LU501653B1 - A vented multiple space container for packaging products, in particular food products such as fresh meat products - Google Patents

Abstract

A container (1) for packaging products (5), comprising a container body (2) with a product space (4) for accommodating a product and a receiving space (6) at least for receiving liquid (7), in particular liquid from the product, the container body (2) comprising and being integrally formed with partition means (8) that separate the product space (4) and the receiving space (6) from each other, which partition means (8) comprise at least one outlet opening (11) configured to at least discharge liquid (7) from the product space (4) to the receiving space (6), wherein the container is provided with at least one resistance element (12) extending into the receiving space (6), which resistance element (12) surrounds the outlet opening (11) in such a manner that the resistance element (12) prevents the transport of liquid (7) from the receiving space to the product space, characterized in that the partition means comprise one or more venting holes (50), configured to allow air exchange between the product space (4) and the receiving space (6) but prevent liquid exchange between the product space (4) and the receiving space (6).

Description

A vented multiple space container for packaging products, in particular food products such as fresh meat products LUS01653

Description

The invention relates to a multiple space container for packaging products, comprising a container body with a product space for accommodating a product and a receiving space at least for receiving liquid, in particular liquid from the product, the container body comprising and being integrally formed with partition means that separate the product space and the receiving space from each other, which partition means comprise at least one outlet opening configured to at least discharge liquid from the product space to the receiving space, wherein the container is provided with at least one resistance element extending into the receiving space, which resistance element surrounds the outlet opening in such a manner that the resistance element prevents the transport of liquid from the receiving space to the product space.

Such a container is known from e.g. WO2015/133898 and WO2021/177824 and are intended for providing pre-packaged portion packages for food products, such as perishable food products, which can exude a liquid, e.g. fresh and raw meat products, such as red meat, poultry, but also fish, cheese and the like. Such packages are generally available in supermarkets and the like.

The containers known in the art comprise a container body with a product space for accommodating a product therein and a receiving space at least for receiving liquid therein, wherein the container comprises partition means that separate the product space and the receiving space from each other. In a normal position of the container, the product space is at least in part positioned above the receiving space. In a packaged condition, the product is in that case at least partially located above the receiving space. The partition means comprise at least one outlet opening configured to at least discharge liquid from the product space to the receiving space. As a result, liquid can flow from the product space to the receiving space, at least in the normal position of the container. The partition means ensure that the product to be packaged is stored spaced from the liquid contained in the receiving space. As a result there is no contact between the liquid contained in the receiving space and the product to be stored, so that possible decay and bacterial growth are prevented. The container comprises at least one resistance element that extends into the receiving space, surrounding the outlet opening in such a manner that the resistance element prevents the transport of liquid from the receiving space to the product space. This is in particular the case in a position different from the normal position of the container, for example an inclined position in which the receiving space is positioned beside the product space, in particular an upside-down position of the container, in which, quite the opposite, the receiving space is positioned above the product space. In such a position of the container the resistance element forms a barrier to liquid, so that liquid cannot reach the outlet opening, or at least to a reduced extent. In this way liquid is prevented from flowing back from the receiving space to the product space via the outlet opening. The liquid IS Us01653 thus discharged in a reliable manner and kept separated from the product.

Such containers can be produced in a relatively inexpensive and simple manner as the assembly of container body and the partition means are being integrally formed. this means that the partition means form an integral unit with the container body, in particular with a circumferential wall of the container body. This makes it possible to produce the container body in a single step, for example by thermoforming, injection-moulding or another suitable technique.

The problem of the containers in the art is however that when the container comprises a food product in the product space and both the product space and receiving space being closed from the environment, any liquid exuded from the product appear to be blocked on or in the outlet opening. The problem cannot be solved by a simple enlargement of the outlet opening or creating more outlet openings, since this would facilitate the liquid to re-enter the product space.

It has now been found that the liquid becomes blocked on the outlet opening as a result of the air being present in the receiving pace not being able to escape from the said receiving space.

The invention has now provided a solution to the above problem in that the partition means comprise one or more venting holes, configured to allow air exchange between the product space and the receiving space but prevent liquid exchange between the product space and the receiving space.

By allowing the air to pass through the one or more venting holes from the receiving space to the product space, the receiving space is not further airtight and the exuded liquid can now pass the outlet opening without the passage being hampered by the air present in the receiving space.

In an attractive embodiment, the one or more venting holes have a diameter of 0.4 mm or less, preferably of 0.3 mm or less. Aqueous liquids, openings of 0.25 mm or less are preferred, even more preferred are openings of 0.2 mm or less. For liquids having less surface tension or a higher viscosity as compare to water, the larger sizes mentioned are sufficient for avoiding the said liquid to pass. With venting holes of the indicated sizes, air can pass, but the liquid, which is usually an aqueous liquid, cannot pass due to the surface tension of the liquid with the partition means material wherein the venting hole is made. The dimensions of the one or more venting holes are therefore preferably chosen such, that the surface tension of the liquid is too strong to allow passage through the said venting hole.

In one embodiment, the container body is thermoformed from a thermoplastic material. The container body and partition means can be made of e.g. PP (polypropylene) or any suitable thermoplastic material that can also be biodegradable. It is also conceivable that the container body is made of a APET (Amorphous Polyethylene Terephthalate / polyester). The above materials are very safe and hygienic materials for food products. The choice of this material (or these materials) provides an adequate protection of the packaged product until the date of expiry thereof. In addition, the materials have excellent transparency properties, which LU501653 contributes to the sales-stimulating aspect of the package.

