US20040096127A1 - Container - Google Patents
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- Publication number
- US20040096127A1 US20040096127A1 US10/450,925 US45092503A US2004096127A1 US 20040096127 A1 US20040096127 A1 US 20040096127A1 US 45092503 A US45092503 A US 45092503A US 2004096127 A1 US2004096127 A1 US 2004096127A1
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- US
- United States
- Prior art keywords
- container
- compartment
- duct means
- walls
- contents
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D31/00—Bags or like containers made of paper and having structural provision for thickness of contents
- B65D31/16—Bags or like containers made of paper and having structural provision for thickness of contents of special shape
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
- B65D75/52—Details
- B65D75/58—Opening or contents-removing devices added or incorporated during package manufacture
- B65D75/5861—Spouts
- B65D75/5866—Integral spouts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
- B65D75/008—Standing pouches, i.e. "Standbeutel"
Definitions
- the present invention relates to a container for liquid contents and, more specifically, such a container comprising a compartment which is defined by flexible walls and whose volume depends on the relative position of the walls, and a duct means which forms a connection between said compartment and the surroundings.
- a container of the type described by way of introduction is known from e.g. WO 9941155.
- the container described therein is of a collapsible type and comprises three walls, viz. two opposite side walls and a bottom wall.
- the walls which are made of a plastic material are flexible and interconnected to form a compartment whose volume depends on the relative position of the walls.
- the container has a duct means which either may consist of a tubular piece introduced between the side walls or is formed integrally with the side walls.
- a frequent problem associated with this type of container relates to the provision of durable reseal-ability of the container, i.e. to ensure that it remains sealed for a reasonable period when stored, for instance, in a refrigerator.
- the container is opened, for example, by cutting open the duct means, after which the liquid product held in the container can be poured.
- This durable resealability is achieved with the aid of openable and closable connecting means, such as a screw cap, which are connected to the duct means, or with the aid of pinching means applied over the duct means.
- a first object of the present invention thus is to provide an improved container of the type described by way of introduction.
- Another object is to provide such a container allowing improved durable resealability.
- a container for liquid contents comprising a compartment which is defined by flexible walls and whose volume depends on the relative position of the walls, a flexible duct means which forms a connection between said compartment and the surroundings, the duct means being bringable to an open state and to a closed state, and the compartment having a bottom region, in which the liquid contents are essentially collected as the container assumes an upright position, said container being characterised in that said walls, by being actuated by said contents when collected in said bottom region, are adapted to assume a relative position acting for an increase in volume of the compartment, which increase in volume is counteracted by a negative pressure generated in the compartment, said duct means is adapted to be brought to said closed state in response to the negative pressure generated in the compartment, and said duct means is extended from the compartment at an angle to a longitudinal axis of the container.
- the container comprises walls which, by being actuated by the liquid contents, may assume different positions affecting the volume of the compartment. It will be ensured that the walls assume a position acting for an increase in volume of the compartment as the container assumes an upright position. Thus a negative pressure is generated in the compartment, said negative pressure counteracting the increase in volume and besides causing the duct means to be closed.
- the extent of the duct means from the compartment at an angle to a longitudinal axis of the container prevents the pressure which the contents exert on the side walls of the container from propagating to the duct means.
- the duct means When handling the inventive container, the duct means will thus be closed when a pouring motion is terminated and the container is made to assume its upright position once more.
- the need for mechanical durable sealing measures in the form of e.g. screw caps or clips is eliminated.
- the inventive container comprises two opposite side walls which are joined along a common connecting portion and which in a non-actuated state strive to abut flush with each other.
- the duct means is formed integrally with said side walls and is advantageously formed of two projecting wall portions, abutting flush with each other, of the side walls, said wall portions being joined with each other along their edges.
- the duct means has inner surfaces which face each other and are made to abut each other in a sealing manner when the duct means is closed in response to the negative pressure generated in the compartment.
- Said surfaces advantageously have a high degree of flatness, which contributes to ensuring an air-tight durable seal of the duct means in response to a negative pressure generated in the compartment.
- the container is preferably made of a material containing a filler of mineral material and a binder of polyolefin material.
- the filler is advantageously chalk (calcium carbonate).
- a carrying means is arranged on a first side of the container.
- the carrying means is advantageously arranged in said connecting portion.
- the duct means is arranged in an outlet area located on a second side of the container and at a distance from said bottom region. Said second side is advantageously opposite to said first side.
- the duct means extends perpendicular to a longitudinal axis of the container.
- the duct means is preferably sealed in an unopened state of the container and is openable by cutting or like operation.
- FIGS. 1 a and 1 b are perspective views of a preferred embodiment of an inventive container in a filled and non-opened state.
- FIG. 2 is a top plan view of the container shown in FIGS. 1 a and 1 b , some parts being removed to illustrate the construction of the container.
- FIGS. 3 a and 3 b are perspective views of the container shown in FIGS. 1 a and 1 b in a filled and opened state.
- FIG. 4 is a cross-sectional view along line A-A in FIG. 3 a.
- FIG. 5 is a perspective view of the container shown in FIGS. 3 a and 3 b during a pouring motion.
- FIG. 6 is a cross-sectional view along line B-B in FIG. 5.
- FIGS. 7 a - 7 c are perspective views showing the handling of the container shown in FIGS. 3 a and 3 b for pouring some of the contents held in the container.
- FIG. 8 is a top plan view of a second embodiment of an inventive container with a duct means extended from the compartment at an acute angle to a longitudinal axis of the container.
- FIGS. 1 a and 1 b illustrate a preferred embodiment of an inventive container 1 in an unopened state and filled with liquid contents.
