DOSAGE DEVICE

Abstract

The present invention concerns a flexible package which is designed to contain a product, for instance a spice or a cosmetic product, wherein the flexible package is joined together to create a closed package. A dosage device is further arranged on an inner face of the closed package, said dosage device comprising an elastic dosage membrane, which elastic dosage membrane, over at least a part of its width and length, is provided with a number of incisions.

Claims

1-23. (canceled)

24. Package of a flexible material designed to contain a product, which package is joined together to create a closed package, wherein, on an inner face of the closed package, a dosage device is arranged, comprising an elastic dosage membrane, which elastic dosage membrane over at least a part of its width and length is provided with a number of incisions, wherein the dosage device further comprises an opening device, which following mechanical compression stretches the dosage membrane.

25. The package according to claim 24, wherein the opening device comprises at least two expansion plates which are resilient.

26. The package according to claim 24, wherein the dosage device further comprises two or more closing plates.

27. The package according to claim 24, wherein, against an end of the flexible package, a weakened tear or perforated area is arranged.

28. The package according to claim 24, wherein the expansion plates, in each of their short ends, are coupled or connected to each other.

29. The package according to claim 24, wherein the incisions are designed through-going or almost through-going.

30. The package according to claim 24, wherein an inner face of the dosage membrane is welded to an outer face of the expansion plates, and on an outer face is welded to an inner face of the two layers of package material.

31. The package according to claim 24, wherein the expansion plates and the dosage membrane further are welded to the two layers of package material through the weld seam.

32. The package according to claim 24, wherein the dosage membrane is manufactured from a relatively elastic plastic film.

33. The package according to claim 24, wherein, on an inner face of each layer, a sealing plate is further arranged, which sealing plate, through a weld seam, is welded to the layer.

34. The package according to claim 24, wherein each sealing plate is arranged to abut an outer face of the dosage membrane.

35. The package according to claim 24, wherein the sealing plate is manufactured from a resilient or elastic material.

36. The package according to claim 24, wherein the sealing plates extend over the total length of the dosage device.

37. The package according to claim 24, wherein the incisions have the same or different sizes and/or design.

38. The package according to claim 24, wherein the incisions are designed as a cross, as partial incisions or have a circular or oval design.

39. The package according to claim 24, wherein the incisions are designed “almost through-going” in the layer.

40. The package according to claim 24, wherein the expansion plates are designed with a plurality of hinges.

41. The package according to claim 24, wherein the dosage device comprises two gripping devices.

42. The package according to claim 24, wherein the elastic dosage membrane is further provided with a completely or partially perforated longitudinal incision, which incision is arranged at a distance from the incisions.

43. The package according to claim 24, wherein the dosage device further comprises a set of resilient stiffening plates.

44. The package according to claim 24, wherein at least one of the expansion plates is designed with a protrusion or the like, said protrusion being provided with at least one through-going incision.

45. The package according to claim 24, wherein the at least one incision has a curved design.

Description

[0049] The above disclosed and other objects, features and advantages of the invention will become clear from the following more specific disclosure of the preferred, non-limiting embodiments of the invention, as illustrated in the appended drawings:

[0050] FIGS. 1A-1B illustrate a principal configuration of a first embodiment of a package of a flexible material according to the present invention, wherein FIG. 1A shows the flexible package in cross section seen from ahead (one of the side walls of the flexible package is removed), and FIG. 1B shows a cross section through the flexible package seen from the side, through a section A-A shown in FIG. 1A,

[0051] FIGS. 1C-1D illustrates a principal configuration of an alternative embodiment of the package shown in FIGS. 1A-1B, wherein FIG. 1C shows the flexible package in cross section seen from ahead (one of the side walls of the flexible package is removed), and FIG. 1D shows a cross section through the flexible package seen from the side, through a section A-A shown in FIG. 1C,

[0052] FIGS. 2A-2B shows a dosage device contained in the flexible package of FIGS. 1A-1D, seen from above, wherein the dosage device of FIGS. 2A and 2B is subjected to a different mechanical pressure,

[0053] FIGS. 3A-3B show a principal configuration of a second embodiment of a flexible package according to the present invention, wherein FIG. 3A show the flexible package in cross section seen from ahead (one of the side walls of the flexible package is removed), and FIG. 3B shows a cross section through the flexible package seen from the side, through a section A-A shown in FIG. 3A,

[0054] FIGS. 3C-3D illustrate a principal configuration of an alternative embodiment of the package shown in FIGS. 3A-3B, wherein FIG. 3C shows the flexible package in cross section seen from ahead (one side wall of the flexible package is removed), and FIG. 3D shows a cross section through the flexible package seen from the side, through a section A-A shown in FIG. 3C,

[0055] FIGS. 4A-4B show a dosage device and a “pouring device” according to the second embodiment of the flexible package shown in FIGS. 3A-3D, seen from above,

[0056] FIGS. 5A-5D show different embodiments of the package of a flexible material according to the present invention, in which flexible package a dosage device is arranged,

[0057] FIGS. 6A-6B show a dosage device contained in the flexible package of FIGS. 1A-1D, 3A-3D, seen from above, wherein expansion plates are formed with several “hinges” to achieve a desired geometric form for a dosage membrane by compressing the expansion plates,

[0058] FIGS. 7A-7B show a dosage device contained in the flexible package of FIGS. 1A-1D, 3A-3D, seen from above, wherein a dosage membrane is stretched by pulling apart internal expansion plates using an externally mounted gripping device which is glued or welded to the outer face of the flexible package,

[0059] FIGS. 8A-8B show a dosage device contained in the flexible package of FIGS. 1A-1D, 3A-3D, seen from above, wherein expansion plates on the outer face of the flexible package and the dosage membrane are stretched by pulling the expansion plates apart using an externally mounted gripping device which is glue or welded to the outer face of the expansion plates,

[0060] FIGS. 9A-9B show a principal configuration of a further embodiment of a flexible package according to the present invention, wherein FIG. 9A shows the flexible package in cross section seen from ahead (one side wall of the flexible package is removed), and FIG. 9B shows a cross section through the flexible package seen from the side, through a section A-A shown in FIG. 9A.

