EP2764909A2 - Dispositif de mélange pour cartouches bicomposants - Google Patents

Dispositif de mélange pour cartouches bicomposants Download PDF

Info

Publication number
EP2764909A2
EP2764909A2 EP14154402.3A EP14154402A EP2764909A2 EP 2764909 A2 EP2764909 A2 EP 2764909A2 EP 14154402 A EP14154402 A EP 14154402A EP 2764909 A2 EP2764909 A2 EP 2764909A2
Authority
EP
European Patent Office
Prior art keywords
mixing
feed channel
mixing device
mixing zone
tube
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Withdrawn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
EP14154402.3A
Other languages
German (de)
English (en)
Other versions
EP2764909A3 (fr
Inventor
Christian Mössnang
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.)
Chemofast Anchoring GmbH
Original Assignee
Chemofast Anchoring GmbH
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 Chemofast Anchoring GmbH filed Critical Chemofast Anchoring GmbH
Publication of EP2764909A2 publication Critical patent/EP2764909A2/fr
Publication of EP2764909A3 publication Critical patent/EP2764909A3/fr
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/12—Interdigital mixers, i.e. the substances to be mixed are divided in sub-streams which are rearranged in an interdigital or interspersed manner
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/40—Static mixers
    • B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
    • B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
    • B01F25/431—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor
    • B01F25/4314—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor with helical baffles
    • B01F25/43141—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor with helical baffles composed of consecutive sections of helical formed elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/50—Movable or transportable mixing devices or plants
    • B01F33/501—Movable mixing devices, i.e. readily shifted or displaced from one place to another, e.g. portable during use
    • B01F33/5011—Movable mixing devices, i.e. readily shifted or displaced from one place to another, e.g. portable during use portable during use, e.g. hand-held
    • B01F33/50112—Movable mixing devices, i.e. readily shifted or displaced from one place to another, e.g. portable during use portable during use, e.g. hand-held of the syringe or cartridge type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
    • B01F2101/2305—Mixers of the two-component package type, i.e. where at least two components are separately stored, and are mixed in the moment of application

