Container with closing unit

Abstract

Container assembly for storing liquids, the container assembly comprising: a container with a neck provided with an outlet opening, in particular a bottle with a bottle neck or a preform thereof, wherein a first screw thread is formed on the outer circumference of the neck and near the outlet opening, and a closure unit with a flange, in particular a closure cap with a cylindrical flange, wherein a second screw thread is formed on the inner circumference of the flange, and wherein the second screw thread is configured to detachably screw the closure unit onto the container, wherein both the first screw thread of the container and the second screw thread of the closure unit are conical screw threads.

Description

[0001] CONTAINER WITH CLOSING UNIT

[0002] The present invention relates to a container assembly for storing liquids, the container assembly comprising a container with a neck provided with an outflow opening, as well as a closing unit with a flange, wherein the closing unit can be releasably screwed to the container.

[0003] A container can be a bottle, the outflow opening of which can be closed or opened as desired by means of a closing unit in the form of a cap. The bottle can be made, for example, of a plastic material such as PET and / or a biological plastic such as PEF. The container is intended for liquids such as water, lemonades and many other forms of liquids to be packaged. Many embodiments are known and have many corresponding properties such as closing units and "star" shaped bottoms to maintain the shape of the bottle when pressure builds up inside the bottle as a result of the presence of carbonated liquid. Most of the liquids stored in such containers, especially liquids used in the food industry, are more pleasant to consume when the temperature of the liquid is low, as the taste experience is often enhanced in cool or cold liquids. The current plastic bottles have a fairly long bottle neck (hereinafter also referred to as "neck") with a thread positioned thereon. For carbonated liquids, the thread on both the bottle and the cap often must be longer than is necessary for non-carbonated liquids to prevent the cap from rotating loose due to the pressure built up in the bottle. This means that relatively much plastic has to be processed in the cap and neck of the bottle, which is cost-increasing and harmful to the environment, and / or that drinking from the bottle sometimes creates a somewhat unpleasant situation for the user around the lips.

[0004] It is an object of the invention to provide a container assembly in which at least one of the aforementioned drawbacks of known containers is at least partially overcome.

[0005] According to a first aspect, a container assembly for storing liquids is provided, comprising:

[0006] - a container with a neck provided with an outflow opening, in particular a bottle with a bottle neck or a preform thereof, wherein a first thread is formed on the outer circumference of the neck and near the outflow opening;

[0007] - a closing unit with a flange, in particular a closing cap with a cylindrical flange, wherein a second thread is formed on the inner circumference of the flange and wherein the second thread is configured to releasably screw the closing unit to the container; wherein both the first thread of the container and the second thread of the closing unit are conical threads.

[0008] Due to the conical shape, the height of the closing unit (i.e., the length in axial direction through the bottle and the closing unit) can remain limited or even become smaller than with regular "straight" closing caps, and / or the amount of material (plastic) to be used can be reduced accordingly. In embodiments of the invention, the diameter of the first thread of the container gradually decreases in a direction towards the outflow opening. The decrease can be linear (wherein, for example, the outside of the neck of the container and / or the inside of the flange of the closing unit each form a substantially straight surface extending at a fixed conical angle relative to the axial direction of the container / closing unit). In other embodiments, the conical angle can vary over the axial height, for example when the shape of the neck of the container and / or the flange of the closing unit has a slightly convex shape in cross-section.

[0009] In embodiments of the invention, the first thread is formed on the outside of a cylindrical part of the neck and at least the outside of the relevant part of the neck (not necessarily also the inside, but this may be the case) has a tapered shape (viewed from the inside of the container in the direction of the outflow opening). Because the first thread is directly provided on the relevant part of the neck, the diameter of the first thread gradually decreases.

[0010] In embodiments of the invention, the closing unit has a closing wall with a cylindrical flange provided with a second thread, which is attached thereto or integrally formed therewith. The diameter of the second thread of the closing unit gradually decreases in a direction towards the closing wall. In certain embodiments, the second thread is formed on the inside of the cylindrical flange, wherein the inside of the flange (not necessarily also the outside of the flange, but this may be the case) has a tapered shape (viewed from the open ends of the closing unit in the direction of its closing wall). Because the second thread is directly provided on the relevant part of the inside of the cylindrical flange, the diameter of the first thread gradually decreases.

