EP4155439A1 - Procédé et dispositif pour le nettoyage de matières fibreuses - Google Patents

Procédé et dispositif pour le nettoyage de matières fibreuses Download PDF

Info

Publication number
EP4155439A1
EP4155439A1 EP22195253.4A EP22195253A EP4155439A1 EP 4155439 A1 EP4155439 A1 EP 4155439A1 EP 22195253 A EP22195253 A EP 22195253A EP 4155439 A1 EP4155439 A1 EP 4155439A1
Authority
EP
European Patent Office
Prior art keywords
cleaning
rollers
cleaning roller
fiber material
roller
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
EP22195253.4A
Other languages
German (de)
English (en)
Inventor
Dyrk Saaro
Daniella SONNENSTATTER
Petr Cevona
Tobias WOLFER
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.)
RIETER AG
Original Assignee
Maschinenfabrik Rieter AG
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 Maschinenfabrik Rieter AG filed Critical Maschinenfabrik Rieter AG
Publication of EP4155439A1 publication Critical patent/EP4155439A1/fr
Pending legal-status Critical Current

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G9/00—Opening or cleaning fibres, e.g. scutching cotton
    • D01G9/06—Opening or cleaning fibres, e.g. scutching cotton by means of toothed members
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H3/00—Spinning or twisting machines in which the product is wound-up intermittently, e.g. mules
    • D01H3/02—Details
    • D01H3/26—Driving or stopping arrangements not otherwise provided for; Locking motions ; Control of machines
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G9/00—Opening or cleaning fibres, e.g. scutching cotton
    • D01G9/14—Details of machines or apparatus
    • D01G9/16—Feeding arrangements
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
    • E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
    • E02B3/10—Dams; Dykes; Sluice ways or other structures for dykes, dams, or the like
    • E02B3/102—Permanently installed raisable dykes
    • E02B3/104—Permanently installed raisable dykes with self-activating means
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B7/00—Barrages or weirs; Layout, construction, methods of, or devices for, making same
    • E02B7/20—Movable barrages; Lock or dry-dock gates