- the container 1 is particularly suitable for liquid food products such as milk, fruit juice, water or wine.
- the container 1 is of a collapsible type, i.e. compressible or foldable, and comprises to this end three flexible walls, two of which are opposite side walls 2 and one is a bottom wall 3 .
- the walls 2 , 3 can be made of a plastic material or preferably of a material containing a filler of mineral material and a binder of polyolefin material.
- the filler is advantageously chalk.
- the walls 2 , 3 are further interconnected to form a compartment 4 whose volume depends on the relative position of the walls 2 , 3 and which is clearly shown in FIG. 2.
- the two side walls 2 are joined by welding along a connecting portion 5 .
- the flexible walls 2 , 3 are formed in such manner and have such rigidity that said side walls 2 in a non-actuated state, which corresponds to the empty state of the container 1 , strive to abut flush with each other. If the walls contain a mineral-based filler, such as chalk, said rigidity is essentially obtained by means of the filler.
- the inventive container 1 When the inventive container 1 is filled with liquid contents, the contents will actuate the walls 2 , 3 to such a degree that they assume a relative position in which the compartment 4 defines a volume that is necessary to hold the contents.
- the container 1 is, as mentioned above, of a collapsing type, which means that the volume defined by the compartment 4 decreases as the container 1 is emptied of its contents.
- a carrying means 6 is arranged in the connecting portion 5 at a first side of the container 1 and comprises in the shown embodiment an opening area 8 with a first, essentially round opening 9 and a second, essentially elongate opening 10 .
- the carrying means 6 forms a handle 11 which makes it possible for a user to lift the container 1 using four fingers, while at the same time a load-absorbing portion 12 is formed between the openings 9 , 10 , preventing the handle 11 from being folded or deformed in some other way in the handling of the container 1 .
- the two openings 9 , 10 of the handle 11 extend at an angle of about 25° to a vertical line through the container 1 . Tests have demonstrated that an angle in the range 20-30° results in good user-friendliness in the handling of the container 1 .
- FIG. 2 is a top plan view of the container 1 illustrated in FIGS. 1 a and 1 b , the nearest side wall 2 being removed. Now it is possible to see the inside of a rear side wall 2 , a bottom wall 3 and the design of the connecting portion 5 , along which the two side walls 2 are connected with each other.
- the side walls 2 are connected with the bottom wall 3 , on the one hand via a lower connecting portion 14 along which each side wall 2 is connected with the bottom wall 3 and, on the other hand, via two lateral connecting portions 5 along which all three walls 2 , 3 are connected with each other in a common welded joint.
- the compartment 4 of the container 1 is thus defined by the side walls 2 and the bottom wall 3 .
- the connecting portion 5 forms boundary lines 16 facing the compartment 4 .
- the compartment 4 comprises a bottom area 13 as mentioned above, a central area 17 in which boundary lines 16 , facing the compartment 4 , of the connecting portions 5 are parallel, and an upper arched area 18 , in which the boundary lines 16 extend essentially arcuately towards each other, however, not in an outlet area 19 at a second side 20 of the container 1 , which outlet area 19 will be described in more detail below.
- This design makes it possible for the container 1 to stand in a stable manner independently of the extent to which it is filled.
- the inventive container 1 also has a duct means 22 , which is arranged at a distance from the bottom region 21 in said outlet area 19 .
- the duct means 22 is arranged on the second side 20 of the container 1 , which is opposite to said first side 7 , on which the carrying means 6 is arranged.
- the duct means 22 is formed integrally with the side walls 2 . More specifically, the duct means 22 is formed of a wall portion 23 of each side wall 2 . Each wall portion 23 extends at an angle to a longitudinal axis of the container and thus forms a laterally extending projection of each side wall 2 , and the wall portions 23 are connected with each other along their lateral edges, which are thus included in said connecting portion 5 .
- the interconnected wall portions 23 thus forms said duct means 22 which at a first end 24 communicates with the compartments 4 of the container 1 and at a second end 25 is sealed by said connecting portion 5 .
- the wall portions, and thus also the duct means extend from the compartment 4 at an angle to a longitudinal axis of the container 1 , it is ensured that the pressure caused by the liquid contents and acting on the walls of the container is not propagated to the duct means.
- the duct means has an essentially perpendicular extent to said longitudinal axis. It is noteworthy that the duct means 22 consists of two wall portions 23 , which are sealed along their edges and which are flexible and each have an inner surface 26 , which inner surfaces in a state without actuation by said contents abut flush with each other.
- the second end 25 of the duct means 22 is removed by cutting or like operation. Of course, such cutting can be made to form an opening with an optional angle. A thus opened container 1 is illustrated in FIGS. 3 a and 3 b.
- FIG. 4 is a cross-sectional view of the container 1 shown in FIG. 3 a .
- the contents will act on the side walls 2 in the bottom region 21 to such an extent that the side walls are moved away from each other and consequently assume a relative position acting to increase the volume of the compartment.
- the arched area 18 of the compartment 4 will, however, not hold any contents—or, as mentioned above, only a small part of the contents—whereby the side walls 2 in this area strive to abut against each other, which in turn results in an increase in volume of the compartment 4 .
- the increase in volume is greater than the decrease in volume, which results in the forming of a negative pressure in the compartment 4 , which counteracts the increase in volume.
- FIG. 5 shows an inventive container 1 which is subjected to a pouring motion
- FIG. 6 is a cross-sectional view of the container 1 illustrated in FIG. 5.
- the container 1 is moved from an upright position to a forwardly inclined position
- FIG. 6 shows how some of the contents has been brought to the arched area 18 of the compartment 4 , whereby the resulting increase in volume in this area 18 is to some extent compensated for by a decrease in volume in the bottom region 21 .