[0011] In embodiments of the invention, the length of the second thread is greater than the length of the first thread. This ensures that when opening the closing unit, there is more opportunity to equalize the high pressure inside the container (for example, when it is filled with carbonated liquid) with the outside world, to reduce the risk of the closing unit shooting off due to excessive pressure in the container and / or the risk of carbon dioxide escaping too quickly. In embodiments of the invention, the length of the second thread is between 10% and 20% greater than the length of the first thread. If both lengths fall within the stated ranges, a good balance is found between an adequate reduction of overpressure when opening the container on the one hand, and the realization of a compact closing unit (i.e., one with a small height) and a corresponding reduction in the amount of material from which the closing unit and container are manufactured on the other hand.

[0012] In embodiments of the invention, the length of the second thread is between 120 mm and 126 mm, for example between 123 mm and 124 mm, and / or the length of the first thread is between 109 mm and 115 mm, for example between 111 mm and 112 mm.

[0013] In embodiments of the invention, the container is made of a material with greater stiffness than the material of the closing unit. In embodiments of the invention, the first conical angle (01) of the container neck and the second conical angle (02) of the flange of the closing unit are between 3 and 10 degrees, preferably between 4 and 6 degrees, for example 5 degrees. This achieves a good balance between an adequate reduction of pressure when opening the closing unit on the one hand, and a simple manufacturing method on the other hand (if the angles were too large, more particularly if the second conical angle becomes too large, it cannot be easily manufactured in an injection molding machine).

[0014] In embodiments of the invention, the first and / or second thread is multi-start. In other embodiments, the thread is single-start. In the multi-start variant, multiple helical forms run over the circumference of the relevant part of the container and closing unit.

[0015] In embodiments of the invention, the combination of the first and second thread is selflocking.

[0016] In embodiments of the invention, the first and second threads are configured to make a turn of more degrees when closing than when opening the closing unit. For example, the container and closing unit may be configured such that the thread makes a turn of approximately 720 degrees when closing and a turn of 540 degrees when opening.

[0017] The invention also relates to the use of the container assembly, the container as such and / or the closing unit as such.

[0018] Further advantages, features and details of the invention follow from the subsequent description of some embodiments thereof. The description refers to the attached figures, which show:

[0019] Figure 1 a side view of an embodiment of a preform of a bottle;

[0020] Figure 2 the side view of Figure 1, with an indication of the first conical angle (01) of the container neck;

[0021] Figures 3A and 3B cross-sections through a part of a neck of a container with a closing unit, respectively in attached state and a released state;

[0022] Figure 4A a bottom view of an embodiment of the closing unit;

[0023] Figure 4B a top view of an embodiment of the container;

[0024] Figure 5 a cross-section through a container and closing unit, in attached state;

[0025] Figures 6A and 6B views of respectively a further embodiment of a closing unit and of an assembly comprising such a closing unit screwed onto a container;

[0026] Figure 7 a cross-section through an embodiment of an assembly according to the embodiment of Figures 1-6, with the closing unit in attached state; and

[0027] Figures 8 and 9 are schematic cross-sections respectively showing embodiments of the applied thread. Because in certain embodiments, the design of the container (in particular a bottle) uses a so-called specially designed self-locking thread, preferably in combination with specific material properties (more specifically a cap made of relatively flexible material and a container made of relatively stiff material), the neck of the container can be made shorter than with existing bottles. The specific thread has a conical action with a self-locking function so that the risk of the cap releasing due to pressure build-up within the container (e.g., if the container is filled with carbonated liquid) is much smaller or does not occur in practice. Also, the opening and closing rotation, when used with non-carbonated beverages, is many times shorter than with current closures. In certain embodiments, the opening and closing rotation is approximately 45 degrees. In the embodiments specifically intended for non-carbonated beverages, multi-start thread is preferably used, for example, 4-start thread (meaning that the cap can be started at four points in the neck's thread to tighten the cap). This also means that the cap does not need to be as high, and thus, just like with the bottle neck, saves material. The edge of the cap can be designed with ribs to maintain a good grip. The tamper-evident function can be simply implemented on the cap so that the seal is clearly tactile and visible.

