EP4414533A1 - Mikrotunnel mit ringförmiger dichtung zur trennung von bohrflüssigkeiten und schmierung - Google Patents

Mikrotunnel mit ringförmiger dichtung zur trennung von bohrflüssigkeiten und schmierung Download PDF

Info

Publication number
EP4414533A1
EP4414533A1 EP24153858.6A EP24153858A EP4414533A1 EP 4414533 A1 EP4414533 A1 EP 4414533A1 EP 24153858 A EP24153858 A EP 24153858A EP 4414533 A1 EP4414533 A1 EP 4414533A1
Authority
EP
European Patent Office
Prior art keywords
cylindrical body
micro
tunneling machine
ground
diameter
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP24153858.6A
Other languages
English (en)
French (fr)
Other versions
EP4414533B1 (de
Inventor
Michel CHAURAY
Frédéric Simon
Benoit CZAPLA
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Soletanche Freyssinet SA
Original Assignee
Soletanche Freyssinet SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Soletanche Freyssinet SA filed Critical Soletanche Freyssinet SA
Publication of EP4414533A1 publication Critical patent/EP4414533A1/de
Application granted granted Critical
Publication of EP4414533B1 publication Critical patent/EP4414533B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/005Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries by forcing prefabricated elements through the ground, e.g. by pushing lining from an access pit
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/06Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
    • E21D9/0635Tail sealing means, e.g. used as end shuttering
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/06Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
    • E21D9/08Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining with additional boring or cutting means other than the conventional cutting edge of the shield
    • E21D9/087Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining with additional boring or cutting means other than the conventional cutting edge of the shield with a rotary drilling-head cutting simultaneously the whole cross-section, i.e. full-face machines