Definitions

  • the invention relates to a method and a device for cleaning fiber material.
  • short-staple spinning especially when natural fibers such as cotton or mixtures containing natural fibers are spun, it is necessary to clean the fibrous material before it is fed to a spinning machine.
  • So contains z.
  • Raw cotton typically contains between 3% and 8% impurities such as sand, dust, husks and other foreign objects. These impurities should be removed as completely as possible, with as few good fibers as possible being separated from the raw cotton and the remaining fibers being damaged as little as possible by the cleaning process. In principle, however, it is true that the higher the degree of cleaning, both the loss of good fibers and the deterioration of the fibers increase.
  • Fibres such as raw cotton
  • Fibres are usually delivered to the spinning mill in pressed bales.
  • the unwanted dirt is firmly embedded in the raw cotton.
  • a large number of cleaning devices or cleaning machines arranged one after the other are provided in the spinning preparation lines that are customary today. Cleaning devices of the type described here have several rotating cleaning rollers.
  • the opening, also called opening, of the fiber material transported along a cleaning roller is brought about by the mechanical action of the driven cleaning roller on the fiber material. This mechanical action also removes dirt from the fiber material.
  • the opened or dissolved fibrous material, together with the dirt now loosely contained therein, is guided past cleaning elements arranged in a bowl-like manner on the cleaning roller. Part of this fiber material is discharged to the outside through the cleaning elements, for example by gravity, centrifugal force or by an air flow.
  • this part of the material removed by the cleaning elements Fibrous material, which is also called waste, contains a large proportion of dirt and trash. However, the tailings also contain a certain proportion of good fibers, which is undesirable but unavoidable.
  • Devices of the same generic type which have a plurality of cleaning rollers and cleaning elements, are disclosed, for example, in CH 682 672 A5 or the DE 44 39 564 B4 .
  • Three successive cleaning rollers are fitted therein, each of which has a separating knife on its circumference.
  • the fibrous material is guided in a snake-like manner around the cleaning rollers, which are driven in opposite directions, i.e. the fibrous material is transported via the lower half of the circumference of the first cleaning roller to the second cleaning roller and then via the upper half of the circumference of the second cleaning roller to the third cleaning roller, on which the fibrous material is in turn transported via the lower Circumference half is performed.
  • the EP 1 866 468 B1 a cleaning machine with a single cleaning roller, which has a plurality of grate bars on its periphery for the removal of waste.
  • grate bars can only be used in a lower half of the circumference of a cleaning roller.
  • cleaning elements with active suction of the separated waste are necessary.
  • a disadvantage of the known designs of cleaning machines is that, due to the serpentine fiber transport over the sequence of cleaning rollers (cleaning stages), no uniform cleaning elements are permitted in the cleaning machine. This leads to transport systems of different complexity having to be provided for the differently arranged cleaning elements.
  • the object of the invention is therefore to create a device which enables a simple and standardized structure of cleaning stages, which allows simple transport of the separated waste and minimizes contamination of the device.
  • a method and a device for cleaning fiber material are proposed with at least two cleaning rollers, each with a cleaning roller axis and cleaning devices arranged opposite the cleaning rollers.
  • the cleaning rollers have carriers on their circumference and are arranged one behind the other in such a way that the fibrous material is taken over by a cleaning roller from the respective preceding cleaning roller by its carrier. All cleaning rollers are driven in the same direction and the fibrous material is thus transported from one cleaning roller to the next on the respective lower half of the circumference of the cleaning rollers.
  • the fibrous material is guided past the cleaning devices, with waste in the fibrous material falling through the cleaning devices into a collection funnel.
  • the cleaning rollers are driven in the same direction, they all rotate in the same direction and the fibrous material is transported over the lower half of the roller by the drivers after it has been taken over by the preceding cleaning roller until it is delivered to a subsequent cleaning roller.
  • the cleaning devices are only arranged in the lower areas of the cleaning rollers in all cleaning rollers.
  • the fiber material is fed in front of the first cleaning roller in such a way that the fiber material is picked up by the first cleaning roller from the fiber material feed and is guided over the lower half of the first cleaning roller to the subsequent second cleaning roller.
  • Systems known from the prior art such as shafts with corresponding metering rollers, conveyor belts with feed rollers or also feed rollers with associated feed troughs, can be used for feeding the fiber material.
  • the last cleaning roller transfers the cleaned fiber material into a chute or directly into a conveying channel of a pneumatic conveyor which transfers the cleaned fiber material to the next processing stage, for example a card.
  • Pneumatic conveyors are usually arranged in the transition from the lower to the upper half of a cleaning roller, with the fibrous material being removed directly from the carriers of the cleaning roller by an air stream.
  • At least three cleaning rollers are provided, each with a cleaning roller axis and cleaning devices arranged opposite the cleaning rollers. This achieves far better cleaning of the fiber material than with just two cleaning rollers.
  • the outlet from the first cleaning device which is associated with the first cleaning roller viewed in a fiber material transport direction, is guided into a separate collection funnel.
  • This has the advantage that the waste separated in a first cleaning stage, which is usually interspersed with only a few good fibers, can be disposed of separately.
  • the waste from the further cleaning stages which usually contains more good fibers due to finer adjustment of the cleaning devices, can be fed into a recycling process.
  • a peripheral speed of a first cleaning roller differs from a peripheral speed of the following second cleaning roller.
  • the different peripheral speeds result in a different transport speed of the fiber material. It can thus be achieved that the fiber material is accelerated in the transition from the first cleaning roller to the second cleaning roller and is thus pulled apart. As a result, a covering of fiber material on a surface of the second cleaning roller becomes less than a covering of a surface of the first cleaning roller, which contributes to an increase in the cleaning effect.
  • the fibrous material is guided along the cleaning rollers by casings in peripheral areas of the cleaning rollers that are not occupied by cleaning devices. This avoids uncontrolled contamination of the device by fibers, fiber components or debris falling off the surfaces of the cleaning rollers. Due to the rotation of the cleaning rollers and the resulting centrifugal forces acting on the fiber material, parts are thrown off the surface of the cleaning roller. In this case the casing helps to hold the parts to the cleaning roller and to achieve ejection via the cleaning devices in the lower half of the circumference.
  • a device for carrying out the method has at least two cleaning rollers, each with a cleaning roller axis and cleaning devices arranged opposite the cleaning rollers.
  • the cleaning rollers have drivers on their circumference.
  • the cleaning rollers are driven in the same direction and the cleaning elements are each arranged in a lower half of the circumference of the cleaning rollers.
  • At least three cleaning rollers are preferably provided, each with a cleaning roller axis and cleaning devices arranged opposite the cleaning rollers. This achieves far better cleaning of the fiber material than with just two cleaning rollers.
  • cleaning devices in the form of simple grates consisting of a large number of grate bars can advantageously be used.
