US3561667A - Composite container - Google Patents

Composite container Download PDF

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Publication number
US3561667A
US3561667A US3561667DA US3561667A US 3561667 A US3561667 A US 3561667A US 3561667D A US3561667D A US 3561667DA US 3561667 A US3561667 A US 3561667A
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Prior art keywords
bag
closure
closure flap
carton
compartment
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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
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Elias A Saltman
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Packaging Corp of America
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Packaging Corp of America
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D5/00Rigid 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
    • B65D5/42Details of containers or of foldable or erectable container blanks
    • B65D5/56Linings or internal coatings, e.g. pre-formed trays provided with a blow- or thermoformed layer
    • B65D5/60Loose, or loosely attached, linings
    • B65D5/603Flexible linings loosely glued to the wall of the container
    • B65D5/606Bags or bag-like tubes loosely glued to the wall of a "tubular" container

Abstract

A composite container is provided for use in the bulk handling of comminuted materials and the like. The container includes a foldable outer carton having sidewall panels and full overlapping end closure flaps which cooperate to define a productaccommodating compartment, and a pliable bag disposed within the compartment and having an open upper end for product loading. The wall portions of the bag are affixed to the interior surfaces of the carton sidewall panels and the portions of the bag circumjacent the open upper end are releasably affixed to the closure flaps defining the carton upper end. The bag portion of the first folded closure flap projects beyond the distal edge of the flap so that the projecting bag portion overlies a portion of the bag attached to a second closure flap, opposed to said first folded closure flap, and thus, retains the projected bag portion in linear contact with the overlapped bag portion of the second closure flap at the fold line connection between the second closure flap and a sidewall of the container.

Description

United States Patent [72] Inventor Elias A. Saltman Grand Rapids, Mich. [21] Appl. No. 783,279 [22] Filed Dec. 12,1968 [45] Patented Feb. 9, 1971 [73] Assignee Packaging Corporation of America Evanston, Ill. a corporation of Delaware [54] COMPOSITE CONTAINER 4 Claims, 9 Drawing Figs.

[52] US. Cl 229/37, 229/ 1 [51] Int. Cl B65d 5/ 56 [50] Field of Search... 229/14 (BA), 14 (BL), 37, 14B

[56] References Cited UNITED STATES PATENTS 1,947,664 2/1934 Staude 229/14BA(X) 2,599,708 6/1952 Gottesman 229/14BA 2,665,837 1/1954 Guyer 229/37 FOREIGN PATENTS 602,198 5/1948 Great Britain. 229/37 1,084,560 6/1960 Germany 229/l4BA Primary ExaminerLeonard Summer Att0rney-Pendlet0n, Neuman, Williams & Anderson ABSTRACT: A composite container is provided for use in the bulk handling of comminuted materials and the like. The container includes a foldable outer carton having sidewall panels and full overlapping end closure flaps which cooperate to define a product-accommodating compartment, and a pliable bag disposed within the compartment and having an open upper end for product loading. The wall portions of the bag are affixed to the interior surfaces of the carton sidewall panels and the portions of the bag circumjacent the open I upper end are releasably affixed to the closure flaps defining COMPOSITE CONTAINER BACKGROUND OF THE INVENTION In prior composite containers of this general type, it has frequently been required that the loading end of the inner bag be heat sealed closed, securely tied, or carefully folded before final closing of the outer carton has occurred. Such procedures are undesirable because they are awkward and time consuming operations and/or in heat sealing, the heat applied might have a deleterious effect on the product being accommodated. In other prior composite containers loading thereof was oftentimes a frustrating experience because opening of the bag to receive the product could not be readily attained and/or maintained.

Because of certain structural characteristics, numerous prior composite containers were not readily suitable to be mechanically set up. loaded and closed, or capable of being collapsed prior to use, so as to form a compact unit easily stored or shipped with other containers in like condition. Furthermore, many of the prior composite containers were of complex and costly design and were not adaptable to accommodate a variety of products.

