Orifice plug, orifice plug arrangement, container with orifice, container closure with orifice, container with orifice and intermediate container for bulk goods

Description

1 / 16 “ORIFICE CAP, ORIFICE CAP ARRANGEMENT, CONTAINER WITH ORIFICE, CONTAINER CLOSURE WITH ORIFICE, CONTAINER WITH ORIFICE AND INTERMEDIATE CONTAINER FOR BULK GOODS”

[001] The invention relates to an orifice plug to be disposed in an orifice neck, said orifice plug comprising a plug having an external thread intended to interact with an internal thread of the plug neck and an annular sealing element disposed before the external thread on the outer circumference of the plug when viewed in a screw-in direction of the orifice plug in the orifice neck. Furthermore, the invention relates to an orifice plug arrangement comprising an orifice neck and an orifice plug. Additionally, the invention relates to a container with an orifice. Furthermore, the invention relates to a container closure with an orifice. Finally, the invention relates to an intermediate container for bulk goods.

[002] A container with an orifice, in particular an intermediate bulk container (IBC), typically has an orifice opening that is closed with a screw cap and / or a closure. There are different embodiments of screw caps and / or closures. In particular, there is a so-called “closed screw cap” and an “open screw cap”. A “closed screw cap” and / or an orifice plug is / are intended to be disposed directly into an orifice neck made by the container with an orifice to close an orifice opening of a container with an orifice. An “open screw cap” and / or an orifice closure comprises a closure cap to be disposed into an orifice opening of a container with an orifice, the closure cap making an orifice neck, the orifice closure comprising an orifice plug to be disposed into the orifice neck.Therefore, the closing cap, for its part, has at least one orifice opening that can be closed with the orifice plug.

[003] Typically, the orifice plug comprises a plug having an external thread intended to interact with an internal thread of the orifice neck and a Petition 870250087637, dated 09 / 26 / 2025, pages 80 / 104 2 / 16 annular sealing element disposed before the external thread on the outer circumference of the plug when viewed in a screw-in direction of the plug orifice in the orifice neck. In this case, the plug is made in such a way that a plug diameter in an axial contact area of ​​the sealing element with the plug is exactly as large as a smaller diameter of the external thread, which, combined with production-related influencing parameters described below, often results in a reduced sealing effect. An external thread of an orifice plug of a closure cap is often made as a G2 thread.

[004] Screw caps or closures of this type are normally manufactured in large quantities from a plastic material, for example, PP and / or HDPE, which is suitable for packaging dangerous goods, in an injection molding process, the individual components of the screw caps and / or closures, i.e., for example, in the case of an “open screw cap” and / or a container closure with an orifice, the closure cap, the orifice plug and the sealing element, being manufactured by means of various injection molding tools. In this process, shrinkage and contraction frequently occur due to the material and the process, which adversely affects the dimensional accuracy of the components. This is compounded by the fact that component dimensions may also vary depending on the batch or as a result of tool-related measurements or process influences.

[005] Regardless of these circumstances, the components must always fit together for their intended interaction, in particular to produce a necessary sealing effect. The aforementioned influence parameters assume, however, that this objective is frequently not achieved, resulting in a high rejection rate of pre-assembled screw caps and / or closures and, moreover, can lead to leaks in orifice necks and / or orifice containers for which the screw caps and / or closures may be intended, particularly if defects are overlooked during production inspections.

[006] With the orifice plug known from the prior art, there is Petition 870250087637, dated 09 / 26 / 2025, pp. 81 / 104 3 / 16 Another problem arises from elastic deformation of the sealing element when the hole plug is placed in the hole neck. When the hole plug is screwed into the hole neck, the sealing element typically enters a conical area of ​​an annular gap between the hole plug and the hole neck, within a conical section of the hole neck. If the hole plug is now screwed further or too deep into the hole neck, the sealing element is also frequently pressed into a cylindrical area of ​​the annular gap within a cylindrical section of the hole neck adjacent to the conical section when viewed in the screwing direction. A local notch is formed in the sealing element as the sealing element encounters the beginning of the internal thread provided in the cylindrical section. This disadvantageously results in a reduction of the sealing effect.