[0061] FIGS. 9C-9D illustrate a principal configuration of an alternative embodiment of the package shown in FIGS. 9A-9B, wherein FIG. 9C shows the flexible package in a cross section seen from ahead (one of the side walls of the flexible package is removed), and FIG. 9D shows a cross section through the flexible package seen from the side, through a section A-A shown in FIG. 9C,

[0062] FIGS. 10A-10B show a dosage device and a “pouring device” with a partly full opening according to the embodiments of the flexible package shown in FIGS. 9A-9D, seen from above,

[0063] FIGS. 11A-11B show a principal configuration of another embodiment of a flexible package according to the present invention, wherein FIG. 11A shows the flexible package in a cross section seen from ahead (one of the side walls of the flexible package is removed), and FIG. 11B shows a cross section through the flexible package seen from the side, through a section A-A shown in FIG. 11A, and

[0064] FIGS. 12A-12C show a principal embodiment of a closing mechanism to squeeze the expansion plates together after opening of the flexible package.

[0065] According to the present invention, a package of a flexible material shall be understood to be the same as a flexible package, and these terms will be used interchangeably in the present application.

[0066] In FIGS. 1A and 1B, a first embodiment of a package 1 of a flexible material according to the present invention is shown, and FIGS. 1C and 1D show an alternative embodiment of the embodiment shown in FIGS. 1A and 1B, wherein the flexible package 1 is filled with a grainy, granular, or powdery product. For example, the product may be ground or granular spices, such as salt, pepper, cinnamon, oregano, or the like.

[0067] FIGS. 1A and 1C show a “cross section” of the package 1 of a flexible material, wherein an outer layer 2 which forms a side wall in the flexible package 1 is removed. FIGS. 1B and 1D show a cross section through section A-A in the package 1 of a flexible material.

[0068] However, it is to be understood that the flexible package 1 according to the present invention may also be used to contain other products, such as different medical or cosmetic powders, for example talcum, powder, or a dry shampoo powder.

[0069] The flexible package 1 comprises two external layers 2, 3 which are arranged opposite each other and then joined 4 around their outer edges, so as to create a closed volume 5 in the flexible package 1, which closed volume 5, partly or completely, is filled with a product. The two outer layers 2, 3 will then each form a side wall, or frontal and rear walls, in the flexible package 1 when this is manufactured.

[0070] However, a person skilled in the art will understand that the flexible package 1 according to the present invention may also be provided from one layer which is folded about a folding edge and then joined 4 around its “open” edges; i.e., around three of its outer edges, for such to form a closed volume 5 in the flexible package 1.

[0071] The joining 4 of the outer edges of the layer(s) 2, 3 of the flexible package 1 may for example be performed with glue, welding with heat, ultrasound or laser, or using other similar joining techniques.

[0072] The joining 4 is to be understood to be such that it provides a tight connection in the flexible package 1, such that the product in the flexible package 1 for example does not loose its aroma and/or taste.

[0073] Against an end of the flexible package 1, there is arranged a weakened tear or perforated area 7, running substantially transverse to the width of the flexible package, when seen from ahead, so as to provide a opening mechanism in the flexible package 1 before use. The weakened tear or perforated area 7 is arranged such that it is also running through the closed volume 5, such that when the tear or perforated area 7 is torn or cut away, this will provide an opening of the flexible package 1.

[0074] Above the weakened tear or perforated area 7, a dosage device 8 is arranged, which dosage device 8 in this embodiment comprises a dosage membrane 11 and an opening device in the form of two expansion plates 9, 10. The expansion plates 9, 10 is in a suitable way coupled or connected in each of its short ends 12, so as to form a hinge function and resilient function in the dosage device 8. In this way, the expansion plates 9, 10 will, when a user presses the coupled short ends 12 of the expansion plates 9, 10 against each other, as shown with arrows A, be pushed away from each other so as to provide an opening between them, see also FIGS. 2A and 2B, wherein the size of the opening will vary depending on the magnitude of the mechanical pressure on the short ends 12. When the user releases the pressure, the expansion plates 9, 10 will resume their initial positions, in which initial position the expansion plates 9, 10 mainly are in contact with each other over their complete length.

[0075] The dosage membrane 11 will then be welded to each of the expansion plates 9, 10, over the total length of the expansion plates 9, 10, at an outer face of the expansion plates 9, 10, through the weld 13. The dosage membrane 11 is also welded to an inner face of each of the external layers 2, 3, through the weld 17. In addition, the short ends 12 of the dosage device 8, through the joint 4, also are welded to the external layers 2, 3. In this way, the expansion plates 9, 10, the dosage membrane 11, and the joint 4, will create a closed and tight delimitation of the closed volume 5 in the flexible package 1, when the expansion plates 9, 10 are not subjected to a mechanical compression or stretching. The expansion plates 9, 10 may in certain cases also be part of the weld connection 17. In such a case, the weld 17 will create a connection from the inner side of the external layers 2, 3, through the dosage membrane 11 and to the expansion plates 9, 10.

[0076] The weld 13 between the dosage membrane 11 and the expansion plates 9, 10 may be made as a continuous weld over the total length of the expansion plates 9, 10, or it may be made as a number of spot welds/part welds of a certain length, etc.

[0077] The expansion plates 9, 10 are made up of a thin, but relatively rigid plastic plate, which will also possess resilient properties.

[0078] The dosage membrane 11 is produced from a relatively elastic material or a film, wherein the dosage membrane 11 is perforated with a number of through-going incisions 14, at least over part of its width and length. The through-going incisions 14 may for example, as shown in FIG. 2B, be arranged in three rows.

[0079] The incisions 14 may also be formed as “almost through-going”, whereby they will be ripped open the first time the dosage device 11 is stretched.

[0080] As seen in figures, the length of the expansion plates 9, 10 and dosage membrane 11 will substantially correspond to at least the width of the closed volume 5 of the flexible package 1, when seen from ahead, such that the expansion plates 9, 10 and the dosage membrane 11 will be connected to the external layers 2, 3 also through the joint 4.

[0081] After having opened the flexible package 1, i.e., after tearing or cutting away the weakened tear or perforated area 7, the product held in the flexible package 1 may be poured out by applying a mechanical pressure to the edges of the flexible package 1, such as shown with arrows A in FIG. 1A. Depending on the magnitude of the mechanical pressure on the flexible package 1 and the expansion plates 9, 10, the dosage membrane 11 will, because of the opening provided between the expansion plates 9, 10, be stretched or pulled to a greater or lesser extent; and this also result in that the through-going incisions 14 are subjected to the same stretching or pulling, such as shown in FIGS. 2A and 2B.

[0082] In FIG. 1C, 1D an alternative embodiment of the package 1 shown in FIGS. 1A, 1B is illustrated, wherein, for simplicity, only the differences that exist between the embodiments shall be described.

