EP3141449A1 - Surveillance de profil de rail, par exemple géométrie des grenouilles - Google Patents

Surveillance de profil de rail, par exemple géométrie des grenouilles Download PDF

Info

Publication number
EP3141449A1
EP3141449A1 EP16166281.2A EP16166281A EP3141449A1 EP 3141449 A1 EP3141449 A1 EP 3141449A1 EP 16166281 A EP16166281 A EP 16166281A EP 3141449 A1 EP3141449 A1 EP 3141449A1
Authority
EP
European Patent Office
Prior art keywords
light
rail
lines
millimeter
line
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.)
Pending
Application number
EP16166281.2A
Other languages
German (de)
English (en)
Inventor
Hans Jagtenberg
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.)
Goldschmidt Holding GmbH
Przedsiebiorstwo Uslugowo Technicznegraw Sp zoo
Original Assignee
VolkerRail Nederland BV
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 VolkerRail Nederland BV filed Critical VolkerRail Nederland BV
Publication of EP3141449A1 publication Critical patent/EP3141449A1/fr
Pending legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L23/00—Control, warning or like safety means along the route or between vehicles or trains
    • B61L23/04—Control, warning or like safety means along the route or between vehicles or trains for monitoring the mechanical state of the route
    • B61L23/042—Track changes detection
    • B61L23/045—Rail wear
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L23/00—Control, warning or like safety means along the route or between vehicles or trains
    • B61L23/04—Control, warning or like safety means along the route or between vehicles or trains for monitoring the mechanical state of the route
    • B61L23/042—Track changes detection
    • B61L23/047—Track or rail movements