Definitions

  • the present invention relates to a mixing device for two-component cartridges or similar containers with two different components according to the preamble of independent claim 1.
  • Such a mixing device comprises an inner feed channel for the first component and an outer feed channel for the second component.
  • Inner and outer feed channels are arranged coaxially with each other, with the outer feed channel enclosing the inner feed channel.
  • the outer feed channel opens directly into a first mixing zone.
  • the inner feed channel also opens into the first mixing zone via at least one outlet with an outlet opening.
  • the outlet has a deflection device for deflecting the first component radially outward.
  • the mixing apparatus further comprises a mixing tube having a second mixing zone following downstream of the first mixing zone. In the mixing tube a plurality of axially successive mixing elements are arranged in the region of the second mixing zone.
  • a mixing device of the type mentioned is, for example GB 2484694 B known.
  • the inner feed channel is delimited by a short length of pipe which is inserted into the inlet region of a nozzle which can be attached to a two-component cartridge.
  • the diameter of the short pipe section is substantially smaller than the diameter of the nozzle, so that between the nozzle wall and pipe section there is an outer channel which surrounds the inner feed channel.
  • the inner feed channel serves to supply the first component
  • the outer feed channel enclosing the inner feed channel serves to supply the second component.
  • the first component is first led out of the inner feed channel radially out of the short pipe piece.
  • the short piece of pipe includes four radially outwardly projecting semi-tubular outlets that reach up to the inner wall of the nozzle. Each of the outlets thus completely intersects the outer feed channel in the radial direction.
  • the semi-tubular outlets are open against the flow direction of the second component, which is guided through the outer feed channel.
  • the first component which flows through the inner feed channel, is deflected by the four outlets first radially outward and then in the circumferential direction and finally detected by the flow of the second component.
  • the premixed components then enter together in the second mixing zone.
  • a mixing device of the type mentioned is also off EP 2258466 A1 known.
  • This mixing device also comprises an inner feed channel, which is coaxially surrounded by an outer feed channel.
  • the inner feed channel is limited relative to the outer feed channel by a short piece of pipe.
  • the inner supply channel has four outlets, which are formed at the flow-outgoing end of the short tube piece as radially protruding extensions. All four outlets are open in the flow direction of the second component. The outlet openings of the outlets are aligned perpendicular to the axis of the two feed channels.
  • Another mixing device for two-component cartridges is out EP 2527029 A2 known.
  • the components to be mixed meet in this mixing device on a baffle plate having an upstream projecting mandrel.
  • the baffle plate has a plurality of radially projecting star arms, through which the mixing zone is segmented in the circumferential direction.
  • This mixing device also requires a relatively large number of spiral mixing elements, some with further baffle plates arranged between the spiral mixing elements. This also results in a relatively large flow resistance. Even with the out EP 2527029 A2 known mixing device, the operation is therefore relatively cumbersome.
  • Object of the present invention is to provide an improved mixing device of the type mentioned, which ensures easy operation, can be produced cheaply, is handy to handle, and provides optimal mixing of the two components.
  • a solution according to the invention is provided when the first mixing zone is formed as an annular chamber, wherein the outlet opening of the outlet aligned parallel to the axis of the feed channels and in an inner wall of the annular chamber is formed.
  • the first component is deflected radially outward before the first mixing zone and impinges on the second component in the first mixing zone substantially perpendicular to the flow direction of the second component.
  • the premixing of the two components is thereby significantly improved. Due to the improved premixing of the two components, the number of mixing elements in the second mixing zone be significantly reduced.
  • the mixing device according to the invention therefore builds shorter overall, can be produced more favorably, and still provides optimum mixing of the two components.
  • the first mixing zone in the circumferential direction is not segmented by the outlet or the outlets of the inner feed channel.
  • the outlets are not in the radial direction over the inner feed channel. There is a uniform mixing instead.
  • the greatest advantage of the mixing device according to the invention is that the number of mixing elements in the second mixing zone can be significantly reduced, whereby the flow resistance is reduced. The invention thereby provides a mixing device which can be operated effortlessly and without particularly great expenditure of force.
  • the inner feed channel is delimited by an inner tube which separates the inner feed channel from the outer feed channel, the diverter being formed by a lid of the inner tube perpendicular to the axis of the two feed channels is aligned.
  • the geometry of the mixing device according to the invention is also kept particularly simple, which allows a simple and cost-effective production.
  • the lid is preferably spaced from the flow exit end of a length of tubing defining the inner feed channel. Further, the lid is preferably circular in shape and aligned coaxially with the inner feed channel.
  • the mixing device has downstream of the outlet and in front of the second mixing zone via a second deflection device for deflecting the premixed components radially inwards.
  • the second deflection device is a stepped constriction of the flow channel arranged after the outlet.
  • the mixing of the two components can be further improved if the outer feed passage upstream of immediately before the first mixing zone is interrupted by a plurality of radially extending ribs, wherein the ribs are distributed uniformly over the circumference.
  • the mass flow of the second component conducted through the outer feed channel is divided into several strands by the ribs so that the first component can enter between these strands into the first mixing zone.
  • the inner feed channel opens into the first mixing zone via a plurality of outlets, the outlets being distributed uniformly over the circumference and each having an outlet opening.
  • the quasi-mass flow of the first component is divided into a plurality of strands which meet uniformly distributed over the circumference of the outer flow of the second component.
  • each outlet opening is aligned parallel to the axis of the feed channels.
  • the outer feed channel is interrupted by a plurality of radially extending ribs before the first mixing zone, and the inner feed channel opens into the first mixing zone via a plurality of outlets, the number of outlets corresponding to the number of ribs, and the outlets and the ribs viewed in the circumferential direction are respectively arranged in the same position.
  • optimum premixing of the two components is achieved in the first mixing zone.
  • at least 6 outlets and 6 ribs, more preferably at least 8 outlets and at least 8 ribs are provided.