[0083] In this alternative embodiment, the flexible package 1 can be provided in the same way as described concerning the embodiment shown in FIGS. 1A and 1B, i.e., in relation to the joining 4 of the layers 2, 3, for creating the closed volume 5, as well as the tear or perforated area 7. Above the weakened tear or perforated area 7, a dosage device 8 is arranged.

[0084] However, in this alternative embodiment, the dosage device 8 will be formed somehow differently, because the dosage device 8 comprises a dosage membrane 11, an opening device in the form of two expansion plates 9, 10, and two closing plates 18, 19. The expansion plates 9, 10, as disclosed in relation to FIGS. 1A and 1B, are in a suitable way connected or coupled in each of their short ends 12, so as to form a hinge and resilient function in the dosage device 8. Furthermore, through a weld 13, the dosage membrane 11 is connected to the expansion plates 9, 10 to an outer face of the expansion plates 9, 10. The dosage membrane 11, thorough a weld 19, is also connected to an inner face of the two layers 2, 3. The welds 13, 17, will then be arranged at a distance from each other. In this way, the expansion plates 9, 10, the dosage membrane 11, and the weld seam 4 will create a closed and tightly delimitation of the closed volume 5 in the flexible package 1. As disclosed earlier, the expansion plates 9, 10 may in certain cases be envisaged to be part of the weld connection 17. In such a case, the weld 17 will form a connection from the inside of the external layers 2, 3, through the dosage membrane 11, and to the expansion plates 9, 10.

[0085] The welding of the dosage membrane 11 and the expansion plates 9, 10 may be made as a continuous weld over the total length of the expansion plates 9, 10, and along the upper edge, or it may also be performed as a number of spot welds/part welds of a certain length, etc.

[0086] In order to provide a tight closure of the flexible package 1 and the dosage device 8, the closing plates 18, 19 are connected to an outer face of the expansion plates 9, 10, over the total length of the expansion plates 9, 10, and along lower edge of the expansion plates 9, 10, when seen in figures, through a weld 20. Thus, the welds 20, 13 will be arranged on opposite edges (ends) of the expansion plates 9, 10. Moreover, the closing plates 18, 19 are, as shown in FIG. 1C, connected to the flexible package 1 through the joint 4.

[0087] The dosage membrane 11 is produced from a relatively elastic material or a film, wherein the dosage membrane 11 is perforated with a plurality of through-going incisions 14, at least over a part of its width and length. The through-going incisions 14 may for example, as shown in FIG. 2, be arranged in three rows.

[0088] The dosage membrane 11 may also be formed with “almost through-going” holes or incisions 14, or material indications which will be teared open the first time the dosage membrane 11 is stretched.

[0089] The closing plates 18, 19 are manufactured from a thin, but relatively elastic material (e.g., an elastomer), and is formed specifically to provide the best possible closing properties. It is also possible to have the closing plates integrated as part of the expansion plates 9, 10, for example, by using plastic molding. Moreover, the closing plates 18, 19 may be formed with one or more lips or other shaping to provide the best possible closing features. A person skilled in the art will know how to do this, and thus, this is not further described here.

[0090] After opening the flexible package 1, i.e., after having teared or cut away the weakened tear or perforated area 7, the product contained in the flexible package 1 may be poured/delivered as described in relation to the embodiments shown in FIGS. 1A, 1B.

[0091] In FIG. 2A, the flexible package 1 is subjected to only a small mechanical pressure, in that the user has pressed onto the edges of the flexible package 1 at arrows A, i.e., at the edges of the expansion plates 9, 10. The expansion plates 9, 10 will then be pushed a distance apart, and this will tension or stretch the dosage membrane 11 out in a direction transverse of a direction of squeezing. This tension or stretching of the dosage membrane 11 will then result in that also the holes or incisions 14 are tensioned or stretched. The product contained in the flexible package 1 may then be sprinkled out from the flexible package 1 through the holes or incisions 14 in the dosage membrane 11.

[0092] In FIG. 2B, the flexible package 1 is subjected to a greater mechanical pressure than in FIG. 2A, wherein this has caused the dosage membrane 11 to be tensioned or stretched more out in the direction transverse to the direction of compression. This will also cause the holes or incisions 14 to become more open or larger, such that more of the product in the flexible package 1 may “sprinkle” out.

[0093] When the user finishes pouring the product from the flexible package 1, the user will release the pressure, and the expansion plates 9, 10 will then, due to their rigidity and elasticity, substantially return to their initial positions, and the holes or incisions 14 will close up. In addition, in the embodiment shown in FIG. 1C, 1D, the closing plates 18, 19 will be used to close the flexible package 1, as an extra security.

[0094] Thus, the above structure or design of the dosage device 8 will enable the user to regulate how much of the product held in the flexible package 1 can be poured/delivered, wherein a lesser pressure on the expansion plates 9, 10 will result in that a smaller amount of the product is poured/delivered, and a higher pressure on the expansion plates 9, 10 will result in that a larger amount of the product can be poured/delivered. I addition, the dosage device 8 provides an automatic closing of the flexible package 1 when the flexible package 1 is not used, both by substantially completely “closing” the through-going incisions 14 of the dosage membrane 11 when the flexible package 1 is not subjected to a mechanical pressure, as well as by the closing plates 18, 19, shown in FIGS. 1C, 1D, together also forms a substantially tight connection when the flexible package 1 is not subjected to a mechanical pressure and the expansion plates 9, 10 are joined together. Because of this, the product contained in the flexible package 1 will keep its aroma and/or taste longer.

[0095] FIGS. 3A-3B show another embodiment of a package 1 of a flexible material according to the present invention, wherein FIG. 3A shows the flexible package 1 seen from ahead, and FIG. 3B shows a cross section through the flexible package 1 from the side.

[0096] The flexible package 1 comprises two external layers 2, 3 which are put together and then joined/welded together around its outer edges with a weld seam 4, so as to create a closed volume 5 in the flexible package 1, which closed volume 5 is partly filled with a spice, for example.

[0097] Toward an end of the flexible package 1, there is arranged a weakened tear or perforated area 7, running transverse to the length of the flexible package 1, so as to provide an opening mechanism in the flexible package 1 before use. The weakened tear or perforated area 7 is arranged such that it also runs through the closed volume 5, such that when the weakened tear or perforated area 7 is ripped open or cut away an opening of the flexible package 1 is provided.