- the relative change in volume is adjusted in such manner that the negative pressure prevailing in the compartment 4 ceases.
- FIGS. 7 a - 7 c illustrate how the above-described inventive container 1 is handled for pouring liquid contents, such as milk, held in the container 1 .
- FIG. 7 a illustrates the opened container 1 in an upright position on a base. The liquid contents are collected in said bottom region 21 .
- FIG. 7 b shows the container 1 in a lifted state while performing a pouring motion, whereby some of the contents held in the container 1 is brought from the bottom region 21 to the arched region 18 and the associated outlet area 19 .
- the liquid contents will be passed to the duct means 22 and thereby exert a pressure which makes the wall portions 23 of the duct means 22 and their inner surfaces 26 separate to allow pouring some of the contents into a glass 27 .
- the pressure exerted by said contents on the side walls 2 in the bottom region 21 will decrease, thus making the side walls strive to be moved towards each other, resulting in a decrease in volume of the compartment 4 .
- This decrease in volume is relatively greater than the increase in volume taking place in said arched area 18 , which results in the negative pressure prevailing in the compartment ceasing.
- FIG. 7 c the container 1 has once more been brought to the upright position.
- the contents will again be collected in said bottom region 21 , which means that the contents will once more exert pressure on said side walls 2 , thus resulting in an increase in volume of the compartment 4 .
- This increase in volume implies that a negative pressure counteracting the increase in volume is once more generated in the compartment 4 .
- This negative pressure contracts the side walls 2 in the part of the compartment 4 that does not contain liquid contents, which part thus forms the arched area 18 of the container and may also comprise a greater or smaller part of the bottom region depending on the degree of filling of the container, and thus ensures that said side walls 2 in said part of the compartment 4 are retained in the state in which they abut each other.
- the duct means 22 is adapted to be closed in response to a negative pressure generated in the compartment 4 .
- the extent of the duct means at an angle to the longitudinal axis of the container ensures that the pressure exerted by the liquid contents on the walls of the container cannot be propagated to the duct means, which will thus not be subjected to pressure acting to open the same.
- a durable seal of the container 1 is obtained, which prevents ambient air from entering the compartment 4 of the container and affecting the contents thereof.
- the inventive container 1 is thus durably self-sealing, which means that the need for mechanical durable sealing measures, such as sealing by means of a cap or clip, is eliminated.
- the present invention thus concerns a durably self-sealing container 1 .
- the container 1 comprises a duct means 22 which is openable for example, by cutting.
- the container 1 has flexible walls 2 , 3 , which during handling of the container 1 are actuated by liquid contents held in the container 1 , in such manner that the volume of a compartment 4 defined by the walls 2 , 3 decreases when performing a pouring motion and increases when bringing the container 1 to an upright position.
- Said increase in volume results in generation of a negative pressure in the compartment 4 , which negative pressure counteracts the increase in volume and ensures that the open duct means 22 is sealed.
- the lateral extent of the duct means 22 i.e.
- the fact the duct means is extended at an angle to a longitudinal axis of the container ensures that the pressure exerted by the contents on the walls of the container does not propagate to the duct means. As a result, a durable seal is ensured, which prevents air from entering the compartment 4 of the container 1 via the duct means 22 and affecting the contents thereof.
- the inner surfaces 26 of the duct means 22 have a high degree of flatness.
- FIG. 8 shows another embodiment of a container 1 according to the present invention with a duct means 22 extended from the compartment 4 at an angle of less than 90° to a longitudinal axis of the container 1 .
- the present invention is not restricted to the shown embodiment of the inventive container 1 ; for instance, the duct means can be integrated in the container 1 , i.e. it does not have to project from the container 1 but only from the compartment 4 .
- the duct means can be integrated in the container 1 , i.e. it does not have to project from the container 1 but only from the compartment 4 .
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Packages (AREA)
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
- Closures For Containers (AREA)
- Bag Frames (AREA)
- Details Of Rigid Or Semi-Rigid Containers (AREA)
Abstract
A container for liquid contents, comprising a compartment (4) which is defined by flexible walls (2, 3) and whose volume depends on the relative position of the walls (2, 3), a flexible duct means (22), which forms a connection between said compartment (4) and the surroundings. The duct means is bringable to an open state and to a closed state. The compartment (4) has a bottom region (21), in which the liquid contents are essentially collected as the container assumes an upright position. Said walls (2, 3) are, by being actuated by said contents when collected in said bottom region (21), adapted to assume a relative position acting for an increase in volume of the compartment (4), which increase in volume is counteracted by a negative pressure generated in the compartment (4). The duct means (22) is adapted to be brought to said closed state in response to the negative pressure generated in the compartment (4), and is extended from the compartment at an angle to a longitudinal axis of the container.
Description
- The present invention relates to a container for liquid contents and, more specifically, such a container comprising a compartment which is defined by flexible walls and whose volume depends on the relative position of the walls, and a duct means which forms a connection between said compartment and the surroundings.
- A container of the type described by way of introduction is known from e.g. WO 9941155. The container described therein is of a collapsible type and comprises three walls, viz. two opposite side walls and a bottom wall. The walls which are made of a plastic material are flexible and interconnected to form a compartment whose volume depends on the relative position of the walls. The container has a duct means which either may consist of a tubular piece introduced between the side walls or is formed integrally with the side walls.
- A frequent problem associated with this type of container relates to the provision of durable reseal-ability of the container, i.e. to ensure that it remains sealed for a reasonable period when stored, for instance, in a refrigerator. The container is opened, for example, by cutting open the duct means, after which the liquid product held in the container can be poured. However, it is desirable to be able to durably reseal the duct means since the product may otherwise be affected by the ambient air. This durable resealability is achieved with the aid of openable and closable connecting means, such as a screw cap, which are connected to the duct means, or with the aid of pinching means applied over the duct means.