[007] The object of the present invention is therefore to propose an orifice plug, an orifice plug arrangement, a container with an orifice, a container closure with an orifice and an intermediate container for bulk goods that allows(s) a secure sealing of an orifice neck.

[008] This object is achieved by an orifice plug having the features of claim 1, an orifice plug arrangement having the features of claim 7, an orifice container having the features of claim 14, an orifice container closure having the features of claim 15, an orifice container having the features of claim 16 and an intermediate container for bulk goods having the features of claim 17.

[009] Below, the terms “before” and “after,” which should be understood spatially, such as, for example, “before the external thread,” “before the retaining frame,” “after the collar,” or “after the conical section,” etc., refer to a screwing direction of the hole plug in the hole neck, said screwing direction extending axially with respect to the hole plug and / or the hole neck.

[010] The hole plug, according to the invention, to be disposed in a Petition 870250087637, dated 09 / 26 / 2025, pp. 82 / 104 4 / 16 orifice neck comprises a plug having an external thread intended to interact with an internal thread of the orifice neck and an annular sealing element disposed before the external thread on the outer circumference of the plug when viewed in a screw-in direction of the orifice plug in the orifice neck, wherein the plug is made such that a diameter of the plug in a radial contact area of ​​the sealing element with the plug is greater than a smaller diameter of the external thread and / or wherein the plug has a circumferential retaining pattern for the sealing element before the external thread on the outer circumference when viewed in the screw-in direction, the sealing element being disposed before the retaining pattern in the plug when viewed in the screw-in direction.

[011] Therefore, according to a first aspect of the invention, the plug can be carried out in such a way that a plug diameter in a radial contact area of ​​the plug in which the sealing element is in contact with the plug is larger than a smaller diameter of the external thread. In other words, the invention is directed to a change in the geometry of the orifice plug and / or cap by locally increasing a diameter of the orifice plug and / or cap in the radial contact area of ​​the sealing element with the plug, i.e. with a sealing seat, such that a width of an annular gap made between the orifice plug and the orifice neck when the orifice plug is screwed into an orifice neck is reduced, which results in the sealing element being in contact with the orifice neck with an increased preload force so that a secure seal of the orifice neck can be obtained independently of the aforementioned influencing parameters.In this way, the rejection rate can also be significantly reduced.

[012] According to a second aspect of the invention, which is provided alternatively or additionally to the first aspect, the plug has a circumferential retaining mesh for the sealing element before the external thread on the outer circumference, the sealing element being disposed before the retaining mesh in the radial contact area with the plug. The retaining mesh that limits the Petition 870250087637, dated 09 / 26 / 2025, pp. 83 / 104 5 / 16 radial contact area, which retains the sealing element and with which the sealing element can be axially in contact, fixing the sealing element in the axial direction, not only prevents, if the second aspect is provided in addition to the first aspect, the sealing element from sliding down from the radial contact area, which is of an increased diameter, in an unscrewed state of the hole plug, but also, independently of the first aspect, serves to ensure that the sealing element is retained in a defined area between the hole neck and the hole plug in a screwed state of the hole plug and, in particular, that it cannot be pulled into the cylindrical area of ​​the annular gap. In this way, contact of the sealing element with the beginning of the internal thread can be prevented.In other words, the plug can be designed in such a way that the sealing element cannot make contact with the internal thread and / or the beginning of the internal thread when the hole plug is screwed into the hole neck, regardless of the screw depth of the hole plug into the hole neck. This avoids a reduction in the sealing effect as a result of local notches of the beginning of the internal thread in the sealing element.

[013] In an advantageous embodiment of the orifice plug, both the first and second aspects are provided in the orifice plug, which results in a particularly secure seal of an orifice neck being obtained.

[014] The orifice neck may be the orifice neck of a container with an orifice, in particular an inner container for an intermediate container for bulk goods. Alternatively, the orifice neck may be the orifice neck of a closure cap to be disposed in an orifice container opening of a container with an orifice, in particular an inner container for an intermediate container for bulk goods.