Definitions

  • This invention relates to an apparatus and method for monitoring wear and deformation of a turnout (also called switch and crossing) of a railway or tramway line.
  • the wear or deformation of a turnout is rather irregular and typically concentrates on particular locations, such as the stock rails, wing rails, check rails, point blades, frog and crossing.
  • Laser measurement systems e.g. measuring distance or a profile of e.g. the rail head or different track component, such as triangulation sensors (one dimension measurement) or light sectioning sensors (a two dimensional extension of the laser triangulation method, thus a two dimensional measurement), offer an accuracy in the range of several micrometers at a bandwidth of 10 kHz or even higher. Their speed is therefore sufficient to measure from moving platforms (e.g. a measuring train), but it is difficult or often impossible to guide the platform with a precision comparable to the measurement accuracy. To compensate this uncertainty of the relative position of the measurement system, from practice there is known to apply an acceleration sensor to establish a virtual reference line for the value measured.
  • a typical example known from prior art practice is the corrugation measurement of the rail head with a spectral accuracy better than 10 mu m from a running train superimposed to a vertical movement of about 10 mm.
  • the vehicle speed is preferably at least 40 or 60 km/h.
  • a rail profile monitoring system e.g. using a laser measurement system, is designed to measure the rail profile e.g. for high speed lines, but also for conventional and metro lines. In all cases top performances and accuracies must be guaranteed, e.g. by use of a CMOS or CCD camera system able to acquire up to 500 frames/sec or even higher rates at high resolution.
  • the camera could e.g. be of profile or area type.
  • Sunlight interference and blooming effects preferably need be removed, e.g. by one or more protection systems (camera technology, pulsed laser and camera acquisition synchronized, interferential filters and software filters).
  • the main object of the monitoring system is to give integrated indications to the track maintenance responsible for planning the interventions for the short and long term.
  • the system preferably is able to detect and quantify all the key WEAR PARAMETERS describing the qualitative status of the infrastructure (vertical wear, transversal wear, multi-point wear, gauge).
  • Laser light is an example of an optically coherent radiation beam.
  • the camera is an example of a light receiving unit for monitoring the focusing projection of the radiation beam on the object of interest and converts the radiation, reflected by the object, received on a measurement surface in the receiving unit into electrical signals which are entered into the connected computer.
  • a lens e.g. Fresnel lens, is located between the object ad the camera for focusing the radiation from the object on the measurement surface of the camera.
  • An object of the invention is one or more of the following: a further improvement in an attempt to sufficiently eliminate the interference of the horizontal and/or vertical oscillating movement (caused by i.a. the fact that the railway track is not perfectly straight, however in stead undulates) of the measuring train, carrying the measuring system, with the measurement results; to measure the wear or deformation of the turnout; to measure parameters of a component, such as rail, without any mechanical contact with the component and without the need to use mechanical centring devices; to acquire information relating to the actual profile of the component, its degree of wear and its vertical and transverse deformation; to be able to accurately locate the location of the measurements, particularly relative to a reference point; to effect the measurements while insensitive to oscillation and deformation of the vehicle on which the apparatus is mounted; to obtain desired results from measurements in real time; to be able to conduct the measurements at a high velocity of at least 10 or 20 km/hr of the measuring train.
  • This object is obtained by the invention such that the inaccuracy of a rail profile measurement is less than 0.1 millimeter.
  • the invention concerns a laser system and/or method designed to provide one or more of the following: emit by its one or more light sources one or more light beams, e.g. at least three or four or five light beams, designed to be projected as spaced or overlapping light points or lines or spots onto an object of interest; at least a number and preferably substantially all of these light beams are emitted such that during advancement of the measuring train these light beams are projected successively onto the same area of the object and/or their light lines successively cover the same area of the object; during train advancement the light beams and/or their light lines move along the object, one behind the other; the light beams are substantially simultaneously projected onto the object; a light line is provided by one or a plurality of separate light sources or light beams; the object of interest is of the railway track, in particular a rail, more preferably a rail part of a railway switch (also called turnout or switch and crossing) e.g.
  • a frog or check rail or point blade preferably simultaneously detect these projections by a sensor or a plurality of separate sensors; the data from these sensors is entered into a computer connected to and common to these sensors; the computer determines from this data a correction factor which is dependent from the horizontal and/or vertical oscillating movement of the measuring train and which correction factor is applied to computer calculations for a geometric feature of interest of the measured track object or an associated track object.
  • the e.g. three or four or five light lines are preferably applied in a pattern including one or more of the following (in the following "light line” also means “light point” or “light spot”): spaced in longitudinal direction of the object, e.g. rail; close spacing between two adjacent light lines at least 5 or 10 millimeter and/or not more than 50 or 80 millimeter, e.g. approximately 30 millimeter or a single sample distance; wide spacing between two adjacent light lines at least 100 or 150 or 200 or 400 millimeter and/or not more than 800 or 900 millimeter, e.g. approximately 600 millimeter; spacing between the two outermost light lines at least 600 or 800 millimeter and/or not more than 1400 or 1500 millimeter, e.g.
  • a light line approximately 1200 millimeter; a light line approximately centrally between two other light lines; two light lines with close spacing, separated from the other light lines by at least the wide spacing; two sets, each of two light lines with close spacing, preferably wherein these two sets are mutually separated by at least the wide spacing; a light line separated from the other light lines by at least the wide spacing; in case of at least five spaced light lines, these are present as two sets (which light lines could be named “reference light lines”) and one individual light line (which could be named "accuracy light line”).
  • a light line could include two or more light lines (e.g. each created by an individual light emitter, e.g. laser) which are exactly or virtually exactly mutually overlapping or precisely registered such that they are detected by the associated sensor as a single line. This is e.g. the case for the accuracy light line.
  • the individual light lines could be spaced longitudinally or differ in frequency to avoid interference, e.g. as disclosed in EP2485010 .
