Classifications

• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
  • F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections

Definitions

• Structure comprising hollow structural elements connected together, assembly comprising such a structure, and corresponding manufacturing method.
• the present invention deals with a structure comprising:
• connection adapted for connecting the first structural element and the second structural element together, the first structural element, the second structural element and the connection defining an interior volume and an exterior volume, and the connection comprising a sealing system adapted for sealing the interior volume.
• the invention also deals with an assembly comprising such a structure and a piece of equipment supported by the structure.
• the invention also deals with a process of manufacturing such a structure or such an assembly.
• Structures intended to support large pieces of equipment are complex, with various shapes, sometimes deployed in large numbers on a field of operation.
• elements of these structures are manufactured in advance in suitable factories, brought to a location for assembling, and then carried to the operation field.
• Conventional solutions for assembling include welding or bolting the structural elements.
• An aim of the invention is thus to provide a structure ensuring tightness between the assembled structural elements defining an interior volume, and allowing to reduce the investment costs.
• the invention proposes a structure comprising:
• connection adapted for connecting the first structural element and the second structural element together, the first structural element, the second structural element and the connection defining an interior volume and an exterior volume, and the connection comprising:
• a fastening system adapted for fastening the second flange to the first flange, the fastening system comprising a plurality of bolts adapted for pressing the first bearing surface and the second bearing surface against each other, the second axis being intended to be aligned with the first axis, or offset with respect the first axis as a result of manufacturing and/or assembling tolerances, and
• sealing system adapted for sealing the interior volume, the sealing system extending between the first flange and the second flange and surrounding the first axis, the sealing system being in contact with the first bearing surface or the second bearing surface, wherein the first bearing surface is spherical and concave, the first bearing surface defining a first bearing surface radius.
• the structure comprises one or several of the following features, taken in isolation or any technically feasible combination:
• the second bearing surface is spherical and convex, the second bearing surface defining a second bearing surface radius which is:
• the fastening system extends in the interior volume;
• the sealing system comprises: - a flat seal extending in a groove defined by the first flange or the second flange,
• the sealing system comprises a first sealing member and a second sealing member, both surrounding the first axis, the second sealing member extending farther away from the first axis than the first sealing member,
• first flange, the second flange, the first sealing member and the second sealing member define an intermediate volume
• the first flange or the second flange defines a test port from the interior volume or the exterior volume, towards the intermediate volume, allowing to pressurize the intermediate volume;
• the fastening system comprises a swivel defining a first axial passage for each of the bolts
• the second flange defines a second axial passage for each of the bolts
• the bolts are adapted for pressing the swivel against the first flange, the first flange being axially sandwiched between the swivel and the second flange, and
• the second flange and the swivel are rotatably movable with respect to the first flange around the first axis;
• the first flange comprises a tubular portion extending along the first axis and defining a first outer diameter comprised between 0.50 m and 15 m, preferably between 1.5 and 8 m;
• the first flange comprises a tubular portion extending along the first axis and defining a first outer diameter, the first bearing surface radius divided by the first outer diameter defining a ratio comprised between:
• each of the bolts comprises a screw head and a nut, one of the head and the nut being closer to the second flange than the other one, wherein:
• said one of the head and the nut defines a convex spherical surface in contact with a concave spherical surface defined by a washer of the bolts, the washer being axially sandwiched between the second flange and said one of the head and the nut, - a washer of the bolts defines a first convex spherical surface in contact with a concave spherical surface defined by another washer of the bolts, the washer and the other washer being axially sandwiched between the second flange and said one of the head and the nut, the washer being in contact with said one of the head and the nut.
• each of the bolts comprises a screw head and a nut, one of the head and the nut being closer to the first flange or to a swivel of the fastening system adapted for pressing on the first flange, wherein:
• said one of the head and the nut defines a convex spherical surface in contact with a concave spherical surface defined by the first flange or the swivel
• said one of the head and the nut defines a convex spherical surface in contact with a concave spherical surface defined by a washer of the bolts, the washer being axially sandwiched between the first flange or the swivel, and said one of the head and the nut,
• a washer of the bolts defines a convex spherical surface in contact with a concave spherical surface defined by another washer of the bolts, the washer and the other washer being axially sandwiched between the first flange or the swivel, and said one of the head and the nut, the washer being in contact with said one of the head and the nut, or
• a washer of the bolts defines a convex spherical surface in contact with a concave spherical surface defined the first flange or the swivel, the washer being axially sandwiched between the first flange or the swivel, and said one of the head and the nut; the first flange, or a swivel of the fastening system adapted for pressing on the first flange, and/or
• the invention proposes an assembly comprising:
• the piece of equipment is a substation including an electrical transformer or an electrical converter, such as HV/DC or AC/DC, or comprises a gas storage or production unit.