SUMMARY OF THE INVENTION Thus, it is an object of this invention to provide a composite container that readily avoids the aforenoted shortcomings which have heretofore beset prior containers of this general type.

It is a further object of this invention to provide a composite container which may be formed, set up, loaded and closed by utilizing techniques well known and understood in the packaging art.

Further and additional objects will appear from the description, accompanying drawings and appended claims.

In accordance with one embodiment of this invention a composite container is provided which comprises a carton having a plurality of sidewall panels foldably interconnected and forming an interior product-accommodating compartment and a plurality of closure flaps foldably connected to the upper and lower edges of the sidewall panels. The closure flaps, when in one folded position, cooperate with one another so as to form the top and bottom end walls of the compartment. Disposed within the compartment is a pliable bag having the upper end thereof open to permit loading of the product. The wall portions of the bag are affixed to the interior surfaces of the carton sidewall panels and are movable therewith when said carton is manipulated to either a set up or collapsed condition. The portions of the bag circumjacent the open upper end thereof are releasably affixed to the carton closure flaps defining the top end wall. One pair of the top end wall-forming closure flaps fully overlap one another when the end wall is formed. A segment of the upper end-forming portion of the bag projects beyond the distal edge of the first folded flap of the fully overlapping flaps. A second segment of the upper end-forming portion of the bag terminates at the distal edge of the other fully overlapping closure flap.

For a more complete understanding of the invention, reference should be made to the drawings wherein:

FIG. 1 is a plan view of the carton blank and showing the bag in collapsed condition and overlying a portion of the blank.

FIG. 2 is similar to FIG. 1 but showing the blank and bag folded so as to form a collapsed tubular member.

FIG. 3 is a perspective view of the improved composite container shown in condition for loading; portions of the carton sidewall panels being removed so as to expose the bag wall portions.

FIG. 4 is an enlarged sectional view taken along line 4-4 of FIG. 3.

FIG. 5 is similar to FIG. 3 but showing the container fully loaded.

FIGS. 6-8 are fragmentary perspective views of the upper end of the container and showing the folding sequence to effect closing of the container.

FIG. 9 is an enlarged fragmentary sectional view taken along line 9-9 of FIG. 8.

Referring now to the drawings and more particularly to FIGS. 3 and 5, an improved composite container I0 is shown which is particularly adaptable for the bulkhandling of comminuted or granulated products 11, see FIG. 5. The container 10 includes an outer carton or box 12 which is formed from a blank I3 of foldable sheet material, such as double faced corrugated fiberboard or the like. Disposed within the carton I2 is a pliable bag 14 formed of nonpervious plastic sheet material such as polyethylene.

The carton I2 in the illustrated embodiment is a style known in the art as a center special full flap slotted container; however, other styles of cartons may be used if desired. Carton 12 includes four vertical sidewall panels I5, l6, l7 and I8. In blank 13 the sidewall panels are arranged in side-by-side relation and are interconnected by foldlines 20, 21 and 22. Connected by foldline 24 to the outer side edge of panel is a manufacturers glue flap 25v Foldably connected to the top and bottom edges of panels 15-18 are closure flaps 26, 27, 28 and 30 which cooperate with one another so as to form top and bottom end walls.

As noted from the drawings, sidewall panels 15 and I7 and their respective closure flaps 26 and 28 are wider than panels 16 and I8 and their respective closure flaps 27 and 30. The adjacent edges of adjoining closure flaps are separated from one another by slots 3!.

Applied to the interior surfaces of the carton sidewall panels l5-l8, which cooperate with one another to form a compartment, are elongated stripes of adhesive 32 arranged in spaced parallel relation. The stripes preferably extend the full height (length) of the sidewall panels.

