US3565244A

US3565244A - Foldable container

Info

Publication number: US3565244A
Application number: US871075A
Authority: US
Inventors: Harold Donavon Wakefield
Original assignee: Coca Cola Co
Current assignee: Coca Cola Co
Priority date: 1969-10-16
Filing date: 1969-10-16
Publication date: 1971-02-23
Anticipated expiration: 1988-02-23

Abstract

A foldable and unfoldable container for dispensing liquid, powdered, solid or semisolid products to a user capable of flat storage in folded state with consequent space saving prior to use and including generally parallel side and end panels all joined together end to end with transverse scoring between adjacent panels to facilitate ready manipulative movement of the panels into an unfolded open container forming condition for reception of dispensed products. The respective panels along their bottom edges are also provided with depending flaps likewise with scoring along said bottom edges, the flaps being interleaved to be normally between the folded together panels and unfold automatically to a transverse position when the panels are manipulated to open container forming position to form a closed bottom for the opened container and being so shaped as to interlock at such time to retain the container in open condition. A collapsible leakproof liner also may be included which in the folded condition of the panels will be in collapsed state that will expand upon opening of the container to permit leakproof retention of liquid or semiliquid contents introduced into the opened container through its open top and also permit condition and retention of additives for mixing with and conditioning the contents of the container for use if such are in the form of powdered or liquid concentrates to condition the latter directly for use without requiring transfer of such concentrates to a second container.

Description

llnited States Patent [72] Inventor Harold Donavon Wakefield Houston, Tex. [21] Appl. No. 871,075 [22] Filed Oct. 16, 1969 Division of Ser. No. 730,757, Patent No. 3,517,875. [45] Patented Feb. 23, 1971 [73] Assignee The Coca-Cola Company New York, N.Y.

[54] FOLDABLE CONTAINER 3 Claims, 10 Drawing Figs.

{52] US. Cl 206/46, 99/171, 206/47 [51] llnt. Cl. B65d 85/70 [50] Field of Search 206/46 (Food), 47 (B); 229/41 (B), 14 (B); 99/171 (B) [56] References Cited UNITED STATES PATENTS 3,373,917 3/1968 Cox 229/14B 2,918,205 12/1959 Zeitter 229/39(X) 2,914,237 11/1959 Malmad 229/41B 2,326,417 8/1943 Ullrich 229/39 FOREIGN PATENTS 859,794 l/ 1961 Great Britain 229/41B Primary Examiner- Leonard Summer Attomey-Kenyon and Kenyon ABSTRACT: A foldable and unfoldable container for dispensing-liquid, powdered, solid or semisolid products to a user capable of flat storage in folded state with consequent space saving prior to use and including generally parallel side and end panels all joined together end to end with transverse scoring between adjacent panels to facilitate ready manipulative movement of the panels into an unfolded open container forming condition for reception of dispensed products. The respective panels along their bottom edges are also provided with depending flaps likewise with scoring along said bottom edges, the flaps being interleaved to be normally between the folded together panels and unfold automatically to a transverse position when the panels are manipulated to open container forming position to form a closed bottom for the opened container and being so shaped as to interlock at such time to retain the container in open condition. A collapsible leakproof liner also may be included which in the folded condition of the panels will be in collapsed state that will expand upon opening of the container to permit leakproof retention of liquid or semiliquid contents introduced into the opened container through its open top and also permit condition and retention of additives for mixing with and conditioning the contents of the container for use if such are in the form of powdered or liquid concentrates to condition the latter directly for use without requiring transfer of such concentrates to a second container.

PATENTED mm m 3; 565 244 sum 1 UF 2 BY Aim.

FOLDABLE CONTAINER This is a division of copending application Ser. No. 730,757, now US. Pat. No. 3,517,875, issued Jun. 30, 1970.

FIELD OF THE INVENTION This invention relates to a collapsible panelled container which can be shipped and stored in a fiat or folded condition and for use can be readily manipulated to an open or unfolded condition and at the same time automatically provide a bottom for the opened container. The invention also relates to a collapsible container that can be used in such condition to store a concentrate therein and which upon being manipulated to its open or unfolded condition will permit introduction of an additive such as a diluent to the concentrate to condition the latter to useful state directly in the opened container.