  • the light lines are associated with a sensor, preferably two light lines having the close spacing are associated with a single sensor, such that the sensor (e.g. an area camera) simultaneously detects both light lines, obviously wherein these light lines are projected at the light detecting part (e.g. the light sensitive matrix) of the sensor at different locations such that they are detected separately and can be discriminated by the sensor.
  • the sensor e.g. an area camera
  • the light detecting part e.g. the light sensitive matrix
  • the width of a light line (as measured in longitudinal direction of the rail) is preferably smaller than 20 or 10 or 5 millimeter and/or is substantially constant along its length.
  • the light line has preferably a green or red color.
  • the optical axis of the imaging device including a, preferably flat, light detection element, makes a fixed angle (preferably at least 10 and/or not more than 50 degrees, e.g. approximately 30 degrees) relative to the emitting direction of the associated laser device while the imaging device and the associated laser device have mutually fixed locations.
  • a light line could be associated with two or more sensors (e.g. each being a profile camera), preferably this is the light line for which the wide spacing with all the other light lines applies.
  • this accuracy light line is provided by at least two light emitters, e.g. lasers.
  • the accuracy light line is preferably associated with a group of two or three or four cameras such that in an embodiment the accuracy light line projected on a stock or running or different rail is simultaneously scanned by a group of at least two or three or four cameras.
  • the apparatus is provided with four cameras (two groups of two each) or even eight cameras (two groups of four each) in a preferred embodiment, to simultaneously monitor the accuracy light line projected on both opposite rails of the same track.
  • At least one or at least two cameras are located at both sides of the associated rail and monitor said rail obliquely from above.
  • the location transverse to the longitudinal direction of the rail and/or the angle of inclination of the optical axis of the cameras at the same side of the associated rail mutually differs, preferably by at least 10 or 20 millimeter and 10 or 20 degrees, respectively.
  • the field of vision of a camera has overlapping edges with the field of vision of an adjacent camera. More preferably, the field of vision of a camera has only partly overlap, preferably not more than 20% or 50% overlap, with the field of vision of an adjacent camera at the same (one) side of the associated running or stock or different rail; (and/) or the field of vision of a camera has substantially complete overlap with the field of vision of an adjacent camera at the same (other) side of the associated running or stock or different rail.
  • the cameras associated with the one or other running or stock rail provide a common field of vision such that simultaneously the head of the stock or running rail and associated point blade or check rail or wing rail over its complete top and complete sides and a part of the stock or running rail and associated point blade or check rail or wing rail at least 30 or 50 millimeter below the top of the head, such as part of the foot at the bottom of the relevant rail, are scanned.
  • the point blade this applies preferably both in its position bearing against the stock rail and its position moved to a maximum distance from the stock rail.
  • the cameras are preferably connected directly to the frame grabber boards of the measurement computer. In this way images are acquired that are used to calculate the rail profile, particularly of the head and fragments of foot and web.
  • the distance between a vision module and the relevant rail measures between 50 and 750 millimeter, particularly between 200 and 400 millimeter.
  • Each emitter and receiver is dedicated to a single rail; each emitter and receiver has a fixed optical axis; each emitter and receiver is supported by or suspended from a bogy or different part of the measuring train.
  • rail head wear vertical, horizontal, wear angle
  • slope of rails track gauge
  • guiding rail groove width width of the crossing nose groove
  • guiding width groove width between the switch blade and the reaction rail.
  • part of a system or method for measuring a rail profile by optical triangulation through optical detection systems operating by optical triangulation and moving along the rail at a movement speed comprising respective, preferably pairs, of light emitting devices, e.g. lasers, and optical reading devices, e.g.
  • camera's including the steps of moving said optical detection systems along said rail at a movement speed, and lighting, preferably opposite, sides of the rail through the respective light emitting lasers, for projecting against said sides respective light spots adapted to generate respective optically detectable, preferably semi, profiles, preferably combinable, to obtain a measurement of the profile of a section of the rail, and detecting said semi-profiles through the respective optical reading devices; comprising a correcting system configured for measuring spatial variations of an optical detection system by optical triangulation with respect to the object, e.g.
  • correcting the spatial position of at least one of the semi-profiles of a side through the values of the measured shifts through the correcting system comprising cameras which operate by reading the image rows in a synchronous manner; the system comprises means configured for implementing the method; triangulation also means light sectioning.
  • control module is configured for actuating the laser emitters to emit the laser radiation kept switched on by each laser emitter for a time of exposure which determines the lighting of a section of length of the object; a laser emitter-camera pair obtains an image of a semi-profile for a period of exposure; the one emitter switches off before another emitter switches on, e.g.
  • a digital camera a camera which operates at a high speed (normally greater than 400 frames per second); a camera operates to read all the image rows in a synchronous manner; a camera speed of acquisition of 700 images per second, processing 500 rows per image, for example using an FCAM DMA camera; emitters adapted to produce beams at the same wavelength; semiconductor lasers; the period of exposure varies between 0.2 and 3 milliseconds; CMOS or CCD camera; laser power between 4 and 40W;
  • the invention preferably provides a device and method for the contact less dynamic recording of the profile of a rail of a turnout to determine its condition, such as wear or deformation, comprising at least one or more of: at least one light beam from e.g. a laser device is projected onto an area of the rail facing the opposite rail and the laser device is moved along the rail and the light reflected from said area of the rail is focused onto a flat light detection element of an imaging device of which the optical axis makes a fixed angle relative to the emitting direction of the laser device while the imaging device and the laser device have mutually fixed locations such that the signal coming from the light detection element is processed in a computer processor on the basis of a triangulation procedure or light sectioning procedure to detect the distance between the imaging device and the rail, the signal from preferably at least two, three or four vision modules, which preferably form a single or virtually single projection plane directed onto the rail, is applied, means for correcting the spatial position of a measured object profile through the values of a track measuring system shift measuring means.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Machines For Laying And Maintaining Railways (AREA)
EP16166281.2A 2015-04-20 2016-04-20 Surveillance de profil de rail, par exemple géométrie des grenouilles Pending EP3141449A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL2014681 2015-04-20