- These methods of providing durable resealability of a container, however, are complicated. There is thus a need for a container which allows easier durable resealing.
- A first object of the present invention thus is to provide an improved container of the type described by way of introduction.
- Another object is to provide such a container allowing improved durable resealability.
- According to the present invention, these objects are achieved by a container having the features stated in
claim 1. Preferred embodiments of the inventive container are evident from claims 2-13 which are dependent onclaim 1. - More specifically, according to the present invention a container for liquid contents is provided, comprising a compartment which is defined by flexible walls and whose volume depends on the relative position of the walls, a flexible duct means which forms a connection between said compartment and the surroundings, the duct means being bringable to an open state and to a closed state, and the compartment having a bottom region, in which the liquid contents are essentially collected as the container assumes an upright position, said container being characterised in that said walls, by being actuated by said contents when collected in said bottom region, are adapted to assume a relative position acting for an increase in volume of the compartment, which increase in volume is counteracted by a negative pressure generated in the compartment, said duct means is adapted to be brought to said closed state in response to the negative pressure generated in the compartment, and said duct means is extended from the compartment at an angle to a longitudinal axis of the container.
- This results in a durably self-sealing container. The container comprises walls which, by being actuated by the liquid contents, may assume different positions affecting the volume of the compartment. It will be ensured that the walls assume a position acting for an increase in volume of the compartment as the container assumes an upright position. Thus a negative pressure is generated in the compartment, said negative pressure counteracting the increase in volume and besides causing the duct means to be closed. The extent of the duct means from the compartment at an angle to a longitudinal axis of the container prevents the pressure which the contents exert on the side walls of the container from propagating to the duct means.
- When handling the inventive container, the duct means will thus be closed when a pouring motion is terminated and the container is made to assume its upright position once more. Thus the need for mechanical durable sealing measures in the form of e.g. screw caps or clips is eliminated.
- According to a preferred embodiment, the inventive container comprises two opposite side walls which are joined along a common connecting portion and which in a non-actuated state strive to abut flush with each other. Preferably the duct means is formed integrally with said side walls and is advantageously formed of two projecting wall portions, abutting flush with each other, of the side walls, said wall portions being joined with each other along their edges.
- According to another preferred embodiment of the present invention, the duct means has inner surfaces which face each other and are made to abut each other in a sealing manner when the duct means is closed in response to the negative pressure generated in the compartment. Said surfaces advantageously have a high degree of flatness, which contributes to ensuring an air-tight durable seal of the duct means in response to a negative pressure generated in the compartment.
- The container is preferably made of a material containing a filler of mineral material and a binder of polyolefin material. The filler is advantageously chalk (calcium carbonate).
- According to yet another preferred embodiment of the present invention, a carrying means is arranged on a first side of the container. The carrying means is advantageously arranged in said connecting portion.
- According to another preferred embodiment of the present invention, the duct means is arranged in an outlet area located on a second side of the container and at a distance from said bottom region. Said second side is advantageously opposite to said first side.
- According to one more preferred embodiment of the present invention, the duct means extends perpendicular to a longitudinal axis of the container.
- The duct means is preferably sealed in an unopened state of the container and is openable by cutting or like operation.
- Preferred embodiments of the present invention will now be described by way of example with reference to the accompanying drawings.
- FIGS. 1a and 1 b are perspective views of a preferred embodiment of an inventive container in a filled and non-opened state.
- FIG. 2 is a top plan view of the container shown in FIGS. 1a and 1 b, some parts being removed to illustrate the construction of the container.
- FIGS. 3a and 3 b are perspective views of the container shown in FIGS. 1a and 1 bin a filled and opened state.
- FIG. 4 is a cross-sectional view along line A-A in FIG. 3a.
- FIG. 5 is a perspective view of the container shown in FIGS. 3a and 3 b during a pouring motion.
- FIG. 6 is a cross-sectional view along line B-B in FIG. 5.
- FIGS. 7a-7 c are perspective views showing the handling of the container shown in FIGS. 3a and 3 b for pouring some of the contents held in the container.
- FIG. 8 is a top plan view of a second embodiment of an inventive container with a duct means extended from the compartment at an acute angle to a longitudinal axis of the container.