The integral assembly can be formed in a simple, efficient and inexpensive manner by means of a thermoforming process.

The venting holes can be made by any known method in the art. However, in view of the small diameter of the holes, punching using needles may have the risk of breakage of the needle tip, that could remain in the container, which is undesired and may be a health risk for the consumer, and a liability risk for the manufacturer. Therefore, contactless cutting of the holes is preferred, such as obtained by laser cutting.

The venting holes are preferably arranged in the outer periphery of the partition means. As will be explained later, the one or more outlet openings are preferably configured in or around the centre of the partition means.

The receiving space can be configured such, that the liquid present therein is held more towards the centre of the space, allowing room for the one or more venting holes in the periphery of the partition means, without being blocked by liquid when air is to pass.

It is noted in this regard that the partition means according to the invention preferably keep the product space separated from the receiving space in such a manner that a liquid-tight separation between the product space and the receiving space is provided, wherein the transport of liquid is only possible via the outlet opening, or via further outlet openings. The partition means are in any case configured so that undesirable transport of liquid from the receiving space to the product space is to a large extent, if not completely prevented.

The skilled person will appreciate that the liquid that is discharged in the present invention is not limited to liquid from the food product, but that said liquid may also comprise other liquids, such as condensation or additives to the food products, for example, such as marinade or preservatives.

In one embodiment, a part of the partition means that faces the receiving space comprises the resistance element. The resistance element forms part of the partition means, which makes the container relatively easy to produce. Because the resistance element forms part of the partition means, the resistance element and the part of the partition means that faces the receiving space form a collecting reservoir for liquid, at least in an inclined position or an upside- down position of the container. Liquid cannot flow over the resistance element in the direction of the outlet opening in that case, so that the transport of liquid from the receiving space to the product space is prevented.

In a simple embodiment, the resistance element comprises a protrusion that extends toward the receiving space. Said protrusion can be formed in the partition means in a relatively simple manner.

In one embodiment, a recess is provided in the part of the partition means that faces the LU501653 product space so as to obtain a better discharge of liquid from the product. In this way liquid is kept apart from the product.

It is preferable in that regard if the protrusion that extends towards the receiving space corresponds to the recess in the product space. The recess thus at the same time forms the protrusion in the receiving space, as it were. Such an embodiment is compact and easy to produce.

If in one embodiment the outlet opening is provided in the recess, liquid from the product is carried to the receiving space in a simple manner via the recess and the outlet opening. If additionally the recess furthermore corresponds to the protrusion in the receiving space that forms the resistance element, as already described above, a very simple yet efficient embodiment of the container according to the present invention is obtained.

The protrusion preferably comprises a rolled rim surrounding the outlet opening. The term ‘surrounding’ here means that the rolled rim delimits the outlet opening. The rolled rim faces towards the receiving space, allowing the liquid to freely flow into the outlet opening, since the rim does not protrude toward the product space. The rolled rim configuration actually provides for a reverse funnel shape of the opening towards the receiving space, i.e. the opening widens while the liquid passes the outlet opening. It has been observed that this configuration overcomes the problem of the liquid remaining on the outlet opening, since the widening of the opening towards the receiving space forces the liquid to detach from the rim at least locally, as a result of which the liquid will fall in to the receiving space, since there is not sufficient interaction surface for the liquid to remain in the opening. In particular this feature in combination with the one or more venting holes improves the liquid passage to the receiving space significantly.

For optimal passage without hampering the resistance for backflow of the liquid into the product space, the outlet openings preferably have a diameter of 4 — 7 mm, more preferably of 5 - 6 mm. The rim preferably has a height of 0.1 — 10 mm, preferably 1 — 5 mm.

The rolled rim can e.g. be made by punching, stamping or die cutting. Preferably, the outlet opening is made by a sharp pin that pushes the material from the side of the partition means facing the product space towards to the receiving space. During the pushing of the material towards the receiving space, a supporting element can be present in the receiving space that engages with the pin. The supporting element can have a function of a mould for the rolled rim.

It was found that such a method of making an outlet opening does not result in any material to detach from the partition means, that would remain in the receiving space which is undesired.

It is preferable if the partition means comprise a partition or if the partition means are configured as a partition. In such an embodiment the partition can in particular have a substantially constant thickness. Such an embodiment is very easy to produce, making it possible to form the container and/or the partition means by means of a thermoforming and/or LU501653 an injection-moulding process.

In one embodiment, in order to further improve the separation between liquid and product, the part of the partition means that faces the product space defines a product support surface 5 for the product. Furthermore, there is no absolute need for an additional wall functioning as a product support, which makes it easier to produce the container according to the present invention.

The partition means may in that case comprise protrusions that extend toward the product space, with crests of said protrusions forming at least parts of the product support surface. The protrusions only support parts of the product, so that there are parts of the products which are not in contact with the partition means, and that in such a manner that said parts of the product are in contact with the atmosphere that prevails in the product space. This aspect of the protrusions can in principle be used with any container. According to one aspect, a container for packaging products is thus provided which comprises a container body with a product space for accommodating a product and a receiving space at least for receiving liquid, preferably from the product, wherein the container body comprises partition means that separate the product space and the receiving space from each other, which partition means comprise at least one outlet opening configured for at least discharging liquid from the product space to the receiving space, wherein the part of the partition means that faces the product space defines a product support surface for the product, wherein the partition means comprise protrusions that extend toward the product space, wherein crests of said protrusions form at least part of the product support surface.