[015] In an advantageous embodiment of the orifice plug, the diameter of the plug in the radial contact area of ​​the sealing element with the plug may be 1.0 mm to 2.0 mm, preferably 1.2 mm to 1.6 mm, especially preferably 1.4 mm, larger than a smaller diameter of the external thread. Petition 870250087637, dated 09 / 26 / 2025, pp. 84 / 104 6 / 16

[016] In an advantageous embodiment of the hole plug, the external thread can be realized as a G2 thread. In this case, the internal thread can also be realized as a G2 thread. In each case, this refers to a G2 thread based on a DIN ISO 228 standard in its latest version at the priority date of this patent application.

[017] In an advantageous embodiment of the orifice plug, the plug may have a circumferential collar before the external thread on the outer circumference when viewed in the screw-in direction, wherein the sealing element may be disposed after the collar in the plug when viewed in the screw-in direction. In this case, the sealing element may be in contact with the plug in an axial contact area of ​​the collar so that the sealing element may be pressed in the screw-in direction by means of the collar when the orifice plug is screwed into the orifice neck. The collar may be provided before the retaining mesh so that the sealing element may be disposed between the collar and the retaining mesh in the plug. In other words, the sealing element may be in contact with the plug in the radial contact area of ​​the plug that is provided between the collar and the retaining mesh.Additionally, the sealing element may be in contact with the plug in the axial contact area of ​​the collar and in an axial contact area of ​​the retaining mesh. Thus, the sealing element may be fixed, in particular axially, in a sealing bed formed by the radial contact area, the axial contact area of ​​the collar, and the axial contact area of ​​the retaining mesh. The collar may project beyond the retaining mesh radially or in a radial direction that is transverse to the axial direction.

[018] Advantageously, the retaining mesh can be implemented in such a way that the retaining mesh can limit the width of the annular gap in an area of ​​the retaining mesh and / or an annular gap made between an inner wall of the orifice neck and the retaining mesh when the orifice plug is screwed into the orifice neck, such that the sealing element cannot enter an area of ​​the annular gap located between the inner wall and the retaining mesh and / or the annular gap and / or penetrate it. In particular, the retaining mesh can thus prevent Petition 870250087637, dated 09 / 26 / 2025, pp. 85 / 104 7 / 16 that the sealing element enters the cylindrical area and / or prevents contact of the sealing element with the internal thread. The width of the annular gap in the retaining mesh area can preferably be less than 0.5 mm. In an advantageous embodiment of the orifice plug, the width of the annular gap in the retaining mesh area can be 0.4 mm.

[019] Advantageously, the retaining frame can perform a stop by defining a maximum screw-in depth of the hole plug in the hole neck such that the retaining frame and / or the stop can abut against the beginning of the internal thread when the hole plug is screwed into the hole neck to the maximum screw-in depth. Even in the case where the hole plug is screwed additionally or very deeply into the hole neck and where the sealing element can then also be partially or totally located in the cylindrical area, i.e., it can partially or only be in contact with the cylindrical section, the sealing element cannot make contact with the beginning of the internal thread. Instead, the retaining frame performing a stop abuts against the beginning of the internal thread at the maximum screw-in depth of the hole plug in the hole neck.In this way, any contact of the sealing element with the internal thread can be prevented. In this way, local notches of the sealing element can be safely avoided so that the sealing effect is not affected.

[020] The orifice plug arrangement according to the invention comprises an orifice neck having an internal thread and comprises an orifice plug according to the invention for being disposed in the orifice neck.

[021] In an advantageous embodiment of the orifice plug arrangement, the orifice neck may have a conical section having a longitudinal cross-section that becomes smaller when viewed in the screw-in direction and a cylindrical section contiguous to the conical section after the conical section when viewed in the screw-in direction on the inner circumference, wherein the cylindrical section may have the internal thread. The conical section may have a first partially conical section and a second section Petition 870250087637, dated 09 / 26 / 2025, pages 86 / 104 8 / 16 partial conical section contiguous to the first partial conical section after the first partial conical section, wherein the first partial conical section may have a greater inclination and / or a smaller opening angle than the second partial conical section with respect to the screwing direction.

