Also in a preferred embodiment of the invention the hexible material is transparent or translucent and may be a synthetic thermoplastic material heat-sealed to the top flaps.
In order that the invention may be clearly understood one embodiment thereof will now be described, by way of example, with reference to the accompanying drawings, in which:
FIGURE 1 illustrates a blank for a container according to the invention,
FEGURE 2 illustrates the blank of FIGURE 1 in the set-up condition thereof, and
FIGURE 3 illustrates the completed container.
Referring to the drawings, the blank, FIGURE 1, is made of cardboard or similar material and comprises a bottom 1 having side walls 2, 3, 4 and 5 hlngedly connected thereto, as by creases, in the usual manner.
Corner portions 5, of known form, are hinged to the ends of the side walls and are provided with creases '7 about which they are folded when the blank is set-up. The side walls respectively have top flaps 8, 9, 10, 11 hinged thereto.
The blank is set-up as illustrated in FIGURE 2 with the corner portions 6 folded about the creases 7 and secured at 12 to the side walls to retain the blank in the set-up condition. The top iiaps 8, 9, 16 and 11 are folded about their hinge connections with the side walls to overlie the bottom 1 but the creases forming the hinge connections for the top flaps are not fully broken and as a consequence the flaps have a strong tendency to swing away from the bottom. As shown in drawings, the top flaps have sloping ends 13 which when the flaps are folded over the bottom as shown in FIGURE 3 cause the flaps to form mitred joints at the corners of the box. The width W of the flaps is such that when the flaps are folded to overlie the bottom 1 they forman opening which partially exposes the interior of the container.
The opening is covered by a sheet 14 of flexible material, FIGURE 3, for example transparent or translucent material, which is adhered to the exterior faces of the top flaps and is tensioned across the opening by pressure exerted on the sheet 1eby swinging of the flaps away from the bottom 1 of the container. In a preferred embodiment of the invention the sheet 14 is made of a transparent synthetic thermoplastic material such as that sold under the registered trademark Metathene and is heatscalcd to the top flaps. During the sealing of the sheet 14 to the top flaps the flaps press the sheet against the sealing tool and on removal of the tool the flaps swing away from the bottom 1 of the container and thus tension the sheet across the opening. The area of the sheet 14 is substantially equal to that of the top of the container and as the sheet is not folded about the sides and bottom a of the container it will be understood that there is a considerable saving of material as compared with the known forms of container which are completely enclosed in a wrapper of transparent or other flexible material, for example laminated materials such as paper-polyethylene, foil! polyethylene, or film/polyethylene.
The container as illustrated in FIGURE 3 is of pleasing appearance and can be readily opened by tearing the sheet 14- from the top flaps. Further, because the sheet 14 is adhered to the top flaps the opening is completely sealed against the ingress of dust or dirt.
It is to be understood that, if desired, the flexible sheet 14- may be opaque, for example the sheet may consist of a flexible board, a metal foil, or a laminated material such as paper/polyethylene, or foil/ polyethylene.
I claim:
1. A container made of cardboard or like material, comprising a bottom, side walls hingedly connected to and set up from the bottom, a planar top flap hinged to the top of each side wall, all of said top flaps being su stantially mined and folded inwardly into non-overlapping relation overlying the bottom and forming an opening which partially exposes the interior of the container, the hinge connections between the top flaps and the side walls being such that the top flaps have a tendency to swing outwardly away from the bottom, and a sheet or flexible material having substantially the same area as said bottom completely covering and adhered to the ex- 1 f1 terior face's of the folded top flaps, said sheet being tensione'd across' said opening'by pressures in the directions of the periphery of the sheet exerted by swinging .of the top flaps away from the bottom.
2. A container according to claim 1 wherein the flexible material is transparent.
3. A container according to claim 1 wherein the flexible material is translucent.
' 4. A container according to claim 2 wherein the flexible material is a synthetic thermoplastic material heatsealed to the top flap-s.
References Cited in the file of this patent UNITED STATES PATENTS Kaplan Mar. 2, Brunt et a1. Feb. 1, Koch et a1. Nov. 29, Hoag June 6, Moore Apr. 30, Keith Feb. 19,
FOREIGN PATENTS Germany Dec. 7,

Claims (1)