In one embodiment, the protrusions that extend toward the product space form a ribbed structure, so that the outlet opening(s) will remain open and the liquid from the product can thus be discharged to the underlying receiving space without impediment. The packaged product is thus not in contact with the liquid exuded from the product. The ribbed structure also ensures that the packaged product will not rest on a flat bottom, so that a gas that may be present in the product space can flow around the packaged product, which leads to an extended storage life of the product.

A more optimum separation of liquid from the product is realised if the outlet opening is spaced from the product support surface, seen in a direction toward the receiving space. Liquid can in that case flow from the product to the outlet opening via the aforesaid recesses, which form gutter elements, for example, under the influence of the force of gravity.

To ensure an adequate operation of the container, in particular in order to prevent the backflow of liquid from the receiving space to the product space, it is preferable if the outlet opening is provided near a central part of the container body. The outlet opening is in particular only provided near a central part of the container body, and the partition means are free from one or more outlet openings near a circumferential wall of the container body, for example. As a result, it is ensured that the backflow of liquid from the receiving space to the public space is LU501653 prevented in all positions of the container, i.e. a normal position, an inclined position and even an upside-down position.

In an embodiment which provides an adequate discharge of liquid, the container comprises a multitude of outlet openings. Preferably, the openings of said multitude of outlet openings are substantially evenly spaced.

It is preferable in that regard if the openings of the multitude of openings lie in substantially the same plane. In this way an even discharge of liquid over the multitude of outlet openings becomes possible.

In a special embodiment, the openings of said multitude of outlet openings are arranged in an arcuate pattern, in particular a circular pattern.

In one embodiment, the receiving space is closed by a sealing element. In one embodiment, the sealing element is provided on a side of the container body remote from the partition means. The receiving space is thus at least partially bounded by the sealing element, the partition means and a circumferential wall of the container body.

In a very efficient embodiment, the sealing element is a sealing film. Said sealing film is very easy to provide on the container, for example on the container body, for which purpose an application surface for the sealing element is provided in the container body, preferably on an underside of the container. The sealing film is preferably affixed in such a manner as to provide a non-detachable seal, thus preventing undesirable opening of the receiving space.

Furthermore, it is preferable to use a relatively strong sealing film, thus preventing undesirable piercing of the sealing film and thus opening of the receiving space.

In an alternative embodiment, the container body comprises a bottom with a circumferential wall, wherein the sealing element is at least partially formed by the bottom of the container body. The partition means are in that case placed in the container body, in the innermost part of the circumferential wall thereof, and in such a manner that the receiving space is at least in part bounded by the circumferential wall, the bottom and the partition means. In an efficient embodiment, the partition means are provided in the form of an insert in the container body and preferably non-detachably connected thereto.

The circumferential wall of the container is formed integrally with the partition means and is for example formed by thermoforming or injection-moulding. Subsequently, a bottom side of the container, i.e. that part of the container which is configured to form the receiving space, can be closed by means of a sealing element, in particular a sealing film. In this way a container according to the present invention can be produced in a very efficient, simple and inexpensive manner.

To realise an adequate collection of liquid in the receiving space, the at least one outlet opening and the resistance element are spaced from the sealing element.

It is noted that according to the present invention there is no longer any need for unhygienic 501653 liquid-absorbing means, such as a liquid-absorbing layer of material. The product no longer needs to be in contact with such means. The product does not come into contact with the liquid contained in the receiving space, or at least only to a reduced extent. The receiving space can thus be free from liquid-absorbing means, in particular a liquid-absorbing layer of material. In one embodiment it is conceivable, however, to nevertheless provide the receiving space with absorbing means, such as an absorbing layer of material, so as to further reduce the risk of a backflow of liquid to the product space in this manner.

In packaged condition the container comprises a product contained in the product space, in particular a food product such as a fresh meat product, wherein the product space is closed by means of a further sealing element, in particular a further sealing film. The further sealing film may be configured in a manner which is known to the skilled person, wherein said sealing film can be opened by a user from a corner point of the package, for example.

According to one aspect, the invention provides a method for packaging products, in particular food products, such as fresh meat products, comprising the steps of: — providing a container according to the invention; — placing the product in the product space of the container; — closing the product space with the product placed therein, using a further sealing element.

Using the method according to the invention, a container in packaged condition is thus obtained, as described in the foregoing.

To realise a longer storage life, the method comprises the step of providing a modified atmosphere in the container body so as to thus at least obtain a reduced oxygen concentration in comparison with the atmosphere.

The step of providing a modified atmosphere is in particular carried out so as to obtain an increased nitrogen concentration in comparison with the atmosphere.

The invention will now be explained in more detail with reference to a few exemplary embodiments in conjunction with the appended figures, in which:

Figures 1a and 2b are schematic cross-sectional views of an embodiment of a container according to the present invention in a normal position and in an upside-down position;

Figures 2a-2h are views of a container according to a the container of the present invention;

Figures 3a-3h are views of a container according to the container of figure 2;

Figures 4a and 4b are views of a container according to another embodiment of the container of the present invention;

Figure 5 shows the presence of air vents in a view of a container of the invention from above;

Figures 6a and 6b are schematic views of another embodiment of the container of the present invention;

Figure 7 is a schematic view of the container of figure 6 in an upside-down position;

Figure 8 is a schematic view of the embodiment of figure 7, on which a sealing element is LU501653 provided;

Figures 9a and 9b are schematic views of a section of the container of figure 6;

Figure 10 is a schematic side view of the container of figure 6;

Figure 11 is a schematic top plan view of another embodiment of the container of the present invention;

Figures 12a and 12b are schematic perspective views of the container of figure 11;

Figures 13a and 13b are schematic views of a section of the container of figure 11.