[022] In an advantageous embodiment of the orifice plug arrangement, the orifice plug may be screwed into the orifice neck so that a sealing element of the orifice plug may be in contact only with the conical section making a sealing bed when the orifice plug is screwed into the orifice neck, which may be achieved in particular by providing the retaining mesh and / or by a suitable section of the annular gap width in the area of ​​the retaining mesh. Due to the exclusive contact of the sealing element with the sealing bed of the conical section that is provided for this purpose, an optimal sealing effect may be obtained. In particular, a part of the first partial conical section and the second partial conical section may make up the sealing bed.However, when the orifice plug is screwed into the orifice neck, the sealing element may also be in contact with the conical and cylindrical sections or only with the cylindrical section, depending on the screw depth and / or if it is screwed in too deeply. Advantageously, the sealing element should then not make contact with the beginning of the internal thread, which can be achieved by providing a retaining mesh.

[023] In an advantageous embodiment of the orifice plug arrangement, the cylindrical section may have a first partial cylindrical section and a second partial cylindrical section contiguous to the first partial cylindrical section after the first partial cylindrical section when viewed in the screwing direction, wherein the first partial cylindrical section may be free of internal thread and the second partial cylindrical section may have the internal thread. Thus, depending on the embodiment of the orifice plug arrangement and / or the orifice plug, it is possible to hold the sealing element securely or even more securely in the opposite direction to the internal thread, in particular if the orifice plug has been screwed so deeply into the Petition 870250087637, dated 09 / 26 / 2025, pp. 87 / 104 9 / 16 neck of the orifice so that the sealing element is at least also in contact with the cylindrical section and / or the first partial cylindrical section.

[024] Advantageously, in this case, the first partial cylindrical section, when viewed along the screw-in direction, may have a length that is dimensioned so that contact of the sealing element with the internal thread and / or the beginning of the internal thread can be avoided. The length may correspond to a distance from the sealing bed to the beginning of the internal thread. In an advantageous embodiment of the hole plug arrangement, the first partial cylindrical section, when viewed along the screw-in direction, may have a length of at least 1.0 mm, preferably 1.00 to 1.5 mm, especially preferably 1.1 mm. A distance from the sealing bed to the beginning of the internal thread viewed in the screw-in direction may thus have these measurements.

[025] In an advantageous embodiment of the orifice plug arrangement, a container with an orifice, in particular an inner container for an intermediate container for bulk goods, can perform the orifice neck. In this case, the orifice plug can be a “closed screw cap”.

[026] In an alternative, advantageous embodiment of the orifice cap arrangement, a closing cap to be disposed in an orifice container opening of an orifice container, in particular an inner container for an intermediate container for bulk goods, may perform the orifice neck. In this case, the closing cap may be an “open screw cap”.

[027] The orifice container, in particular an inner container for an intermediate container for bulk goods, according to the invention, incorporates an orifice neck, the orifice container comprising an orifice plug to be disposed in the orifice neck, the orifice neck and the orifice plug making up an orifice plug arrangement according to the invention. The orifice container may also be a drum. The orifice container may have the orifice neck on an upper side. In this case, an orifice container opening in the orifice neck may be directly closed by means of the orifice plug. Petition 870250087637, dated 09 / 26 / 2025, pages 88 / 104 10 / 16

[028] The closure of the orifice container according to the invention comprises a closure cap for being disposed in an orifice container opening of an orifice container, in particular an inner container for an intermediate container for bulk goods, the closure cap comprising an orifice neck, the orifice container closure comprising an orifice plug for being disposed in the orifice neck, the orifice neck and the orifice plug comprising an orifice plug arrangement according to the invention. Consequently, the closure cap may for its part have at least one orifice opening that can be closed with the orifice plug.

[029] The orifice container according to the invention, in particular an inner container for an intermediate container for bulk goods, comprises the orifice container closure according to the invention. The orifice container may also be a drum. The orifice container may have the orifice container opening on an upper side, wherein the closing cap may be disposed in said orifice container opening. In this case, an orifice opening in the orifice neck may be closed by means of the orifice plug.