Placed in registered relation with the interior surfaces of sidewall panels 16 and 17 of blank 13 is bag I4 in a collapsed conditionv It will be noted in FIG. I that the bag in its collapsed condition has a width greater than the combined widths of panels 16 and 17. In addition, the length of bag 14 is greater than panels 16 and 17 so that the lower or closed end 14a of the bag overlies substantial portions of lower closure flaps 27 and 28. The upper portions of the bag defining the upper open end completely overlie upper closure flaps 27-and 28. It will be further noted in FIGS. I, 3, 5 and 6, that a segment 14b of the upper edge of bag 14 projects beyond the outer distal edge 28a of upper closure flap 28 and also preferably beyond at least a part of the distal edges 27a and 30a of upper closure flaps 27 and 30. A second segment Me of the upper edge of bag 14 terminates at the distal edge 26a of upper closure flap 26, see FIGS. 3, 5 and 6.

In addition to the adhesive stripes 32 which affix the wall portions of the bag 14 to the carton sidewall panels 15--18, there is also provided a plurality of adhesive spots 33 which are applied to the interior surfaces of the upper closure flaps 26, 27, 28 and 30. These spots 33 are adapted to releasably affix the upper portions of the bag to the upper closure flaps and thus facilitate opening of the upper end of the bag for loading, see FIGS. 3 and 5.

It is important in order that a proper leakproof closing be effected at the upper end of the container that the portion 14b of the bag project beyond the distal edge 28a of the first folded flap 28. This fact becomes apparent when the manner of closing the loading end of the container 1 0 is described. As seen in FIG. 6, the bag portion 14b partially overlies the interior surface of flap 26, after flap 28 is first folded across the end of the carton. It will be noted that flap 28 spans the distance between wall panels 15 and 17 as well. as between wall panels 16 and 18. Subsequent to flap 28 being folded, as shown in FIG. 6, flap 26 and the portion of the bag affixed thereto, as well as extension 14b are folded so as to overlap the first folded flap 28. Suitable adhesive may be applied to the exposed surface of flap 28 so as to retain the bag portions carried by flap 26 in overlapping relation. Both flaps 26 and 28 are in full overlapping relation. Both flaps 26 and 28 are folded into proper relative positions, the portions of the bag-releasably affixed to closure flaps 27 and 30 will be pulled therefrom and thus prevent any tearing of the bag material, see H68. 6 and 7. Once flaps 26 and 28 are in proper overlapping relations, the remaining two flaps 27 and 36 are then folded inwardly towards each other so as to overlap the exposed surface of flap 26. In the illustrated embodiment, flaps 27 and 30 are of like configuration and their combined lengths span the distance between sidewall panels 16 and 18.

it will be noted in FIG. 7 that as the flaps 27 and 30 are folded into their proper overlapping relation with respect to flap 26, the portions of the bag which had previously been affixed to fiaps 27 and 30 become sandwiched between flap 26 and the respective flap 27 or 30. Flaps 27 and 30 are retained in their folded positions, as shown in H6. 8 by suitable means such as adhesive or tape.

Thus, by reason of the interfolding of the closure flaps and the upper portions of the bag, an effective sealed closure is obtained without heat sealing, tying, separate internal folding or the like; and in addition,.the strength of the end of the container is materially enhanced because of its multi-ply construetion, see FIG. 9. It is to be further noted that the sealed closure is attained without the necessity of heat sealing closed the open end of the bag subsequent to leading thereof.

As aforementioned, the size and configuration of the composite container may be varied. from that shown in the drawings without departing from he scope of the invention. By avoiding affixing wall portions of the bag to the carton interior at the foldlines between the carton wall panels, erecting or setting up of the container from its collapsed state, as shown in FIG. 2, is facilitated.

While the closed lower end of the bag partially overlies lower closure flaps 27 and 28, as seen in FIG. 1, this condition does not interfere with the closing of the bottom of the carton because of the pliable character of the bag material. The lower closure flaps may be the full overlap style, if desired, and thereby give added strength to the bottom of the container.