Figure 14 shows the steps in the preparation of an output opening in the partition means by apin and a supporting element.

Figure 15 shows a detail of a partition means before and after an outlet opening is made therein.

In the description of the figures below, identical or similar parts will consistently be indicated by the same numerals. In spite of the fact that the same numerals are used, there may be differences between the various embodiments, which will become clear upon reading the description below.

For a clear understanding of the invention, reference is first made to figures 1a and 1b.

These figures show a schematic sectional view of an embodiment of a container 1 according to the invention in a normal position (figure 1a) and in an upside-down (in comparison with the normal position) position (figure 1b). Reference is first made to figure 1a. The container 1 that is shown therein comprises a container body 2 made up of a few wall parts. At an upper side of the container body 2 a product space 4 is formed, in which a product 5, for example a piece of fresh meat 5, can be stored. At a bottom side of the container body 2, a receiving space 6 for liquid is formed, which space is configured to receive liquid from the product 5. The product space 4 and the receiving space 6 are separated from each other by partition means 8 in the form of a partition 16. The partition means 8, in this case the partition 16, form part of the container body 2. The partition means comprise venting holes 50 around the outer periphery thereof, i.e. the outer wall of the container body. The partition means are designed so that the product 5 is retained in the product space 4 and will not come into contact with the receiving space 6, while the venting holes 50 do not allow passage of liquid from the receiving space 6 to the product space 4, as shown in figure 1b. In this case it is ensured that the product can be hygienically stored in the product space.

The receiving space 6 is closed on the bottom side by a sealing element 31, such that the receiving space is bounded on the bottom side and on the sides by the container body 2 and the sealing element 31.

The product space 4 is closed on the upper side by a further sealing element 32, for example in the form of a sealing film. In this way a closed space 4, 6 is formed in the container 1, in this case consisting of the product space 4 and the receiving space 6. The atmosphere in the closed space 4, 6 may be modified in a manner which is known per se, for example for LU501653 extending the storage life of the product.

A outlet opening 11 for liquid is present in the partition means 8. The outlet opening 11 is provided more or less centrally in the container 1 and is configured so that liquid, for example from the product 5 or in the form of condensation, can flow from the product space 4 to the receiving space 6, via the outlet opening 11, under the influence of the force of gravity. Opening 11 comprises a rejuvenating side wall protruding and extending toward the receiving space, funnelling the liquid towards the receiving space. It is also possible for the opening to have the side wall in as a rolling rim that would facilitate the passage of the liquid toward the receiving space even more.

To facilitate proper liquid flow, the partition 16 may be provided with recesses 14, such as gutters 14, which extend downward in the direction of the outlet opening 11, so that liquid can readily flow toward the outlet opening 11. The partition means 8 may further comprise a number of protrusions 19 (schematically indicated here), which extend upward, into the product space 4, and which are configured to at least partially form a product support surface 17, on which the product 5 is at least partially supported. By suitably configuring the protrusions 19, free space can be created at the bottom side of the product, which has an advantageous effect on the storage properties of the product 5.

Furthermore, a flow resistance element 12, also referred to as resistance element 12, is provided in the receiving space 6. In the example that is shown here, the resistance element 12 forms part of the partition means 8 and is a part of the partition 16. The flow resistance element 12 extends into the receiving space 6, surrounding the outlet opening 11. This enables the resistance element to prevent or at least reduce the flow of liquid 7 from the receiving space 6 to the product space 4, in particular in the upside-down position shown in figure 1b.

As shown in figure 1b, an internal liquid container for liquid 7 is formed in the receiving space 6, as it were, which liquid container has a bottom formed by the partition means 8, in this case specifically the partition 16, and which has walls formed by a part of the walls of the container body 2 and by the resistance element 12. The internal liquid container is disposed spaced from the outlet opening 11, so that liquid present in the internal liquid container cannot directly flow to the outlet opening 11. The resistance element 12 is arranged to surround the outlet opening 11. The internal container functions to ensure that the liquid 7 is retained within the receiving space 6 in the upside-down position of the container 1 and that the liquid cannot flow back to the product space 4 via the outlet opening 11, or at least much less easily. Further, the liquid cannot pass venting holes 50.

According to the present invention, the container 1 is thus provided with at least one resistance element 12 extending into the receiving space 6, which resistance element surrounds the outlet opening 11 in such a manner that it prevents the flow of liquid 7 from the receiving space to the product space. The resistance element 12 in particular forms walls of an internal container, which functions as such in an upside-down (in comparison with the normal LU501653 situation) position. The embodiment described above with reference to figures 1a and 1b is illustrative of the invention and many variants can be realised by the skilled person having read the above general description, which variants all fall within the scope of the protection sought.

Thus itis in general conceivable, for example, that the internal liquid container is made up only of the partition means, in which the resistance element is incorporated. A few variants and their advantages will be discussed hereinafter.

It is furthermore noted that for the sake of clarity figures 1a and 1b are not drawn to scale.

The product space 4 is thus shown to be relatively small in comparison with the receiving space 6. Similarly, the outlet opening 11 is shown to be relatively large. The figures to be described hereinafter will provide a better insight into the proportions between the various parts of the container 1 according to the present invention.

In figures 1a and 1b, the outlet opening is placed near a central part of the container body.