1. A CONTAINER MADE OF CARBOARD OR LIKE MATERIAL, COMPRISING A BOTTOM, SIDE WALLS HINGEDLY CONNECTED TO AND SET UP FROM THE BOTTOM, A PLANAR TOP FLAP HINGED TO THE TOP OF EACH SIDE WALL, ALL OF SAID TOP FLAP BEING SUBSTANTIALLY MITRED AND FOLDED INWARDLY INTO NON-OVERLAPPING RELATION OVERLYING THE BOTTOM AND FORMING AN OPENING WHICH PARTIALLY EXPOSES THE INTERIOR OF THE CONTAINER, THE HINGE CONNECTIONS BETWEEN THE TOP FLAPS AND THE SIDE WALLS BEING SUCH THAT THE TOP FLAPS HAVE A TENDENCY TO SWING OUTWARDLY AWAY FROM THE BOTTOM, AND A SHEET OF FLEXIBLE MATERIAL HAVING SUBSTANTIALLY THE SAME AREA AS SAID BOTTOM COMPLETELY COVERING AND ADHERED TO THE EXTERIOR FACES OF THE FOLDED TOP FLAPS, SAID SHEET BEING TENSIONED ACROSS SAID OPENING BY PRESSURES IN THE DIRECTIONS OF THE PERIPHERY OF THE SHEET EXERTED BY SWINGING OF THE TOP FLAPS AWAY FROM THE BOTTOM.
US253590A 1962-02-16 1963-01-24 Containers Expired - Lifetime US3178017A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB6155/62A GB965300A (en) 1962-02-16 1962-02-16 Improvements in or relating to cartons

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US3178017A true US3178017A (en) 1965-04-13

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USB281943I5 (en) * 1972-08-18 1975-01-28
US3904104A (en) * 1972-08-18 1975-09-09 Du Pont Polyethylene terephthalate/paperboard blank and container formed from such blank
US6126068A (en) * 1999-08-19 2000-10-03 Sara Lee Corporation Garment display package
US20080093257A1 (en) * 2006-09-05 2008-04-24 Peacock Apparel Group, Inc. Shirt box
US20090107871A1 (en) * 2007-10-26 2009-04-30 Charles Raymond White Food Packages and Methods of Manufacture

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2264697A (en) * 1992-03-04 1993-09-08 Michael Anthony Tinn Containers

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2072371A (en) * 1936-02-10 1937-03-02 Kaplan Ben Folding box closure and fastener therefor
US2106907A (en) * 1936-01-06 1938-02-01 Brunt & Company Box
US2138241A (en) * 1935-08-09 1938-11-29 Koch Herman Sealed package
US2161675A (en) * 1936-10-16 1939-06-06 Roderick W Hoag Folding box
US2790589A (en) * 1954-06-15 1957-04-30 Moore George Arlington Telescopic container
DE1119099B (en) * 1959-08-13 1961-12-07 Metal Box Co Ltd Device for erecting boxes from blanks of cardboard, cardboard or the like.
US3078027A (en) * 1960-05-09 1963-02-19 Mead Corp Carton

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2138241A (en) * 1935-08-09 1938-11-29 Koch Herman Sealed package
US2106907A (en) * 1936-01-06 1938-02-01 Brunt & Company Box
US2072371A (en) * 1936-02-10 1937-03-02 Kaplan Ben Folding box closure and fastener therefor
US2161675A (en) * 1936-10-16 1939-06-06 Roderick W Hoag Folding box
US2790589A (en) * 1954-06-15 1957-04-30 Moore George Arlington Telescopic container
DE1119099B (en) * 1959-08-13 1961-12-07 Metal Box Co Ltd Device for erecting boxes from blanks of cardboard, cardboard or the like.
US3078027A (en) * 1960-05-09 1963-02-19 Mead Corp Carton

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USB281943I5 (en) * 1972-08-18 1975-01-28
US3904104A (en) * 1972-08-18 1975-09-09 Du Pont Polyethylene terephthalate/paperboard blank and container formed from such blank
US3924013A (en) * 1972-08-18 1975-12-02 Du Pont Method of cooking food in a polythylene terephthalate/paperboard laminated container
US6126068A (en) * 1999-08-19 2000-10-03 Sara Lee Corporation Garment display package
US20080093257A1 (en) * 2006-09-05 2008-04-24 Peacock Apparel Group, Inc. Shirt box
US7717323B2 (en) * 2006-09-05 2010-05-18 Peacock Apparel Group, Inc. Shirt box
US20090107871A1 (en) * 2007-10-26 2009-04-30 Charles Raymond White Food Packages and Methods of Manufacture
US20100218463A1 (en) * 2007-10-26 2010-09-02 Kraft Foods Global Brands Llc Food Packages and Methods of Manufacture

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CH385101A (en) 1964-11-30
GB965300A (en) 1964-07-29

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