[030] The closing cap and / or orifice plug and / or plug, the sealing element and the orifice neck may be manufactured from a plastic material, in particular from PP and / or HDPE, for example, by an injection molding process. In particular, the closing cap may be made of HDPE and the orifice plug and / or plug may be made of PP. The sealing element may be made of an elastic material. The orifice container and / or inner container may also be made of a plastic material.

[031] The intermediate container for bulk goods according to the invention comprises one of the orifice containers according to the invention made up as an inner container.

[032] Below, preferred embodiments of the invention are explained in more detail with reference to the accompanying drawings. IN THE FIGURES: Petition 870250087637, dated 09 / 26 / 2025, pp. 89 / 104 11 / 16 Figure 1 shows a cross-sectional view of a known orifice plug arrangement from the prior art; Figure 2 shows a detailed view of an area X shown in Figure 1; Figure 3 shows a cross-sectional view of an orifice plug arrangement according to the invention; Figure 4 shows a detailed view of an area Y shown in Figure 3; Figure 5 shows a cross-sectional view of a neck orifice of an orifice plug arrangement according to the invention; Figure 6 shows a detailed view of an area E shown in Figure 5; Figure 7 shows a perspective view of a container closure with an orifice; Figure 8 shows a sectional view of the container closure with orifice.

[033] A combination of Figures 1 and 2 shows an orifice plug arrangement 10 shown from the prior art, said orifice plug arrangement 10 comprising an orifice neck 11 and an orifice plug 13 which is partially disposed in an orifice opening 12 of the orifice neck 11.

[034] The neck of the orifice 11 makes a conical section 14 having a longitudinal cross-section that is becoming smaller when viewed in a tapering direction 15 and a cylindrical section 16 contiguous to the conical section 14 after the conical section 14 when viewed in the tapering direction 15 on the inner circumference, the cylindrical section 16 making an internal thread 17 of the neck of the orifice 11.

[035] The hole plug 13 comprises a plug 18 carrying an external thread 19 intended to interact with the internal thread 17 and a circumferential collar 20 before the external thread 19 on the outer circumference when viewed in the screwing direction 15 and comprises an annular sealing element 21 disposed after the collar 20 and before the external thread 19 on the outer circumference of the plug 18 when viewed Petition 870250087637, dated 09 / 26 / 2025, pages 90 / 104 12 / 16 in the direction of screwing 15. The plug 18 is made so that a diameter 22 of the plug 18 in a radial contact area 23 of the sealing element 21 with the plug 18 is exactly as large as a smaller diameter 24 of the external thread 19, which, in particular combined with production-related influencing parameters, results in a reduced sealing effect. An annular gap 26 is made between the neck of the orifice 11 and / or an inner wall 25 of the neck of the orifice 11 and the orifice plug 13, said annular gap 26 having a conical area 27 and a cylindrical area 28. In the present case, the orifice plug 13 is screwed into the neck of the orifice 11 in such a way that the sealing element 21 is situated both in the conical area 27 and in the cylindrical area 28, that is, in contact with both the conical section 14 and the cylindrical section 16.Thus, the sealing element 21 is not in contact with a sealing bed of conical section 14 that is intended to contact the sealing element 21. If the orifice plug 13 is screwed even deeper into the neck of the orifice 11, the sealing element 21 encounters a beginning 29 of the internal thread 17, as a result of which the sealing element 21 is locally notched. Consequently, this results in a further reduction of the sealing effect.

[036] A combination of Figures 3 and 4 shows an arrangement of the orifice plug 30 according to the invention, said arrangement of the orifice plug 30 comprising an orifice neck 31 and an orifice plug 33 that is partially disposed in an orifice opening 32 of the orifice neck 31.

[037] The neck of the orifice 31 makes a conical section 34 having a longitudinal cross-section that is becoming smaller when viewed in a tapering direction 35 and a cylindrical section 36 contiguous to the conical section 34 after the conical section 34 when viewed in the tapering direction 35 on the inner circumference, the cylindrical section 36 making an internal thread 37 of the neck of the orifice 31.