Thus, the improved composite container is of simple yet sturdy construction and provides a leakproof construction for the accommodated product without requiring that both ends of the inner bag be heat sealed closed. The improved container is capable of accommodating a variety of products and may be readily set up, loaded and closed by conventional mechanical equipment.

While a particular embodiment of the invention has heretofore been described, it is to be understood, of course, that the invention is not limited thereto, but further modifications are contemplated and it is intended by the appended claims to cover such modifications.

I claim:

1. A composite container comprising a foldable carton having four sidewall panels foldably interconnected and defining a product-accommodating compartment, and closure flaps foldably connected to the top and bottom edges of said sidewall panels and being foldable into overlapping relation so as to form top .and bottom end walls for the compartment, a first of said closure flaps forming the top end wall spanning the entire distance between the opposed sidewall panels defining said compartment; and a pliable bag disposed within said compartment, said bag having a closed bottom subtended by the carton bottom end wall-forming closure flaps, wall portions of said bag being affixed to the interior surfaces of said sidewall panels forming said compartment, and portions of said bag circumjacent the open end thereof being releasably affixed to the carton top end wall-forming closure flaps. the segment of the bag releasably affixed to said top end wall-forming first closure flap projecting beyond the distal edge of said first folded closure flap and said bag segment overlying a portion of the bag attached to the inner surface of a second closure flap opposed to said first closure flap at the foldline connection between said second closure flap and a sidewall panel. whereby the overlying bag segment and bag portion are retained in linear contact at said foldline connection.

2. The composite container of claim 1 wherein a second segment of the bag releasably affixed to the inner surface of said second closure flap terminates at the distal edge of said second closure flap.

3. The composite container of claim 2 wherein the segments of the bag wall portions adjacent the folding connections between the carton sidewall panels are not affixed to the interior surfaces of said sidewall panels.

4. The composite container of claim 3 wherein said first and second closure flaps fully overlap one another when forming said top end wall.

Claims (4)

1. A composite container comprising a foldable carton having four sidewall panels foldably interconnected and defining a product-accommodating compartment, and closure flaps foldably connected to the top and bottom edges of said sidewall panels and being foldable into overlapping relation so as to form top and bottom end walls for the compartment, a first of said closure flaps forming the top end wall spanning the entire distance between the opposed sidewall panels defining said compartment; and a pliable bag disposed within said compartment, said bag having a closed bottom subtended by the carton bottom end wallforming closure flaps, wall portions of said bag being affixed to the interior surfaces of said sidewall panels forming said compartment, and portions of said bag circumjacent the open end thereof being releasably affixed to the carton top end wallforming closure flaps, the segment of the bag releasably affixed to said top end wall-forming first closure flap projecting beyond the distal edge of said first folded closure flap and said bag segment overlying a portion of the bag attached to the inner surface of a second closure flap opposed to said first closure flap at the foldline connection between said second closure flap and a sidewall panel, whereby the overlying bag segment and bag portion are retained in linear contact at said foldline connection.
2. The composite container of claim 1 wherein a second segment of the bag releasably affixed to the inner surface of said second closure flap terminates at the distal edge of said second closure flap.
3. The composite container of claim 2 wherein the segments of the bag wall portions adjacent the folding connections between the carton sidewall panels are not affixed to the interior surfaces of said sidewall panels.
4. The composite container of claim 3 wherein said first and second closure flaps fully overlap one another when forming said top end wall.
US3561667A 1968-12-12 1968-12-12 Composite container Expired - Lifetime US3561667A (en)