  • Grates are segments that typically enclose a quarter to half of the circumference of the cleaning roller like a shell. It is also possible to assign several grates to a cleaning roller.
  • Grates consist of several individual, angular grate bars that ultimately form a shell. Today mainly grate bars with a triangular cross-section are used. Grates have the advantage that the impurities (departure) or dirt particles, which are transported outwards by rotation of the cleaning roller on the fiber material acting centrifugal forces and through the grate from thrown away by the cleaning roller. As a result, the impurities are separated from the fibrous material, with the fibrous material being transported by the cleaning roller past the grate bars and the impurities being separated from the fibrous material by the edges of the grate bars. The impurities separated from the fiber material in this way fall away from the cleaning roller and are collected in a container in the machine base.
  • the drivers are preferably designed as teeth of a set applied to the cleaning roller. This design is particularly advantageous for the second and third cleaning rollers in the fiber material transport direction, since at this point the fiber material is already finely broken up into small units and can be transported better with the teeth of a set, since individual fibers can also be transported with the help of sets.
  • the first cleaning roller has a smaller diameter than the following cleaning rollers.
  • the design of the first cleaning roller with a smaller diameter results in a lower peripheral speed at the same speed of the cleaning rollers.
  • a corresponding gear stage can thus be dispensed with in order to achieve different circumferential speeds. This also has the advantage that the fiber material can be taken over from an upstream fiber material feed at a low speed.
  • the cleaning rollers are each installed in self-supporting cleaning modules. This means that individual cleaning rollers can be removed or replaced as modules. An exchange of modules favors a quick change of defective or to be revised cleaning roller or cleaning devices. On the one hand, the downtimes of the device can be minimized in this way and, on the other hand, it is possible to adapt the device to a different type of cleaning performance requirement by simply exchanging cleaning modules.
  • the distance between the cleaning rollers and one another can be adjusted.
  • the distance between the cleaning rollers it is possible to precisely adjust the transfer of the fiber material between the cleaning rollers and to match it to the fiber material to be processed. If the distance is set unfavorably, the fiber material is either damaged or the fiber material is insufficiently taken over.
  • the cleaning roller axes of the at least two rear cleaning rollers, seen in the fiber transport direction, are preferably arranged in a horizontal plane and these two cleaning rollers have the same diameter. With this arrangement, the surfaces of the cleaning roller can be optimally utilized and the fiber material is transferred from the second cleaning roller to the third cleaning roller in the respective lower half of the circumference of the cleaning rollers.
  • the cleaning devices are formed from a large number of cleaning elements in the form of separating knives.
  • Separating knives are known from the prior art and, compared to a grate, have the advantage that they are built closer to the fiber material transported through the cleaning roller. As a result, the contamination or dirt particles are largely stripped off the fiber material and not only the contamination thrown away is caught. The impurities separated out in this way can also be discharged into a collection container.
  • a combination of different designs of the cleaning devices is also conceivable.
  • the cleaning device is designed as an insert, the insert being designed in such a way that it can be removed or inserted from outside the cleaning module in the direction of the cleaning roller axis.
  • This has the advantage that the cleaning device can be replaced without having to intervene in the machine itself.
  • the individual cleaning elements, in the case of separating knives, or all cleaning elements together, in the case of grate bars, can be removed.
  • the cleaning device can thus be prepared or serviced outside of the device in a simple manner and then exchanged as a coherent element without causing a lengthy interruption to operations.
  • FIG 1 shows a schematic representation of a first embodiment of a device according to the invention.
  • the device comprises two cleaning rollers arranged one behind the other, a first cleaning roller 4 with a first cleaning roller axis 5 and an associated first cleaning device 6 and a second cleaning roller 7 with a second cleaning roller axis 8 and an associated second cleaning device 9.
  • the cleaning rollers 4 and 7 associated cleaning devices 6 and 9 are arranged in a lower peripheral half of the cleaning rollers 4 and 7, respectively.
  • the cleaning rollers 4 and 7 are arranged with their cleaning roller axes 5 and 8 in a common horizontal plane 20 .
  • the cleaning devices 6 and 9 shown are designed as grates with a large number of grate bars 16 .
  • the fibrous material is introduced into the device with a fibrous material feed 3; a fibrous material feed 3 with a pair of feed rollers is shown as an example.
  • the cleaned fiber material 17 is transferred from the second cleaning roller 7 to a conveying channel 18 of a pneumatic conveying system.
  • Fiber feed 3 and conveying channel 18 are not part of the device according to the invention and can be provided in a variety of designs according to the known prior art, what has no influence on the construction and function of the device according to the invention.
  • FIG 2 shows a schematic representation of a second embodiment of a device according to the invention
  • figure 3 shows a schematic and enlarged representation of the same device.
  • the device comprises three cleaning rollers arranged one behind the other in a fiber material transport direction 19, a first cleaning roller 4 with a first cleaning roller axis 5 and an associated first cleaning device 6, a second cleaning roller 7 with a second cleaning roller axis 8 and an associated second cleaning device 9, and a third cleaning roller 10 with a third cleaning roller axis 11 and an associated third cleaning device 12.
  • the cleaning devices 6, 9 and 12 associated with the cleaning rollers 4, 7 and 10 are each arranged in a lower half of the circumference of the cleaning rollers 4, 7 and 10.
  • the upper half of the circumference of the cleaning rollers 4, 7 and 10 is provided with a casing 15, so that the portion of fiber material 1 which does not get from one cleaning roller 4 or 7 to the next cleaning roller 7 or 10 is held on the corresponding cleaning roller 4 or 7 and again over the cleaning device 6 or 9 out.
  • the cleaning rollers 4, 7 and 10 are arranged with their cleaning roller axes 5, 8 and 11 in a common horizontal plane 20.
  • the cleaning devices 6, 9 and 12 shown are designed as grates with a multiplicity of grate bars 16.
  • the cleaning rollers 4, 7 and 10 are provided with carriers 13 on their surfaces which are responsible for the transport of the fiber material 1.
  • the drivers 13 are in figure 2 as clothings applied to the cleaning rollers 4, 7 and 10.
  • the fiber material 1 is transported by the cleaning rollers 4 , 7 and 10 in a fiber transport direction 19 from the first cleaning roller 4 to the third cleaning roller 10 .
  • the fiber material 1 is introduced into the device with a fiber material feed 3; a fiber material feed 3 with a pair of feed rollers is shown as an example.
  • the cleaned fiber material 17 is transferred from the third cleaning roller 10 to a conveying channel 18 of a pneumatic conveying system. Fibrous feed 3 and conveying channel 18 are not part of the device according to the invention and can be provided in a variety of designs according to the known prior art, which has no influence on the construction and function of the device according to the invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
EP22195253.4A 2021-09-28 2022-09-13 Procédé et dispositif pour le nettoyage de matières fibreuses Pending EP4155439A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH70320/21A CH719003A1 (de) 2021-09-28 2021-09-28 Verfahren und Vorrichtung zur Reinigung von Fasergut.