Because of space considerations, storage and/or dispensing, containers are generally shipped and stored in a flat or folded condition rather than in their open or unfolded condition until their use is required. When it is desired to use the container for receiving products to be dispensed, e.g. at a soda or food counter, the folded container is manipulated by the dispenser from its flat or folded condition to an open or unfolded condition after which the product may be placed in the opened container. For quick change from folded to open condition, simple manipulation is required by the dispenser which automatically will also provide a closed bottom therefor so that the product can be introduced to be carried away by the consumer.

Similarly, it is desirable to provide collapsible containers for packaging and storing concentrated powdered, liquid or semiliquid in folded containers which can be shipped and stored in folded or collapsed state to the ultimate user who is then required to unfold the container and condition the concentrate by an additive such as a diluent to render it capable of use. Examples of this are powdered coffee of tea, powdered milk, dried soup, dried food mixes, powdered glue, premixed concentrated paint, etc. Upon purchase, the user should be able to unseal the folded container package, open it to unfolded condition quickly and deposit required additive to the concentrate in the opened container without needing to transfer it to a larger container for such purposes.

With many prior art containers that have been used to store products for shipment and sale in flat or folded condition manipulation to an open or unfolded condition has required either placement of a separate closure member over the bottom end of the opened or unfolded container or the manually interengagement and locking flaps connected as adjuncts to the container panels to provide a closed bottom for the opened container to insure that a product stored or to be dispensed in the open container would not spill from its otherwise open bottom end. This obviously has been a burdensome task and, moreover, has slowed dispensation at a counter to the user.

Similarly, heretofore, in particular with concentrated products, no matter whether such product was edible or inedible, frozen or solid, liquid or powder, the ultimate user after opening the container has had to transfer the concentrate therefrom in its relatively small volume to a second container of much larger volume to permit mixing therewith of the required additive to achieve the desired useful product before mixing could be effected. The use of a second container by the ultimate user also is generally burdensome as it is timeconsuming and also must be washed and cleaned after use. Often, too, a second container is not available It is thus apparent that there is a need for a collapsible container that will automatically form a bottom as the container is manipulated from a flat or folded and collapsed condition to an open or unfolded condition and that it will find widespread use. Additionally, if such a container can, in the flat or folded and collapsed condition, be used also to store a concentrate in a leakproof adjunct which latter upon manipulation to an open or unfolded condition of the container can provide a larger volume in the leakproof adjunct that will occur automatically and be supported by the container bottom that desired additive necessary for the desired and final product can be introduced directly to the concentrate in the expanded adjunct in the original container. This will add to the desirability of the collapsible container.

SUMMARY OF THE INVENTION It is therefore a primary object'of the present invention to provide an improved collapsible, container having these desirable attributes;

A further object of the present invention is to provide a container that can be shipped and/or stored in a flat or folded and collapsed condition and at the site of ultimate use be readily manipulated to an open or unfolded condition and be provided with members that will then automatically interengage with each other to form a bottom closure for the opened container.

A further object of the present invention is to provide a container that also be used in flat, folded or collapsed condition to store a concentrate of a final product and which container upon manipulation at the site of use to an open or unfolded condition will also permit introduction into the container of a desired additive necessary to achieve the final product without requiring transfer of the concentrate to a second container prior to such introduction of said additive.

Briefly, in a first embodiment of the present invention a four-side panelled container also has flaps extending from bottom edges of each of the panels Each flap is either integral with or permanently fastened to an adjacent flap and normally lies folded against and between the panels. When the container is manipulated from its flat folded or collapsed condi tion to the open or unfolded condition the said flaps automatically both extend transversely of the flaps and interengage with each other to form a closed bottom for the opened container.

In a second embodiment of the invention, a flexible, collapsible pouch or envelope with an open mouth has its lips attached to the side panels of the collapsed container which is otherwise like that of said first embodiment of the invention. The collapsed pouch or envelope may contain a concentrate in a desired quantity even when within the collapsed container. When such container is manipulated to the open of unfolded condition the pouch or envelope volume will expand automatically substantially to the inner volume of the opened container and also be supported by the flap-formed container bottom so that desired additive may be introduced and combined with the concentrate in the expanded pouch or envelope directly to achieve the finally desired product in the opened container without any need for transfer of the concentrate in the latter to a second container for mixing.