[038] The hole plug 33 comprises a plug 38 carrying an external thread 39 intended to interact with the internal thread 37 and a circumferential collar 40 before the external thread 39 on the outer circumference when viewed in the direction of Petition 870250087637, dated 09 / 26 / 2025, pp. 91 / 104 13 / 16 screw-in 35 and comprises an annular sealing element 41 disposed after the collar 40 and before the external thread 39 on the outer circumference of the plug 38 when viewed in the screw-in direction 35. The plug 38 is made such that a diameter 42 of the plug 38 in a radial contact area 43 of the sealing element 41 with the plug 38 is larger than a smaller diameter 44 of the external thread 39 so that the sealing element 41 is in contact with the neck of the orifice 31 with an increased preload force, which results in an increased sealing effect, in particular independent of influencing parameters related to production. Additionally, the plug 38 makes a circumferential retaining mesh 45 for the sealing element 41 after the collar 40 and before the external thread 39 on the outer circumference when viewed in the screwing direction 35 so that the sealing element 41 is disposed between the collar 40 and the retaining mesh 45 in the plug 38.In other words, the sealing element 41 is in contact with the plug 38 in a radial contact area 43 of the plug 38, which is provided between the collar 40 and the retaining mesh 45. Additionally, the sealing element 41 is in contact with the plug 38 in an axial contact area 46 of the collar 40 and in an axial contact area 46 of the retaining mesh 45. Thus, the sealing element 41 is fixed, in particular axially, in a sealing bed formed by the radial contact area 43, the axial contact area 46 of the collar 40, and the axial contact area 47 of the retaining mesh 45. The collar 40 projects radially beyond the retaining mesh 45. The plug 38 features a cylindrical section 75 that is free of external thread 39 after the retaining frame 45 and / or radial contact area 43 and before the external thread 39 when viewed in the screw-in direction 35 on the outer circumference, the cylindrical section 75 being made with a diameter 76 corresponding to the smaller diameter 44.The 38 plug can also perform the cylindrical section 75 if no retaining mesh and / or retaining mesh 45 is provided.

[039] An annular gap 49 is made between the neck of the orifice 31 and / or an inner wall 48 of the neck of the orifice 31 and orifice plug 33, said annular gap 49 having a conical area 50 and a cylindrical area 51. In the present invention, the Petition 870250087637, dated 09 / 26 / 2025, pp. 92-104 14 / 16 orifice plug 33 is screwed into orifice neck 31 in such a way that the sealing element 41 is situated essentially in the conical area 50, that is, it is essentially in contact with the conical section 34. In this way, the sealing element 41 is in contact with a sealing bed of the conical section 34 which is intended for contact with the sealing element 41. In this case, the retaining mesh 45 prevents the sealing element 41 from entering the cylindrical area 51. For this purpose, the retaining mesh 45 is made in such a way that the retaining mesh 45 limits a width 52 of the annular gap 49 in an area 53 of the retaining mesh 45 in such a way that the sealing element 41 cannot enter an area 54 of the annular gap 45 located between the inner wall 48 and the retaining mesh 45 and / or cannot penetrate it. Due to this retaining mesh design 45, the sealing element 41 is fixed in the screw-in direction 35.

[040] Even in a case where the hole plug 33 is additionally screwed into the neck of the hole 31 and where the sealing element 41 can then also be partially or completely located in the cylindrical area 51, that is, it can partially or only be in contact with the cylindrical section 36, the sealing element 41 does not make contact with a beginning 55 of the internal thread 37 since the sealing element 41 cannot enter an area 54 of the annular gap 49 located between the inner wall 48 and the retaining frame 45 and / or cannot penetrate it. Instead, the retaining frame 45 making a stop 56 rests against the beginning 55 at a maximum screw depth of the hole plug 33 in the neck of the hole 31. In this way, any contact of the sealing element 41 with the internal thread 37 can be prevented. In this way, local notches in the sealing element 41 can be avoided so that the sealing effect is not affected.

[041] A combination of Figures 5 and 6 shows a hole neck 57 of a hole neck arrangement according to the invention not shown further in the case at hand.