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Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4046308A (en) * 1971-03-24 1977-09-06 Paxall, Inc. Packaging
EP0308318A1 (en) * 1987-09-14 1989-03-22 Dupuy Engineering S.A. Folded package with an interior lining, device to package products in such a package and manufacturing device for such a package
US4838424A (en) * 1987-10-08 1989-06-13 American Packaging Corporation Carton structure for forming lined carton with interior insert
US5261595A (en) * 1991-08-12 1993-11-16 The Procter & Gamble Company Collapsible refill container for granular products adapted to be inserted into an outer box-type package
US5289939A (en) * 1992-11-02 1994-03-01 International Paper Company Gas barrier folding carton construction
US5314088A (en) * 1990-08-22 1994-05-24 The Coca-Cola Company Cardboard packaging for liquids
US5531374A (en) * 1994-11-25 1996-07-02 Creative Tech Marketing Automatically-operating bottom structure in a collapsible container
US5715991A (en) * 1994-11-25 1998-02-10 Creative Tech Marketing Automatically-operating bottom structure in a collapsible container
US5816483A (en) * 1994-11-25 1998-10-06 Creative Tech Marketing Automatically-operating bottom structure in a collapsible container
WO1999001350A1 (en) * 1997-07-01 1999-01-14 Graphic Packaging Corporation Carton, carton blank and method for forming the carton
US5915617A (en) * 1994-11-25 1999-06-29 Creative Tech Marketing Automatically-operating bottom structure in a collapsible container
US5921465A (en) * 1997-11-14 1999-07-13 Georgia Pacific Corporation Instant set-up bulk box
US5958483A (en) * 1997-10-25 1999-09-28 Anders; Irving Package for collecting and segregating particulate food debris
US6012629A (en) * 1997-04-18 2000-01-11 Inland Paperboard And Packaging, Inc. Flat bottom structure for collapsible container
US6290123B1 (en) 1998-10-06 2001-09-18 Inland Paperboard And Packaging, Inc. Bottom structure for collapsible container
US6371363B1 (en) 1999-01-26 2002-04-16 Inland Paperboard And Packaging, Inc. Bottom structure for collapsible container
US20060289615A1 (en) * 2002-07-08 2006-12-28 Cardinale Salvatore J Insulated water-tight container
US20070267466A1 (en) * 2006-05-18 2007-11-22 Kirsten Laura Brand Cartons With Liquid-Tight Receptacles
US20100000672A1 (en) * 2007-02-23 2010-01-07 Fogle James C Reinforced carton and methods of making carton blanks
US20120186198A1 (en) * 2009-09-09 2012-07-26 Domenico Malcangio Device for packing bulk products, especially for food
US8727204B2 (en) 2009-11-16 2014-05-20 Graphic Packaging International, Inc. Expandable carton
GB2508170A (en) * 2012-11-22 2014-05-28 Stott O Connell And Company Ltd Carton blank with inner liner for liquids or greasy products

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1947664A (en) * 1931-08-27 1934-02-20 Edwin G Staude Lined moisture-proof carton and method of making same
GB602198A (en) * 1944-11-08 1948-05-21 Jyllands Papir V Erk As Prismatic cardboard-box
US2599708A (en) * 1949-11-14 1952-06-10 Permaline Company Inner lined folding carton
US2665837A (en) * 1948-05-19 1954-01-12 Waldorf Paper Prod Co Carton
DE1084560B (en) * 1955-10-11 1960-06-30 Hesser Ag Maschf A method of producing double bags made of paper, foil u. the like. with Kreuzfaltverschluss

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1947664A (en) * 1931-08-27 1934-02-20 Edwin G Staude Lined moisture-proof carton and method of making same
GB602198A (en) * 1944-11-08 1948-05-21 Jyllands Papir V Erk As Prismatic cardboard-box
US2665837A (en) * 1948-05-19 1954-01-12 Waldorf Paper Prod Co Carton
US2599708A (en) * 1949-11-14 1952-06-10 Permaline Company Inner lined folding carton
DE1084560B (en) * 1955-10-11 1960-06-30 Hesser Ag Maschf A method of producing double bags made of paper, foil u. the like. with Kreuzfaltverschluss