[0098] Above the weakened tear or perforated area 7, when seen in the Figure, a dosage device 8 is arranged, which dosage device 8 in this embodiment comprises a dosage membrane 11 and an opening device in the form of two expansion plates 9, 10. The expansion plates 9, 10 are coupled or connected in each of their short ends 12, so as to form a hinge or resilient function in the dosage device 8. The dosage membrane 11 will then be welded to the expansion plates 9, 10 over the entire length of the expansion plates 9, 10, on an outer face of the expansion plates 9, 10, through the weld 13. In addition, the short ends 12 of the dosage device 8 will also be welded to the two external layers 2, 3 through the weld seam 4.

[0099] For example, the expansion plates 9, 10 may be constituted by a thin, but relatively rigid material, a grid or the like.

[0100] The dosage membrane 11 is made from a relatively elastic plastic film, wherein the dosage membrane 11 is perforated with a plurality of through-going or partly through-going (almost through-going) incisions 14 at least over part of its width and length. The through-going incisions 14 may, for example, as shown in FIG. 2, be arranged in three rows.

[0101] It is to be understood that the through-going or partly through-going holes or incisions 14 may be arranged in more or fewer than three rows, that the through-going or partly through-going holes or incisions 14 may be arranged in a random pattern, and they may have the same or different shape and/or size.

[0102] After having opened the flexible package 1, i.e., after having ripped apart or cut away the weakened tear or perforated area 7, the product contained in the flexible package 1 may be poured out by applying a mechanical pressure on the edges of the flexible package 1, such as shown with arrows A in FIG. 1. Depending on how large the mechanical pressure on the expansion plates 9, 10 is, the dosage membrane 11 is stretched or is opened to a smaller or greater extent, and this also causes the holes or incisions 14 to be subjected to this stretching or opening, such as explained above and shown in FIGS. 2A and 2B.

[0103] As described above, the dosage membrane 11 is welded to an outer face of the expansion plates 9, 10 over the total length of the expansion plates 9, 10 by the weld 13, see also FIGS. 3A and 3B. According to this embodiment of the present invention, a set of resilient or elastic sealing plates 15, 16 is further arranged at an outer face of the dosage membrane 11 and the expansion plates 9, 10, such that one of the resilient or elastic sealing plates 15 will abut an outer face of the dosage membrane 11 (left side of the dosage membrane 11 shown in FIG. 3B), and the other resilient or elastic sealing plate 16 will abut an opposite outer face of the dosage membrane 11 (right side of the dosage membrane 11 shown in FIG. 3B).

[0104] The resilient or elastic sealing plates 15, 16 are moreover, through an outer face, welded to an inner face of the external layers 2, 3. This is shown through the welding seam 17.

[0105] Through the above described design of the dosage device 8 and the set of resilient or elastic sealing plates 15, 16, the resilient or elastic sealing plates 15, 16 will sealingly abut the outer face of the dosage membrane 11, such that the product held in the flexible package 1 cannot escape between the resilient or elastic sealing plates 15, 16 and the dosage membrane 11 when the dosage device 8 is used to pour or sprinkle out the product.

[0106] The design of the dosage device 8 and the set of the resilient or elastic sealing plates 15, 16 will also result in that a completely open package may be provided, such that the product contained in the flexible package is poured out.

[0107] In FIGS. 3C, 3D, an alternative embodiment of the package 1 shown in FIGS. 3A, 3B, wherein, for simplicity, only the differences that exist between the embodiments shall be described.

[0108] In this alternative embodiment the package 1 may be provided in the same way as described in relation to the embodiment shown in FIGS. 3A and 3B, i.e., in relation to the joining 4 of the layers 2, 3, the creation of the closed volume 5, as well as the tear or perforated area 7. Above the weakened tear or perforated area 7, a dosage device 8 is arranged. However, in this alternative embodiment, the dosage device 8 will be somehow differently designed, as the dosage device 8 comprises two expansion plates 9, 10, one dosage membrane 11, and two closing plates 18, 19. The expansion plates 9, 10 are, as described in relation to FIGS. 3A and 3B, in a suitable way joined at each of their short ends 12, so as to form a hinge and resilient function in the dosage device 8. Moreover, the dosage membrane 11 is through a weld connected to the expansion plates 9, 10, to an outer face of the expansion plates 9, 10.

[0109] The welding of the dosage membrane 11 and the expansion plates 9, 19 may be made as a continuous weld over the total length of the expansion plates, or it may also be performed as a number of spot welds, part welds of a certain length, etc.

[0110] To provide a tight closure of the package 1 and the dosage device 8, the closing plates 18, 19 are connected to an outer face of the expansion plates 9, 10 over the entire length of the expansion plates 9, 10, through a weld 20. The weld 20 is arranged at an opposite end of the weld 13. Further, as shown in FIG. 3C, the closing plates 18, 19 are connected to the package 1 through the joint 4.

[0111] The dosage membrane 11 is made from a relatively elastic material or a film, wherein the dosage membrane 11 is perforated with a number of through-going incisions 14, at least over a part of its width and length. The through-going incisions 14 may for example be arranged in three rows, as illustrated in FIG. 2.

[0112] The closing plates 18, 19 are produced from a thin, but relatively elastic plastic material (e.g., an elastomer), and, they are formed in particular to provide the best possible closing properties. It is also possible to contemplate the closing plates being integrated as part of the expansion plates 9, 10, for example by plastic molding. Moreover, the closing plates 18, 19 may be designed with one or more “lips” or other design to provide the best possible closing properties.

[0113] After opening the flexible package 1, i.e., after having torn open or cut away the weakened tear or perforated area 7, the product contained in the flexible package 1 may be poured/delivered by applying a mechanical pressure at the edges of the flexible package 1, such as shown by arrows in FIG. 1. Depending on how large the mechanical pressure is at the expansion plates 9, 10, the dosage membrane 11 will stretch or bend to a larger or lesser degree, and this also causes the through-going incisions 14 to be subjected to the stretching or bending, such as for example shown in FIGS. 2A and 2B.

[0114] The dosage membrane 11 is welded to an outer face of the expansion plates 9, 10, over the total length of the expansion plates 9, 10 through the weld 13, see also FIGS. 3A and 3B. According to this embodiment it is moreover arranged a set of resilient or elastic sealing plates 15, 16 at an outer face of the dosage membrane 11, and the expansion plates 9, 10, such that the resilient or elastic sealing plate 15 will abut an outer face of the dosage membrane 11 (the left side of the dosage membrane 11 shown in FIG. 3D), and the other resilient or elastic sealing plate 16 will abut an opposite outer face of the dosage membrane 11 (right side of the dosage membrane 11, show in FIG. 3D).

[0115] Moreover, through an outer face, the resilient or elastic sealing plates 15, 16 are welded to an inner face of the external layers 2, 3. This is shown through the weld seam 17.

