EP3543459A1 - Dispositif et procédé de décoffrage d'un tube de tunnel - Google Patents

Dispositif et procédé de décoffrage d'un tube de tunnel Download PDF

Info

Publication number
EP3543459A1
EP3543459A1 EP18162942.9A EP18162942A EP3543459A1 EP 3543459 A1 EP3543459 A1 EP 3543459A1 EP 18162942 A EP18162942 A EP 18162942A EP 3543459 A1 EP3543459 A1 EP 3543459A1
Authority
EP
European Patent Office
Prior art keywords
formwork
shuttering
tunnel
elements
concrete
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.)
Withdrawn
Application number
EP18162942.9A
Other languages
German (de)
English (en)
Inventor
Reiner Kern
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.)
Kern Tunneltechnik SA
Original Assignee
Kern Tunneltechnik 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 Kern Tunneltechnik SA filed Critical Kern Tunneltechnik SA
Priority to EP18162942.9A priority Critical patent/EP3543459A1/fr
Priority to PCT/EP2019/053978 priority patent/WO2019179705A1/fr
Publication of EP3543459A1 publication Critical patent/EP3543459A1/fr
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
    • E21D11/04—Lining with building materials
    • E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
    • E21D11/04—Lining with building materials
    • E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
    • E21D11/105—Transport or application of concrete specially adapted for the lining of tunnels or galleries ; Backfilling the space between main building element and the surrounding rock, e.g. with concrete