In this way a maximum protection against backflow is obtained in nearly all positions of the container (i.e. also a sloping position, or in other words, a position between the normal position and an upside-down position, for example a position of the container in which the product space is positioned laterally beside the receiving space). It is not necessary to place the outlet openings centrally, however; other positions are conceivable.

Figures 2a-2h are views of a first embodiment of the container 1 according to the present invention.

Figure 2a is a perspective top plan view of the container 1. The container 1 comprises a container body 2, in this case formed by a circumferential wall 2 consisting of a few wall parts.

In this way a product space 4 is formed in the container body 2. On the bottom side, the product space 4 is bounded by the partition means 8 in the form of a partition 16. The partition 16 is relatively flat on the side that faces the product space 4 and in this case forms the previously described product support surface 17 on which the product can be supported. The product can for that purpose be placed in the container 1 shown here, after which the upper side of the product space 4 is closed by means of a further sealing element (not shown), for example in the form of a sealing film, which can for example be affixed to a flanged edge 41 formed on the container body 2.

In the partition 16 a few outlet openings are provided - near the central part schematically indicated by the circle Ib - as will be explained hereinafter with reference to figure 2b. Drain gutters 14 in the form of recesses 14 in the partition 16 extend over the area of the partition 16 in the direction of the outlet openings in order to thus discharge liquid from the product space 4 ina simple and efficient manner.

On an outer side of the partition 16, a recess 43 extending in the circumferential direction is provided, which recess forms a ring channel for retaining liquid that is present near the walls of the container body 2.

Figure 2b shows the encircled part Ib of figure 2a in more detail. The drain gutters 14 are LU501653 shown more clearly here, which drain gutters extend to the outlet openings 11, three of which are fully shown in figure 2b, whilst in total six outlet openings are provided. The outlet openings 11 are provided in the drain gutters 14, at a relatively lowermost part thereof. The outlet openings 11 are arranged in a circular pattern, substantially evenly spaced and substantially in one plane.

In figure 2b the outlet openings 11 are surrounded by walls 12, which, as will become clearer with reference to figure 2h, form the resistance elements 12 that prevent the flow of liquid from the receiving space 6 to the product space 4.

Figure 2c is a top plan view of the container 1, showing the configuration of the product space 4 with the partition 16 that forms a product support surface 17, with drain gutters 14 and the central outlet openings 11 provided in a circular pattern.

Figure 2d is a bottom view of the container 1 showing the receiving space 4, which is closed by a sealing element 31 in the embodiment shown here, which sealing element closes the receiving space on the bottom side, therefore.

Figures 2e and 2f are side views of the container 1 with the container body 2, which show that the container is rectangular in shape.

Figure 2g is a cross-sectional view of the container 1 along the line X-X in figure 2e. This figure clearly shows that the product space 4 is relatively large and that the receiving space 6 is relatively smaller. This is possible because the amount of liquid which comes from meat products, for example, is relatively small, for example in the order of a few to a few dozen millilitres. The receiving space 6 may of course be dimensioned so that it will be capable of receiving and retaining the amount of liquid that is to be expected.

The partition means 8 in figure 2g comprise a partition 16 which slopes slightly upwards from a bottom part of the container and subsequently extends substantially parallel to the bottom formed by the sealing element 31. The receiving space 6 is thus bounded by the bottom 31 and the partition means 8 in the form of the partition 16, rather than in part by the walls of the container body 2, as is the case in figures 1a and 1b. In this way a ring channel 43 is formed at the edges of the container, between the bottom, the partition 16 and the walls of the container body 2, which ring channel is positioned lower than the product support surface 17, so that liquid is collected on the outer side as well. This liquid can flow back onto the product, however, which in principle is undesirable.

Figure 2h shows in detail the rectangular part of the bottom of the container 1 that is indicated by the letter Y in figure 2g. The figure shows a recess located spaced from the central part C, in this figure indicated by numeral 12, since this recess also forms the resistance element 12 in the receiving space 6. The resistance element 12 surrounds the outlet opening and extends into the receiving space 6 in the direction of the bottom 31 of the container 1. The outlet opening is not shown very clearly in this figure, since the sectional view concerns the part just before the outlet opening. An outlet opening 11 that is located a little further away is clearly 501653 visible, however; as shown, this outlet opening 11 is spaced from the sealing element 31 by some distance, such that liquid can flow from the product space 4 to the receiving space 6 in a proper manner. As already mentioned before, drain gutters 14 are for that purpose provided in the partition 16 on the side of the product space 4, a wall of which drain gutters on the side of the receiving space form a flow resistance, as is clearly shown here.

A resistance element 12 is provided for every opening 11, which resistance elements are each configured and located so that they reduce and even prevent the flow of liquid from the receiving space 6 to the product space, at least in an upside-down position of the container (in which position the receiving space 6 is located above the product space 4).

Figures 3a-3h show an alternative embodiment of the container 1 according to the present invention. The container is practically identical to the container described with reference to figures 2a-2h; for a description of the individual figures 3a-3h reference is made to the description of those figures. The main differences will be explained below.

In figure 3a, the ring channel 43 of figure 2a has been exchanged for only a few recesses 47, which no longer extend along the entire circumference. Because of this, the partition means 8 in the form of the partition 16 are no longer provided as elevations on the bottom, but they are in contact with the walls of the container body 2. Such a container is relatively easy to produce, as will be explained hereinafter.