• the invention also proposes a process of manufacturing a structure as described above or an assembly as described above, comprising ...
• the sealing system extending between the first flange and the second flange and surrounding the first axis in order to seal the interior volume.
• FIG. 1 is a diagram showing an assembly according to the invention, comprising a floating structure and a piece of equipment,
• FIG. 2 is a cross-sectional view of a mechanical connection between a first structural element and a second structural element of the structure shown in Figure 1 , the first axis and the second axis defined by the connection being aligned,
• - Figure 3 is a cross-sectional view of the connection shown in Figures 1 and 2, the first axis and the second axis of the connection defining a positive angle due to manufacturing or assembling tolerances
• - Figure 4 is a cross-sectional view of the connection shown in Figures 1 to 3, the first axis and the second axis defining a negative angle due to manufacturing or assembling tolerances
• FIG. 5 is a view analogous to Figure 2 showing a connection according to a first variant of the connection shown in Figures 1 to 4, the first axis and the second axis defined by the connection being aligned,
• FIG. 6 is a view of a detail of Figure 5 showing the sealing system of the connection
• FIG. 7 is a cross-sectional view of the connection shown in Figure 5, the first axis and the second axis defining a positive angle due to manufacturing or assembling tolerances,
• FIG. 8 is a view analogous to Figure 4, showing a connection according to a second variant of the connection shown in Figures 1 to 4, the first axis and the second axis defining a negative angle,
• Figure 9 is a view analogous to Figure 3, showing a connection according to a third variant of the connection shown in Figures 1 to 4, the first axis and the second axis defining a positive angle,
• FIG. 10 is a view analogous to Figure 2, showing a connection according to a fourth variant of the connection shown in Figures 1 to 4, the first axis and the second axis being aligned, and
• Figure 1 1 is a view analogous to Figure 2, showing a connection according to a fifth variant of the connection shown in Figures 1 to 4, the first axis and the second axis being aligned.
• the assembly 10 comprises a structure 12, and a piece of equipment 14 supported by the structure.
• the piece of equipment 14 is a substation including an electrical transformer or an electrical converter, such as HV/DC or AC/DC, and/or comprises a gas storage or production unit, among other possibilities.
• an electrical transformer or an electrical converter such as HV/DC or AC/DC
• a gas storage or production unit among other possibilities.
• the piece of equipment 14 has a mass of more than 1000 metric tons.
• the structure 12 is for example a fixed structure, advantageously of the jacket type, i.e. a frame structure comprising tubular steel members.
• the structure 12 comprises a first hollow structural element 24, and a second hollow structural element 26, and a mechanical connection 28 adapted for connecting the first structural element and the second structural element together.
• the structure 12 also comprises a third hollow structural element 30 mechanically attached to the first structural element 24, the first structural element and the third structural element forming a first pre-assembled system 32.
• the structure 12 for example comprises a fourth hollow structural element 34 mechanically attached to the second structural element 26, the second structural element and the fourth structural element forming a second pre-assembled system 36.
• the structure 12 for example comprises a second mechanical connection 38 adapted for connecting the third structural element 30 and the fourth structural element 34 together.
• the first structural element 24, the second structural element 26 and the connection 28 define an interior volume 40 and an exterior volume 42.
• the third structural element, the fourth structural element and the second connection for example define a second interior volume 44.
• the third structural element 30 and the fourth structural elements 34 are analogous to the first structural element 24 and the second structural element 26 and will not be described.
• connection 38 is advantageously structurally analogous to the connection 28 and will not be described.
• the interior volume 40 and the second interior volume 44 are fluidly connected to each other. In other words, they form one single interior volume.