- FIGS. 1a and 1 b, to which reference is now made, illustrate a preferred embodiment of an
inventive container 1 in an unopened state and filled with liquid contents. Thecontainer 1 is particularly suitable for liquid food products such as milk, fruit juice, water or wine. - The
container 1 is of a collapsible type, i.e. compressible or foldable, and comprises to this end three flexible walls, two of which areopposite side walls 2 and one is abottom wall 3. - The
walls walls compartment 4 whose volume depends on the relative position of thewalls side walls 2 are joined by welding along a connectingportion 5. - The
flexible walls side walls 2 in a non-actuated state, which corresponds to the empty state of thecontainer 1, strive to abut flush with each other. If the walls contain a mineral-based filler, such as chalk, said rigidity is essentially obtained by means of the filler. When theinventive container 1 is filled with liquid contents, the contents will actuate thewalls compartment 4 defines a volume that is necessary to hold the contents. - The
container 1 is, as mentioned above, of a collapsing type, which means that the volume defined by thecompartment 4 decreases as thecontainer 1 is emptied of its contents. - A carrying means6 is arranged in the connecting
portion 5 at a first side of thecontainer 1 and comprises in the shown embodiment anopening area 8 with a first, essentiallyround opening 9 and a second, essentiallyelongate opening 10. As a result, the carrying means 6 forms ahandle 11 which makes it possible for a user to lift thecontainer 1 using four fingers, while at the same time a load-absorbingportion 12 is formed between theopenings handle 11 from being folded or deformed in some other way in the handling of thecontainer 1. The twoopenings handle 11 extend at an angle of about 25° to a vertical line through thecontainer 1. Tests have demonstrated that an angle in the range 20-30° results in good user-friendliness in the handling of thecontainer 1. - FIG. 2, to which reference is now also made, is a top plan view of the
container 1 illustrated in FIGS. 1a and 1 b, thenearest side wall 2 being removed. Now it is possible to see the inside of arear side wall 2, abottom wall 3 and the design of the connectingportion 5, along which the twoside walls 2 are connected with each other. In thebottom area 13 of thecontainer 1, theside walls 2 are connected with thebottom wall 3, on the one hand via a lower connectingportion 14 along which eachside wall 2 is connected with thebottom wall 3 and, on the other hand, via twolateral connecting portions 5 along which all threewalls compartment 4 of thecontainer 1 is thus defined by theside walls 2 and thebottom wall 3. The connectingportion 5forms boundary lines 16 facing thecompartment 4. - The
compartment 4 comprises abottom area 13 as mentioned above, acentral area 17 in which boundary lines 16, facing thecompartment 4, of the connectingportions 5 are parallel, and an upperarched area 18, in which theboundary lines 16 extend essentially arcuately towards each other, however, not in anoutlet area 19 at asecond side 20 of thecontainer 1, whichoutlet area 19 will be described in more detail below. This design makes it possible for thecontainer 1 to stand in a stable manner independently of the extent to which it is filled. - When the
container 1 assumes the upright position shown in FIG. 1, the major part of the liquid contents is collected in abottom region 21 of thecontainer 1, saidbottom region 1 being formed of thebottom area 13 and thecentral area 17. - The
inventive container 1 also has a duct means 22, which is arranged at a distance from thebottom region 21 in saidoutlet area 19. Thus the duct means 22 is arranged on thesecond side 20 of thecontainer 1, which is opposite to saidfirst side 7, on which the carrying means 6 is arranged. - The duct means22 is formed integrally with the
side walls 2. More specifically, the duct means 22 is formed of awall portion 23 of eachside wall 2. Eachwall portion 23 extends at an angle to a longitudinal axis of the container and thus forms a laterally extending projection of eachside wall 2, and thewall portions 23 are connected with each other along their lateral edges, which are thus included in said connectingportion 5. Theinterconnected wall portions 23 thus forms said duct means 22 which at afirst end 24 communicates with thecompartments 4 of thecontainer 1 and at asecond end 25 is sealed by said connectingportion 5. Since said wall portions, and thus also the duct means, extend from thecompartment 4 at an angle to a longitudinal axis of thecontainer 1, it is ensured that the pressure caused by the liquid contents and acting on the walls of the container is not propagated to the duct means. In the embodiment shown in FIG. 2, the duct means has an essentially perpendicular extent to said longitudinal axis. It is noteworthy that the duct means 22 consists of twowall portions 23, which are sealed along their edges and which are flexible and each have aninner surface 26, which inner surfaces in a state without actuation by said contents abut flush with each other. - To open the
inventive container 1, thesecond end 25 of the duct means 22 is removed by cutting or like operation. Of course, such cutting can be made to form an opening with an optional angle. A thus openedcontainer 1 is illustrated in FIGS. 3a and 3 b. - When the
inventive container 1 assumes said upright position, the liquid contents are thus collected essentially in thebottom region 21 of thecompartment 4, as illustrated in FIG. 4, which is a cross-sectional view of thecontainer 1 shown in FIG. 3a. It will be appreciated that it is possible for some of the contents to be held in thearched area 18 of thecontainer 1 when thecontainer 1 has not yet been emptied of its contents. The contents will act on theside walls 2 in thebottom region 21 to such an extent that the side walls are moved away from each other and consequently assume a relative position acting to increase the volume of the compartment. Thearched area 18 of thecompartment 4 will, however, not hold any contents—or, as mentioned above, only a small part of the contents—whereby theside walls 2 in this area strive to abut against each other, which in turn results in an increase in volume of thecompartment 4. However, the increase in volume is greater than the decrease in volume, which results in the forming of a negative pressure in thecompartment 4, which counteracts the increase in volume. - FIG. 5 shows an
inventive container 1 which is subjected to a pouring motion, and FIG. 6 is a cross-sectional view of thecontainer 1 illustrated in FIG. 5. Thecontainer 1 is moved from an upright position to a forwardly inclined position, and FIG. 6 shows how some of the contents has been brought to thearched area 18 of thecompartment 4, whereby the resulting increase in volume in thisarea 18 is to some extent compensated for by a decrease in volume in thebottom region 21. The relative change in volume is adjusted in such manner that the negative pressure prevailing in thecompartment 4 ceases. - FIGS. 7a-7 c illustrate how the above-described
inventive container 1 is handled for pouring liquid contents, such as milk, held in thecontainer 1. - FIG. 7a illustrates the opened
container 1 in an upright position on a base. The liquid contents are collected in saidbottom region 21. - FIG. 7b shows the