Figure 3h furthermore shows the container, which is not provided with the sealing element yet. In this figure, too, the resistance elements 12 are shown again, which resistance elements form sheet pile walls of the internal container that retains liquid within the receiving space in an upside-down position of the container in that the resistance elements extend into the receiving space, surrounding the outlet openings 11. The resistance elements extend up to a point slightly lower than the outlet openings, so that there is some distance therebetween and liquid can readily flow into the receiving space. In the embodiment shown here, the receiving space is closed by means of a sealing element in the form of a sealing film, which can be affixed to the container body near the edges 47 and which extends over the bottom side of the container and may be in contact with the lower parts of the resistance elements. This makes it readily possible to form the receiving space 6, using a sealing film, whilst the outlet openings 11 cannot undesirably be closed. The container body shown in figures 3a-3h, without the sealing film 31 and the further sealing film, is easy to produce, for example by thermoforming and/or injection moulding. Because of these aspects this embodiment is relatively easy to produce and that at low cost.

Figures 4a and 4b show another embodiment of the container 1 according to the present invention. The container is substantially similar to the container shown in figures 2 and 3. The main differences will be explained below.

Figure 4a shows that the bottom of the product space 4, which is made up of the partition LU501653 means 8 in the form of the partition 16, exhibits a double curvature, i.e. the centre, indicated by a circle C here, is located lower than a part of the partition closer to the walls of the container body 2. As a result, an adequate discharge of liquid to the outlet openings 11 located near the centre C is obtained. Ribs 19 are provided on the partition, crests of which ribs form a product support surface for the product 5. The addition of ribs results in an improved contact of the product with the atmosphere prevailing inside the container 1, so that there is a good contact between the product and a preserving agent, such as nitrogen gas, for example, that is provided in the container. Drain gutters 14 are furthermore provided in the partition 16, as already described before.

Figure 4b clearly shows how the ribs 19 and the drain gutters 14 extend radially from the central part of the partition means 8.

The container shown in figures 4a and 4b may be provided with a sealing element, preferably in the form of a sealing film, on the bottom side for forming a receiving space on said bottom side, as already described with reference to figure 3.

Figure 5 shows a container as described in WO2021/177824 from above, comprising venting holes 50.

Figures 6a and 6b schematically show in perspective view (figure 6a) and detail view (figure 6b) a sixth embodiment of the container 1 according to the present invention. The container 1 shown in figures 6-9 is essentially identical to the container 1 of figure 4. The main differences will be explained below.

Figure 6a shows a multitude of outlet openings 11 in the partition means 8, which extend through the partition 16 toward the receiving space 6 located therebehind (not very well visible in this figure) for draining liquid thereto. The first difference between figure 6a and figure 4a is the recess 14. Whereas in figure 4a said recess 14 is provided as a downwardly extending gutter 14, in figure 6a the partition 16 is pyramidally curved such that liquid is discharged over the continuously downwardly extending partition 16 toward the outlet openings 11. The partition 16 consists of a multitude of adjoining funnel elements 14', as it were, with an outlet opening 11 in the central part of each final element 14'. In figure 6a the partition 16 is shown to be divided into a multitude of funnel elements 14' corresponding to the multitude of outlet openings 11. In order to form a substantially flat (i.e. horizontal in use) product support surface 17, the protrusions 19 are conical in shape in figure 6a. Each protrusion 19 in a funnel element 14' in figure 6a narrows in radial direction from the outlet opening 11. By using essentially the entire area of the partition 16 as a recess 14, a quick and effective discharge of liquid from the product

Bis realised.

The fact that the product 5 in the container 1 is supported by the protrusions 19 prevents the outlet openings 11 from being enclosed by the product 5. Liquid from the product 5 can thus be discharged without impediment to the underlying receiving space 6. The packaged product 5 is thus not in contact with the liquid from the product 5, which has a positive effect as regards LU501653 hygiene and the storage life of the product 5.

Another advantage of the protrusions 19 of this embodiment in particular, and of all embodiments in general, is that they form a relatively small contact area with the product 5. In the prior art containers known so far, the entire underside of the products is generally in contact with the product support surface. In the container 1 according to the present invention, the product support surface 17 is formed by the protrusions 19 and thus has an interrupted aspect, so that a relatively large part of the underside of the product 5 is freely accessible to the gas mixture present in the container 1. Because this gas mixture can move around the package product 5, the preserving action thereof is enhanced. The development of bacteria is thus prevented in an effective manner. It is noted in that regard that although elongate protrusions 19 are shown in figure 6a, other relief structures can also be used in a container according to the present invention.

Finally, figure 6a is different from figure 4a in that a ring channel 43 is provided instead of a gutter 49. Said ring channel 43 is essentially identical to the ring channel of figure 2a.

Figure 6b shows a larger-scale view of the side of the partition 16 that faces the receiving space 6. Figure 6b thus shows the bottom side of the container 1 that is shown in figure 6a.

Figure 6b illustrates the tapered nature of the protrusions 19. As figure 6b shows, protrusions 19 that extend over several funnel elements 14' are tapered at both ends. Because figure 6b shows the container 1 from the bottom side, the partition 16 is curved so that in the situation shown in figure 6b the outlet opening 11 is located at the highest point of the partition 16. In the position of use, liquid from the product can readily flow to the outlet opening 11, therefore, because the outlet opening will be located at the lowest point in that situation. In an upside-down position, on the contrary, liquid is prevented from flowing back to the product space.

Figure 7 is a schematic view of the sixth embodiment of the container 1 according to the present invention of figure 6 in upside-down position. The embodiment shown in figure 7 essentially corresponds to the embodiment of figure 4, with the above-mentioned differences.

The upside-down position of the container 1 in figure 7 shows the structure of the partition 16 as discussed with reference to figure 6b. Figure 7 in particular illustrates the course of the ring channel 43 which, in use, also forms the contact surface of the container 1 with a bottom surface. The bottom surface of the ring channel 43 of figure 7 is located higher than the partition 16. On its inner side (i.e. on the side of the partition 16) the ring channel 43 has a stepped configuration, so that an additional edge for affixing the sealing element 31 thereto is formed (see also figure 8). As a result of this stepped construction, the sealing element 31 is spaced, in use, from the bottom surface on which the container 1 is placed.

Figure 7 also shows that the shape of the container body 2 with the partition means 16 is such that it can be formed as an integral unit by thermoforming, for example from PP-based or

APET-based materials. Other production methods and materials are also conceivable within the 501653 scope of the present invention.

Figure 8 is a schematic view of the sixth embodiment of figure 7, with a sealing element 31 provided thereon. The receiving space 6 in figure 7 is defined by the ring channel 43 and the partition 16. Figure 8 shows that the receiving space 6 is closed by the sealing element 31. The structure of the sealing element 31 is adapted to the choice of the material of the container body 2. Preferably, the materials of the container body 2 and the sealing element 31 are selected so that there is compatibility between the outer side of the container body 2 and the sealing element 31 where the latter is affixed to the container body 2. Preferably, a molecular fusion during the sealing process ensures the permanent integrity of the seal by the sealing element 31. Furthermore, the perforation resistance of the sealing element 31 is equal to or higher than that of the further sealing element 32. The sealing element 31 preferably guarantees barrier properties equal to or higher than the thinnest part of the, preferably thermoformed, container body 2. The choice of materials thus guarantees a perfect protection of the packaged product 5 until the date of expiry thereof.

Figures 9a and 9b are schematic views of a section of the sixth embodiment of the container 1 of the present invention shown in figures 6-8. Figures 9a and 9b essentially correspond to figures 3g and 3h, but are different therefrom as regards the aforementioned points. Figures 9a and 9b show how the curvature of the partition 16 extends, so that two adjoining funnel elements 14' are formed. Each funnel element 14' is curved so that the lowest point thereof terminates in the outlet opening 11. In addition to that, figures 9a and 9b show in side view the tapered nature of the protrusions 19.

Figure 10 is a schematic side view of the sixth embodiment of the container 1 according to the present invention. In this view the further sealing element 31 in the form of an upper film 32 is affixed to the flanged edge 41. The provision of the sealing element 31 and the further sealing element 32 on the container body 2 makes it possible to confine a product 5 in a protective atmosphere within the container 1. The container 1 is preferably used in combination with a protective atmosphere (gas flushing), in particular in the case of meat or fish products (fresh meat and fish), as known to the skilled person.

Figure 10, like the other figures, demonstrates also the strong similarity between the container 1 and the generally known meat trays. The container 1 is formed so that in the case of a container 1 according to the present invention the packaging process does not require any adaptations on the part of the producer of fresh meat/fresh fish products, whilst any adaptations as regards consumer behaviour are not necessary, either. The handling of the container 1 at a fresh meat or fresh fish packaging company can be carried out with the already existing infrastructure. In other words: the introduction of the container 1 does not require an investment from the producer. In addition to that, the similarities between the container 1 and the generally known meat trays are so strong that the consumer who comes into contact with the container 1 Uso 653 can continue to deal with the generally known fresh meat/fresh fish tray in the familiar way.

A special advantage is the fact that the changeover to the container 1 according to the present invention does not require any additional adaptations on the part of the producer. A detailed analysis has shown that no adaptations are required as regards the following points:

I. "nesting" the containers 1;

II. the packaging concept in which the containers 1 are delivered to the fresh meat & fresh fish industry;

Ill. the setup of the containers 1 on the machine and coupled thereto 1. the automatic destacking of the containers 1; 2. the manual destacking of the containers 1;

IV. the filling process of he containers 1;

V. the conveyor belt transport of the containers 1 (before filling and after filling);

VI. the gas flushing process;

VII. the application of the further sealing element 31 (printed or unprinted film);

VIII. the labelling the containers 1;

IX. the repackaging of the filled containers 1: 1. both via an automated process; 2. and via a manual process;

X. the transport of the containers 1 from the fresh meat & fresh fish packaging company to the market (hypermarket, supermarket, local shop, public market place).

A detailed consumer analysis teaches us upon introduction of the container 1 according to the present invention no adaptations in consumer behaviour are required as regards the following points: | the presentation of the container 1 at the sales points;

II the use of the container 1 (from the shopping bag/trolley to the kitchen counter); [Il the opening of the container 1;

IV the disposal of the empty container.

All the above advantages at least in part result from the inventor's insight to apply the sealing element in a recessed plane relative to the lowermost plane of the container 1 and to make use of the "inside cut seal" technology upon affixing the sealing element 31 to the (preferably thermoformed) container body 2.

Figure 11 is a schematic top plan view of a seventh embodiment of the container 1 according to the present invention. Figures 12a and 12b are both schematic, perspective views of the seventh embodiment of the container 1 according to the present invention. Seen in top plan view (figure 11) or in perspective top plan view (figure 12a), the container body 2 in figure 11 is practically identical to the container 1 of figures 6-10. Figure 12b illustrates the difference with figures 6-10, viz. that the partition 16 is provided with an additional resistance element 13 on the side remote from the product space 4, which resistance element surrounds the outlet LU501653 opening 11. Said additional resistance element 13 extends from the partition 16 toward the sealing element 31, up to a position spaced from the sealing element 31. Liquid from the product 5 can thus flow via the outlet opening 11, through the additional resistance element 13, into the receiving space 6. In figure 12b the additional resistance element 13 is an elevated edge. This embodiment is very advantageous, because this additional resistance element additionally prevents the backflow of liquid into the product space 4.

Figures 13a and 13b are schematic views of a section of the seventh embodiment of the container 1 according to the present invention as shown in figure 12. Figures 13a and 13b illustrate how the additional resistance element 13 extends from the partition 16 up to a position spaced from the sealing element 31. The distance between the end of the additional resistance element 13 and the sealing element 31 is sufficiently large for allowing the transport of liquid from the product space 4 so as to achieve an effective discharge of liquid.

Figure 14 shows partition means 8, e.g. made of a thermoplastic material in the left panel.

In the middle panel, a hole is punched in the partition means by a pin 52, where the movement direction of the pin is indicated by a vertical arrow. In the right panel, a supporting element 53 supports the partition means while being punched and has the a function of a mould to form the rolled rim.

Figure 15 shows a partition means of a container body before and after an outlet opening — 11 is made, comprising a rolled rim 51.

In the foregoing, the invention has been described with reference to a few exemplary embodiments. The skilled person will appreciate that many modifications and alternatives are possible within the scope of the invention. The invention is not limited to these exemplary embodiments, however. The scope of the protection sought is defined by the appended claims.

List of reference numerals 1 container 2 container body 4 product space 5 product 6 receiving space 7 liquid 8 partition means 11 outlet opening 12 resistance element 13 additional resistance element 14 recess 14 funnel element

16 partition LU501653 17 product support surface 19 protrusions 31 sealing element 32 further sealing element

41 flanged edge 43 ring channel 45 elevated edge 47 recesses

49 channel 50 air venting hole 51 rolled rim 52 pin 53 support element

Claims (22)

1. A container (1) for packaging products (5), comprising a container body (2) with a product space (4) for accommodating a product and a receiving space (6) at least for receiving liquid (7), in particular liquid from the product, the container body (2) comprising and being integrally formed with partition means (8) that separate the product space (4) and the receiving space (6) from each other, which partition means (8) comprise at least one outlet opening (11) configured to at least discharge liquid (7) from the product space (4) to the receiving space (6), wherein the container is provided with at least one resistance element (12) extending into the receiving space (6), which resistance element (12) surrounds the outlet opening (11) in such a manner that the resistance element (12) prevents the transport of liquid (7) from the receiving space to the product space, characterized in that the partition means comprise one or more venting holes (50), configured to allow air exchange between the product space (4) and the receiving space (6) but prevent liquid exchange between the product space (4) and the receiving space (6).

2. A container according to claim 1, wherein the one or more venting holes venting holes (50) have a diameter of 0.4 mm or less, preferably 0.3 mm or less, more preferably 0.2 mm or less.

3. A container according to claim 1 or 2, wherein the container body (2) is thermoformed from a thermoplastic material.

4. A container according to any one of claims 1 - 3, wherein the one or more venting holes (50) are made by laser cutting.

5. A container according to any one of the preceding claims wherein the venting holes (50) are arranged in the outer periphery of the partition means (8).

6. A container according to any one of the preceding claims wherein the receiving space (6) is closed by a sealing element (31), in particular a sealing film (31).

7. A container according to any one of the preceding claims, wherein the at least one outlet opening (11) and the resistance element (12) are spaced from the sealing element (31).

8. A container according to any one of the preceding claims, wherein a part of the partition means (8) that faces the receiving space (6) comprises the resistance element (12).

9. A container according to claim 8, wherein the resistance element (12) comprises a protrusion (19) that extends toward the receiving space (6).

10. A container according to any one of the preceding claims, wherein a recess (14, 14") is provided in the part of the partition means (8) that faces the product space (4).

11. A container according to claims 9 and 10, wherein the protrusion (19) corresponds to the recess (14).

12. A container according to claim 11, wherein the outlet opening (11) is provided in the recess 501653 (14, 14").

13. A container according to claim 9, wherein the protrusion (19) comprises a rolled rim (51) surrounding the outlet opening (11).

14. A container according to claim 13, wherein the rolled rime has a height of 0.1 - 10 mm.

15. A container of any of the preceding claims, wherein the outlet opening (11) has a diameter of 4 — 7, preferably of 5 — 6 mm.

16. A container according to any one of the preceding claims, wherein the partition means (8) comprise a partition, in particular wherein the partition has a substantially constant thickness.

17. A container according to any one of the preceding claims, wherein the part of the partition means that faces the product space (4) defines a product support surface for the product.

18. A container according to any one of the preceding claims, wherein the outlet opening (11) is spaced from the product support surface, seen in a direction toward the receiving space.

19. A container according to any one of the preceding claims, wherein the outlet opening (11) is provided near a central part of the container body.

20. A container according to any one of the preceding claims, wherein the container comprises a multitude of outlet openings (11), wherein the openings of said multitude of outlet openings are substantially evenly spaced.

21. A container according to any one of the preceding claims, wherein the receiving space is free from liquid-absorbing means, in particular free from a liquid-absorbing layer of material.

22. A container according to any one of the preceding claims, wherein a product, in particular a food product such as a fresh meat product, is contained in the product space (4), and wherein the product space (4) is closed by means of a further sealing element (32), in particular a further sealing film (32).