DESCRIPTION OF THE DRAWINGS Other aspects and features of the present invention will become apparent from the following description and accompanying drawings in which:

FIG. I is a perspective view of a collapsed container embodying the present invention;

FIG. 2 is a sectional view taken along line 2-2 of FIGv I;

F IG, 3 is a sectional view taken along line 3-3 of FIG. 2;

FIGS. 4-6 show successive perspective views of the flaps of the container of FIGS. l-3 in successive positions of movement as the collapsed container is opened to form a bottom for the container as the container is being manipulated from the folded, flat or collapsed condition of FIGS. I and 2 to the open or unfolded condition of FIG. 6;

FIG. 7 shows in perspective and in opened condition a second embodiment of a collapsible container embodying the present invention that may be used to condition an additive to a final product, the concentrate remaining in the same container after its opening and in which the concentrate has been stored and shipped;

FIG. 8 shows in section along line 8-8 of FIG. 7 the opened container into which an additive is being introduced for mixture with the initial concentrate stored in the said opened container;

FIG. 9 is a plan view of the blank for preparation of the container of both embodiments of the present invention; and

FIG. 10 shows in section the container of the second embodiment of the present invention.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring now to the drawings and more particularly to FIG. 1, the reference character 10 denotes a folded or flat container according to the present invention This container as seen in FIGS. 2 and 3 includes joined

side panels

11 and 12 and

end panels

13 and 14, all made from a common blank B.

Transverse scoring lines

15, 16, 17 and 18 define the respective side and end panels. The side panel 12 in addition includes a flap or tab 19 beyond the scoring line 18 which as seen in FIG. 3 can be adhered or otherwise secured internally to the end panel 14 when the panels arefolded together along their respective score lines as seen in said FIG. 3 to form an endless band and tubular element along the respective scoring lines into closely collapsed condition or unfolded from that condition into an open parallelopiped as seen in FIG. 7, with

side panels

11 and 12 parallel to and spaced from each other and

end panels

13 and 14 likewise parallel to and spaced from each other. Bottom forming flaps 20.and 21 of substantially like shape are integral with the bottom edges of each

side panel

11 and 12 being demarked therefrom by aligned

scoring lines

22 and 23 from respective side panels so that when the container is in the flat or folded condition as viewed in FIG. 2, these flaps and 21 are positioned in folded parallel relationship between the

container side panels

11 and 12. Likewise, the end panel 13 includes an integral bottom forming flap 24 demarked therefrom by a scoring line 25 aligned with

scoring lines

22 and 23, and the end panel 14 also includes an integral bottom forming flap 26 demarked therefrom by a scoring line 27 also aligned with

scoring lines

22, 23 and 24. These

flaps

24 and 26 likewise lie positioned internally between the side panels when the container is in its flat or folded condition.

As seen in FIG. 9, the

respective flaps

20, 21, 24 and 26 are integral with their

respective panels

11, 12, 13 and 14 with the scoring or

fold lines

22, 23, 25 and 27 aligned and lying between each panel and its respective flap so that folding of the flaps thereon can be effected to allow the flaps to move relative to their respective panels.

As seen in FIG. 9, fiap 21 includes wider portion 21A and narrower portion 218 separated by a recessed portion 21C. The wider portion 21A includes an edge 21E that is parallel to scoring line 23 and in extent is slightly less in length than onehalf the length of fold line 23. An inwardly slanted side edge 21L extends from the intersection of scoring line 18 and fold line 23 toward edge 21E and joins it. The narrower portion 218 of less width than wider portion 21A includes edge 21N which is also parallel to scoring line 23. Side 216 of narrower portion 218 is generally perpendicular to edge 21N and em meets with a slanted edge 21M which latter joins the intersection of

fold lines

23 and 17.

Edges

21E, 21K and 21N are all parallel to each other, the edge 21E being furthermost from fold line 23 with edge 21K closest of the three edges to fold line 23. Additionally of the fiap portions defined by the e three

edges

21E, 21K and 2lN, portion 21B is narrower than widest portion 21A and the portion 21C of intennediate width lies between said widest and narrowest portions 21A and 21B.

Flap 20 is substantially identical in configuration to flap 21 and those sides and portions on flap 20 that find counter parts in flap 21 have the same lettering subscrips as those edges and portions of flap 21 except that they are prefaced by the reference 20 instead of 21. In flap 20, the portion 20B extends from recessed portion 20C to side edge 200 which is substantially aligned with fold line 15. A scoring or fold line 20? extends diagonally across flap 20 from fold line 22 to edge 20K defining a triangular portion 20X (shown shaded) which as will be described is ultimately adhered to flap 26.