[0116] After having opened the flexible package 1, i.e., after tearing away or cutting off the weakened tear or perforated area 7, the product contained in the flexible package 1 may be poured/delivered as described in relation to the embodiment shown in FIGS. 3A, 3B.

[0117] Concerning the embodiments illustrated in the FIGS. 3A-3D, it is to be noted that even if it is disclosed that a sealing plate 15, 16 is used on each side of the dosage membrane 1, it is to be understood that both sealing plates 15, 16, or only one sealing plate 15, 16, may be arranged at a side of the dosage membrane 11, whereby the dosage membrane 11 then at an opposite side will be welded to one of the side walls 2, 3.

[0118] In FIGS. 4A and 4B it is disclosed how a completely open package in the packages 1, described in relation to FIGS. 3A-3D, may be provided. Then, the user will first press together the expansion plates 9, 10 of the dosage device 8, as shown with arrow A in FIGS. 3A and 3C, and then push or shove one of the expansion plates 9, 10 transversely, as shown with arrow B, against the other of the expansion plates 10, 9. Because of the properties of the expansion plates 9, 10, the expansion plate 9 will flip over against the other expansion plate 10, and the dosage membrane 11, which is welded to the expansion plates 9, 10, will follow the movement of the expansion plate 9. Then, a full opening in the flexible package 1 is formed, such as shown in FIG. 4B, such that the product held in the flexible package 1 may be poured out.

[0119] In FIG. 4A, a small opening between the sealing plate 15 and the expansion plate 9 is shown; this being done to make the principal of providing a completely open, flexible package clear. A person skilled in the art would however understand that the sealing plates 15, 16 are arranged to abut the outer face of the dosage membrane 11 and the expansion plates 9, 10 in a sealing way, such as also described above, such that the product held in the flexible package 1 can not escape between the resilient or elastic sealing plates 15, 16 and the dosage membrane 11 when the dosage device 8 is used to measure out or sprinkle the product.

[0120] In FIG. 4B it is shown that the expansion plate 9 and the dosage membrane 11 has flipped over toward the expansion plate 10, whereby a full opening between the sealing plate 15 and the dosage membrane 11/expansion plate 9 is created, such that the content of the flexible package 1 may be poured out.

[0121] FIGS. 5A-5D show a number of possible embodiments of a package itself of the flexible package 1, according to the present invention. The dosage device 8 itself is only sketched; however, it is to be understood that the dosage device 8 is the same as described in the different embodiments shown in FIGS. 1A-1D, 3A-3D, such that any of these dosage devices 8 may be used in relation to the different embodiments of the flexible package 1 itself.

[0122] In FIG. 5A the flexible package 1 is provided by folding a material layer 2 together around a folding line S, an then the material layer 2 is around three of its edges joined through the joint 4 to form a closed flexible package 1.

[0123] In FIG. 5B the flexible package 1 is provided by folding the side edges of a material layer 2 in towards the center of the center line S of the material layer 2, one side edge overlapping the other, and then the material layer 2 is joined along a upper edge, lower edge and the center line S by a joint 4, for such to form a closed flexible package 1.

[0124] In FIG. 5C the flexible package 1 is formed as a standing bag, as one material layer 2 is folded and joined through the joint 4 in such a way that there is formed a bottom in the flexible package 1 in an opposite end of the mounted dosage device 8, and which ensures that the flexible package may be arranged “standing”.

[0125] In FIG. 5D it is shown that the flexible package 1 may also be provided in the form of a flexible pipe/tube, by longitudinal folding of a package material from a roll, followed by longitudinal welding, or by for example injection molding/extrusion of a suitable plastic material into a thin walled, flexible and closed profile, and both of these may be arranged as a “standing” package by for example mounting a plastic lid, plug or the like, into the opposite end of the mounted dosage device 8. The dosage device 8 will be arranged in the flexible package similarly as described in relation to FIGS. 1A-1D, 3A-3D, etc., both with and without a weld seam 4. In the embodiments wherein the flexible package 1 is not formed with a weld seam 4, the dosage device 8 will be fixed to an inner face of the wall(s) 2, 3 (which then is one material which is tubular) in the flexible package through weld 17 (see, also e.g., FIGS. 9A, 9C and 11A).

[0126] In these embodiments the dosage device 8 may be produced as a continuous ribbon, after which the ribbon is cut into suitable dosage units. Such a dosage device unit will be inserted into the opening in the top of the pipe or tube, such that the dosage device unit is left on an inner face and all around the total circumference of the pipe or tube, and exerting a certain pressure against the inner face of the pipe or tube. Then, the dosage device unit is welded to the pipe or tube with a weld connection 17, whereby the dosage device 8 not necessarily must be connected to the weld seam 4.

[0127] In FIGS. 6A-6B, a dosage device 8 is shown contained in the flexible package 1 in FIGS. 1A-1D, 3A-3D, 9A-9D, seen from above, wherein the expansion plates 9, 10 are formed with several interconnected “hinges” 21 over its length, to obtain a desired geometrical form for the dosage membrane 11 by pushing the expansion plates 9, 10 together, through mechanical pressure on the edges of the flexible package 1, such as shown with the arrows A. The expansion plates 9, 10 will then be constituted by a number of partial plates, for example three, which in a suitable way are assembled to create the “hinges”. A person skilled in the art will know how to perform this, thus, it is not described further herein. Then, two adjacent partial plates which form a hinge will then, by a mechanical pressure or stretch, form an angle to each other.

[0128] In FIGS. 7A-7B there is shown a dosage device 8 contained in the flexible package 1 according to the embodiments shown in FIGS. 1A-1D, 3A-3D, 9A-9D, seen from above, wherein the dosage membrane 11 is stretched as shown by arrows C, in that the internally mounted expansion plates 9, 10 are pulled apart with the fingers using the externally mounted gripping devices 22 which are glued or welded to the outer face of the flexible package 1.

[0129] FIGS. 8A-8B show a dosage device 8 contained in the flexible package 1 according to the embodiments shown in FIGS. 1A-1D, 3A-3D, 9A-9D, seen from above, wherein the expansion plates 9, 10 are glued or welded to the outer face of the flexible package 1, and the dosage membrane 11 is stretched by pulling apart the external expansion plates 9, 10 with the fingers as shown with arrows C using the externally mounted gripping devices 22 which are glued or welded to the outer face of the expansion plates 9, 10.