Definitions

  • the present invention relates to a method and a device for shuttering a particular circular tunnel tube.
  • the tunnel tube may also have other cross-sectional areas, such as ellipsoidal or rectangular.
  • shuttering devices are used for the shuttering of tunnels, which have shuttering elements with a cylinder-segment-like formwork surface. The shuttering surfaces of the shuttering elements are arranged facing a tunnel wall and then the space between the shuttering surface of the shuttering elements and the tunnel wall is cast with concrete.
  • a tunnel tube is provided with a formwork in the prior art.
  • One problem with potting the concrete is that bubbles trapped in certain locations, particularly in the floor area of the tunnel tube, rise in the concrete and are then visible on the surface of the formwork. Such bubbles can be eliminated only with great effort, so that either bubbles remain in the concrete, which then rise to the surface or for degassing of the concrete in the area an extremely high cost must be operated.
  • At least one formwork part in particular in the lower region of the formwork device, is arranged as a permanent formwork facing the tunnel wall.
  • the formwork part is integrated as a permanent formwork with the concrete connected and thus forms the surface of the formwork in particular in the lower part of the tunnel tube.
  • the formwork part can thus be prefabricated under favorable conditions in a factory and is thus free from any inclusions or air bubbles.
  • the formwork part may for example consist of a UHPC concrete (ultra-high performance concrete). In the finished tunnel formwork thus forms this Formwork part in an area, in particular the floor area, the surface of the tunnel formwork.
  • this formwork part is very high-quality in production, thus, even in difficult-to-handle areas, such as the bottom area a formwork with a bubble-free surface is achieved, and the problem of bubbles or inclusions especially in the lower part of the tunnel tube does not matter because the Surface of the formwork is formed by the formwork part.
  • the formwork part is preferably formed according to the shape of the tunnel tube as a circular segment-shaped part which covers a certain angle section in the bottom region of the tunnel tube, for example 5 to 90 °, in particular 8 to 45 °, in particular around 10 ° to 25 °.
  • the first possibility is to connect the formwork part to the e.g. the formwork element facing the tunnel floor, so that when casting the area between the tunnel wall or tunnel floor and formwork element, the formwork part connects with the cast concrete and after removal of the formwork elements, the formwork part forms the formwork of the tunnel in the bottom area.
  • the formwork part itself as formwork element, so that e.g. in the bottom region of the tunnel tube, the formwork part itself forms a formwork element, which forms in connection with the other formwork elements in the scope of the tunnel tube a vollumflindliche formwork device, so that the tunnel tube can be boarded in the full circle.
  • a circular shape is optional; elliptical tunnel shapes or even rectangular tunnel cross sections can also be produced by the invention.
  • the formwork part is lowered to its end position with a vacuum lifting device, whereupon the formwork part is held in position by the formwork device relative to the formwork elements. Subsequently, the gap between the formwork elements or the formwork part and the tunnel wall is potted with concrete, wherein an intimate connection between the formwork part and the concrete is formed. Thereafter, the formwork elements are removed and the formwork part forms then in particular in the bottom area a surface having the component of the tunnel formwork.
  • the formwork part in particular made of UHPC concrete can handle very well despite a weight of several 100 kg to tons and solve by removing the vacuum.
  • the vacuum lifting device preferably has a large-area vacuum contact surface, so that already comparatively low Sufficient vacuum to achieve the required suction force.
  • a vacuum contact surface of 1 m 2 for example, a pressure of 0.1 bar is sufficient to lift a formwork part weighing 1 ton.
  • the invention also relates to a shuttering device for shuttering a tunnel tube, which comprises a support structure for supporting a plurality of shuttering elements of the shuttering device.
  • the shuttering device is designed in particular as a circular shuttering device with a round, in particular circular cross-section.
  • the formwork elements in particular sector formwork elements, cover at least part of the circumference of the tunnel, placed against one another, and are supported on the support structure temporarily, that is to say during the formation of the tunnel formwork.
  • the formwork device contains a lower formwork part as permanent formwork, which is held in position by the support structure and / or at least one adjoining formwork element during the formation of the formwork, so that preferably the surface of the formwork part facing the tunnel interior is in contact with the formwork surface of the formwork elements facing the tunnel wall flees.
  • the formwork part is designed to intimately connect with the concrete during casting of the tunnel tube, thereby forming part of the tunnel formwork.
  • the formwork part thus forms a part of the formwork device during the casing of the tunnel tube, while it forms part of the formwork after completion of the formwork.
  • At least one of the formwork elements preferably all formwork elements comprises a fixed portion and at least one movable portion which is movable relative to the fixed portion between a closed mold position and an open mounting position, in particular pivotable, wherein in the formwork position, the shuttering surfaces of the fixed and movable portion aligned.