Publications (1)

Publication Number Publication Date
EP3141449A1 true EP3141449A1 (fr) 2017-03-15

Family

ID=57793772

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16166281.2A Pending EP3141449A1 (fr) 2015-04-20 2016-04-20 Surveillance de profil de rail, par exemple géométrie des grenouilles

Country Status (2)

Country Link
EP (1) EP3141449A1 (fr)
NL (1) NL2016637B1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107621229A (zh) * 2017-10-23 2018-01-23 福州大学 基于面阵黑白相机的实时铁路轨道宽度测量***及方法
IT201800002756A1 (it) * 2018-02-16 2019-08-16 Easy Scander Srl Sistema di rilevamento senza contatto di profili ferroviari
CN110243326A (zh) * 2019-05-27 2019-09-17 北京全路通信信号研究设计院集团有限公司 一种铁路道岔尖轨不足位移检测装置及方法
JP2021012171A (ja) * 2019-07-09 2021-02-04 朝日航洋株式会社 軌道中心計測装置および軌道中心計測方法
CN113776457A (zh) * 2021-08-31 2021-12-10 中国铁道科学研究院集团有限公司 基于虚实结合的曲线段钢轨轮廓测量误差修正方法及装置
CN114964046A (zh) * 2022-06-21 2022-08-30 湖南科天健光电技术有限公司 钢轨廓形的测量方法、装置、***、设备及介质
CN115289991A (zh) * 2022-09-27 2022-11-04 武汉天宝耐特科技有限公司 地铁轨道形变监测方法、装置及电子设备
CN115593462A (zh) * 2022-10-17 2023-01-13 哈尔滨市科佳通用机电股份有限公司（Cn） 一种地铁轨道几何形位参数动态检测***及方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110497930A (zh) * 2019-08-06 2019-11-26 广州市奥特创通测控技术有限公司 一种全图像铁路道岔在线集成检测装置及方法