Definitions

  • the present invention relates to the field of tunneling in the ground, and more specifically the construction of micro-tunnels.
  • the invention relates in particular to a micro-tunneling machine and its use.
  • micro-tunneling differs from the creation of conventional tunnels in particular by the fact that micro-tunneling uses a digging machine, called a micro-tunneler, which is driven into the ground using sinking pipes which will constitute the final structure, whereas conventional tunneling uses a tunnel boring machine which advances while resting on the segments which have been previously laid.
  • the assembly consisting of the micro-tunnel boring machine and the jacking pipes is pushed from the starting shaft by a jacking station equipped with hydraulic jacks. Once a jacking pipe is completely sunk into the ground, an additional jacking pipe is brought to the bottom of the shaft in the jacking station, between the last jacking pipe and the hydraulic jacks. The actuation of the latter therefore has the effect of exerting a thrust on the additional jacking pipe which, in turn, pushes and advances the assembly of jacking pipes and the micro-tunnel boring machine already sunk into the ground.
  • micro-tunnel made up of the succession of sinking pipes and the micro-tunnel boring machine, which advances into the ground as the digging progresses.
  • the cuttings are evacuated by a drilling fluid circulation device, this fluid being for example water or drilling mud.
  • the cutting face is pressurized so that the drilling fluid, also called sluicing fluid, also serves to maintain a confining pressure providing frontal support for the excavation.
  • the drilling fluid also called sluicing fluid
  • a lubricating fluid is injected outside the jacking pipes, in the annular space between the extrados of the jacking pipes and the ground.
  • the lubrication fluid which is injected under pressure, sometimes flows longitudinally towards the cutting module and is then sucked up by the pumps designed to suck up the excavation spoil. This phenomenon is amplified on a downward slope.
  • the suction of lubricating fluid has the disadvantage of increasing the consumption of lubricating fluid.
  • Another disadvantage is that the presence of lubricating fluid at the front of the machine makes it more difficult to control the confining pressure in the blast chamber.
  • contamination of the drilling fluid by the lubricating fluid requires treatment of the drilling fluid.
  • the document CN216518002 describes a micro-tunneling machine according to the preamble of claim 1, which is equipped with a double collar.
  • An aim of the invention is to propose a micro-tunneling machine which makes it possible to reduce the consumption of lubricating fluid while facilitating the regulation of the confinement pressure in front of the cutting module.
  • the invention achieves its aim by a micro-tunneling machine according to claim 1 in which the cutting module further comprises an annular seal located on the outer face of the cylindrical body, the diameter of the annular seal being at least equal to the diameter of the cutting head, so that the annular seal comes into contact with the ground during drilling to achieve a fluidic separation between the drilling fluid and the lubricating fluid.
  • the annular seal therefore has the effect of physically separating the lubricating fluid from the drilling fluid (marbling).
  • the annular seal has the effect of delimiting two fluidic zones, namely a drilling fluid zone and a lubrication zone containing the lubrication fluid.
  • the annular seal is sized so that, in use, it comes into contact with the ground wall surrounding the cutting module. Also, the annular seal prevents unwanted mixing of the drilling fluid and the lubrication fluid, which keeps the confining pressure stable at the cutting head and, consequently, makes it easier to control the micro-tunneling machine.
  • the lubrication operation is also improved since the lubricating fluid remains confined in the lubrication zone and is not sucked up by the sluicing pumps. As a knock-on effect, the improved lubrication reduces the thrust forces required and advantageously increases the digging efficiency.
  • the invention avoids the pollution of the drilling fluid by the lubricating fluid, thereby reducing the treatment process of the drilling fluid containing the cuttings.
  • the annular seal can be an insert that is mounted on the cylindrical body by the operator before digging. It can also be integrated into the cylindrical body at the time of manufacturing the micro-tunneling machine.
  • the annular seal is located in the front part of the cylindrical body. This has the effect of increasing the lubrication surface around the cylindrical body, which further reduces the friction forces against the ground and improves the digging efficiency.
  • the annular seal may consist of a single or multiple parts.
  • the annular seal is a flexible and/or elastic part. It is understood that the annular seal has a diameter greater than that of the cylindrical body, and at least a diameter greater than the rear portion of the cylindrical body.
  • the annular seal comprises a collar formed of a plurality of fins. It is understood that the collar preferentially surrounds the front part of the cylindrical body.
  • the fins are shaped to come into contact with the wall of the ground. They have a certain elasticity in order to adapt to the roughness of the ground. The fins can therefore deform independently of the others during the advancement of the micro-tunnel in order to maintain the contact of the annular seal against the ground over substantially its entire periphery and, consequently, ensure the fluidic separation between the drilling and lubrication fluids.
  • the fins are juxtaposed and overlap laterally at least partially two by two.
  • the lateral overlap between two adjacent fins prevents fluid from flowing between the two fins, which improves the seal between the two fluids.
  • the fins are elastically movable relative to the cylindrical body.
  • the fins are configured to be flexible enough not to disrupt the existing terrain, but rigid enough to withstand the pressure of the lubricating fluid.
  • At least one of the fins is inclined relative to the cylindrical body.
  • At least one of the fins is formed from a folded sheet metal having a base fixed to the cylindrical body and a plate forming an angle with the base.
  • the base has a hole for receiving a fixing element to the cylindrical body.
  • the internal angle between the base and the plate is greater than 90° before its insertion into the ground.
  • the plate comes into contact with the ground and pivots relative to the base to a position where the internal angle between the base and the plate is less than 90°.
  • the plate which tends to return to its initial position, is blocked in rotation by the ground. This has the effect of forcing the plate against the wall of the ground, thus ensuring a sealed contact between the plate and the ground.
  • the internal angle is of the order of 120° before its insertion into the ground.
  • the diameter of the cutting head is greater than the outer diameter of the cylindrical body.
  • the outer diameter of the cylindrical body is between 500 mm and 3,000 mm.
  • the lubricating fluid flows into the annular space located on the outer face of the cylindrical body and the land surrounding the cylindrical body.
  • the cutting head comprises a cutting wheel which is provided with cutting tools projecting radially beyond the diameter of the cylindrical body.
  • the outside diameter of the sinking pipe is less than or equal to the diameter of the cylindrical body.
  • the lubricating fluid flows into the annular space between the outer face or extrados of the sinking pipe and the ground surrounding the sinking pipe.
  • the sinking pipe comprises at least one injection orifice opening onto its outer face and cooperating with the lubricating fluid injection device.
  • the latter further comprises a lubrication ring arranged axially between the cylindrical body and the sinking pipe.