[0028] In the embodiments specifically intended for carbonated beverages, a single-start thread can be used. For example, the container can be designed with a single-start thread (meaning that the cap can be started at one point in the neck's thread to tighten the cap). The thread therefore has a longer stroke for opening or closing compared to the 4-start design. This thread stroke is, for example, approximately 720 degrees, which amounts to two full turns. The opening stroke, however, is approximately 540 degrees when the cap is disengaged from the thread (which amounts to one and a half turns).

[0029] By using a conical thread, the coupling can be designed such that the disengagement of the closing unit from the container occurs at an earlier point during opening than with a regular thread. Thus, it can be ensured that the cap remains in the thread longer, allowing for more uniform carbon dioxide venting (pressure reduction, or even pressure equalization) to occur and sufficient pressure to be reduced before the cap releases from the bottle. To give an indication: in the neck of the container, the thread has a relatively small length, for example, a length of 112 mm, while in the cap, the length of the thread is greater, for example, a length of 124 mm (this measured without the pressure equalization recesses and openings (venting recesses / openings) in the thread that provide further improved pressure reduction).

[0030] The flange of the cap, in certain embodiments, forms a 90-degree angle, which creates more space when unscrewing the cap, thus allowing for easier venting compared to a regular thread.

[0031] The fact is that with a conical shape of the closing unit (cap) at the start (i.e., at the beginning of tightening), there is more (radial) space (i.e., clearance between the inside of the closing unit and the outside of the container neck), and as it is tightened further, it gets progressively less radial space and can ultimately sit tighter at the end point (depending on how hard the user tightens the closing unit) than with a regular neck / cap thread design. This provides an advantage that the closing unit (cap), with increasing pressure inside the container, is more resistant to unintentional releasing of the closing unit (cap), thereby forming an additional safety feature.

[0032] When unscrewing the closing unit, the opposite situation occurs: from a narrow, tight clearance between the two threads, the closing unit (cap) will gain a little more space with each rotation during unscrewing, thereby creating additional venting (pressure reduction).

[0033] A positioning rim is also provided on the neck, which serves to clamp the preform during the bottle production process, and then to form the preform into a bottle under heat and pressure in the mold. The special (self-locking or not) conical outward thread is positioned at the top of the bottle just above the rim that serves to hold the tamper-evident ring, which is attached to the cap by means of thin plastic films which are broken when the cap is unscrewed, so that it is visible that the bottle has not been opened after production.

[0034] Figure 1 shows a front view of (a preform of) a bottle 2 of an assembly 1 consisting of at least a bottle and a (closing) cap. The bottle 2 has a cylindrical neck 10 which is provided on the outside with external (first) thread 4 of the conical type. The neck 10 forms (at the top side) an outflow opening 18 (for dispensing the contents of the container and / or for filling the container 2). At a position below the first thread 4 (at least, in the position of the bottle 2 shown in Figure 1), a radially outward-pointing tamper-evident ring 6 is positioned. This ring is chamfered from the top and straight at the bottom (so that a flat side is formed at the bottom which extends radially transverse to the axial direction A (Figure 2)). The ring 6 ensures that a (not shown in Figure 1) ring-shaped tamper-evident band 11 is held in place, which is positioned in a space 7 just below the tamper-evident ring 6 before use, so that when the cap is unscrewed, the seal between the cap and the tamper-evident band is broken.

[0035] Furthermore, at some axial distance from the tamper-evident ring 6 (in the figure, at some distance below the tamper-evident ring), a so-called positioning ring 8 is provided. Between the tamper-evident ring 6 and the positioning ring 8, a space 7 is provided in which the ring-shaped tamper-evident band 11 (Figure 5) can be enclosed. This band 11 cannot come off the neck 10 after the seal is broken, as the flat side of the tamper-evident ring 6 acts as a barrier.

[0036] Below the space 7 for the tamper-evident band 11 (see Figure 5), the aforementioned positioning ring 8 is provided. This ring serves as a positioning stop for the preform / container during a so-called blowmold manufacturing process and / or during the subsequent filling process of the container (e.g., the bottle). The body of the preform of the container / bottle 2 is blown into the shape of the bottle by means of heating and compressed air in a preformed mold. Figure 2 corresponds to Figure 1. Furthermore, it is indicated that the neck 10 of the (preform of the) container 2 has a neck part 9 on which the first thread 4 is formed, which neck part 9 extends at a conical angle (01) with respect to the axial direction (A) of the bottle 2. This conical angle is, for example, between 3 and 9 degrees, for example, approximately 5 degrees.