  • a shuttering device formed from such formwork elements can be easily mounted by the movement of the corresponding movable portions to form a closed formwork and moved from the formwork position again by moving the movable sections in a mounting position, from which the formwork elements can be detached from the formed tunnel formwork.
  • each formwork element in the circumferential direction on a fixed portion and at its two opposite ends in each case at least one movable portion.
  • the two are always in juxtaposed formwork elements opposite movable sections of two adjacent formwork elements facing each other and can be easily solved by opposing movement of each other.
  • the movable section of at least one formwork element in particular sector formwork element, designed to support the formwork part in its formwork position towards the tunnel center, thereby avoiding that after the filling of concrete in the space between the formwork part and the tunnel wall, the formwork part pushed inward by the concrete.
  • the formwork part can also be held in its formwork position by the supporting structure of the formwork device.
  • the support structure preferably has hydraulic telescopic struts, by means of which the formwork elements and / or the formwork elements and the formwork part can be moved in the direction of the tunnel wall and away from it.
  • the telescopic struts are preferably towards the center of the tunnel tube through a support, e.g. supported the tunnel machine.
  • the support structure has a lifting device to move the formwork part to its formwork position.
  • a lifting device can be designed in particular as a vacuum lifting device, which allows a relatively easy way a releasable transporting the partially heavy formwork parts in a simple manner.
  • the formwork part is designed as a prefabricated UHPC concrete part, which can be produced with high quality and non-porous in a factory before mounting in the tunnel tube.
  • This formwork part forms after completion of the formwork a very high quality surface part of the tunnel, preferably the tunnel floor after the completion of the shuttering process.
  • the formwork part preferably covers the tunnel floor towards a sector of 5 to 90 °, in particular 7 to 45 °, in particular 10 to 25 °, preferably by 10 °. In this way, a very high quality pore-free tunnel floor is formed, which is important for the further work in the tunnel as well as for the end use of the tunnel.
  • the sector formwork elements or the sector formwork element in the floor area are preferably replaced by the formwork part, so that the formwork part in the floor area itself forms a formwork element.
  • the formwork elements are connected at their edges facing each other via joints or connectable so as to build a coherent formwork, which can be easily assembled but also degraded again.
  • the joints may also be formed by bolts, e.g. after positioning the shuttering elements in their shuttering position are inserted into aligned holes of their connecting sections, whereby the shuttering elements are interconnected to form a coherent formwork.
  • the joint thus formed can be released by pulling the bolts, so that the formwork elements can be handled separately before and after the production of the formwork.
  • the formwork device is preferably arranged on the rear side of a tunneling machine with a propulsion device and a tunneling milling head held on the propulsion device, so that the formwork can be carried out directly after tunneling, of course at defined propulsion distances of e.g. 2 to 10 m. After the shuttering, the tunnel is safely accessible and accessible for further work.
  • the supporting structure of the formwork device is held by the tunneling machine, in particular the propulsion device, so that it can be supported centered in the straight milled tunnel tube. Therefore, in addition to the already necessary tunneling machine no additional support for the support structure in the tunnel tube needed to center the formwork arranged in the tunnel, without being supported on the tunnel wall.
  • the formwork elements or the formwork elements and the formwork part form a full circle, so that according to the invention a complete tunnel tube can be manufactured.
  • the formwork part is arranged in the lower sector of the formwork device, where the highest stress is present and / or where the highest demands are made on the surface condition of the tunnel wall.
  • the formwork part has a lower thickness than the tunnel formwork to be created.
  • the formwork part can be backfilled with concrete on its outside facing away from the tube and thus form an integral part of the tunnel formwork.
  • At least two formwork elements are hinged together and therefore can be easily mounted on the site.
  • formwork elements can be one or more parts.
  • Shuttering element sector shuttering element
  • Shuttering device formwork arrangement
  • Shuttering Device Circular Shuttering Device
  • Tunnel tube - tunnel wall - tube - wall of tunnel tube
  • Formwork - tunnel formwork
  • Fig. 1 shows a tunnel tube 10, in which by a circular formwork device 12 a full formwork is to be formed.
  • the circular formwork device 12 includes a support structure 14 carried by a tunneling machine, for example, on which a plurality of shuttering elements 16a, 16b, 16c, 16d are circumferentially abutted against each other, so that four formwork elements 16a to 16d form a closed circuit for completely shuttering the tube 10 in one Make operation.
  • Each formwork element 16a to 16d has a certain length in the axial direction of the tunnel, for example 1 to 3 m, so that a plurality of formwork elements 16a to 16d can be arranged in the axial direction one behind the other according to the length of the tunnel tube to be boarded.
  • the formwork elements 16a to 16d are positioned with their wall of the tunnel tube 10 facing formwork surface 30 in a constant distance as possible to the wall of the tunnel tube 10 and the intervening cavity is filled by concrete pumps with concrete.
  • a formwork part 18 which is held on the lower formwork element 16d.