[0130] FIGS. 9A-9B show a third embodiment of a package 1 of a flexible material according to the present invention, wherein FIG. 9A shows the flexible package 1 seen from ahead, and FIG. 9B shows a cross section through the flexible package 1 from the side, through section A-A shown in FIG. 9A.

[0131] The flexible package 1 comprises two external layers 2, 3 which are assembled and then joined/welded together around their outer edges through a joint or weld seam 4, so as to form a closed volume 5 in the flexible package 1, which closed volume 5 is partly filled with for example a spice.

[0132] Towards an end of the flexible package 1 there is arranged a weakened tear or perforated area 7, running transverse to the length of the flexible package 1, so as to provide an opening mechanism in the flexible package 1 before use. The weakened tear or perforated area 7 is arranged such that it is also running through the closed volume 5, such that when the weakened tear or perforated area 7 is teared off or cut away, this will provide an opening in the flexible package 1.

[0133] Above the weakened tear or perforated area 7, and in a distance therefrom, there is arranged a dosage device 8, which dosage device 8 comprises two expansion plates 9, 10 and a dosage membrane 11. The expansion plates 9, 10 are connected in each of their short ends 12, so as to form a hinge and resilient function in the dosage device 8. Then, the dosage membrane 11 will be welded to the expansion plates 9, 10 over the entire length of the expansion plates 9, 10, at an outer face of the expansion plates 9, 10, through the weld 13. In addition, the short ends 12 of the dosage device 8 will also be welded to the two external layers 2, 3 by the weld seam 4.

[0134] The expansion plates 9, 10 may for example be constituted of a thin, but relatively rigid material, a grid or the like.

[0135] The dosage membrane 11 is made from a relatively elastic plastic film, wherein the dosage membrane 11 is perforated with a plurality of through-going or partly through-going (almost through-going) incisions 14, at least over a part of its width and length. The through-going incisions 14 may for example be arranged into rows, as illustrated in FIG. 2.

[0136] For example, the incisions 14 may possess a circular, oval, polygonal form, be straight incisions or the like, and may further be designed with the same or different opening.

[0137] After having opened the flexible package 1, i.e., after tearing off or cutting away the weakened tear or perforated area 7, the product held in the flexible package 1 may be poured out by applying a mechanical pressure at the edges of the flexible package 1, such as illustrated by arrows A in FIG. 9A. Depending on the magnitude of the mechanical pressure on the expansion plates 9, 10, the dosage membrane 11 will be stretched or opened to a lesser or greater degree, causing also the holes or incisions 14 to be subjected to said stretching or opening, such as explained above, and as illustrated in FIGS. 2A and 2B.

[0138] As described above, the dosage membrane 11 is welded to an outer face of the expansion plates 9, 10 over the total length of the expansion plates 9, 10 by the weld 13. Moreover, according to this embodiment of the present invention, there is arranged one set of resilient stiffening plates 23, 24, wherein the dosage membrane 11 is welded to an outer face of the stiffening plates 23, 24 over the total length of the stiffening plates 23, 24, with the weld 17. The welds 13 and 17 may be made as a continuous weld over the total length of expansion plates 9, 10 and/or stiffening plates 23, 24, or they may also be made as a number of spot welds, partial welds of a certain length, etc.

[0139] Moreover, the stiffening plates 23, 24 are welded to an inner face of each of the external layers 2, 3, by the weld 25. In addition, the short ends 12 of the dosage device 8 and the stiffening plates 23, 24 are also welded to the two external layers 2, 3 by the joint 4. In certain cases, the weld connections 17 and 25 may be combined by a weld. In such a case, the weld 25 can be dropped, and weld 17 forms a connection from the inner face of the external layers 2, 3, through the dosage membrane 11 and the stiffening plates 23, 24.

[0140] Further, the dosage membrane 11 is completely or partly perforated with at least one longitudinal incision 26, said incision substantially being arranged parallel to with and in the area between the welds 13 and 17, in a distance from the through-going or partly through-going (almost through-going) incisions 14. The perforation of the dosage membrane 11 may be performed with mechanical cutting, laser, etc.

[0141] By the above described embodiment of the dosage device 8 with the at least one perforated incision 26 in the dosage membrane 11, and the set of the resilient stiffening plates 23, 24, the at least one incision 26 will be expanded to a hole when the dosage membrane 11 at one side is stretched, by moving the expansion plates 9, 10 a distance in relation to one of the stiffening plates 23, 24 connected to one of the side walls 2, 3. Such a distance may for example be provided by applying a mechanical pressure onto the flexible package 1, as shown by arrows A in FIG. 9A.

[0142] The size of the hole created from the at least one incision 26 may partly be varied by the choice of length of the at least one perforated incision 26, and by the magnitude of the mechanical pressure applied to the flexible package 1 externally. The at least one incision 26 may also be placed asymmetrical at the dosage membrane 11 in relation to the symmetry line A-A in FIG. 9A for the flexible package 1.

[0143] When the dosage device 8 is used to dosage or sprinkle the product through the perforated incisions 14 in the dosage membrane 11, there is no tension in the at least one incision 26, and the product held in the flexible package 1 cannot “pour” out between the expansion plates 9, 10 and the stiffening plates 23,24.

[0144] In FIGS. 9C, 9D, an alternative embodiment of the flexible package 1 is shown, illustrated in FIGS. 9A, 9B, wherein only the differences existing between the embodiments shall be described, for simplicity reasons.

[0145] In this alternative embodiment, the flexible package 1 can be provided in the same way as described in relation to the embodiment shown in FIGS. 9A and 9B, i.e., in relation to the joining 4 of the layers 2, 3, the creation of the closed volume 5, as well as the tear or perforated area 7. Above the weakened tear or perforated area 7, there is arranged a dosage device 8.

[0146] However, in this alternative embodiment, the dosage device 8 will be somehow differently designed, in that the dosage device 8 comprises two expansion plates 9, 10, a dosage membrane 11, and two closing plates 18, 19. The expansion plates 9, 10 are, as described in relation to FIGS. 1A and 1B, in a suitable way joined at each of their short ends 12, so as to form a hinge or resilient function in the dosage device 8. Moreover, the dosage membrane 11 is, by a weld, connected to the expansion plates 9, 10 to an outer face of the expansion plates 9, 10.

[0147] The welding of the dosage membrane 11 and the expansion plates 9, 10 may be performed as a continuous weld over the total length of the expansion plates, or it may also be made as a number of spot welds, partial welds of a certain length, etc.