[0037] Figures 1 and 2 further show that at fixed distances, distributed along the length of the thread 4 of the container 2, preferably at uniformly distributed circumferential positions, a number of (axial) recesses 12 are provided in the first thread 4. These recesses 12 are intended to provide a passage (together with corresponding recesses / openings in the thread 5 in the closing unit 3 to be described later) for gases (e.g., air, carbon dioxide) within the container 2 to allow the sometimes prevailing overpressure (e.g., carbon dioxide pressure) in the container to flow away faster.

[0038] Figures 3A and 3B show, in addition to the top side of the container 2 from the previous figures, also an embodiment of a closing unit 3 (also referred to as the "cap"). The closing unit 3 comprises a closing wall 17 with an attached or integrally formed more or less cylindrical flange 14. The flange 14 is provided on its outer surface with a (second) thread 5. The diameter of the flange 14 and thus of the second thread 5 provided on the flange of the closing unit 3 gradually decreases in a direction towards the closing wall 17. The diameter of the first thread 4 of the container 2 gradually decreases in a similar manner in a direction from the outflow opening 18.

[0039] Figures 3 A and 3B show the neck part 9 of the neck 10 of the bottle 2 and the flange part 14 (here also called the flange) of the cap 3 in respectively attached and released state. The figures further show that both the outer surface 15 of the neck part 9 (which is provided with first thread 4, not shown for clarity in the drawing), and the inner surface 16 of the flange part 14 which is provided with the second thread 5 of the cap 3 (wherein the thread is not shown for clarity in this drawing), are angled outwards relative to the axial direction (A) of the bottle 2. More specifically, the (first) conical angle (01) of the bottle 2 essentially corresponds to the (second) conical angle (02) of the cap 3.

[0040] As described earlier, conical thread 4 of the bottle 2 can have a length shorter than that of the thread in existing bottles. Due to the conical shape, a self-locking effect can also be achieved, so that the cap becomes tight (or rather, is tightened more) in practice, also with a relatively high pressure build-up from inside the bottle. Because the lengths of the threads 4, 5 of both the neck and the cap can be made shorter, the neck 10 can also be made shorter, so that the total height of the cap can be reduced, which results in significant material savings. An additional advantage is that due to the conical shape, the venting of carbon dioxide pressure is optimal because as the cap moves upwards, with each step of rotation, more radial clearance is created between the inner surface of the cap and the outer surface of the bottle, and thus more venting and / or faster venting occurs during rotation before the cap is disengaged from the thread. This prevents the cap from shooting off (a so-called "blow off"). Because the cap 3 also has a conical thread 5, an extra tight connection can be achieved when tightening the cap, and moreover, the cap can be made selflocking, so that it cannot accidentally come loose due to the high carbon dioxide pressure.

[0041] Figure 4A shows a view from below (in cross-section) of the inner space of the cap, containing the conical thread 5 and the interruptions 13 (also referred to as recesses, openings, "venting slots" or ventilation openings) in the thread 5.

[0042] Figure 4B shows a top view of the cap, with the recesses 13 positioned similarly to the aforementioned recesses 12 in the first thread 4. These ventilation openings are evenly distributed over the circumference of the flange part. In the specific embodiment shown, there are 10 recesses 13, each positioned at 36 degrees relative to each other. When unscrewing the cap, these recesses 13 align with corresponding circumferential positions as the recesses 12 in the other thread 4. In other words, the ventilation openings 13 then correspond to the ventilation openings of the thread in the neck, allowing for optimal yet dosed venting (pressure reduction) to be realized. In the specific embodiment shown in the Figures, the six recesses 12 in the thread 4 of the neck 10 of the (preform of) container 2 have a special circumferential position that corresponds to the interruptions (venting slots) of the cap, resulting in optimal yet dosed venting.

[0043] Figure 5 shows a cross-section of the cap 3, including the position of the conical thread 5. The inside of the cap is provided with seals, such as the inner flexible lip seal 19, which ensures optimal sealing on the inside of the neck 10 by firmly clamping against the inside of the wall of the neck of the (preform of the) bottle 2. The outer seal 20 provides sealing on the outside of the bottle wall. The small upper (annular) seal 21 is located in the upper part of the shaft formed by the other two seals 19, 20. The upper seal 21 provides sealing on the upper flat rim of the bottle neck. The aforementioned combination of seals forms a single unit, creating an essentially liquid- and pressure-tight unit. A thickening 22 is provided at a central position on the inside of the cap to provide rigidity for a filling point. The tamper-evident band 11 is positioned on the bottom side of the cap. This band is connected to the top of the cap by means of a break / tear line 23. When the cap is moved upwards (i.e., unscrewed), the seal is broken along the tear line 23, making it visible and palpable that the bottle has not been previously opened after the filling process.