Flap 24 is seen to be generally trapezoidal in shape with edge 24C parallel to scoring line 25 while edge 24B is aligned with fold line 27. Edge 24C is slightly shorter than scoring line 25 with edge 24H of flap 24 including an elongated slanted part and two short beveled and edge portions 240 and 24L at different ends of edge 24H. As can be seen in FIG. 9, edges 24L and 240 are approximately parallel to each other but offet slightly and with edge 24C of flap 24 approximately the same distance from scoring line 25 as edge 21K of flap 21 is from fold line 23, A scoring or fold line 24P extends diagonally across flap 24 from fold line 25 to edge 24C defining a triangular portion 24X (shown shaded) which as will be described is ultimately adhered to flap 21.

Flap 26 is a six-sided figure with edge 26B parallel to fold line 27 and approximately the same distance from it as edge 20B of flap 20 is from fold line 22. Edge 268 is approximately one-half the length of fold line 27 and approximately perpendicular to edge 26C which extends almost the entire width of flap 26 and meets with a slanted edge 26K, the latter extending to the intersection of scoring line 15 and fold line 27. As can be seen from FIG. 9, edge 26K is very small and thus edge 26C and scoring line 15 are nearly aligned. Edge 26D of flap 26 is parallel to edge 26C and meets with a slanted edge 26E which extends to fold line 27. The generally overall widths of

flaps

20 and 21 in their widest regions 20A and 21A are somewhat greater than one-half the width of

end panels

13 and 14 for purposes to be described.

When it is desired to assemble the blank B defined by the described panels and flaps as shown in FIG. 9 into a container that can be manipulated from a flat or folded condition seen best in FIGS. 1, 2 and 3, to an open or unfolded condition with the various flaps interengaging with eachother to form a closing bottom for the unfolded container, the blank B is first folded along the

scorings

22, 23, 25 and 27 to bring the respective flaps inwardly of their panels. Additionally, flaps 20 and 24 are both folded along their

diagonal scorings

20P and 24? and the shaded triangular portions 20X and 24X of said respective flaps are then movable foldably relative to the other portions thereof. The

panels

11, 12, 13 and 14 are then folded together along their

transverse scorings

15, 16, 17 and 18. Then the flap portion 24X which has been folded along scoring line 24? is glued or otherwise attached permanently to the underside (as viewed in FIG. 9) of flap 21 so that edge 24B of flap 24 lies adjacent fold line 23. Similarly, flap portion 20X which has been folded along scoring line 20P is glued or otherwise attached to the underside (as viewed in FIG. 9) offlap 26 so that side 200 of flap 20 is adjacent to fold line 27. With each

flap

24 and 26 now attached to an

adjacent flap

21 or 20 as just described, tab 19 is now attached to the inside face of end panel 14 (FIG. 3). At this time, all four

flaps

20, 21, 24 and 26 will project upwardly and lie between the folded together

panels

11, 12, 13 and 14 of the container which then is in its folded or flat condition (FIGS. 3 and 4).

When it is desired to open or unfold the assembled container 10, forces in direction of arrows X and Y are externally applied, for example, at the fold lines 15 and 17 of FIG. 3, so that each

end panel

13 and 14 will swivel parallelly relative to the other end panel, while each

side panel

11 and 12 will move laterally and parallel relative to the other side panel until the container is in the semiopen condition shown in FIG. 5. In this condition, all the

flaps

20, 21, 24 and 26 will have begun to rotate outwardly and downwardly on their

scorings

22, 23, 25 and 27 towards the bottom of the container with

edges

215 and 21L of flap 21 above the widest portion 20A of flap 20 and widest portion 21A of flap 21 directly above the portion 24X of flap 24 adjacent fold line 24F. Ofcourse, section 20X of flap 20 (not seen in FIG. 5) will be beneath the underside of narrower portion 268 of flap 26 having been previously at tached thereto. Scoring line 20P of flap 20 will then be beneath flap 26 as triangular portion 20X (not seen in FIG. 5) is attached to the underside of flap 26. Edge 21L of flap 21 will be almost directly above

edges

26D and 26E of flap 26. Similarly, portion 20A of flap 20 will be above the edges 2411 and 24L of flap 24. It is apparent from FIG. 5 that the corner formed by the intersection of edges 241-1 and 2411 serves to ensure that edge 20E of flap 20 will fall above the narrower portion 21B of flap 21 as the flaps unfold. in this way, wider portion 20A of flap 20 will always easily and smoothly unfold on top of narrower portion 21B and recessed portion 21C of flap 20.