Publications (1)

Publication Number Publication Date
EP4155439A1 true EP4155439A1 (fr) 2023-03-29

Family

ID=85279336

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22195253.4A Pending EP4155439A1 (fr) 2021-09-28 2022-09-13 Procédé et dispositif pour le nettoyage de matières fibreuses

Country Status (3)

Country Link
EP (1) EP4155439A1 (fr)
CN (1) CN115874432A (fr)
CH (1) CH719003A1 (fr)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1078833A (en) * 1912-09-28 1913-11-18 Cas W Cook Machine for cleaning and feeding cotton.
DE514565C (de) * 1929-04-19 1930-12-13 Max Oscar Schroeder Reinigungsmaschine fuer Fasergut
US2014673A (en) * 1932-11-04 1935-09-17 Technik & Invest Ag Carding cleaning, opening, and like machine for textile fibers
US2421478A (en) * 1943-12-21 1947-06-03 Murray Co Fiber conditioner
CH682672A5 (de) 1990-01-23 1993-10-29 Truetzschler Gmbh & Co Kg Vorrichtung zum Oeffnen und Reinigen von Fasergut, insbesondere Baumwolle.
US6038741A (en) * 1998-04-15 2000-03-21 Winn; William E. Uni-grid and multi-faceted cleaner for a cotton gin
US6212738B1 (en) * 1997-02-07 2001-04-10 Rieter Elitex A.S. Method and device for fibre production
DE4439564B4 (de) 1994-11-05 2005-05-04 Trützschler GmbH & Co KG Vorrichtung zum Reinigen und Öffnen von in Flockenform befindlichem Fasergut, z. B. Baumwolle, synthetischem Fasergut u. dgl.
EP1866468B1 (fr) 2005-04-07 2009-06-10 Maschinenfabrik Rieter Ag Barreau de grille