• first structural element 24 and the second structural element 26 for example are tubes advantageously forming the jacket structure, or as a variant a platform.
• first structural element 24 and the second structural element 26 are connected to the third structural element 30 and the fourth structural element 34 by connections 48, 50 that are analogous to the connection 28.
• connection 28 comprises a first flange 52 fixed to the first structural element 24 and defining a first axis X1 and a first bearing surface S1 , and a second flange 54 fixed to the second structural element 26 and defining a second axis X2 and a second bearing surface S2.
• connection 28 comprises a fastening system 56 adapted for fastening the second flange 54 to the first flange 52, the fastening system comprising a plurality of bolts 58 adapted for pressing the first bearing surface S1 and the second bearing surface S2 against each other. Due to pressure and deformation, the first bearing surface S1 and the second bearing surface S2 are advantageously in surface contact with each other when the bolts 58 are tight.
• connection 28 comprises a sealing system 60 adapted for sealing the interior volume 40 with respect to the exterior volume 42, the sealing system extending between the first flange 52 and the second flange 54 and surrounding the first axis X1 .
• sealing it is meant that the sealing system 60 is adapted for preventing fluids, such as air, nitrogen or water, from circulating from the interior volume 40 to the exterior volume 42, and vice versa, under normal operation conditions of the structure 12.
• fluids such as air, nitrogen or water
• connection 28 is advantageously adapted to transmit mechanical efforts F from the second structural element 26 to the first structural element 24 (or vice versa) for example larger than 1000 tons (about 10 million newtons).
• the interior volume 40 may be pressurized.
• a typical pressure difference between the interior volume 40 and the exterior volume 42 is comprised between 0 and 20 bars.
• the first bearing surface S1 is spherical and concave, the first bearing surface S1 defining a first bearing surface radius R1 .
• the second axis X2 is intended to be aligned with the first axis X1 ( Figure 2), or offset with respect the first axis X1 ( Figures 3 and 4) as a result of manufacturing and/or assembling tolerances.
• the first axis X1 and the second axis X2 define a “positive” angle a between themselves ( Figure 3) or a “negative” angle a ( Figure 4) in a cross sectional plane P of Figures 3 and 4.
• the angle a is 0° if the first axis X1 and the second axis X2 are aligned.
• the angle a is for example comprised between -3.0° and +3.0°, preferably between -1.0° and +1.0°.
• the angle a is for example +1.0° in Figure 3 and -1 .0° in Figure 4.
• the first flange 52 is for example welded to the first structural element 24.
• the first flange 52 for example comprises a tubular portion 62 extending along the first axis X1 and defining a first outer diameter D1 with respect to the first axis X1 .
• the first flange 52 has no tubular portion, and the outer diameter D1 is for example defined by a tubular portion 64 of the first structural element 24.
• the second flange 54 is for example welded to the second structural element 26, and defines a second outer diameter D2.
• the second flange 54 for example comprises a tubular portion 65 extending along the second axis X2 and defining the second outer diameter D2 with respect to the second axis X2.
• the second flange 54 for example comprises a second fixing portion 67 extending radially from the tubular portion 65 and forming a rim.
• the first fixing portion 63 and the second fixing portion 67 advantageously define the first bearing surface S1 and the second bearing surface S2.
• the first fixing portion 63 and the second fixing portion 67 protrude away the first axis X1 (outwardly).
• the first fixing portion 63 is for example approximately (+/- 15°) perpendicular to the tubular portion 62.
• the second fixing portion 67 for example has a proximal part 67A inclined with respect to the tubular portion 65 or to the second axis X2 ( Figures 2 to 4), and a distal part 67B approximately (+/- 15°) perpendicular to the tubular portion 65 or to the second axis X2.
• the second bearing surface S2 is for example defined by the proximal part 67A.
• D1 is for example comprised between 0.50 m and 15 m, preferably between 1 .5 and 8 m.
• the first bearing surface radius R1 divided by the first outer diameter D1 defines a ratio advantageously comprised between 0.5 and 1.0 (“small ratio”).
• the first bearing surface S1 and the second bearing surface S2 are not very inclined with respect to the first axis X1 ( Figures 2 to 4).
• the ratio may be comprised for example between 1 .0 and 20 (“large ratio”).