container 1 in a lifted state while performing a pouring motion, whereby some of the contents held in thecontainer 1 is brought from thebottom region 21 to thearched region 18 and the associatedoutlet area 19. The liquid contents will be passed to the duct means 22 and thereby exert a pressure which makes thewall portions 23 of the duct means 22 and theirinner surfaces 26 separate to allow pouring some of the contents into aglass 27. As some of the contents is moved from thebottom region 21 to thearched region 18 and theoutlet region 19, the pressure exerted by said contents on theside walls 2 in thebottom region 21 will decrease, thus making the side walls strive to be moved towards each other, resulting in a decrease in volume of thecompartment 4. This decrease in volume is relatively greater than the increase in volume taking place in saidarched area 18, which results in the negative pressure prevailing in the compartment ceasing. - Having completed the pouring motion, the contents will of course no longer exert any pressure on the wall portions of the duct means, the
inner surfaces 26 of the wall portions thus once more assuming the state in which they abut flush with each other. - In FIG. 7c the
container 1 has once more been brought to the upright position. The contents will again be collected in saidbottom region 21, which means that the contents will once more exert pressure on saidside walls 2, thus resulting in an increase in volume of thecompartment 4. - This increase in volume implies that a negative pressure counteracting the increase in volume is once more generated in the
compartment 4. This negative pressure contracts theside walls 2 in the part of thecompartment 4 that does not contain liquid contents, which part thus forms thearched area 18 of the container and may also comprise a greater or smaller part of the bottom region depending on the degree of filling of the container, and thus ensures that saidside walls 2 in said part of thecompartment 4 are retained in the state in which they abut each other. - The duct means22 is adapted to be closed in response to a negative pressure generated in the
compartment 4. In the embodiment shown, this means that theinner surfaces 26, abutting flush with each other, of thewall portions 23 of the duct means 22 will be pressed against one another and thus form an air-tight seal. The extent of the duct means at an angle to the longitudinal axis of the container ensures that the pressure exerted by the liquid contents on the walls of the container cannot be propagated to the duct means, which will thus not be subjected to pressure acting to open the same. As a result, a durable seal of thecontainer 1 is obtained, which prevents ambient air from entering thecompartment 4 of the container and affecting the contents thereof. - The
inventive container 1 is thus durably self-sealing, which means that the need for mechanical durable sealing measures, such as sealing by means of a cap or clip, is eliminated. - For repeated pouring of the contents, it is only necessary to lift the
container 1 and perform a repeated pouring motion, whereby the negative pressure ceases. The pressure exerted by the contents when performing a pouring motion then causes, as described above, a separation of thewall portions 23 of the duct means 22, thereby allowing once more the contents to be poured. - Practical experiments have demonstrated that the durable self-sealing capacity of the
container 1 is essentially independent of the degree of filling of the container. - The present invention thus concerns a durably self-sealing
container 1. More specifically, thecontainer 1 comprises a duct means 22 which is openable for example, by cutting. Moreover thecontainer 1 hasflexible walls container 1 are actuated by liquid contents held in thecontainer 1, in such manner that the volume of acompartment 4 defined by thewalls container 1 to an upright position. Said increase in volume results in generation of a negative pressure in thecompartment 4, which negative pressure counteracts the increase in volume and ensures that the open duct means 22 is sealed. The lateral extent of the duct means 22, i.e. the fact the duct means is extended at an angle to a longitudinal axis of the container, ensures that the pressure exerted by the contents on the walls of the container does not propagate to the duct means. As a result, a durable seal is ensured, which prevents air from entering thecompartment 4 of thecontainer 1 via the duct means 22 and affecting the contents thereof. - To ensure an air-tight sealing of the duct means22 in response to a negative pressure generated in the compartment, the
inner surfaces 26 of the duct means 22 have a high degree of flatness. - FIG. 8 shows another embodiment of a
container 1 according to the present invention with a duct means 22 extended from thecompartment 4 at an angle of less than 90° to a longitudinal axis of thecontainer 1. - It will be appreciated that the present invention is not restricted to the shown embodiment of the
inventive container 1; for instance, the duct means can be integrated in thecontainer 1, i.e. it does not have to project from thecontainer 1 but only from thecompartment 4. Several modifications and variations are thus feasible and the invention is consequently defined exclusively by the appended claims.
Claims (13)
1. A container for liquid contents, comprising a compartment (4) which is defined by flexible walls (2, 3) and whose volume depends on the relative position of the walls (2, 3), a flexible duct means (22) which forms a connection between said compartment (4) and the surroundings, the duct means being bringable to an open state and to a closed state, and the compartment (4) having a bottom region (21), in which the liquid contents are essentially collected as the container assumes an upright position,
characterised in that
said walls (2, 3), by being actuated by said contents when collected in said bottom region (21), are adapted to assume a relative position acting for an increase in volume of the compartment (4), which increase in volume is counteracted by a negative pressure generated in the compartment (4), and
said duct means (22) is adapted to be brought to said closed state in response to the negative pressure generated in the compartment (4), and
said duct means (22) is extended from the compartment at an angle to a longitudinal axis of the container.
2. The container as claimed in claim 1 , in which said walls (2, 3) comprise two opposite side walls (2) which are joined along a common connecting portion (5) and which in a non-actuated state strive to abut flush with each other.
3. The container as claimed in claim 2 , in which the duct means (2) is formed integrally with said side walls (2).
4. The container as claimed in claim 3 , in which the duct means (22) is formed of two projecting wall portions (23), abutting flush with each other, of the side walls (2), said wall portions (23) being joined with each other along their edges.
5. The container as claimed in any one of the preceding claims, in which the duct means (22) has inner surfaces (26) which face each other and are made to abut each other in a sealing manner when the duct means (22) is closed in response to the negative pressure generated in the compartment (4).
6. The container as claimed in claim 5 , in which said surfaces (26) have a high degree of flatness.
7. The container as claimed in any one of the preceding claims, wherein the container is made of a material containing a filler of mineral material and a binder of polyolefin material.