  • this formwork part 18, which is preferably also made of UHPC concrete, connects with the poured concrete and forms the bottom surface of the tunnel formwork 20 after removal of the formwork device 12.
  • FIG. 2 A detail of the floor area Fig. 1 is in Fig. 2 shown. Shown here is the situation after filling the concrete. It can be seen the wall of the tunnel tube 10 with the lower formwork element 16d and the two lateral formwork elements 16a and 16c and the formwork part 18, which has entered into an intimate connection with the concrete formwork 20 concrete, wherein the upwardly facing surface of the formwork part 18 with the other surface of the concrete formwork 20 is aligned. In this way, a very high quality tunnel formwork is created with relatively little effort, any remaining inclusions or bubbles in the concrete in the lower area below the formwork part does not affect the visual appearance and performance characteristics of the tunnel wall in the bottom area.
  • the Fig. 3 to 5 show once again the sequence of a manufacturing process of a tunnel tube of a circular formwork device according to the Fig. 1 and 2 ,
  • each of the formwork elements 16a to 16d consists of a central fixed portion 22, at the outer ends of which in each case a movable portion 24, 26 is articulated via joints 25, 27 pivotally.
  • Each of the sector form elements 16a to 16d is constructed in this way.
  • the middle fixed portions 22 are connected via support receptacles 17 with the support structure 14, which includes hydraulic support cylinder 28 through which the sector shuttering elements 16a to 16d can be moved towards each other or away from each other by means of the support receptacles 17 of their fixed portions 22, ie in the direction on the wall of the tunnel tube 10 or away from it.
  • Fig. 3 shows the circular formwork device 12 after the central positioning in the tunnel tube, for example on a tunneling machine.
  • the sector form elements 16a to 16d then become, as shown in FIG Fig. 4 is shown, moved outward, where the movable portions 24, 26 are pivoted about the joints 25, 27 in their formwork position in which they are aligned in the circumferential direction with the central fixed portion 22. In this way, a coherent formwork full circle is formed. Between the movable portions 24, 26 facing sector formwork elements 16a to 16d, an inclined abutment surface 29 is formed, which is inclined relative to the corresponding adjacent shuttering surface at an angle of 25 to 60 °, in particular at an angle of 45 °, resulting in a better tightness between brings the movable portions 24, 26 of the adjacent sector shuttering elements 16a - 16d with it.
  • Fig. 4 shows the situation already after the filling of the concrete, wherein the formwork part 18 firmly abuts against the formwork surface 30 of the lower formwork element 16d, so that the surface of the formwork part 18 after removal of the formwork elements 16a to 16d, as shown in FIG Fig. 5 is shown aligned with the surface 34 of the formwork part 18.
  • the formwork part 18 thus remains after removal of the circular formwork device 12 as an integral part of the concrete formwork 20 in the tunnel tube 10.
  • a very high-quality and non-porous floor area is formed by the formwork part 18, especially in the much used floor area of the tunnel.
  • Fig. 6 to 8 show an alternative embodiment of the invention, in which the formwork member 18 itself forms a lower formwork element and thus covers the bottom sector of the tunnel in a sector of about 20 to 40 °.
  • the circular formwork device 40 off Fig. 6 includes a support structure 42 with a vacuum lifting device 44, which has a vacuum suction surface 46 in order to suck the formwork part 18 over a large area.
  • the circular formwork device 40 further includes in the circumferential direction of the tunnel tube 10 three adjacent formwork elements 48a to c (the non-imaged region is mirror-inverted), namely two lateral formwork elements 48a, 48c and an upper formwork element 48b, which are preferably pivotally connected to each other via hinges 49.
  • the hinges 49 may also be formed by bolts which are inserted into aligned holes of their connecting portions after the positioning of the formwork elements 48a, 48b.
  • the joint can be released by pulling the bolts, so that the formwork elements 48a, b can be handled separately before and after the production of the formwork.
  • the two lateral formwork elements 48a, 48c each have at their lower edge a movable portion 50, which, as it is in Fig. 7 can be seen, with a pressure member 51 rests against the upper side of the formwork part 18 and thus the formwork part 18 is supported towards the inside of the tunnel.
  • the formwork part 18 is supported on the supporting structure 42 preferably at two points by vertical support elements 52, 54 that can be extended in length relative to one another.
  • Fig. 8 shows the cross section after the casting of the gap between the shuttering surfaces 30, the formwork elements 48a to 48c and the formwork part 18 and the wall of the tunnel tube 10, wherein the thus formed tunnel wall 20 is formed in its bottom region to the tunnel center through the formwork part 18.
  • the formwork part 18 thus functions in this embodiment during the manufacture of the tunnel tube as a lower formwork element, which cooperates with the three other formwork elements 48 a to 48 c of the circular formwork device 40.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Lining And Supports For Tunnels (AREA)
EP18162942.9A 2018-03-20 2018-03-20 Dispositif et procédé de décoffrage d'un tube de tunnel Withdrawn EP3543459A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP18162942.9A EP3543459A1 (fr) 2018-03-20 2018-03-20 Dispositif et procédé de décoffrage d'un tube de tunnel
PCT/EP2019/053978 WO2019179705A1 (fr) 2018-03-20 2019-02-18 Procédé et dispositif de décoffrage d'une galerie de tunnel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP18162942.9A EP3543459A1 (fr) 2018-03-20 2018-03-20 Dispositif et procédé de décoffrage d'un tube de tunnel