Continued application of forces along X and Y against scoring lines and 17 will cause edges 2111 and 211 of flap 21 and edge 201-1 and 201 of flap to momentarily cross each other as seen in FIG. 6. As this is occurring a greater portion of the area of flap 24 adjacent edges 241-1 and 24L will be beneath widest portion 20A of flap 20 than is shown in FIG. 5 Similarly, narrower portion 218 will overlie a greater portion of flap 24 adjacent fold 24F and the portion of flap 26 adjacent edge 26C will cover a greater portion of flap 20 adjacent fold line 20? thanshown for both flaps in FIG. 5. Additionally, widest portion 21A of flap 21 will cover a larger portion of flap 26

adjacent sides

26D and 26E than was previously covered. After edges 2111, 211 and 20H,- 201 have crossed each other, continued application of forces to fold

lines

15 and 17 will move the container to the fully open or unfolded condition shown in FIG. 6. Here, edges 201 and 211 will lie interlocked adjacent each other with widest portion 20A of flap 20 overlying recessed portion 21C and narrower portion 218 of flap 21. Widest portion 20A of flap 20 will also cover the part of flap 24 that lies adjacent edges 24E and 24L. Similarly, portion 24X of flap 24 and the part of the flap adjacent to portion 24X will be beneath narrower portion'2lB of flap 21. Widest portion 21A of flap 21 adjacent side 21L will cover the part of flap 26

adjacent edges

26D and 26B and, also, cover narrower portion 208 and recessed portion 20C of flap 20. The part of flap 26 adjacent side 26C will cover portion 20X and adjacent parts of flap 20. Thus, the overlap of portion 21A of flap 21 relative to underlying portion 208 of flap 20 and similar overlap of portion 20A of flap 20 relative to portion 218 of flap 21 as well as the flap portions 20A and 24X which are secured to

respective flaps

21 and 26 as described above will stop further rotary movement of the flaps after they reach a substantially horizontal position perpendicular to the side and end panels, the four flaps over and underlapping then forming a closed bottom for the now-open container. An interlock in this condition is provided by the

edges

201 and 211, which-were forced passed each other during opening movement of the flaps thus preventing undesired collapse of the opened container.

Thus it can be readily seen that upon manipulation of the folded or flat container shown in FIG. 4 to the fully open or unfolded condition shown in FIG. 6, the flaps of the container will automatically interengage with and over and underlap each other to form a closed bottom for the container. Closure of the opened container can be effected, if desired, simply by applying forces along and externally at the scorings l6 and 18.

For ordinary use, as a carrier for solids such as french fries or other solid food products, the dispenser or other counterman need simply remove a folded container 10 and from a pile, apply opening forces to it at X and Y as described and introduce the solid product into the opened container and hand it to the purchaser. If a liquid product is to be dispensed, however, the container additionally may include a flexible pouch or envelope 60 of plastic, flexible leakproof material, preferably inert to contents to be inserted and whose lips are secured suitably as by glueing to upper linear faces of the four panels and whichenvelope lines their interior. When the container is unfolded to open condition as described, the envelope liner 60 likewise unfolds so that liquid contents can be introduced into the opened container and retained therein.

The foldable container thus far described can also be modified further to serve as a convenient packaging device for concentrates such as powdered food and gelatin products that require mixture with an additive such as a diluent to condition them for use.

If it is desired to use such a modified container as a package to store and ship a concentrate in a compact folded condition which when the package is opened and when the container is manipulated as described to an open or unfolded condition will retain the concentrate and also provide means to receive the required additive such as a diluent necessary to condition it for final actual use, the second embodiment described is further modified in addition to inclusion of the flexible leakproof pouch or envelope 60 attached to the upper inside faces of the panels of the container. in the described folded condition of the container, the pouch 60 is in collapsed condition and also has a required amount of concentrate C deposited therein (FIG. 10) which, however, is of small volume and does not interfere with folding together of the container, panels and flaps. After insertion of the filling,

cover members

61 and 62 secured in place as by sealing tear strips 64 and 63 all are mounted over the ends of the folded container to seal the open ends thereof and prevent leakage of the concentrate filling C. This compact sealed container package 10' permits safe preservation, storage and shipment of compact packages. Thus, the container panels l1, l2, and end panels 13', etc. and flaps 20', 21', etc. in a folded or flat condition as described with respect to container 10 will carry therein the pouch 60 in a collapsed state in the uppermost portion of the folded container 10' as seen in FIG. 10. The concentrate C such as powdered coffee, tea or milk, frozen juice, paste or the like is filled into pouch 60'. The

cover members

61 and 62 are releasably held in place over the top and bottom ends of the container 10 as by said tear strips 63 and 64 or by other conventional means.