8. The container as claimed in claim 7 , in which the mineral material is chalk (calcium carbonate).
9. The container as claimed in any one of the preceding claims, in which a carrying means (6) is arranged on a first side (7) of the container.
10. The container as claimed in claim 8 , when referring to any one of claims 2-4, in which the carrying means (6) is arranged in said connecting portion (5).
11. The container as claimed in any one of the preceding claims, in which the duct means (22) is arranged in an outlet area (19) located on a second (20) side of the container and at a distance from said bottom region (21).
12. The container as claimed in claim 11 , when referring to claim 9 or 10, in which said second side (20) is opposite to said first side (7).
13. The container as claimed in any one of the preceding claims, in which the duct means (22) is sealed in an unopened state of the container and is openable by cutting or like operation.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE0004597A SE517996C2 (en) | 2000-12-13 | 2000-12-13 | Packaging for liquid contents |
SE0004597-1 | 2000-12-13 | ||
PCT/SE2001/002740 WO2002047994A1 (en) | 2000-12-13 | 2001-12-12 | Container |
Publications (1)
Publication Number | Publication Date |
---|---|
US20040096127A1 true US20040096127A1 (en) | 2004-05-20 |
Family
ID=20282203
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/450,925 Abandoned US20040096127A1 (en) | 2000-12-13 | 2001-12-12 | Container |
Country Status (14)
Country | Link |
---|---|
US (1) | US20040096127A1 (en) |
EP (1) | EP1341702A1 (en) |
JP (1) | JP2004515423A (en) |
KR (1) | KR20030074655A (en) |
CN (1) | CN1230360C (en) |
AU (2) | AU2124902A (en) |
BR (1) | BR0116148A (en) |
CA (1) | CA2430855A1 (en) |
MX (1) | MXPA03005256A (en) |
PL (1) | PL361983A1 (en) |
RU (1) | RU2277062C2 (en) |
SE (1) | SE517996C2 (en) |
UA (1) | UA74860C2 (en) |
WO (1) | WO2002047994A1 (en) |
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US20050209531A1 (en) * | 2004-03-05 | 2005-09-22 | Rising Peter E | Liquid sampling apparatus and method of using same |
US20060034986A1 (en) * | 2004-08-13 | 2006-02-16 | Hynes Kenneth A | Food container and method |
US20060182370A1 (en) * | 2003-04-01 | 2006-08-17 | Eric Risgalla | Flexible liquid container |
US20090180716A1 (en) * | 2007-10-31 | 2009-07-16 | Mark Steele | Package handle |
US20100054634A1 (en) * | 2008-08-28 | 2010-03-04 | Michael Ray Runyon | Two-handled bag |
US20100329591A1 (en) * | 2009-06-29 | 2010-12-30 | Daiwa Gravure Co., Ltd. | Liquid storage bag |
US20110170804A1 (en) * | 2010-01-13 | 2011-07-14 | Marc Mamiye | Slide dispensing sealed pouch |
US20120085782A1 (en) * | 2009-06-26 | 2012-04-12 | System Communications, Inc. | Holder for flexible pouch container |
WO2012071391A1 (en) | 2010-11-24 | 2012-05-31 | Method Products, Inc. | Refill bag |
US8336495B1 (en) | 2009-09-08 | 2012-12-25 | Dumm Richard H | Flexible heat treatment and storage bag |
US20140116905A1 (en) * | 2012-11-01 | 2014-05-01 | Timur Yildiz | Stand-Up Packaging Apparatus for a Shirt |
FR3011825A1 (en) * | 2013-10-11 | 2015-04-17 | Oreal | MULTIPLE CLOSURE ELEMENT FOR A CONTAINER RECEIVING A COSMETIC PRODUCT |
US20150122842A1 (en) * | 2013-11-06 | 2015-05-07 | The Procter & Gamble Company | Containers having a product volume and a stand-off structure coupled thereto |
USD762015S1 (en) * | 2015-04-17 | 2016-07-19 | Bark Pouch LLC | Animal treat dispensing container |
US9896253B2 (en) | 2015-04-10 | 2018-02-20 | The Procter & Gamble Company | Flexible containers with reinforcing seals |
US20180201418A1 (en) * | 2004-02-19 | 2018-07-19 | Pinar Holdings Llc | Easy-to-use container |
US10779507B2 (en) | 2014-04-21 | 2020-09-22 | Bark Pouch LLC | Pet treat dispensing container with cap fastener |
USD927297S1 (en) | 2020-11-24 | 2021-08-10 | Stasher, Inc. | Container |
USD996978S1 (en) | 2021-10-01 | 2023-08-29 | Stasher, Inc. | Container |
USD1011927S1 (en) | 2021-10-01 | 2024-01-23 | Stasher, Inc. | Container |
USD1011926S1 (en) | 2021-10-01 | 2024-01-23 | Stasher, Inc. | Container |
USD1012727S1 (en) | 2021-10-01 | 2024-01-30 | Stasher, Inc. | Container |
USD1030472S1 (en) | 2022-11-17 | 2024-06-11 | Stasher, Inc. | Container |
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JP4545187B2 (en) * | 2007-11-30 | 2010-09-15 | 株式会社悠心 | Method for producing liquid dispensing nozzle for food and beverage packaging bag |
EP2277784B1 (en) * | 2008-05-21 | 2012-08-15 | Kao Corporation | Bag container |