[0044] Figures 6A and 6B show views of a further embodiment of a closing unit and of an assembly comprising a container and a closing unit, respectively. Figure 6A is a front view of the outside of the cap, in which "grip" ribs 24 are provided to generate a better grip. This is necessary because the height of the cap has decreased compared to a conventional cap. At the bottom of the cap, the break / tear line 23 is twisted of the tamper-evident band 11 is visible. As can be seen in Figure 6B, just below the tamper-evident band 11, the positioning ring 8 is visible on the body of the (preform of the) bottle 2.

[0045] Figure 7 shows a cross-section of the (preform of the) bottle 2 with a screwed-on cap 3. The inner lip seal 19 presses against the inside of the wall of the (preform of the) bottle 2 for sealing against liquid and carbon dioxide. The upper seal 20 presses against the flat top edge of the preform / neck / bottle when the cap is tightened. The outer seal 28 presses against the bottle when the cap is tightened. Together, these seals form an essentially liquid- and gas-tight unit.

[0046] The conical thread 4 of the preform 2 has a 2.0 tightening rotation (i.e., requires 2.0 turns to be tightened) and a 1.5 loosening rotation (i.e., requires 1.5 turns) before the cap is disengaged from the thread. The thread 5 of the cap has a greater length than the thread 4 of the neck 10 in order to delay disengagement when unscrewing the cap, thereby generating sufficient time for the carbon dioxide pressure to decrease sufficiently to prevent the cap from shooting off (so-called "blow off"). The positioning ring 8 is located just below the cap, above the tamper-evident ring 6. The preform of the bottle can be blown into a bottle in a preformed mold by means of heating and compressed air.

[0047] The invention also relates to a packaging in the form of a plastic (PET) bottle for various liquids, comprising: a specially shaped plastic packaging that requires significantly less material / weight to package / store liquids such as water, lemonades, and other liquids with and without carbon dioxide. The formed preform / bottle has a short neck with a specially developed self-locking conical thread with a short stroke, made of a hard material for non-carbonated liquids such as water, tea, milk, etc., since no pressure reduction is needed when opening these liquids. In the design for carbonated liquids, a longer stroke is formed in order to create time for the pressure to decrease sufficiently when unscrewing. The design for non-carbonated liquids has a self-locking conical thread with an opening stroke of 90 degrees, making opening and closing very easy. The design withstands the internal pressure of the bottle but does not generate sufficient venting upon opening. The short-stroke design has a four-start self-locking conical thread so that the cap can engage the thread at four different starting points.

[0048] In the embodiment for carbonated liquids, a 1 -start self-locking conical thread is used so that the cap can engage the thread at one starting point. In this embodiment, the thread may require a stroke of 720 degrees (2.0 turns) for closing and a stroke of 540 degrees (1.5 turns) for opening which again contributes to user-friendliness. In this embodiment, the length of the self-locking conical thread of both elements is different. More specifically, the thread length in the cap is greater (e.g., 123.54 mm) than the length of the thread of the neck (e.g., 111.91 mm). The length difference of the thread in the cap ensures that the cap remains engaged with the thread longer during opening, allowing sufficient time for pressure to decrease during opening to prevent the cap from shooting off (blow off). The combination of the material types used (e.g., a hard plastic such as PET for the neck of the bottle and a soft plastic for the cap such as HDPE) contributes to the very effective operation of the closure. Both self-locking conical threads 4,5 are, in the design for carbonated liquids, provided with interruptions (venting slots) which are located in a special position so that when the cap is unscrewed, the recesses 12, 13 or interruptions come to lie opposite each other at a certain degree each time, allowing the carbon dioxide gas to escape optimally yet dosed. The positions of these interruptions have a great influence on the optimal operation of the venting.