When it is desired to condition the-concentrate C to its use ful state, the tear strips 63 and 64 and

closures

61 and 62 are removed. The folded container 10 is then manipulated from its flat or folded condition in the same way as the first and second embodiments to the openv or unfolded condition similar to that of the first embodiment seen in FIG. 7 with the flaps thereof forming a supporting bottom for the container 10' in the same way as previously described. The bottom of the pouch 60 will be supported by the unfolded flaps and the additive A for the concentrate C then may be introduced into the pouch as seen in FIG. 8. This eliminates the burdensome task of having to ship and store the concentrate in one container, and, for conditioning, to transfer it to a larger volumed container when it is desired to put the concentrate C into use. The concentrates that may be packaged with this embodiment of the present invention can be either edible or inedible, frozen or solid, semisolid, liquid or powder. Moreover, in the case, for example, of gelatin concentrates the opened package can even be used as mold for shaping the edible product into an attractive form after introduction of the additive to the opened container.

While specific embodiments of the invention have been described and shown, variations in structural detail within the scope of the appended claims are possible and are contemplated within the scope of the appended claims. There is no intention, therefore, of limitation to the exact abstract and dis closure herein presented.

lclaim:

l. A package including a foldable and unfoldablecontainer, said container comprising joined side panels and end panels with the latter panels separating the side panels and transverse scoring between adjacent panels to permit their folding and unfolding, separate flaps joined to and extending from a like edge of each of said panels, with scoring between each flap and the panel to which it is joined, the flaps extending from said side panels having substantially the same configuration and each having a hinged portion foldably connected to a different adjacent flap extending from an end panel, said flaps for said side panels each including a-first extended portion of selected width, a second portion of lesser width and a recessed portion between said extended portions, said side and end panels being movable from folded to unfolded condition and vice versa about said first-named scoring and said flaps being condition within the folded container, and means for sealing the container and retaining it in its folded condition.

2. A package as defined in claim 1 wherein the pouch means is of a leakproof material inert to a concentrate.

3. A package as defined in claim 1 wherein said means for sealing the container and retaining it in its folded condition comprises removable closure members provided on the top and bottom ends of the container.

UNITED STATES PATENT OFFICE CERTIFICATE OF CORRECTION Patent No. 3,5 53 Dated February 23, 1971 Inventor 5) Harold Donavon Wakefield It is certified that error appears in the above-identified patent and that said Letters Patent are hereby corrected as shown below:

Column 1, line 38, "of" (second occurrence) should read Column 1, line 51, "of" should be inserted before "flaps";

Column 2, line 22, "can" should be inserted after "also" Column 2, line &5, "of" should read or Column 3, line 59 "em" should be cancelled;

Column 3, line 6 cancel 'e" before "three" Column 4, line 5, "27" should read l7 Column 4, line 10, "offets" should read offset Column 5, line 4, "24H" (second occurrence) should read Column 5, line 58, "and" after "container 10" should be cancelled.

Signed and sealed this 13th day of July 1971.

(SEAL) Attest:

EDWARD M.FLETCH.ER,JR. WILLIAM E. SCHUYLER, J Attesting Officer Commissioner of Patent

Claims

1. A package including a foldable and unfoldable container, said container comprising joined side panels and end panels with the latter panels separating the side panels and transverse scoring between adjacent panels to permit their folding and unfolding, separate flaps joined to and extending from a like edge of each of said panels, with scoring between each flap and the panel to which it is joined, the flaps extending from said side panels having substantially the same configuration and each having a hinged portion foldably connected to a different adjacent flap extending from an end panel, said flaps for said side panels each including a first extended portion of selected width, a second portion of lesser width and a recessed portion between said extended portions, said side and end panels being movable from folded to unfolded condition and vice versa about said firstnamed scoring and said flaps being movable automatically upon movements of said panels from their folded condition to a bottom forming position wherein the wider extended portion of each flap overlies the recess and the portion of lesser width of the other side flap, a flexible collapsible pouch means containing a concentRate therein, the open mouth of said pouch means being secured internally and peripherally to and between said panels adjacent the upper edge of said container and lying above the upper edges of the inwardly folded flaps of said container in a partially collapsed condition within the folded container, and means for sealing the container and retaining it in its folded condition.