  • the invention finally relates to the use of a micro-tunneling machine according to the invention for manufacturing a micro-tunnel in a ground, said micro-tunnel being made up of a plurality of sinking pipes arranged one after the other.
  • FIG. 1 an example of an embodiment of a micro-tunneling installation 10 has been illustrated comprising a starting shaft 14 for a micro-tunneling machine 12.
  • the shaft 14 consists of a circular wall 16 made in a soil S (not illustrated here for reasons of readability).
  • a sinking station 16 equipped with sinking jacks 18 which extend in a sinking direction A.
  • a through opening 20 is provided in the circular wall 16. It is understood that the micro-tunneling machine 12 is engaged in the soil, in a direction slightly inclined relative to the horizontal, through this opening 20.
  • the micro-tunneler 12 comprises a cutting module 100 comprising a cylindrical body 102 having a diameter D1 extending axially between a rear portion 104 and a front portion 106.
  • the cutting module 100 further comprises a cutting head 108 which is located at the front of the cylindrical body 102, opposite the rear portion 104.
  • the cutting head 108 is rotatable relative to the cylindrical body 102 around the axis B of the cylindrical body.
  • the cutting head has a diameter D2 such that the diameter of the excavation made in the ground has a cylindrical shape of diameter D2.
  • the cutting head 108 comprises a cutting wheel 109 which is provided with cutting tools 111 projecting radially beyond the diameter D1 of the cylindrical body.
  • the micro-tunneling machine further comprises a lubrication ring 170 which is arranged between the cylindrical body and the first sinking pipe 120.
  • the cutting head 108 forms a felling chamber.
  • the micro-tunneling machine 12 further comprises a fluid circulation device 110 comprising means for injecting a drilling fluid F into the blasting chamber and sucking up the drilling cuttings D in the front part of the cylindrical body.
  • the drilling fluid F is a drilling mud.
  • the cutting module 100 is first lowered into the well 14, it is then driven into the ground using sinking jacks 18.
  • the micro-tunneling machine 12 further comprises at least one first sinking pipe 120 having an external diameter D4.
  • the sinking pipe is placed at the rear of the cylindrical body 102.
  • the external diameter D4 of the sinking pipe is slightly less than the diameter D1 of the cylindrical body.
  • first jacking pipe 120 and a second jacking pipe 122 disposed behind the first jacking pipe are illustrated.
  • the driving cylinders 18 are retracted and the first driving pipe 120 is lowered so as to arrange it between the rear part of the cylindrical body 102 and the driving cylinders 18. The latter are then put into operation so as to push the first driving pipe 120 in the direction A, so that the first driving pipe pushes the cutting module 100 into the ground.
  • the jacking cylinders 18 are retracted and the second jacking pipe 122 is inserted into the well so as to position it between the first jacking pipe 120 and the jacking cylinders 16.
  • the jacking operation is repeated, so that the second jacking pipe pushes the assembly consisting of the cutting module 100 and the first jacking pipe into the ground. These operations are repeated until the desired length of the micro-tunnel is obtained. At the end of the operation, the cutting module is withdrawn and the succession of jacking pipes forms the micro-tunnel in the ground.
  • a device for injecting a lubricating fluid L is provided outside the jacking pipes 120, 122.
  • the injection of the lubricating fluid is done on the extrados of the jacking pipes.
  • the injection device 130 of the lubricating fluid L comprises a reservoir 138 of lubricating fluid L and pipes 134 which connect the reservoir 138 to the various jacking pipes 120, 122, as well as to the cylindrical body.
  • the pipes 134 are connected to orifices 136 located on the peripheral wall of the jacking pipes, and also on the peripheral surface of the cylindrical body 102. These orifices 136 are better visible on the figures 1 And 3 . On the diagram of the figure 3 , only pipes supplying the first sinking pipe have been shown.
  • the lubricating fluid L is injected into the annular space between the extrados of the sinking pipes and the ground, and also between the cylindrical body 102 and the ground.
  • the diameter D2 of the cutting head 108 is greater than the external diameter D1 of the cylindrical body, so as to provide an annular space between the cylindrical body and the wall of the excavation.
  • the drilling fluid is injected into the front portion 106 of the cylindrical body 108, such that the drilling fluid flows between the cutting front 11 and the cutting head 108, and also into the annular space between the cutting head 108 and the ground.
  • the cutting module 100 further comprises an annular seal 150 which is located on the outer face 102a of the cylindrical body.
  • the diameter D3 of the annular seal 150 is at least equal to the diameter D2 of the cutting head 108 so that the annular seal 150 comes into contact with the wall P of the excavated ground during drilling so as to achieve a fluid separation between the drilling fluid F and the lubricating fluid L.
  • the drilling fluid F and the drilling fluid L do not mix. Furthermore, the lubricating fluid L is not sucked up by the circulation device and does not disturb the marinating pressure of the drilling fluid F. Furthermore, the lubricating fluid L is not polluted by the drilling fluid F.
  • the annular seal 150 is located in the front part of the cylindrical body 100.
  • the annular seal 150 comprises a collar 152 formed of a plurality of fins 154.
  • the fins 154 according to the invention have been illustrated.
  • each of the fins 154 is made up of a folded sheet metal plate having a base 158 fixed to the cylindrical body 100 and a plate 156 forming an angle ⁇ with the base.
  • the fins 154 are juxtaposed and overlap laterally partially two by two, thanks to a lateral extension 156 a of the plates 156. This lateral overlap makes it possible to improve the sealing of the annular seal 150.
  • the collar 152 extends annularly around the cylindrical body 102 so as to provide axial sealing between the space defined between the cutting head 108 and the ground on the one hand and the annular space between the cylindrical body 102 and the wall P of the ground on the other hand.
  • the fins are elastically movable relative to the cylindrical body, so as to adapt to the roughness of the ground while maintaining the seal during the advancement of the micro-tunneling machine into the ground. It can also be seen that the fins 154 are inclined relative to the cylindrical body. More precisely, the fins are inclined relative to the axis B of the cylindrical body 100.
  • the angle between the base 158 and the plate 156 is greater than 90°, of the order of 120°.
  • the plate 158 of each fin engages with the ground, which causes it to pivot relative to the base so that the angle between the base and the plate, after insertion of the cutting module into the ground, is less than 90°, as illustrated in particular in figures 3 And 6
  • the angle between the pad and the base is of the order of 45°-60°.
  • the plates which tend to return to their initial position, are pressed against the ground, which allows the seal between the collar and the ground to be maintained locally despite the roughness of the ground.
  • the initial angle between the plate could be equal to or less than 90° as long as the plate rests against the ground.
  • annular seal could also be made of a single piece, or of two half collars.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Earth Drilling (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Auxiliary Devices For Machine Tools (AREA)
EP24153858.6A 2023-02-13 2024-01-25 Mikrotunnel mit ringförmiger dichtung zur trennung von bohrflüssigkeiten und schmierung Active EP4414533B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR2301298A FR3145769B1 (fr) 2023-02-13 2023-02-13 Micro-tunnelier comportant un joint annulaire pour la séparation des fluides de forage et de lubrification