• the first bearing surface S1 and the second bearing surface S2 are more inclined with respect to the first axis X1 in that case.
• both the first fixing portion 63 and the second fixing portion 67 may be approximately (+/- 15°) perpendicular to the first axis X1 .
• the second flange 54 axially protrudes from the second structural element 26 towards the first structural element 24, which helps positioning the first structural element and the second structural element with respect to each other during assembling. This also makes the welding of the first flange 52 and the second flange 54 to the first structural element 24 and the second structural element 26 easier than with a “large ratio”. However, this requires more metal in the flanges, which are longer axially than with a “large ratio”.
• the first flange 52 and the second flange 54 are for example made of stainless steel.
• first flange 52 and the second flange 54 comprise corrosion resistant coatings (not shown) known in themselves.
• the coatings advantageously define the first bearing surface S1 and the second bearing surface S2.
• the fastening system 56 advantageously extends in the interior volume 40, which helps protecting the fastening system from corrosion or potential mechanical shocks.
• the fastening system 56 may extend in the exterior volume 42.
• the fastening system 56 comprises a swivel 66 defining a first axial passage 68 for each of the bolts 58, the second flange 54 defining a second axial passage 70 for each of the bolts.
• the passage 70 (for each of the bolts) is advantageously located in the second fixing part 67.
• the bolts 58 are adapted for pressing the swivel 66 against the first flange 52, the first flange being axially sandwiched between the swivel and the second flange 54.
• the swivel 66 advantageously has a ring shape and comprises a rim 72 pressing axially against the first flange 52 toward the second flange 54.
• the second flange 54 and the swivel 66 are rotatably movable with respect to the first flange 52 around the first axis X1 , which helps aligning each of the bolts 58 with the corresponding first passage or allows rotating the second structural element 26 with respect to the first structural element 24.
• Each of the bolts 58 comprises a screw head 74 and a nut 76, the head being in the example closer to the first flange 52 or to the swivel 66 than the nut 76.
• screw head it is meant that the head 74 is not intended to move with respect to the screw.
• the head 74 may advantageously be formed by a nut.
• the bolt 58 may has two nuts, instead of one head 74 and one nut 76. A head or a nut are equivalent to each other in this respect.
• the head 74 for example defines a convex spherical surface 78 in contact with a concave spherical surface 80 defined by a washer 82, the washer being axially sandwiched between the swivel 66 and the head 74.
• the washer 82 is in plane contact with the swivel 66.
• the nut 76 defines a convex spherical surface 84 in contact with a concave spherical surface 88 defined by another washer 90, the other washer 90 being axially sandwiched between the second flange 54 and the nut 76.
• the other washer 90 is in plane contact with the second flange 54.
• the first axial passage and the second axial passage are for example cylindrical.
• the bolts 58 can be inclined with respect to the first axial passage 68 and with respect to the second axial passage 70 ( Figures 3 and 4), the washers 82, 90 remaining in plane contact with the swivel 66 and the second flange 54 respectively.
• the spherical surfaces of the bolts 58 (including their washers if any) enable the screw to make an angle different from 90° with the surfaces of the first flange 52 and the second flange 54 on which the bolts press. This advantageously allows the fastening system 56 to adapt to the fact that second axis X2 is potentially offset with respect the first axis X1 .
• the sealing system 60 is adapted for ensuring tightness of the interior volume 40 in any of the above mentioned configurations of the connection. This for example prevents water from entering the interior volume 40, and/or helps keeping the interior volume pressurized.
• the sealing system 60 is in contact with the first bearing surface S1 .
• the sealing system 60 is in contact with the second bearing surface S2.
• first bearing surface S1 is spherical allows the sealing element(s) to stay in contact with one of the first bearing surface S1 and the second bearing surface S2, even if the second axis X2 is offset with respect the first axis X1 , i.e in any of the above mentioned configurations of the connection 28.
• the sealing system 60 for example comprises an O-ring 92 extending in a groove 94 defined by the second flange 54, and pressed against the first bearing surface S1 .
• the O-ring 92 is not necessarily in contact with the second bearing surface S2 in the example.
• the groove 94 is defined by the first flange 52.
• the O-ring 92 is replaced by a flat seal.