[0148] To provide a tight closing of the package 1 and the dosage device 8, the closing plates 18, 19 are connected to an outer face of the expansion plates 9, 10 over the entire length of the expansion plates 9, 10, through a weld 20. The weld 20 is arranged at an opposite end of the weld 13. Moreover, the closing plates 18, 19, as shown in FIG. 9C, are connected to the package 1 through the joint 4.

[0149] The dosage membrane 11 is made from a relatively elastic material or a film, wherein the dosage membrane 11 is perforated by a number of through-going incisions 14, at least over part of its width and length. The through-going or partly through-going (almost through-going) incisions 14 may for example be arranged in rows, as illustrated in FIG. 2.

[0150] The closing plates 18, 19 are produced from a thin, but relatively elastic plastic material (e.g., an elastomer), and are designed particularly to achieve the best possible closing properties. It is also contemplated that the closing plates 9, 10 are integrated as a part of the expansion plates 9, 10, for example by plastic molding. The closing plates 18, 19 may further be formed with one or more lips or other design to obtain the best possible closing properties.

[0151] After opening the flexible package 1, i.e., after having torn or cut away the weakened tear or perforated area 7, the product held in the flexible package 1 may be poured/delivered by applying a mechanical pressure onto the edges of the flexible package 1, as shown with arrows A in FIG. 9C. Depending on the magnitude of the mechanical pressure applied onto the expansion plates 9, 10, the dosage membrane 11 will be stretched or strained to a higher or lesser degree, causing the through-going incisions 14 to be subjected to this stretching or strain, e.g., such as illustrated in FIGS. 2A and 2B.

[0152] Further, according to this embodiment of the present invention, a set of resilient stiffening plates 23, 24 are arranged, wherein the dosage membrane 11 is welded to an outer face of the stiffening plates 23, 24 along the total length of the stiffening plates 23, 24 by the weld 17. The welds 13 and 17 may be made as a continuous weld over the total length of the expansion plates 9, 10 and/or stiffening plates 23, 24, or they may also be made as a number of spot welds, partial welds of a certain length, etc.

[0153] Moreover, the stiffening plates 23, 24 are welded to an inner face of each of the external layers 2, 3, by the weld 25. In addition, the short ends 12 of the dosage device 8 and the stiffening plates 23, 24 are also welded to the two external layers 2, 3 by the joint 4. In some cases the weld connection 17 and 25 may be combined into one weld. In such a case, the weld 25 can be dropped, and weld 17 forms a connection from the inner face of the external layers 2, 3 through the dosage membrane 11 and to the stiffening plates 23, 24.

[0154] The dosage membrane 11 is further completely or partly perforated with a longitudinal incision 26, wherein the incision is placed substantially in parallel with, and in the area between, the welds 13 and 17. The perforation of the dosage membrane 11 may be performed by mechanical cutting, laser, etc.

[0155] By the above described embodiment of the dosage device 8 with the perforated incision 26 in the dosage membrane 11, and the set of resilient stiffening plates 23, 24, the incision 26 will expand into a hole when the dosage membrane 11 at one side is stretched by moving the expansion plates 9, 10 in a distance in relation to the stiffening plates 23, 24, which are connected to one of the side walls 2, 3. Such a distance may for example be provided by applying a mechanical pressure onto the flexible package 1, as illustrated by arrows A in FIG. 9A.

[0156] The size of the hole formed by the incision 26 may be varied partly by the selected length of the perforated incision 26, and by the magnitude of the mechanical pressure applied externally to the flexible package 1. The incision 26 may also be placed asymmetrically onto the dosage membrane 11 in relation to the symmetry line A-A in FIG. 9A for the flexible package 1.

[0157] When the dosage device 8 is used to administer or sprinkle the product through the perforated incisions 14 of the dosage membrane 11, there is no tension applied to the incision 26, and the product held in the flexible package 1 cannot “pour” out between the expansion plates 9, 10 and the stiffening plates 23, 24.

[0158] In FIGS. 10A and 10B, there is shown how to provide a partly open package in the flexible package 1, which is described in relation to FIGS. 9A-9D. Firstly, the user will then press the expansion plates 9, 10 of the dosage device 8 together, as shown by arrows A, and then transversely push or shove one of the expansion plates 9, 10, as shown by arrow B, against the other one of the expansion plates 10, 9. Due to the properties of the expansion plates 9, 10, the expansion plate 9 will flip over towards the other expansion plate 10, and the dosage membrane 11, which is welded to the expansion plate 9, 10, will attempt to follow the movement of the expansion plate 9.

[0159] Because also the dosage membrane 11 is welded to the outer face of the stiffening plates 23, 24, the dosage membrane 11 will be stretched and an opening in the incision 26 will be provided. Thus, an opening in the flexible package 1 is formed, as shown in FIG. 10B, such that the product held in the flexible package 1 may be poured out. The size of the opening is decided by the length of the at least one incision 26, and how much the expansion plates 9, 10 of the dosage device 8 are pushed together.

[0160] In FIG. 10B it is shown that the expansion plate 9 and the dosage membrane 11 have flipped over towards the expansion plate 10, whereby the at least one incision 26 in the dosage membrane 11 is stretched to widen into an opening, such that the contents of the flexible package 1 may be poured out.

[0161] It is to be understood that according to the embodiments described in relation to FIGS. 9A-9D it is also possible to provide two separate, distinct incisions 26, arranged on each side of section A-A, out towards the side edges of the flexible package 1. The incisions 26 may have different sizes, such that the user himself/herself may choose if a lesser or greater pouring of the product held in the flexible package 1 is desired. A person skilled in the art will also understand that the at least one incision may be provided in different ways, for example, the elastic dosage membrane 11 may be produced from two membrane parts arranged edge-to-edge, or with some overlap on each other, and then the membrane parts are welded together over parts of the adjacent edges/overlapping parts. The areas not welded together will then form one or more incisions 26 in the elastic dosage membrane 11.

[0162] FIGS. 11A-11B show an additional embodiment of a package 1 of a flexible material according to the present invention, wherein FIG. 11A shows the flexible package 1 seen from ahead, and FIG. 11B shows a cross section through the flexible package 1 from the side, through the section A-A shown in FIG. 11A.

[0163] The flexible package 1 comprises two external layers 2, 3 arranged above each other and then joined 4 around their outer edges, so as to form a closed volume 5 in the flexible package 1, which closed volume 5 is partly or completely filled with a product.

[0164] Towards an end of the flexible package 1 there is provided a weakened tear or perforated area 7, substantially extending transverse to the width of the flexible package 1, when seen from ahead, so as to provide an opening mechanism in the flexible package 1 before use.