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1680978A (en) * 1927-10-13 1928-08-14 James C Garner Cotton-cleaning apparatus
DE1064396B (de) * 1955-03-15 1959-08-27 Whitin Machine Works Maschine zum OEffnen und Reinigen von Fasergut
DE3333618A1 (de) * 1983-09-17 1985-04-18 Trützschler GmbH & Co KG, 4050 Mönchengladbach Abdeckung fuer die walze einer spinnereivorbereitungsmaschine
DE10063861B4 (de) * 2000-12-21 2014-08-28 Trützschler GmbH & Co Kommanditgesellschaft Vorrichtung an einer Spinnereivorbereitungsmaschine, z. B. Reiniger, Öffner, Karde o. dgl. zur Erfassung von ausgeschiedenem Abfall

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1078833A (en) * 1912-09-28 1913-11-18 Cas W Cook Machine for cleaning and feeding cotton.
DE514565C (de) * 1929-04-19 1930-12-13 Max Oscar Schroeder Reinigungsmaschine fuer Fasergut
US2014673A (en) * 1932-11-04 1935-09-17 Technik & Invest Ag Carding cleaning, opening, and like machine for textile fibers
US2421478A (en) * 1943-12-21 1947-06-03 Murray Co Fiber conditioner
CH682672A5 (de) 1990-01-23 1993-10-29 Truetzschler Gmbh & Co Kg Vorrichtung zum Oeffnen und Reinigen von Fasergut, insbesondere Baumwolle.
DE4439564B4 (de) 1994-11-05 2005-05-04 Trützschler GmbH & Co KG Vorrichtung zum Reinigen und Öffnen von in Flockenform befindlichem Fasergut, z. B. Baumwolle, synthetischem Fasergut u. dgl.
US6212738B1 (en) * 1997-02-07 2001-04-10 Rieter Elitex A.S. Method and device for fibre production
US6038741A (en) * 1998-04-15 2000-03-21 Winn; William E. Uni-grid and multi-faceted cleaner for a cotton gin
EP1866468B1 (fr) 2005-04-07 2009-06-10 Maschinenfabrik Rieter Ag Barreau de grille

Also Published As

Publication number Publication date
CH719003A1 (de) 2023-03-31
CN115874432A (zh) 2023-03-31

Similar Documents

Publication Publication Date Title
DE69214829T2 (de) Brechvorrichtung
CH622033A5 (fr)
EP1929075B1 (fr) Dispositif pour le traitement de fibres sur le tambour d'une carde
DE69210827T2 (de) Ausrichtungsvorrichtung
CH648872A5 (de) Kardierwerk.
DE4039773A1 (de) Vorrichtung zum oeffnen und reinigen von fasergut, insbesondere baumwolle
WO2007019716A1 (fr) Dispositif de nettoyage pour une machine textile
DE3711640C2 (fr)
EP0006970B1 (fr) Dispositif de séparation de débourrure de coton provenant d'une machine de nettoyage de coton conventionnelle en fibres réutilisables et déchets
EP1929076B2 (fr) Dispositif pour traiter des fibres sur le tambour d'une carde
EP3184676B1 (fr) Installation de traitement de fibres ainsi que procédé d'ouverture et de mélange de matière fibreuse dans une installation de traitement de fibres
DE69211142T2 (de) Trennvorrichtung für Fasern und Pflanzenreste
EP2310561B1 (fr) Élément de travail sur une machine de traitement de fibres
EP1866468B2 (fr) Barreau de grille
EP4155439A1 (fr) Procédé et dispositif pour le nettoyage de matières fibreuses
EP3693498B1 (fr) Garniture de chapeau pour un chapeau marchant d'une carde
DE2712650C2 (de) Vorrichtung zum Ausscheiden von Verunreinigungen aus Fasergut, insbesondere Baumwolle
EP4155441A1 (fr) Machine de nettoyage
EP4155440A1 (fr) Entrée de fibres pour une machine de nettoyage
CH674024A5 (fr)
DE2634768C2 (de) Vorrichtung zum Ausscheiden von Verunreinigungen aus Fasergut, insbesondere Baumwolle
EP4303349A1 (fr) Procédé de fonctionnement d'un poste de filage d'un métier à filer et métier à filer
EP3431641A1 (fr) Dispositif de nettoyage
DE69417255T2 (de) Karde eines tandemkardentyps mit feststehenden kardiereinheiten unterhalb der kardiertrommel
DE20104778U1 (de) Abführen von Abfall

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

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: 20230928

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

RAP3 Party data changed (applicant data changed or rights of an application transferred)

Owner name: RIETER AG