[0049] Figure 8 shows an embodiment of the thread of at least one of the closing unit and the container in cross-section, wherein the thread has at least a partially chamfered shape. Figure 9 shows a (preferred) embodiment in which the thread of at least one of the closing unit and the container has a rectangular shape in cross-section. In the latter case, the thread (due to its somewhat angular shape) has an (improved) self-locking action.

[0050] In embodiments of the invention, the pitch of thread 4 is different from the pitch of thread 5. In certain embodiments, both threads may not be parallel over their length, such that the aforementioned difference between the number of rotations for tightening and the number of rotations for loosening occurs. The combination of the conical thread together with the non-parallel length of the thread / pitch can ensure that gases (carbon dioxide) escape from the container 2 many times faster than with conventional threads, so that improved venting and / or a reduction in the risk of blow-off situations can occur.

[0051] When unscrewing the cap, the conical shape creates a larger space between the wall of the neck and the cap, allowing the pressure to escape more quickly.

[0052] List of reference numbers:

[0053] 1 - assembly

[0054] 2 = (preform of a) bottle

[0055] 3 - cap

[0056] 4 = first thread (on bottle 2)

[0057] 5 = second thread (on cap 3)

[0058] 6 = tamper-evident ring

[0059] 7 = space for tamper-evident band ring 6

[0060] 8 = positioning ring

[0061] 9 - neck part

[0062] 10 = neck

[0063] A = axial direction

[0064] 11 = tamper-evident band

[0065] 12 = recesses in first thread 4

[0066] 13 = recesses in second thread 5

[0067] 14 = flange (part)

[0068] 15 = outer surface

[0069] 16 = inner surface 17 = closing wall

[0070] 18 = outflow opening

[0071] 19 = inner lip seal

[0072] 20 = outer seal 21 = upper seal

[0073] 22 = thickening

[0074] 23 = break / tear line

[0075] 24 = grip" ribs

Claims

CLAIMS1. Container assembly for storing liquids, the container assembly comprising:- a container with a neck provided with an outflow opening, in particular a bottle with a bottle neck or a preform thereof, wherein first thread is formed on the outer circumference of the neck and near the outflow opening;- a closing unit with a flange, in particular a closing cap with a cylindrical flange, wherein second thread is formed on the inner circumference of the flange and wherein the second thread is configured to screw the closing unit releasably to the container; wherein both the first thread of the container and the second thread of the closing unit are conical threads; wherein the length of the second thread is greater than the length of the first thread, wherein the length of the second thread is preferably between 10% and 20% greater than the length of the first thread.

2. Container assembly according to claim 1, wherein the diameter of the first thread of the container gradually decreases in a direction towards the outflow opening.

3. Container assembly according to claim 1 or 2, wherein the closing unit comprises a closing wall with a cylindrical flange attached thereto or integrally formed therewith, having the second thread, wherein the diameter of the second thread of the closing unit gradually decreases in a direction towards the closing wall.

4. Container assembly according to claim 1 , wherein the length of the second thread is between 120 mm and 126 mm, for example between 123 mm and 124 mm, and / or the length of the first thread is between 109 mm and 115 mm, for example between 111 mm and 112 mm.

5. Container assembly according to any of the preceding claims, wherein the container is made of material with a greater stiffness than the material of the closing unit.

6. Container assembly according to any of the preceding claims, wherein the first cone angle (01) of the container neck and the second cone angle (02) of the flange of the closing unit is between 3 and 10 degrees, preferably between 4 and 6 degrees, for example 5 degrees.

7. Container assembly according to any of the preceding claims, wherein the first and / or second thread is multi-start.

8. Container assembly according to any of the preceding claims, wherein the first and second thread are self-locking.

9. Container assembly according to any of the preceding claims, wherein the first and second thread are configured to make a turn of more degrees when closing than when opening the closing unit.

10. Container assembly according to any of the preceding claims, wherein the container and closing unit are configured such that the thread makes a turn of approximately 720 degrees when closing and a turn of 540 degrees when opening.

11. Container assembly according to any of the preceding claims, wherein the thread of the closing unit and / or of the container is a single-start thread.

12. Container assembly according to any of the preceding claims, wherein the thread of at least one of the closing unit and the container has a rectangular shape in cross-section.

13. Use of a container assembly according to any of the preceding claims.

14. Container as defined in any of the claims 1-12 and / or a closing unit as defined in one of claims 1-12.

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