Publications (2)

Publication Number Publication Date
EP4414533A1 true EP4414533A1 (de) 2024-08-14
EP4414533B1 EP4414533B1 (de) 2025-07-23

Family

ID=86100107

Family Applications (1)

Application Number Title Priority Date Filing Date
EP24153858.6A Active EP4414533B1 (de) 2023-02-13 2024-01-25 Mikrotunnel mit ringförmiger dichtung zur trennung von bohrflüssigkeiten und schmierung

Country Status (3)

Country Link
EP (1) EP4414533B1 (de)
ES (1) ES3046663T3 (de)
FR (1) FR3145769B1 (de)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1759943B1 (de) * 1968-06-22 1971-10-28 Bade & Co Gmbh Dichtung fuer den Schildschwanz von Vortriebsschilden
DE2545020A1 (de) * 1975-10-08 1977-04-14 Peiner Masch Schrauben Verfahren und vorrichtung zur herstellung eines tunnelrohres mit mantelreibungsminderung
CN210264715U (zh) * 2019-05-22 2020-04-07 中铁十八局集团有限公司 一种岩石顶管机防沉渣装置
CN112012757A (zh) * 2020-09-15 2020-12-01 临沂市政集团有限公司 一种泥水平衡式顶管机及其在流砂地层中的施工工艺
CN216518002U (zh) 2021-12-31 2022-05-13 核工业井巷建设集团有限公司 一种防止机头返渣的顶管机
CN217872832U (zh) * 2022-08-31 2022-11-22 安徽唐兴装备科技股份有限公司 一种顶管机挡土扩孔注浆机构

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1759943B1 (de) * 1968-06-22 1971-10-28 Bade & Co Gmbh Dichtung fuer den Schildschwanz von Vortriebsschilden
DE2545020A1 (de) * 1975-10-08 1977-04-14 Peiner Masch Schrauben Verfahren und vorrichtung zur herstellung eines tunnelrohres mit mantelreibungsminderung
CN210264715U (zh) * 2019-05-22 2020-04-07 中铁十八局集团有限公司 一种岩石顶管机防沉渣装置
CN112012757A (zh) * 2020-09-15 2020-12-01 临沂市政集团有限公司 一种泥水平衡式顶管机及其在流砂地层中的施工工艺
CN216518002U (zh) 2021-12-31 2022-05-13 核工业井巷建设集团有限公司 一种防止机头返渣的顶管机
CN217872832U (zh) * 2022-08-31 2022-11-22 安徽唐兴装备科技股份有限公司 一种顶管机挡土扩孔注浆机构