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19510560A1 (de) 1995-03-23 1996-09-26 Misoph Rotraud Meßvorrichtung zur berührungsfreien Vermessung des Schienenprofils
SE515091C2 (sv) 2000-03-07 2001-06-11 Laser Level Nordic Ab Anordning och förfarande för mätning och sammanställning av normavvikelser under användande av ett referenssystem bildat mellan en första och en andra inbördes rörlig sänd- respektive mottagningsenhet
WO2001086227A1 (fr) * 2000-05-12 2001-11-15 Tecnogamma S.P.A. Appareil laser destine au controle des rails d'une ligne de chemin de fer ou de tramway
US20020024677A1 (en) * 2000-08-23 2002-02-28 Leonard Metcalfe Method and apparatus for scanning lumber and other objects
EP1391690A1 (fr) * 2002-08-14 2004-02-25 Metris N.V. Tête de mesure optique destinée à déterminer des caractéristiques d'un objet et procédé correspondant
WO2008146151A2 (fr) 2007-06-01 2008-12-04 Mer Mec S.P.A. Appareil et procédé pour surveiller une voie ferrée
EP2165915A2 (fr) 2008-09-23 2010-03-24 VolkerRail Nederland BV Surveillance de l'aiguillage d'une voie ferrée et ligne de tramway
DE102010019618A1 (de) 2010-05-06 2011-11-10 Alstom Transport Sa Vorrichtung und Verfahren zur Bestimmung der Welligkeit von Oberflächen
EP2485010A1 (fr) 2011-02-03 2012-08-08 DMA S.r.l. Procédé de mesure d'un profil de rail par triangulation optique et système de mesure correspondant
WO2012161759A1 (fr) * 2011-05-24 2012-11-29 Board Of Regents Of The University Of Nebraska Système de vision pour obtenir une image d'un fléchissement de rail et le mesurer

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19510560A1 (de) 1995-03-23 1996-09-26 Misoph Rotraud Meßvorrichtung zur berührungsfreien Vermessung des Schienenprofils
SE515091C2 (sv) 2000-03-07 2001-06-11 Laser Level Nordic Ab Anordning och förfarande för mätning och sammanställning av normavvikelser under användande av ett referenssystem bildat mellan en första och en andra inbördes rörlig sänd- respektive mottagningsenhet
WO2001086227A1 (fr) * 2000-05-12 2001-11-15 Tecnogamma S.P.A. Appareil laser destine au controle des rails d'une ligne de chemin de fer ou de tramway
US20020024677A1 (en) * 2000-08-23 2002-02-28 Leonard Metcalfe Method and apparatus for scanning lumber and other objects
EP1391690A1 (fr) * 2002-08-14 2004-02-25 Metris N.V. Tête de mesure optique destinée à déterminer des caractéristiques d'un objet et procédé correspondant
WO2008146151A2 (fr) 2007-06-01 2008-12-04 Mer Mec S.P.A. Appareil et procédé pour surveiller une voie ferrée
EP2165915A2 (fr) 2008-09-23 2010-03-24 VolkerRail Nederland BV Surveillance de l'aiguillage d'une voie ferrée et ligne de tramway
DE102010019618A1 (de) 2010-05-06 2011-11-10 Alstom Transport Sa Vorrichtung und Verfahren zur Bestimmung der Welligkeit von Oberflächen
EP2485010A1 (fr) 2011-02-03 2012-08-08 DMA S.r.l. Procédé de mesure d'un profil de rail par triangulation optique et système de mesure correspondant
WO2012161759A1 (fr) * 2011-05-24 2012-11-29 Board Of Regents Of The University Of Nebraska Système de vision pour obtenir une image d'un fléchissement de rail et le mesurer