Cited By (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4046308A (en) * 1971-03-24 1977-09-06 Paxall, Inc. Packaging
EP0308318A1 (en) * 1987-09-14 1989-03-22 Dupuy Engineering S.A. Folded package with an interior lining, device to package products in such a package and manufacturing device for such a package
WO1989002395A1 (en) * 1987-09-14 1989-03-23 Dupuy Engineering S.A. Foldable package provided with an inner lining, device for packaging a product in such packages and device for fabricating such packages
US4838424A (en) * 1987-10-08 1989-06-13 American Packaging Corporation Carton structure for forming lined carton with interior insert
US5314088A (en) * 1990-08-22 1994-05-24 The Coca-Cola Company Cardboard packaging for liquids
US5261595A (en) * 1991-08-12 1993-11-16 The Procter & Gamble Company Collapsible refill container for granular products adapted to be inserted into an outer box-type package
US5289939A (en) * 1992-11-02 1994-03-01 International Paper Company Gas barrier folding carton construction
US5915617A (en) * 1994-11-25 1999-06-29 Creative Tech Marketing Automatically-operating bottom structure in a collapsible container
US5613694A (en) * 1994-11-25 1997-03-25 Creative Tech Marketing Automatically-operating bottom structure in a collapsible container
US5715991A (en) * 1994-11-25 1998-02-10 Creative Tech Marketing Automatically-operating bottom structure in a collapsible container
US5816483A (en) * 1994-11-25 1998-10-06 Creative Tech Marketing Automatically-operating bottom structure in a collapsible container
US5531374A (en) * 1994-11-25 1996-07-02 Creative Tech Marketing Automatically-operating bottom structure in a collapsible container
US5918799A (en) * 1996-10-29 1999-07-06 Graphic Packaging Corporation Carton, carton blank and method for forming the carton
US6012629A (en) * 1997-04-18 2000-01-11 Inland Paperboard And Packaging, Inc. Flat bottom structure for collapsible container
WO1999001350A1 (en) * 1997-07-01 1999-01-14 Graphic Packaging Corporation Carton, carton blank and method for forming the carton
US5958483A (en) * 1997-10-25 1999-09-28 Anders; Irving Package for collecting and segregating particulate food debris
US5921465A (en) * 1997-11-14 1999-07-13 Georgia Pacific Corporation Instant set-up bulk box
US6290123B1 (en) 1998-10-06 2001-09-18 Inland Paperboard And Packaging, Inc. Bottom structure for collapsible container
US6371363B1 (en) 1999-01-26 2002-04-16 Inland Paperboard And Packaging, Inc. Bottom structure for collapsible container
US20060289615A1 (en) * 2002-07-08 2006-12-28 Cardinale Salvatore J Insulated water-tight container
US20070267466A1 (en) * 2006-05-18 2007-11-22 Kirsten Laura Brand Cartons With Liquid-Tight Receptacles
US8196805B2 (en) * 2006-05-18 2012-06-12 Graphic Packaging International, Inc. Cartons with liquid-tight receptacles
US20100000672A1 (en) * 2007-02-23 2010-01-07 Fogle James C Reinforced carton and methods of making carton blanks
US8226794B2 (en) 2007-02-23 2012-07-24 Graphic Packaging International, Inc. Reinforced carton and methods of making carton blanks
US20120186198A1 (en) * 2009-09-09 2012-07-26 Domenico Malcangio Device for packing bulk products, especially for food
US9290304B2 (en) * 2009-09-09 2016-03-22 Domenico Malcangio Device for packing bulk products, especially for food
US8727204B2 (en) 2009-11-16 2014-05-20 Graphic Packaging International, Inc. Expandable carton
US9113648B2 (en) 2009-11-16 2015-08-25 Graphic Packaging International, Inc. Expandable carton
GB2508170A (en) * 2012-11-22 2014-05-28 Stott O Connell And Company Ltd Carton blank with inner liner for liquids or greasy products

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