[042] The bottleneck features of orifice 57 described below can also be seen in Figures 3 and 4 in the case of orifice 31 bottleneck so that the following Petition 870250087637, dated 09 / 26 / 2025, pp. 93-104 Explanations 15 / 16 can also be applied to the bottleneck of hole 31.

[043] The neck of the orifice 57 makes a conical section 58 having a longitudinal cross-section that becomes smaller when viewed in a tapering direction 62 and a cylindrical section 60 contiguous to the conical section 58 after the conical section 58 when viewed in the tapering direction 62 on the inner circumference, said cylindrical section 60 making an internal thread 59. The conical section 59 has a first partial conical section 61 and a second partial conical section 63 contiguous to the first partial conical section 61 when viewed in the tapering direction 62, wherein the first partial conical section 61 has a greater inclination and / or a smaller opening angle than the second partial conical section 63 with respect to the tapering direction 62.Part of the first partial conical section 61 and second partial conical section 63 make up a sealing bed 64 provided for the meeting of a sealing element (not shown in the case at hand) of an orifice plug (also not shown in the case at hand) of the orifice plug arrangement. Additionally, the cylindrical section 60 has a first partial cylindrical section 65 and a second partial cylindrical section 66 contiguous to the first partial cylindrical section 65 when viewed in the screwing direction 62 wherein the first partial cylindrical section 65 is free of internal thread 59 and the second partial cylindrical section 66 makes up the internal thread 59.A distance 67 between a start 68 of the internal thread 59 and the sealing bed 64 seen in the direction of screwing 62 and / or a length of the first partial cylindrical section 65 when seen in the direction of screwing 62 is / are dimensioned so that the sealing element is prevented from cutting the internal thread 59 during screwing of the hole plug into the hole neck 57, in particular if the hole plug has been screwed too deeply into the hole neck 57.

[044] A combination of Figures 7 and 8 shows a container closure with orifice 69 comprising a closure cap 70 for being disposed of and / or screwed onto a container opening with orifice (not shown in the present case) of an inner container (also not shown in the present case) for an intermediate container for bulk goods, said closure cap 70 being carried Petition 870250087637, dated 09 / 26 / 2025, pages 94 / 104 16 / 16 as an “open screw cap” and having an internal thread 71, the closing cap 70 making up an orifice neck 72, the container closure with orifice 69 comprising an orifice plug 73 screwed into the orifice neck 72, the orifice neck 72 and orifice plug 73 making up an orifice plug arrangement 74. Furthermore, reference is made to the description of Figures 2 to 6. Petition 870250087637, dated 09 / 26 / 2025, pages 95 / 104

Claims

1 / 4 CLAIMS 1. Orifice plug (33, 73) for disposing in an orifice neck (31, 57, 72), said orifice plug (33, 73) comprising a plug (38) having an external thread (39) intended to interact with an internal thread (37, 59) of the orifice neck and an annular sealing element (41) disposed before the external thread on the outer circumference of the plug when viewed in a screw-in direction (35, 62) of the orifice plug in the orifice neck, characterized in that the plug is made such that a diameter (42) of the plug in a radial contact area (43) of the sealing element with the plug is greater than a smaller diameter (44) of the external thread and / or the plug has a circumferential retaining mesh (45) for the sealing element before the external thread on the outer circumference when viewed in the screw-in direction, the sealing element being positioned before the retaining mesh on the plug when viewed in the screw-in direction.

2. Orifice plug, according to claim 1, characterized in that the diameter (42) of the plug (38) in the radial contact area (43) of the sealing element (41) with the plug is 1.0 mm to 2.00 mm, preferably 1.2 mm to 1.6 mm, especially preferably 1.4 mm, larger than the smaller diameter (44) of the external thread (39).

3. Hole plug, according to claim 1 or 2, characterized in that the external thread (39) is carried out as a G2 thread.

4. Orifice plug, according to any one of claims 1 to 3, characterized in that the plug (38) has a circumferential collar (40) before the external thread (39) on the outer circumference when viewed in the screwing direction (35, 62), the sealing element (41) being disposed after the collar in the plug when viewed in the screwing direction.