KR101375043B1 (en) | 2009-06-25 | 2014-03-14 | 가부시키가이샤 유신 | Free-standing liquid packaging pouch with a flat film valve |
JP5445747B2 (en) * | 2009-06-25 | 2014-03-19 | 株式会社悠心 | Free-standing liquid packaging bag with flat film valve |
CN105620885A (en) * | 2016-03-16 | 2016-06-01 | 李克勤 | Packaging bag |
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Cited By (34)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20100008602A1 (en) * | 2003-01-04 | 2010-01-14 | Pakerman S.A. | Flexible Liquid Container |
US20060182370A1 (en) * | 2003-04-01 | 2006-08-17 | Eric Risgalla | Flexible liquid container |
US7658542B2 (en) * | 2003-04-01 | 2010-02-09 | Pakerman S.A. | Flexible liquid container |
US20180201418A1 (en) * | 2004-02-19 | 2018-07-19 | Pinar Holdings Llc | Easy-to-use container |
US20050209531A1 (en) * | 2004-03-05 | 2005-09-22 | Rising Peter E | Liquid sampling apparatus and method of using same |
US20060034986A1 (en) * | 2004-08-13 | 2006-02-16 | Hynes Kenneth A | Food container and method |
US20090180716A1 (en) * | 2007-10-31 | 2009-07-16 | Mark Steele | Package handle |
US20100054634A1 (en) * | 2008-08-28 | 2010-03-04 | Michael Ray Runyon | Two-handled bag |
US8794833B2 (en) | 2008-08-28 | 2014-08-05 | North American Salt Company | Two-handled bag |
US20120085782A1 (en) * | 2009-06-26 | 2012-04-12 | System Communications, Inc. | Holder for flexible pouch container |
US20100329591A1 (en) * | 2009-06-29 | 2010-12-30 | Daiwa Gravure Co., Ltd. | Liquid storage bag |
US8336495B1 (en) | 2009-09-08 | 2012-12-25 | Dumm Richard H | Flexible heat treatment and storage bag |
US8490577B1 (en) | 2009-09-08 | 2013-07-23 | Richard H. Dumm | Feeding method using a flexible heat treatment and storage bag |
US20110170804A1 (en) * | 2010-01-13 | 2011-07-14 | Marc Mamiye | Slide dispensing sealed pouch |
US8910834B2 (en) | 2010-11-24 | 2014-12-16 | Method Products, Pbc | Flexible container having a grip |
WO2012071391A1 (en) | 2010-11-24 | 2012-05-31 | Method Products, Inc. | Refill bag |
CN103354796A (en) * | 2010-11-24 | 2013-10-16 | 麦思德产品公司 | Refill bag |
EP2643235B1 (en) | 2010-11-24 | 2019-01-09 | Method Products, PBC | Refill bag |
US9321582B2 (en) * | 2012-11-01 | 2016-04-26 | Timur Yildiz | Stand-up packaging apparatus for a shirt |
US20140116905A1 (en) * | 2012-11-01 | 2014-05-01 | Timur Yildiz | Stand-Up Packaging Apparatus for a Shirt |
FR3011825A1 (en) * | 2013-10-11 | 2015-04-17 | Oreal | MULTIPLE CLOSURE ELEMENT FOR A CONTAINER RECEIVING A COSMETIC PRODUCT |
US20150122842A1 (en) * | 2013-11-06 | 2015-05-07 | The Procter & Gamble Company | Containers having a product volume and a stand-off structure coupled thereto |
US10779507B2 (en) | 2014-04-21 | 2020-09-22 | Bark Pouch LLC | Pet treat dispensing container with cap fastener |
US9896253B2 (en) | 2015-04-10 | 2018-02-20 | The Procter & Gamble Company | Flexible containers with reinforcing seals |
USD762015S1 (en) * | 2015-04-17 | 2016-07-19 | Bark Pouch LLC | Animal treat dispensing container |
USD927297S1 (en) | 2020-11-24 | 2021-08-10 | Stasher, Inc. | Container |
USD994483S1 (en) | 2020-11-24 | 2023-08-08 | Stasher, Inc. | Container |
USD996978S1 (en) | 2021-10-01 | 2023-08-29 | Stasher, Inc. | Container |
USD1011927S1 (en) | 2021-10-01 | 2024-01-23 | Stasher, Inc. | Container |
USD1011926S1 (en) | 2021-10-01 | 2024-01-23 | Stasher, Inc. | Container |
USD1012727S1 (en) | 2021-10-01 | 2024-01-30 | Stasher, Inc. | Container |
USD1044516S1 (en) | 2021-10-01 | 2024-10-01 | Stasher, Inc. | Container |
USD1044515S1 (en) | 2021-10-01 | 2024-10-01 | Stasher, Inc. | Container |
USD1030472S1 (en) | 2022-11-17 | 2024-06-11 | Stasher, Inc. | Container |
Also Published As
Publication number | Publication date |
---|---|
PL361983A1 (en) | 2004-10-18 |
KR20030074655A (en) | 2003-09-19 |
UA74860C2 (en) | 2006-02-15 |
BR0116148A (en) | 2003-10-21 |
SE0004597L (en) | 2002-06-14 |
EP1341702A1 (en) | 2003-09-10 |
SE0004597D0 (en) | 2000-12-13 |
WO2002047994A1 (en) | 2002-06-20 |
MXPA03005256A (en) | 2003-09-25 |
CN1498182A (en) | 2004-05-19 |
AU2002221249B2 (en) | 2005-01-06 |
JP2004515423A (en) | 2004-05-27 |
CN1230360C (en) | 2005-12-07 |
AU2124902A (en) | 2002-06-24 |
CA2430855A1 (en) | 2002-06-20 |
RU2277062C2 (en) | 2006-05-27 |
SE517996C2 (en) | 2002-08-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: ECO LEAN RESEARCH & DEVELOPMENT A/S, DENMARK Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:ROSEN, AKE;REEL/FRAME:013874/0496 Effective date: 20030721 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |