Lid assembly for packaging, lid and spout set for packaging, and packaging with lid and spout set

Abstract

A cover assembly (5) is described, comprising at least: a coupling ring (21); a cover (22); and a connecting unit (23) connecting the cover (22) to the coupling ring (21). The cover (22) comprises a cover wall (30) configured to cover a pouring outlet (12); and a sealing ring (32) protruding from the cover wall (30) and configured to interact with a collar (13) carrying the pouring outlet (12) to seal the pouring outlet (12). The sealing ring (32) comprises at least a first annular portion (34) and a second annular portion (35). The first annular portion (34) comprises a first end (41) spaced apart from the cover wall (30), and the second annular portion (35) comprises a second end (42) spaced apart from the cover wall (30). A first distance (d1) between the first end (41) and the cover wall (30) relative to the normal axis (N) of the cover wall (30) is greater than a second distance (d2) between the second end (42) and the cover wall (30) relative to the normal axis (N).

Description

Technical Field

[0001] The present invention also relates to a cap assembly for a spout of a package, in particular a package having a sealed body, which is filled with a pourable product, even more in particular a pourable food product.

[0002] Advantageously, the present invention also relates to a cap and spout set for a package, in particular having a sealed body, filled with a pourable product, even more in particular a pourable food product, and having a spout and cap assembly.

[0003] Advantageously, the present invention also relates to a package, in particular a package with a sealed body, filled with a pourable product, even more in particular a pourable food product, and comprising a lid assembly, in particular a lid and spout set. Background Art

[0004] It is known that many liquid or pourable food products, such as fruit juice, UHT (ultra-high temperature treated) milk, wine, ketchup etc., are sold in packages, in particular sealed packages, which are made of aseptic packaging material.

[0005] A typical example is the parallelepiped packaging known as Tetra Brik Aseptic (registered trademark) for pourable foods, which is made by sealing and folding a laminated strip of packaging material. The packaging material has a multilayer structure comprising a carton and / or paper base layer, covered on both sides with layers of heat-sealable plastic material (e.g., polyethylene). In the case of aseptic packaging for long-term storage products, the packaging material also includes a layer of oxygen barrier material, such as aluminum foil, which is superimposed on a layer of heat-sealable plastic material and covered with another layer of heat-sealable plastic material, which forms the inner surface of the packaging that ultimately comes into contact with the food.

[0006] Some known packages, in particular corresponding sealed bodies of packages formed from packaging material, include a designated pouring opening that allows the pourable product to be poured out of the package. Typically, the designated pouring opening is covered by a separator film that separates the interior of the package from the external environment and will be opened or removed or broken or cut or pierced before the pourable product is first poured out, so as to allow the pourable product to be poured out through the designated pouring opening. It is also known to arrange a lid and spout assembly having a spout and lid assembly on the body around the designated pouring opening. The spout has a pouring outlet to allow the pourable product to be controlled poured out of the package, and the lid assembly allows the pouring outlet to be selectively closed and opened.

[0007] The spout comprises a collar carrying a pouring spout.

[0008] The lid assembly includes a coupling ring arranged around the collar; a lid configured to selectively move between a closed configuration and an open configuration, in which the lid is configured to close and open the pouring spout, respectively; and a connecting unit connecting the lid to the coupling ring and defining a hinge axis about which the lid is angularly movable to control the lid between the closed configuration and the open configuration.

[0009] The lid includes a lid wall configured to cover the pour spout when the lid is in the closed configuration and a sealing ring protruding from the top wall and configured to interact with the collar to seal the pour spout when the lid is in the closed configuration.

[0010] It has been found to be inconvenient that, in certain circumstances, and during movement of the lid from the open configuration to the closed configuration, the sealing ring may fail to properly engage the collar, thereby preventing proper sealing of the pour spout when the lid is in the closed configuration.

[0011] Therefore, it is desirable in the art to provide a cover assembly that does not cause such inconvenience. Summary of the Invention

[0012] It is therefore an object of the present invention to provide in a simple and cost-effective manner an improved cap assembly for a spout of a package, in particular a package having a sealed body, which is filled with a pourable product, even more particularly a pourable food product.

[0013] In particular, it is an object of the present invention to provide in a simple and low-cost manner an improved lid assembly for a spout of a package, in particular a package having a sealed body, filled with a pourable product, even more in particular with a pourable food product, which lid assembly ensures correct sealing of the pouring outlet when the lid is in the closed configuration.

[0014] Another object of the present invention is to provide an improved lid and spout set for a package, in particular a package having a sealed body, filled with a pourable product, even more particularly with a pourable food product, in a simple and low-cost manner.

[0015] In particular, a further object of the present invention is to provide in a simple and low-cost manner an improved lid and spout assembly for a package, in particular a package having a sealed body, filled with a pourable product, even more in particular with a pourable food product, which lid and spout assembly ensures that the pouring outlet is properly sealed when the lid is in the closed configuration.

[0016] A further object of the present invention is to provide, in a simple and cost-effective manner, a package, in particular a package with a sealed body, which is filled with a pourable product, in particular a pourable food product, and which has an improved lid assembly, in particular a lid assembly that ensures correct sealing of the pouring outlet when the lid is in the closed configuration.

[0017] According to the present invention, there is provided a cap assembly according to claim 1 .

[0018] Further advantageous embodiments of the cover assembly are described in the claims which are directly or indirectly dependent on claim 1 .

[0019] According to the present invention, there is also provided a lid and spout set according to claim 14.

[0020] According to the present invention, there is also provided a package according to claim 15 . BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Non-limiting embodiments of the present invention will now be described by way of example with reference to the accompanying drawings, in which:

[0022] Figure 1 is a schematic perspective view of a portion of a package having a lid assembly according to the present invention in a first configuration, with some components removed for clarity;

[0023] Figure 2 Is in the second configuration Figure 1 a side view of the cover assembly with some components removed for clarity;

[0024] Figure 3 yes Figure 1 a perspective bottom view of a detail of the cover assembly of FIG. 1 with some parts removed for clarity; and

[0025] Figure 4 yes Figure 1 A partially cutaway side view of some details of the cover assembly of FIG. 1 with some parts removed for clarity;

[0026] Figure 5 It is in the third configuration Figure 1 an enlarged perspective view of a detail of the cover assembly of FIG. 1 with some parts removed for clarity; and

[0027] Figure 6 yes Figure 1 A partially cutaway side view of some details of a cover assembly with some parts removed for clarity. DETAILED DESCRIPTION

[0028] Reference numeral 1 generally designates a package (shown only in part to the extent necessary for understanding the invention), comprising:

[0029] a sealed body 2 , in particular a sealed carton package, which is filled with a pourable product, in particular a pourable food product, and in particular has a designated pouring opening configured to allow the pourable product to flow out of the body 2 ; and

[0030] a lid and spout set 3 coupled to the sealing body 2 and having at least one spout 4 arranged and / or arrangeable around a designated pouring opening, and a lid assembly 5 coupled and / or coupleable to the spout 4 .

[0031] According to some preferred non-limiting embodiments, the body 2 is obtained from a packaging material, in particular a composite packaging material, having a multilayer structure (not shown and known per se).

[0032] Preferably, the packaging material is provided in roll form.

[0033] Preferably, the body 2 is obtained by forming a tube from the packaging material, sealing the tube longitudinally, filling the tube with the pourable product, and sealing and cutting the tube transversely.

[0034] Preferably, the packaging material comprises at least one layer of fibrous material (e.g. paper or cardboard) and at least two layers of heat-sealing plastic material (e.g. polyethylene) between which the fibrous material layer is inserted. One of the two layers of heat-sealing plastic material defines the inner face of the body 2 in contact with the pourable product.

[0035] Preferably, the packaging material further comprises a layer of gas and light barrier material, such as an aluminum foil or an ethylene vinyl alcohol (EVOH) film, in particular arranged between one of the heat-sealable plastic material layers and the fiber material layer. Preferably, but not necessarily, the packaging material further comprises a further layer of heat-sealable plastic material between the gas and light barrier material layer and the fiber material layer.

[0036] According to a preferred non-limiting embodiment, the spout 4 is applied to the base package 2 before, during or after the forming, filling and sealing of the body 2 .

[0037] Alternatively, the spout 4 may be applied to the packaging material before the packaging material is arranged in the packaging machine or while the packaging material is advanced through the packaging machine to form, fill and seal the body 2 from the packaging material.

[0038] In particular, the spout 4 is applied to the packaging material or the body 2 by means of a moulding process and / or adhesive bonding and / or ultrasonic bonding.

[0039] Preferably, the cap assembly 5 is coupled to the spout 4 before or after the spout 4 is applied to the body 2 or packaging material.

[0040] According to some preferred non-limiting embodiments, the spout 4 and the lid assembly 5 are obtained from a polymeric material, in particular molded.

[0041] Special References Figure 1 , the body 2 extends along the longitudinal axis A, the first transverse axis B and the second transverse axis C. In particular, the extension of the package 2 along the longitudinal axis A is greater than the extension of the package 2 along the first transverse axis B and the second transverse axis C.

[0042] Preferably, the body 2 is parallelepiped-shaped.

[0043] According to some preferred non-limiting embodiments, the body 2 comprises a first wall portion (not shown and known per se), which is particularly transverse to, and even more particularly perpendicular to, the axis A, along which the body 2 extends. Preferably, the first wall portion defines a support wall of the package 1 (particularly the body 2), which is designed to be in contact with a support surface (e.g., a stand) when in use, for example when exposed in a point of sale or when stored. In particular, when arranged on a support surface, the first wall portion defines a bottom wall portion.

[0044] Preferably, the body 2 further comprises a plurality of side walls 6 which are (fixedly) connected to the first wall portion and extend therefrom, in particular substantially parallel to the axis A.

[0045] Preferably, the body 2 further comprises a second wall portion 7, which is opposite the first wall portion and is (fixedly) connected to at least some of the side walls 6. In particular, the side walls 6 are interposed between the first wall portion and the second wall portion 7. In particular, the second wall portion 7 defines a cover wall portion when arranged on the support.

[0046] According to some non-limiting embodiments, the first wall portion and the second wall portion 7 may be parallel to each other.

[0047] According to a non-limiting alternative embodiment not shown, the first and second wall portions 7 may be inclined relative to each other.

[0048] According to some non-limiting embodiments, the second wall portion 7 carries and / or comprises a designated pouring opening.

[0049] According to some preferred non-limiting embodiments, the package 1, in particular the body 2, comprises an interior space configured to contain and / or hold a pourable product. In particular, the first wall portion, the side wall 6 and the second wall portion 7 define the interior space.

[0050] According to a preferred, non-limiting embodiment, the body 2 includes a separating membrane (not shown and known per se) covering the designated pouring opening. In particular, the separating membrane separates the interior space of the designated pouring opening from the external environment in the region of the interior space of the designated pouring opening, in particular at the designated pouring opening. Preferably, the separating membrane comprises a gas and light barrier material, for example, an aluminum foil or an ethylene vinyl alcohol (EVOH) film.

[0051] In particular, during first use (see further below for more details), the separating membrane is at least partially removed and / or broken and / or opened and / or cut and / or punctured to allow the pourable product to flow out of the inner space and the body 2 .

[0052] According to a preferred, non-limiting embodiment, the separating membrane is defined by a portion of the packaging material, in particular by a portion of a layer of the packaging material different from the layer of fibrous material.

[0053] Special References Figure 1 、 2 , 5 and 6, the spout 4 comprises at least:

[0054] a pouring spout 12 configured to allow the pourable product to flow out of the package 1 ; and

[0055] - a collar 13 with (including) a pouring spout 12 .

[0056] Preferably, the spout 4 further comprises a base 15 which couples the spout 4 to the body 2 around the designated pouring opening and / or is configured to couple the spout 4 to the body 2 around the designated pouring opening, in particular to the second wall portion 7 .

[0057] In more detail, the collar 13 extends along a longitudinal axis E (in particular parallel to the axis A) and carries (includes) the pouring outlet 12 at a first axial end of the collar 13 itself and carries an inlet opening for the pourable product at a second axial end of the collar 13 itself opposite the first axial end.

[0058] In particular, the collar 13 defines (and / or includes) a flow passage 17 for the pourable product extending between the inlet opening and the pouring outlet 12. In use, the collar 13 is configured to receive the pourable product from the interior space through the inlet opening and to allow the pourable product to flow out of the pouring outlet 12.

[0059] In particular, the collar 13 comprises an edge 18 which delimits the pouring outlet 12 and is arranged in particular at a first axial end.

[0060] Preferably, the collar 13 includes an inner surface 19 that defines the flow channel 17 .

[0061] Even more preferably, the collar 13 further comprises an outer surface 20 opposite the inner surface 19 .

[0062] In particular, the collar 13 presents a tubular configuration.

[0063] Even more particularly, the collar 13 presents, relative to a cross section perpendicular to the longitudinal axis E, an annular cross-sectional profile.

[0064] Special References Figures 1 to 6 , the cover assembly 5 comprises at least:

[0065] - a coupling ring 21 , which may be arranged and / or is arranged around a portion of the spout 4 , in particular around the collar 13 ;

[0066] - a lid 22 configured to selectively close and open the pouring outlet of the spout; and

[0067] A connecting unit 23 connecting the cover 22 to the coupling ring 21 .

[0068] According to some preferred non-limiting embodiments, the connection unit 23 hinges the lid 22 to the coupling ring 11. In particular, when the lid 22 is coupled to the spout 4, the lid 22 can be angularly moved around the hinge axis F (particularly transverse to the longitudinal axis E) defined by the connection unit 23.

[0069] Special References Figure 2 、 5 6, the connection unit 23 comprises one or more coupling elements 24, in a specific non-limiting embodiment two coupling elements (even if only one is visible in the figures), fixed to the coupling ring 21 and protruding from the coupling ring 21 and connected to the cover 22. In particular, the coupling elements 24 are designed to define an articulation axis F and to allow angular movement of the cover 22 about the articulation axis F.

[0070] According to some preferred non-limiting embodiments, the connection unit 23, in particular the coupling element 24, is connected to a contact portion 25 of the lid 22. In particular, the contact portion 25 defines the rear portion of the lid 22, i.e., the contact portion 25 faces away from the user, at least when the lid 22 is first moved from the closed configuration to the open configuration.

[0071] Preferably, the cover assembly 5 further comprises a breakable coupling bridge 26 connecting the coupling ring 21 and the cover 22 to each other. The coupling bridge 26 is designed to break irreversibly during the first control of the cover 22 from the closed configuration to the open configuration.

[0072] According to some preferred non-limiting embodiments, the lid assembly 5 further comprises an opening device (not shown and known per se), which is preferably operably coupled to the lid 22 and is configured to at least partially open and / or cut and / or break and / or remove the separating membrane during the first time the lid 22 is controlled from the closed configuration to the open configuration.

[0073] According to some non-limiting embodiments, the opening device includes a (polymer) cover layer fused to and / or connected to and / or partially defining a separation membrane, and a coupling member connected to the cover layer and the lid 22. In use, when the lid 22 is first controlled from the closed configuration to the open configuration, the angular movement of the lid 22 about the hinge axis F also causes the angular movement of the cover layer and the separation membrane about the hinge axis F.

[0074] Alternatively, the opening means may be in the form of a cutter or strapping element which is connected to and / or fused to and / or at least partially defines the separation membrane and which the consumer needs to remove manually from the body 2 .

[0075] According to some preferred non-limiting embodiments, the cover 22 is controlled between at least the following configurations:

[0076] - a closed configuration, wherein the lid 22 is configured to cover, and / or cover the pouring spout 12, in particular with

[0077] To prevent the pourable product from flowing out of the pouring outlet 12; and

[0078] an open configuration, in which the lid 22 is detached from the pouring spout 12 and / or is configured so as to, in particular, allow the pourable product to flow out through the pouring spout 12 .

[0079] Preferably, the cover 22 is movable about the hinge axis F between at least an active angular position and a rest angular position, wherein the cover 22 is controlled in the closed configuration and the open configuration, respectively.

[0080] According to some preferred non-limiting embodiments, the lid 22 includes a lid wall 30 configured to cover the pour spout when the lid 22 is arranged in the closed configuration, and a side wall 31 projecting from the lid wall 30 and configured to at least partially surround the collar 13 when the lid 22 is arranged in the closed configuration.

[0081] Preferably, the cover wall 30 and the side wall 31 define an inner space having a (substantially) cylindrical shape. In particular, the inner space accommodates the collar 13 and at least a portion of the flow channel 17 when the cover 22 is arranged in the closed configuration.

[0082] Advantageously, the lid 22 further comprises a sealing ring 32 protruding from the lid wall 30 , in particular connected to the lid wall 30 , and configured to interact with the collar 13 so as to seal the pouring spout 12 when the lid 22 is in the closed configuration.

[0083] In particular, the sealing ring 32 is configured to at least partially protrude into the flow passage 17 and engage the inner surface 19 when the lid 22 is in the closed configuration. In other words, the portion of the lid wall 30 surrounded by the sealing ring 32 and the sealing ring 32 itself define a removable cap that is partially disposed within the flow passage 17 and cooperates with the other pour spout 12 to seal when the lid is in the closed configuration.

[0084] It should be noted that the sealing ring 32 contributes to sealing the pouring spout 12 together with a portion of the lid wall 30. In practice, the sealing ring 32 is configured to seal a peripheral portion of the pouring spout 12, in particular at the edge 18. In particular, the sealing ring 32 is configured to abut against the inner surface 19, in particular at the edge 18, in order to avoid any lateral leakage of the pourable product.

[0085] Preferably, sealing ring 32 includes an outer surface 33 configured to engage inner surface 19 when lid 22 is in the closed configuration.

[0086] In particular, the outer diameter of the sealing ring 32 is (substantially) equal to the inner diameter of the collar 13 (in particular the rim 18 ).

[0087] In particular, the sealing ring 32 is at least partially surrounded by the side wall 31 .

[0088] Preferably, the sealing ring 32 is connected to an inner surface 37 of the cover wall 30 , which faces the flow channel 17 , when the cover 22 is arranged in the closed configuration.

[0089] Advantageously, the sealing ring 32 comprises at least one first ring portion 34 , at least one second ring portion 35 and in particular one or more intermediate portions 36 (in the specific case two intermediate portions are shown) connecting the first ring portion 34 and the second ring portion 35 to each other.

[0090] Preferably, the first ring portion 34 includes a first contact end 38, the second ring portion 35 includes a second contact end 39, and in particular, each intermediate ring portion 36 includes a respective third contact end 40. In particular, the first contact end 38, the second contact end 39, and in particular the third contact end 40, are connected to the cover wall 30, in particular to the inner surface 37.

[0091] Preferably, first ring portion 36 further includes a first end 41 spaced from cover wall 30, particularly inner surface 37, and opposite first contact end 38, and second ring portion 35 further includes a second end 42 spaced from cover wall 30, particularly inner surface 37, and opposite second contact end 39. Even more preferably, each intermediate ring portion 36 further includes a respective third end 43 spaced from cover wall 30, particularly inner surface 37, and opposite respective third contact end 40.

[0092] According to some preferred non-limiting embodiments, the first ring portion 34 is closer to the contact portion 25 than the second ring portion 35. In other words, the first ring portion 34 is interposed between the contact portion 25 and the second ring portion 35.

[0093] Advantageously, a first distance d1 between the first end 41 and the cover wall 30 (especially the inner surface 37) relative to the normal axis N is greater than a second distance d2 between the second end 42 and the cover wall 30 (especially the inner surface 37) relative to the normal axis N.

[0094] It should be noted that the normal axis N is by definition perpendicular to and extends from the cover wall 30 (particularly the inner surface 37).

[0095] Preferably, a third distance d3 between each third end 43 and the cover wall 30 (particularly the inner surface 37 ) relative to the normal axis N is between the first distance d1 and the second distance d2 .

[0096] Preferably, the first end 41 extends in a first plane H1 and the second end 42 extends in a second plane H2 spaced apart from the first plane H1. Even more preferably, the first plane H1 and the second plane H2 are parallel to each other, in particular parallel to the cover wall 30 (in particular the inner surface 37).

[0097] Preferably, the first plane H1 and the second plane H2 are transverse to the normal axis N, in particular perpendicular thereto.

[0098] Preferably, the second plane H2 is between the cover wall 30 and the first plane H1 .

[0099] In particular, the distance between the first plane H1 and the cover wall 30 corresponds to the first distance d1 , and the distance between the second plane H2 and the cover wall 30 corresponds to the second distance d2 .

[0100] According to some preferred non-limiting embodiments, each third end 43 extends in a third plane H3 that is transverse to the first plane H1 and the second plane H2.

[0101] According to some preferred non-limiting embodiments, the first contact end 38, the second contact end 39, and in particular each third contact end 40, extend in a corresponding common plane. In particular, the inner surface 37 extends in a common plane.

[0102] According to some preferred non-limiting embodiments, the cover 22 includes a central axis G. In particular, the central axis G is parallel to the longitudinal axis E, and even more particularly is coaxial with the longitudinal axis E when the cover 22 is in the closed configuration.

[0103] Preferably, the first ring portion 34 extends from a first angular position to a second angular position, and the second ring portion 35 extends from a third angular position to a fourth angular position, relative to the central axis G. Even more particularly, relative to the central axis G, at least one intermediate ring portion 36 extends from the first angular position to the fourth angular position and at least another intermediate ring portion 36 extends from the second angular position to the third angular position.

[0104] According to some preferred non-limiting embodiments, the first distance d1 between the first angular position and the second angular position relative to the center axis G is constant; and / or the second distance d2 between the third angular position and the fourth angular position relative to the center axis G is constant.

[0105] Preferably, each third distance d3 varies continuously between the second angular position and the third angular position and between the fourth angular position and the first angular position, respectively.

[0106] According to some preferred non-limiting embodiments, the contact portion 25 extends between a first angular contact position and a second angular contact position relative to the central axis G. In particular, the first angular contact position and the second angular contact position are between the first angular position and the second angular position.

[0107] In use, a user receives the package 1 with the lid 22 in the closed configuration to seal the pour spout 12 and prevent the pourable product from exiting the pour spout 12. In particular, the seal is achieved by the lid wall 30 and sealing ring 32 engaging the collar 13, particularly the inner surface 19.

[0108] In order to allow the outflow of the pouring spout 12, it is necessary to control the lid 22 from the closed configuration to the open configuration. When the lid 22 is controlled from the closed configuration to the open configuration for the first time, the coupling bridge 26 is irreversibly broken, and the opening device at least partially removes and / or opens and / or cuts and / or breaks and / or pierces the separating membrane.

[0109] Afterwards, the cover 22 can be controlled again from the open configuration to the closed configuration.Thus, due to the first ring portion 34, a correct arrangement of the sealing ring 32 relative to the collar 13 is ensured.

[0110] The advantages of the lid assembly 5 and / or lid and spout set 3 and / or packaging 1 according to the present invention will become apparent from the foregoing description.

[0111] In particular, by dividing the sealing ring 32 into at least a first ring portion 34 and a second ring portion 35, it is ensured that the sealing ring 32 is correctly arranged relative to the collar 13 during control of the lid 22 from the open configuration to the closed configuration. In particular, it is ensured that the sealing ring 32 at least partially enters the flow channel 17 and that the outer surface 33 abuts against the inner surface 19.

[0112] Obviously, changes may be made to the lid assembly 5 and / or the lid and spout set 3 and / or the packaging 1 as described herein without departing from the scope of protection as defined in the accompanying claims.

Claims

1. A lid assembly (5) adapted to be coupled to a spout (4) of a package (1) filled with a pourable product, said spout (4) being coupled to said body (2) around a designated pouring opening of a sealed body (2), said body (2) comprising a separating membrane covering said designated pouring opening, said body (2) being filled with the pourable product, said packaging material of said body (2) comprising at least one layer of fibrous material; The cover assembly (5) is coupled to the spout (4), and the cover assembly (5) comprises at least: - a coupling ring (21) which can be arranged around a portion of the spout (4); - a lid (22) configured to selectively close and open the pouring outlet (12) of the spout (4), wherein the lid (22) comprises a central axis (G); and a connecting unit (23) connecting the cover (22) to the coupling ring (21), the connecting unit (23) defining a hinge axis (F) about which the cover (22) is angularly movable; wherein the cover (22) is controllable to be in a closed configuration and an open configuration, wherein in the closed configuration, the cover (22) is configured to cover the pouring outlet (12), and in the open configuration, the cover (22) is configured to open the pouring outlet (12); wherein the lid (22) includes a lid wall (30) configured to cover the pour spout (12) when the lid (22) is in the closed configuration; wherein the lid (22) comprises a sealing ring (32) protruding from the lid wall (30) and configured to interact with the collar (13) of the spout (4) when the lid (22) is in the closed configuration to seal the pouring spout (12) with the lid (22); wherein the sealing ring (32) comprises at least a first ring portion (34) and a second ring portion (35); wherein the first ring portion (34) includes a first end (41) spaced from the cover wall (30), and the second ring portion (35) includes a second end (42) spaced from the cover wall (30); wherein the first end (41) extends in a first plane (H1), and the second end (42) extends in a second plane (H2) spaced apart from the first plane (H1); wherein the first plane (H1) and the second plane (H2) are transverse to a normal axis (N), the normal axis (N) being perpendicular to and extending from the cover wall (30); wherein the first plane (H1) and the second plane (H2) are parallel to each other; wherein a first distance (d1) between the first end (41) and the cover wall (30) relative to a normal axis (N) of the cover wall (30) is greater than a second distance (d2) between the second end (42) and the cover wall (30) relative to the normal axis (N); wherein the sealing ring (32) comprises at least one intermediate ring portion (36) connecting the first ring portion (34) and the second ring portion (35) to each other; wherein the first ring portion (34) extends from a first angular position to a second angular position relative to the central axis (G), and the second ring portion (35) extends from a third angular position to a fourth angular position relative to the central axis (G); the connecting unit (23) contacts the cover (22) at a contact portion (25) of the cover (22); wherein the contact portion (25) extends between a first angular contact position and a second angular contact position relative to the central axis (G); wherein the first angular contact position and the second angular contact position are between the first angular position and the second angular position; wherein, relative to said central axis (G), at least one intermediate ring portion (36) extends from said first angular position to said fourth angular position and at least another intermediate ring portion (36) extends from said second angular position to said third angular position; wherein each intermediate annular portion (36) includes a third end (43) opposite to the cover wall (30); The third distance (d3) of each intermediate ring portion (36) from the cover wall (30) relative to the normal axis (N) is between the first distance (d1) and the second distance (d2).

2. The cover assembly according to claim 1, wherein the second plane (H2) is between the cover wall (30) and the first plane (H1).

3. The lid assembly according to claim 1 or 2, wherein the first plane (H1) and the second plane (H2) are perpendicular to the normal axis (N).

4. The cover assembly of claim 1 or 2, wherein the sealing ring (32) includes an outer surface (33) configured to engage the inner surface (19) of the collar (13) when the cover (22) is in the closed configuration.

5. Cap assembly according to claim 1 or 2, wherein the collar (13) defines a flow channel (17) for the pourable product; wherein the sealing ring (32) at least partially protrudes into the flow channel (17) when the cover (22) is in the closed configuration.

6. The cap assembly according to claim 1 or 2, wherein the connecting unit (23) contacts the cap (22) at a contact portion (25) of the cap; The first ring portion (34) is closer to the contact portion (25) than the second ring portion (35).

7. Cap assembly according to claim 1 or 2, The lid (22) is in an active angular position and a rest angular position relative to the hinge axis (F) when in the closed configuration and the open configuration, respectively.

8. A cover assembly according to claim 1 or 2, wherein the first ring portion (34) includes a first contact end (38), which contacts the cover wall (30) and is opposite to the first end (41), and the second ring portion (35) includes a second contact end (39) that contacts the cover wall (30).

9. The cover assembly of claim 8, wherein the first contact end (38) and the second contact end (39) lie on a common plane.

10. A lid and spout set (3) comprising at least one spout (4) having a collar (13), and a lid assembly (5) according to any one of the preceding claims 1 to 9 coupled to the spout.

11. A package (1) filled with a pourable product, comprising at least one spout (4) having a collar (13) and a cap assembly (5) according to any one of the preceding claims 1 to 9 coupled to the spout.

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