[0165] Above the weakened tear or perforated area 7 there is arranged a dosage device 8, which dosage device 8 comprises two expansion plates 9, 10 and a dosage membrane 11. The expansion plates 9, 10 are in a suitable way coupled or connected in each of their short ends 12, for such to form a “hinge or resilient function” in the dosage device 8.

[0166] In this way, the expansion plates 9, 10, when a user presses the connected short ends 12 of the expansion plates 9, 10 against each other, such as shown by arrows A, will be pressed away from each other, for such to provide an opening between them (see, also FIGS. 2A and 2B), wherein the size of the opening will vary depending on the magnitude of the mechanical pressure on the short ends 12. When the user releases the pressure, the expansion plates 9, 10 will resume their initial position, in which initial position the expansion plates 9, 10 substantially are in contact with each other over their entire length.

[0167] Then, the dosage membrane 11 will be welded to each of the expansion plates 9, 10 over the complete length of the expansion plates 9, 10, on an outer face of the expansion plates 9, 10, by the weld 13. The dosage membrane 11 is also welded to an inner face of each of the external layers 2, 3, by the weld 17. In addition, the short ends 12 of the dosage device 8 will also be welded to the two external layers 2, 3 through the fusion 4. In this way, the expansion plates 9, 10 the dosage membrane 11, and the fusion 4 will form a closed and tight delimitation of the closed volume 5 in the flexible package 1 when the expansion plates 9, 10 are not subjected to a mechanical pressure or tension. The expansion plates 9, 10 may in certain cases also be contemplated to constitute a part of the weld 17. In such a case the weld 17 will form a connection from the inner side of the external layers 2, 3, through the dosage membrane 11, and to the expansion plates 9, 10.

[0168] The weld 13 between the dosage membrane 11 and the expansion plates 9, 10 may be made as a continuous weld over the complete length of the expansion plates, or it may be also be made as a number of spot welds/partial welds of a certain length, etc.

[0169] The expansion plates 9, 10 are constituted by a thin, but relatively rigid plastic plate, which will also possess resilient properties.

[0170] The dosage membrane 11 is produced from a relatively elastic material or a film, wherein the dosage membrane 11 is perforated with a number of through-going incisions 14, at least over part of its width and length, wherein the through-going incisions 14 are curved shaped.

[0171] The incisions 14 may also be formed as “almost through-going”, whereby they will be teared open the first time the dosage device 11 is stretched.

[0172] As shown in the figures, the length of the expansion plates 9, 10 and the dosage membrane 11 will substantially correspond to at least the width of the closed volume 5 in the flexible package 1, seen from ahead, such that the expansion plates 9, 10 and the dosage membrane 11 will be connected to the external layers 2, 3 also through the joint 4.

[0173] After opening the flexible package 1, i.e., after tearing open or cutting away the weakened tear or perforated area 7, the product contained in the flexible package 1 may be poured out by applying a mechanical pressure onto the edges of the flexible package 1, such as shown with arrows A in FIG. 11A. Depending on the magnitude of the mechanical pressure on the flexible package 1 and the expansion plates 9, 10, the dosage membrane 11 will, because of the opening provided between the expansion plates 9, 10, be stretched or tensioned to a higher or lesser degree, and this causes also the through-going incisions 14 to be subjected to the same stretching or tensioning.

[0174] In this embodiment, the through-going incisions 14 are arranged just below an upper edge 27 of the expansion plates 9, 10. This means that, prior to the expansion plates 9, 10 being pressed away from each other, the through-going incisions 14 will be subjected to no tension and with a light pressure against the expansion plates 9, 10, and consequently, a very good sealing between the dosage membrane 11 and the walls of the expansion plates 9, 10 is obtained.

[0175] When the expansion plates 9, 10 are pressed away from each other, the dosage membrane 11 is stretched, and the incisions 14 are stretched and “pulled” over the edge 27, such that the holes or the incisions 14 (as previously shown in FIGS. 2A and 2B) appear. The size of the holes or incisions 14 is depending on how much the dosage membrane 11 is stretched.

[0176] When the expansion plates 9, 10 return to the not tensioned initial position the dosage membrane slides back over the edge 27, the holes or incisions 14 close and are arranged with a slight pressure against the outer side of the expansion plates 9, 10.

[0177] In this embodiment, previously described closing plates 18, 19 are not necessarily used; however, in certain cases it may be suitable to use the closing plates 18, 19 as extra security.

[0178] FIGS. 12A-12C show an embodiment of the dosage device 8 which is modified to comprise a closing mechanism, wherein FIG. 12A shows the dosage device 8 with a closing mechanism seen from ahead, and FIGS. 12B and 12C show a cross section through the dosage device 8 with a closing mechanism from the side, through section A-A shown in FIG. 12A.

[0179] In such an embodiment, the dosage device 8 will comprise two expansion plates 9, 10, a dosage membrane 11, and the closing mechanism with a locking device 28.

[0180] The closing mechanism shown in FIGS. 12A-12C may in one embodiment be formed as a curve shaped through-going incision 28, wherein the curve shaped, through-going incision 28 forms a locking device, at one end of the expansion plates 9, whereby one of the expansion plates 9 then is formed with a extension 30 or the like. When the resilient expansion plates 9, 10 return to the initial position without tension, the curve formed “flap”, which is formed by the curve formed through-going incision 28, is flipped over the edge of the expansion plate 10, and thus, will squeeze the two expansion plates 9, 10 together. To release the two expansion plates 9, 10 from each other, the curve shaped “flap” is flipped back.

[0181] A person skilled in the art will understand that the closing mechanism shown in FIG. 12A-12C may also be achieved with other designs and cutting of the two expansion plates 9, 10.

[0182] To improve the sealing between the two expansion plates 9, 10 in the position without tension even more, the inner face of the expansion plates 9, 10 may be coated with a sealing ribbon 29 in one or more strips. The sealing ribbon 29 may for instance be comprised of a thin, soft plastic coating, applied in the form of a tape, or as a thin strain of glue. The package ribbon 29 may have different design on one of the expansion plates compared to the other, or may be applied only on one of the two expansion plates 9, 10.

[0183] Moreover, a person skilled in the art will understand that a zip-lock may be used with all the described embodiments of the flexible package according to the present invention, as an extra security. Then, the zip-lock will be arranged within the weakened tear or perforated area 7. The skilled artisan will know how to perform this, and thus, this is not described further herein.

[0184] The present invention has now been disclosed by means of several non-limiting embodiments. However, a person skilled in the art will understand that several modifications and variations may be made in the described flexible package within the scope of protection as defined by the claims.