• the shape of the groove 94 is adapted.
• connection 100 is analogous to the connection 28 shown in Figures 1 to 4. Similar elements bear the same numeral references and will not be described again. Only the differences will be described hereafter.
• the second axis X2 is intended to be aligned with the first axis X1 ( Figure 5), or offset with respect the first axis X1 ( Figure 7).
• the ratio defined by the first bearing surface radius R1 divided by the first outer diameter D1 is advantageously comprised between 1.0 and 20 (“large ratio”).
• the first bearing surface S1 and the second bearing surface S2 are more inclined with respect to the first axis X1 than in the connection.
• the second bearing surface S2 may be flat.
• the fastening system 56 does not comprise the swivel 66, shown in figures 2 to 4.
• the first axial passage 68 for each of the bolts 58 is defined by the first flange 52, advantageously by the first fixing portion 63.
• the bolts 58 are adapted for pressing the first flange 52 and the second flange 54 against each other axially.
• the nut 74 is closer to the first flange 52 than the head 74.
• a washer 102 defines the convex spherical surface 78 in contact with the concave spherical surface 80 which is defined by the washer 82.
• the washer 82 and the washer 102 are axially sandwiched between the first flange 52 and the nut 76.
• the washer 102 is in plane contact with the nut 76.
• the washer 82 is in plane contact with the first flange 52.
• a washer 104 defines the first convex spherical surface 84 in contact with the concave spherical surface 88 which is defined by the washer 90.
• the washer 90 and the washer 104 are axially sandwiched between the second flange 54 and the head 74.
• the washer 104 is in plane contact with the head 74.
• the washer 90 is in plane contact with the second flange 54.
• the sealing system 60 ( Figure 6) comprises several gadroons 106 defined by the second flange 54, and protruding axially from the second bearing surface S2.
• the sealing system 60 comprises only one gadroon.
• the gadroons 106 are defined by the first flange 52, and protrude axially from the first bearing surface S1 .
• the gadroons 106 have a length L1 comprised between 10 and 20 mm, and a thickness T 1 comprised between 1 .0 and 3.0 mm.
• connection 200 is analogous to the connection 100 shown in Figures 5 to 7. Similar elements bear the same numeral references and will not be described again. Only the differences will be described hereafter.
• the sealing system 60 comprises a first sealing member 202 and a second sealing member 204, both surrounding the first axis X1 , the second sealing member 204 extending farther away from the first axis X1 than the first sealing member 202.
• the first flange 52, the second flange 54, the first sealing member 202 and the second sealing member 204 define an intermediate volume 206.
• the second flange 54 (or as a variant the first flange 52) defines a test port 208 from the exterior volume 42 towards the intermediate volume 206 allowing to pressurize the intermediate volume. This allows performing a leak test by pressurizing only the intermediate volume 206, instead of the whole interior volume 40.
• the test port 208 connects the intermediate volume 206 to the interior volume 40.
• the first sealing member 202 and the second sealing member 204 respectively comprise O-rings 210, 212 extending in grooves 214, 216 defined by the second flange 54 (or as a variant by the first flange 52).
• connection 300 is analogous to the connection 200 shown in Figure 8. Similar elements bear the same numeral references and will not be described again. Only the differences will be described hereafter.
• Each of the first axial passage 68 and the second axial passage 70 has a plurality of successive cylindrical portions 68A, 68B, 68C, 70A, 70B, 70C with decreasing internal diameters D3, D4, D5 away from the first bearing surface S1 .
• D5 is smaller than D4 which is smaller than D3.
• Such a shape of the first axial passage 68 and the second axial passage 70 allows a larger displacement D6 of the second flange 54 with respect to the first flange 52.
• connection 400 is analogous to the connection 300 shown in Figure 9. Similar elements bear the same numeral references and will not be described again. Only the differences will be described hereafter.
• the nut 76 (in this case closer to the first flange 52) defines the convex spherical surface 78 in contact with the concave spherical surface 80 which is defined by the first flange 52.
• the head 74 (in this case closer to the second flange 54) defines the convex spherical surface 84 in contact with the concave spherical surface 88 which is defined by the second flange 54.