Publications (1)

Publication Number Publication Date
EP3543459A1 true EP3543459A1 (fr) 2019-09-25

Family

ID=61731630

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18162942.9A Withdrawn EP3543459A1 (fr) 2018-03-20 2018-03-20 Dispositif et procédé de décoffrage d'un tube de tunnel

Country Status (2)

Country Link
EP (1) EP3543459A1 (fr)
WO (1) WO2019179705A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111238423A (zh) * 2020-03-05 2020-06-05 屈静清 一种轴承外圈同轴度的检测装置
CN113187515A (zh) * 2021-05-28 2021-07-30 福州大学 以装配式uhpc结构为底模的隧道二次衬砌及其施工方法
US11408283B2 (en) * 2018-06-22 2022-08-09 Sointek S.R.L. Formwork for the production of concrete articles

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112761676A (zh) * 2021-02-04 2021-05-07 岳阳市公路桥梁基建总公司 一种uhpc隧道衬砌结构及其施工方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2264054A (en) * 1940-09-04 1941-11-25 Blaw Knox Co Method and apparatus for handling tunnel lining forms
DE2550030B1 (de) * 1975-11-07 1977-03-31 C. Baresel Ag, 7000 Stuttgart Wandernde schalung zum einsatz fuer den tunnel- oder stollenbau
DE3811585A1 (de) * 1988-04-07 1989-10-19 Stetter Gmbh Verfahren und vorrichtung zur verarbeitung von moertel und beton im tunnel- und stollenbau
JP2002168096A (ja) * 2000-12-04 2002-06-11 Penta Ocean Constr Co Ltd 鋼製セグメントの二次覆工法
US20120121337A1 (en) * 2010-09-20 2012-05-17 Richardson George David Systems and methods for providing a concrete-reinforced bore

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2264054A (en) * 1940-09-04 1941-11-25 Blaw Knox Co Method and apparatus for handling tunnel lining forms
DE2550030B1 (de) * 1975-11-07 1977-03-31 C. Baresel Ag, 7000 Stuttgart Wandernde schalung zum einsatz fuer den tunnel- oder stollenbau
DE3811585A1 (de) * 1988-04-07 1989-10-19 Stetter Gmbh Verfahren und vorrichtung zur verarbeitung von moertel und beton im tunnel- und stollenbau
JP2002168096A (ja) * 2000-12-04 2002-06-11 Penta Ocean Constr Co Ltd 鋼製セグメントの二次覆工法
US20120121337A1 (en) * 2010-09-20 2012-05-17 Richardson George David Systems and methods for providing a concrete-reinforced bore

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11408283B2 (en) * 2018-06-22 2022-08-09 Sointek S.R.L. Formwork for the production of concrete articles
CN111238423A (zh) * 2020-03-05 2020-06-05 屈静清 一种轴承外圈同轴度的检测装置
CN113187515A (zh) * 2021-05-28 2021-07-30 福州大学 以装配式uhpc结构为底模的隧道二次衬砌及其施工方法

Also Published As

Publication number Publication date
WO2019179705A1 (fr) 2019-09-26

Similar Documents

Publication Publication Date Title
EP2145061B1 (fr) Système de coffrage de plancher à décoffrage automatique de la banche intérieure
WO2019179705A1 (fr) Procédé et dispositif de décoffrage d'une galerie de tunnel
DE102007017812A1 (de) Baugerät, Mäkler und Verfahren zur Montage des Mäklers am Baugerät
EP2480735A1 (fr) Dispositif de décoffrage
EP3572198B1 (fr) Coffrage central pour un système de coffrage destiné à bétonner un corps de cloche
DE102016008822A1 (de) Mobilkran mit verstellbarer Ballastaufnahmevorrichtung
EP1347120B1 (fr) Dispositif de coffrage et de décoffrage
EP2910687A1 (fr) Dispositif et procédé de fabrication d'un tunnel présentant plusieurs tronçons de tunnel
DE102014005642A1 (de) Verfahren zum Herstellen einer Gabione und Korb-Grundgerüst
DE2645910C2 (de) Schalung zur Errichtung trichter- oder kegelförmiger Betonbauten
DE102013011173A1 (de) Verfahren zur Montage eines Krans sowie Anlenkschuss, Teleskopausleger und Kran
DE2458486B2 (de) Zerlegbare Schalung und Anlage zur Herstellung eines Betonformsteins für den Wasserbau
DE3115181C2 (fr)
DE102010046650A1 (de) Betonflächenfertiger
EP4069919A1 (fr) Coffrage
DE2046903A1 (de) Verfahren zum Herstellen eines Glocken korpers fur größere Bauzellen und Vornch tung zum Ausfuhren des Verfahrens
DE2805016C3 (de) Verfahren und Batterieschalung zur Herstellung von Stahlbetonfertigteilen auf der Baustelle
DE2808644C3 (de) Vorrichtung zum Gießen von Betonbauelementen
EP3697982B1 (fr) Segment de poteau à double paroi
DE2104632C3 (de) Verfahren und Vorrichtung zur Herstellung von gepreßten Formstücken
DE102007059067B4 (de) Mobile Sprunganlage
DE842708C (de) Montagebauverfahren
EP3529020A1 (fr) Dispositif et procédé pour produire d'un seul tenant un module formant un espace, lequel module présente trois éléments latéraux et un élément formant fond et/ou un élément formant couvercle et module formant espace de ce type
DE2844953C2 (de) Tunnelvortriebsschild mit nachschleppbarer Schalung zum Einbringen einer Ortbetonauskleidung
DE19846984A1 (de) Vorrichtung zum Herstellen von Wandelementen

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 MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

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: 20200228

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 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: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20220429

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

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20220910