5. Orifice plug, according to any one of claims 1 to 4, characterized in that the retaining mesh (45) is made in such a way that the retaining mesh limits a width (52) of an annular gap (49) made between an inner wall (48) of the orifice neck (31, 57, 72) and the retaining mesh when the orifice plug (33, 73) is screwed into the orifice neck in such a way that the sealing element (41) cannot enter the annular gap.

6. Hole plug, according to any one of claims 1 to 5, characterized in that the retaining frame (45) makes a stop (56) that defines a maximum screw depth of the hole plug (33, 73) in the hole neck (31, 57, 72) such that the retaining frame rests against a beginning (55, 68) of the internal thread (37, 59) when the hole plug is screwed into the hole neck to the maximum screw depth.

7. Orifice plug arrangement (30, 74) characterized by comprising an orifice neck (31, 57, 72) having an internal thread (37, 59) and comprising an orifice plug (33, 73) to be disposed in the orifice neck, as defined in any one of claims 1 to 6.

8. Orifice plug arrangement according to claim 7, characterized in that the orifice neck (31, 57, 72) has a conical section (34, 58) having a longitudinal cross-section that becomes smaller when viewed in the screwing direction (35, 62) and a cylindrical section (36, 60) contiguous to the conical section after the conical section when viewed in the screwing direction on the inner circumference, the cylindrical section having the internal thread (37, 59).

9. Orifice plug arrangement, according to claim 8, characterized in that the orifice plug (33, 73) is screwable into the orifice neck (31, 57, 72) such that a sealing element (41) of the orifice plug is in contact only with the conical section (34, 58) making a sealing bed (64) when the orifice plug is screwed into the orifice neck.

10. Hole plug arrangement, according to claim 8 or 9, characterized in that the cylindrical section (36, 60) has a first partial cylindrical section (65) and a second partial cylindrical section (66) contiguous to the first partial cylindrical section after the first partial cylindrical section when viewed in the screwing direction (35, 62), the first partial cylindrical section being free of the internal thread Petition 870250087637, dated 09 / 26 / 2025, page 97 / 104 3 / 4 (37, 59) and the second partial cylindrical section having the internal thread.

11. Orifice plug arrangement, according to claim 9 or 10, characterized in that the distance (67) of the sealing bed (64) from a beginning (55, 68) of the internal thread (37, 59) is at least 1.0 mm, preferably 1.0 mm to 1.5 mm, especially preferably 1.1 mm.

12. Orifice plug arrangement, according to any one of claims 7 to 11, characterized in that the orifice container, in particular an inner container for an intermediate container for bulk goods, has the orifice neck (31, 57).

13. Orifice plug arrangement, according to any one of claims 7 to 11, characterized in that the closing cap (70) is disposed in an orifice container opening of an orifice container, in particular an inner container for an intermediate container for bulk goods, carrying the orifice neck (31, 57, 72).

14. Orifice container, in particular an inner container for an intermediate container for bulk goods, the orifice container comprising an orifice neck (31, 57), the orifice container characterized by comprising an orifice plug (33) to be disposed in the orifice neck, the orifice neck and the orifice plug comprising an orifice plug arrangement (30), as defined in any one of claims 7 to 11.

15. Orifice container closure (69) characterized by comprising a closure cap (70) for being disposed in an orifice container opening of an orifice container, in particular an inner container for an intermediate container for bulk goods, the closure cap comprising an orifice neck (31, 57, 72), the orifice container closure comprising an orifice plug (33, 73) for being disposed in the orifice neck, the orifice neck and the orifice plug comprising an orifice plug arrangement (30, 74), as defined in any one of claims 7 to 11.

16. Container with orifice, in particular an inner container for an intermediate container for bulk goods, characterized by comprising a container closure with orifice (69), as defined in claim 15.

17. Intermediate container for bulk goods characterized by comprising a container with an orifice, as defined in any of claims 14 or 16, which is carried out as an inner container. Petition 870250087637, dated 09 / 26 / 2025, pp. 99 / 104

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