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107621229A (zh) * 2017-10-23 2018-01-23 福州大学 基于面阵黑白相机的实时铁路轨道宽度测量***及方法
IT201800002756A1 (it) * 2018-02-16 2019-08-16 Easy Scander Srl Sistema di rilevamento senza contatto di profili ferroviari
CN110243326A (zh) * 2019-05-27 2019-09-17 北京全路通信信号研究设计院集团有限公司 一种铁路道岔尖轨不足位移检测装置及方法
CN110243326B (zh) * 2019-05-27 2024-04-30 北京全路通信信号研究设计院集团有限公司 一种铁路道岔尖轨不足位移检测装置及方法
JP2021012171A (ja) * 2019-07-09 2021-02-04 朝日航洋株式会社 軌道中心計測装置および軌道中心計測方法
CN113776457A (zh) * 2021-08-31 2021-12-10 中国铁道科学研究院集团有限公司 基于虚实结合的曲线段钢轨轮廓测量误差修正方法及装置
CN113776457B (zh) * 2021-08-31 2023-08-08 中国铁道科学研究院集团有限公司 基于虚实结合的曲线段钢轨轮廓测量误差修正方法及装置
CN114964046A (zh) * 2022-06-21 2022-08-30 湖南科天健光电技术有限公司 钢轨廓形的测量方法、装置、***、设备及介质
CN115289991A (zh) * 2022-09-27 2022-11-04 武汉天宝耐特科技有限公司 地铁轨道形变监测方法、装置及电子设备
CN115289991B (zh) * 2022-09-27 2023-01-13 武汉天宝耐特科技有限公司 地铁轨道形变监测方法、装置及电子设备
CN115593462A (zh) * 2022-10-17 2023-01-13 哈尔滨市科佳通用机电股份有限公司（Cn） 一种地铁轨道几何形位参数动态检测***及方法

Also Published As

Publication number Publication date
NL2016637A (en) 2016-10-24
NL2016637B1 (en) 2018-08-24

Similar Documents

Publication Publication Date Title
EP3141449A1 (fr) Surveillance de profil de rail, par exemple géométrie des grenouilles
EP2165915B1 (fr) Surveillance de l'aiguillage d'une voie ferrée et ligne de tramway
US7036232B2 (en) Apparatus for monitoring the rails of a railway or tramway line
US4180322A (en) Interior measurement of enclosed spaces
JP5305603B2 (ja) 鉄道レール締結ボルト緩み検査装置
EP2485010B1 (fr) Procédé de mesure d'un profil de rail par triangulation optique et système de mesure correspondant
EA039709B1 (ru) Рельсовое транспортное средство и способ измерения участка рельсового пути
WO2015045743A1 (fr) Dispositif et procédé de mesure d'un câble de trolley
EP4079597A1 (fr) Procédé de capture et de traitement in situ et en temps réel de paramètres géométriques de lignes ferroviaires
JP5698285B2 (ja) 架線位置計測装置及び方法
CA3222381A1 (en) Debris deflection and removal method for an apparatus for gathering data from sensors oriented at an oblique angle relative to a railway track
JP6317621B2 (ja) 車両に装備された車輪の三次元形状測定方法と車両に装備された車輪の三次元形状測定装置
JP2019095228A (ja) 車輪形状測定方法
EP0736342B1 (fr) Procédé et dispositif pour mesurer les dimensions de la section transversale des profilés en acier
KR102513815B1 (ko) 자동화된 선로 이상 탐지 방법 및 그 장치
CN108088375B (zh) 一种物体相对位置检测光束接收方法及装置
KR100628351B1 (ko) 멀티라인 레이저를 이용한 차륜형상 측정장치
US11247705B2 (en) Train wheel measurement process, and associated system
CN108072325B (zh) 一种物***置确定方法及装置
KR101528766B1 (ko) 철도 차륜의 3차원 형상 측정장치
CN108088374B (zh) 一种光束切换方法及装置
CN210625573U (zh) 一种列车底面三维高精度测量***
CN108072326B (zh) 一种观测光束照射的方法及装置
CN107957260B (zh) 一种物体相对位置检测光束发送方法及装置
CN108061543B (zh) 一种物***置检测方法及***

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: 20170914

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: 20190708

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

Free format text: STATUS: EXAMINATION IS IN PROGRESS

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: PRZEDSIEBIORSTWO USLUGOWO-TECHNICZNE GRAW SP. Z O.O.

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

Free format text: STATUS: EXAMINATION IS IN PROGRESS

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: PRZEDSIEBIORSTWO USLUGOWO-TECHNICZNE GRAW SP. Z O.O.

Owner name: GOLDSCHMIDT HOLDING GMBH