Also Published As

Publication number Publication date
FR3145769B1 (fr) 2025-05-23
FR3145769A1 (fr) 2024-08-16
ES3046663T3 (en) 2025-12-02
EP4414533B1 (de) 2025-07-23

Similar Documents

Publication Publication Date Title
EP3002371B1 (de) Maschine und verfahren zur erstellung von säulen in einem boden
EP2156907B1 (de) Einrichtung und Verfahren zur Bodensanierung
EP0883731B1 (de) Kernbohrwerkzeug
EP0265344A1 (de) Verfahren zum Herstellen eines Pfahls im Boden, sowie Bohrmaschine und Vorrichtung zur Ausführung dieses Verfahrens
EP0457879B1 (de) Vorrichtung und verfahren zur reinigung eines unterirdischen bohrloches
EP1878833B1 (de) Mischgerät zur Verarbeitung eines Bodenteils
EP4414533B1 (de) Mikrotunnel mit ringförmiger dichtung zur trennung von bohrflüssigkeiten und schmierung
EP3119939B1 (de) Bohrungs- und betonierungsausrüstung zur herstellung eines betonpfahls im boden und zugehöriges verfahren
FR2947889A1 (fr) Embout d'insertion pour raccord ou analogue a faible effort d'emmanchement
EP1626129B1 (de) Maschine zum Graben eines Schlitzes und Herstellen einer Wand in diesen Schlitz
FR2597150A1 (fr) Perfectionnement aux dispositifs de forage des sols comprenant un outil de forage fixe a l'extremite d'une tige formee de deux tubes concentriques
WO1988008480A1 (fr) Procede pour installer une canalisation souterraine et installation s'y rapportant
FR2559316A1 (fr) Appareil destine a se deplacer le long d'un cable enterre
EP2206876B1 (de) Bohrkopf für Tunnelbohrmaschine
EP1495823B1 (de) Bohrvorrichtung, insbesondere mit Diamantkopf und integrierter Kühlung
FR2635799A1 (fr) Procede et dispositif pour la mise en place de canalisations souterraines
FR2832454A1 (fr) Equipement de forage de puits verticaux
EP3754154B1 (de) Maschine zum aufbohren eines mit einer porösen schicht bedeckten bodens, und entsprechendes verfahren
FR2764331A1 (fr) Machine de creusement d'un tunnel
EP3205775B1 (de) Bohrverfahren
FR3158524A1 (fr) Machine pour la réalisation d’un pieu bi-diamètre dans le sol
BE1004967A6 (fr) Vanne d'arret et son procede de construction sur une conduite.
EP1885973B1 (de) Spritzpistole für einen aus einem gemisch aus mindestens zwei lösungen hergestellten füller
FR3001250A1 (fr) Procede de forage comprenant une etape de desolidarisation de l'outil de coupe
FR2832466A1 (fr) Pompe doseuse a boisseau

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20241031

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: HK

Ref legal event code: DE

Ref document number: 40111397

Country of ref document: HK

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

RIC1 Information provided on ipc code assigned before grant

Ipc: E21D 9/087 20060101ALI20250305BHEP

Ipc: E21D 9/06 20060101ALI20250305BHEP

Ipc: E21D 9/00 20060101AFI20250305BHEP

INTG Intention to grant announced

Effective date: 20250317

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602024000312

Country of ref document: DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: FRENCH

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20250904

Year of fee payment: 3

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20250723

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 3046663

Country of ref document: ES

Kind code of ref document: T3

Effective date: 20251202

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20251124

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20250723

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 1816605

Country of ref document: AT

Kind code of ref document: T

Effective date: 20250723

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20251123

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20251023

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG9D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20250723

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20250723

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20250723

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20251024

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20250723

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20250723

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20250723

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20250723

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20251023

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20250723

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20260209

Year of fee payment: 3

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20250723

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20260114

Year of fee payment: 3

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20260119

Year of fee payment: 3

Ref country code: IT

Payment date: 20260131

Year of fee payment: 3