• connection 500 is analogous to the connection 200 shown in Figure 8. Similar elements bear the same numeral references and will not be described again. Only the differences will be described hereafter.
• Each of the first axial passage 68 and the second axial passage 70 is not cylindrical, but is frustoconical and tapered axially away from the first bearing surface S1. In other words, the first axial passage 68 and the second axial passage 70 get narrower starting from the first bearing surface S1 .
• first axial passage 68 and the second axial passage 70 allows a larger displacement of the second flange 54 with respect to the first flange 52, hence a larger potential angle a between the first axis X1 and the second axis X2.
• Each of the bolts 58 comprises only the two washers 82, 90 (like in the connection 28 represented in Figures 2 to 4).
• the nut 76 (closer to the first flange 52 in this example) defines the convex spherical surface 78 in contact with the concave spherical surface 80 defined by the washer 82, the washer 82 being axially sandwiched between the first flange 52 and the nut 76.
• the washer 82 is in plane contact with the first flange 52.
• the head 74 (closer to the second flange 52 in this example) defines the convex spherical surface 88 in contact with the concave spherical surface 88 defined by the washer 90.
• the washer 82 defines the convex spherical surface 78 in contact with the concave spherical surface 80 which is defined the first flange 52, the washer 82 being axially sandwiched between the first flange 52 and the nut 76.
• the washer 82 is in plane contact with the nut 76.
• the washer 90 defines the convex spherical surface 84 in contact with the concave spherical surface 88 defined the second flange 54, the washer 90 being axially sandwiched between the second flange 54 and the head 74.
• the washer 90 is in plane contact with the head 74 in that variant.
• the first structural element 24, the second structural element 26, and the connection 28 are provided. According to variants, the connections 100, 200, 300, 400 or 500 are provided instead of the connection 28.
• the third structural element 30, the fourth structural element 34 and the second connection 38 are also provided.
• the first flange 52 and the second flange 54 are fixed, advantageously welded, to the first structural element 24 and to the second structural element 26 respectively.
• first structural element 24 is also fixed to the third structural element 30, and the second structural element 26 is also fixed to the fourth structural element 34.
• the fastening system 56 is used in order to fasten the second flange 54 to the first flange 52, the plurality of bolts 58 pressing the first bearing surface S1 and the second bearing surface S2 against each other in order to put them in surface contact.
• the second axis X2 is aligned with the first axis X1 , or offset with respect the first axis X1 as a result of manufacturing and/or assembling tolerances.
• the sealing system 60 extends between the first flange 52 and the second flange 54 and surrounds the first axis X1 in order to seal the interior volume 40.
• the same is performed, for example simultaneously, with the second connection 38 in order to connect the third structural element 30 and the fourth structural element 34 together and to seal the second interior volume 44 they form.
• the first pre-assembled system 32 is connected to the second pre-assembled system 36, despite existing manufacturing tolerances in these pre-assembled systems, and allowing assembling tolerances between the pre-assembled systems 32, 36.
• the first structural element 24 and the second structural element 26 of the structure 12 are assembled rapidly using the bolts 58. Due to the ability of the connections 28, 100, 200, 300, 400, 500 to cope with potential manufacturing or assembling tolerances, the sealing system 60 enables perfect tightness of the interior volume 40, even if the second axis X2 is somewhat offset with respect the first axis X1. This enables fast and tight assembling, which reduces the investment costs.
• connection 26 and the second connection 38 allow connecting the first pre-assembled system 32 and the second pre-assembled 36 together rapidly, despite potential manufacturing tolerances (internal to the pre-assembled systems 32, 36) and/or assembling tolerances, while guarantying perfect tightness of the interior volume 40 and the second interior volume 44.

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• Engineering & Computer Science (AREA)
• General Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Bolts, Nuts, And Washers (AREA)
• Connection Of Plates (AREA)

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• 2023
  • 2023-09-08 EP EP23306496.3A patent/EP4520982B1/de active Active
• 2024
  • 2024-09-06 WO PCT/EP2024/074961 patent/WO2025051937A1/en not_active Ceased
  • 2024-09-06 EP EP24765657.2A patent/EP4774477A1/de active Pending
  • 2024-09-06 KR KR1020267008794A patent/KR20260069600A/ko active Pending

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