  • a particularly simple construction of the mixing device according to the invention is achieved when the cover is connected via webs to the inner tube, which define the outlet openings of the outlets between them.
  • the lid in radial Completing direction with the outer circumference of the tube. It is also advantageous for the mixing of the two components, when the webs are parallel to the axis and attach to the inner circumference of the inner tube, which limits the inner feed channel. As a result, the outlet openings between the webs are set back slightly relative to the outer circumference of the inner tube, which improves the mixing of the two components.
  • the structure of the mixing device according to the invention is simplified in the event that the outer feed is interrupted immediately before the first mixing zone by a plurality of radially extending ribs, further, when the ribs are formed on the tube.
  • the mixing device is completely integrated in a nozzle which can be attached to a two-component cartridge.
  • the mixing tube is formed with the second mixing zone through the nozzle.
  • the structure of the mixing device further simplifies when a wall portion of the nozzle forms the boundary of the outer feed channel.
  • a particularly simple handling, in particular during assembly of the device according to the invention results when the mixing elements of the second mixing zone are connected to the tube, which forms the outer boundary of the inner feed channel, and are preferably made in one piece with the tube.
  • the mixing device according to the invention thus consists at best of only two parts, which are inserted into one another for mounting.
  • Ais Mischetti of the second mixing zone are preferably a plurality of axially successively arranged and alternately counter-rotating spiral mixing elements are used.
  • FIG. 1 shows a side view of a conventional two-component cartridge 2 with attached nozzle 14.
  • the nozzle 14 is formed in a conventional manner as a slightly tapered tube and screwed onto a nozzle of the two-component cartridge 2.
  • the nozzle 14 On the outer circumference, the nozzle 14 has four uniformly distributed over the circumference extending in the longitudinal stiffening ribs 16.
  • a mixing device 1 according to the invention is integrated into the nozzle 14.
  • FIG. 2 shows a longitudinal section through the in Fig. 1 shown nozzle 14 without the nozzle insert 21 shown in the following figures, which is required for the mixing device according to the invention.
  • the longitudinal section Fig. 2 clearly shows that the nozzle 14 is formed as a slightly tapered tube. At the cartridge side end, it has an internal thread 15, which serves for screwing to the two-component cartridge.
  • the thread 15 is followed by a lower cup-shaped broader section 17, which merges via a step 19 in the upper narrow section 16.
  • a plurality of ribs 20 are a plurality of ribs 20 as spacers in the direction of the thread from. The function of these ribs will be explained below.
  • the nozzle 14 is formed substantially rotationally symmetrical and therefore defines an axis 4. The two components flow substantially in the axial direction through the nozzle, wherein take place in the mixing device diverse deflections.
  • FIG. 3 also shows a longitudinal section through the nozzle 14 with a required for the inventive mixing device 1 nozzle insert 21.
  • Different views of the nozzle insert 21 are shown in the following figures. The exact function of the insert 21 will be explained in more detail with reference to the following figures.
  • the nozzle insert 21 in the lower portion 17 of the nozzle 14 defines an inner feed channel 3 and an outer feed channel 5, through which the two components are passed from the two-component cartridge into a first mixing zone 6.
  • the premixed components enter a second mixing zone 8, which extends in the nozzle shown approximately over half of the upper narrow portion 18 of the nozzle.
  • the nozzle insert 21 essentially consists of a short pipe section 12 and a plurality of axially successive and alternately oriented spiral mixing elements 9 attached thereto. All the mixing elements 9 are arranged in the second mixing zone 8 of the mixing device 1 according to the invention. In the embodiment shown are only eight provided these mixing elements. Nevertheless, a very homogeneous mixing of the two components is achieved with the mixing device according to the invention.
  • the nozzle insert 21 When the nozzle insert 21 is inserted into the nozzle 14, the previously mentioned short pipe section 12 is located in the lower wide section 17 of the nozzle 14. It essentially serves to delimit the inner feed channel 3 from the outer feed channel 5.
  • FIG. 7 shows a longitudinal section through the short pipe section 12.
  • On the outer circumference of the pipe section are eight evenly distributed over the circumference ribs 11, which, as in Fig. 8 is shown, reach up to the inner wall of the lower portion 17 of the nozzle.
  • the ribs 11 divide the outer feed channel 5 into eight strands.
  • the outer feed channel opens into an annular chamber 6. This forms the first mixing zone of the mixing device according to the invention.
  • the flow-exit-side end of the short tube section 12 is closed by a circular lid 10.
  • the cover 10 is slightly spaced from the flow outlet side end of the short tube piece 12 and connected thereto via a plurality of webs 13 extending parallel to the axis 4.
  • the mixing device as many webs are provided as ribs 11.
  • the webs 13 are also uniformly distributed over the circumference and define between them in each case an outlet opening 7 for that component which is passed through the inner feed channel.
  • the mass flow conducted through the inner feed channel 3 is deflected radially outwards due to the cover 10 through the outlet openings 7 and, in the first mixing zone 6, strikes the second component, which is passed through the outer feed channel 5 into the first mixing zone.
  • the outlet openings 7 and the ribs 11, viewed in the circumferential direction are each arranged in the same position.
  • Fig. 8 It can also be seen that the cover 10 is spaced a distance from the stepped transition 19 between the lower portion 17 and the upper portion 18 of the nozzle. It should be noted that the annular chamber 6 is not segmented in the area in front of the ribs 20 by radially extending elements in the form of ribs, webs or the like. There, where the two components meet for the first time, there is a uniform annulus, which ensures optimal mixing of the two components.
  • the first component flows through the inner feed channel 3 initially in the axial direction up to the outlet openings 7.
  • the second component also flows through the outer feed channel 5 in the axial direction to the first mixing zone 6 and also enters into the same in the axial direction.
  • the two components are premixed in the first mixing zone 6 and flow past the lid 10 in the axial direction. Due to the step-shaped transition 19 then takes place in turn a radial deflection to the inside. The radial deflection in turn follows an axial deflection in the second mixing zone 8.
  • the double deflection already leads before the second mixing zone to a further mixing of the two components.
  • a homogeneous mixing of the two components is then achieved.
  • Mixing device however, a good pre-mixing of the two components is achieved already in the first mixing zone 6, since the two components meet in the region of the first mixing zone substantially perpendicular. Therefore, in the first mixing zone, vortices are also generated which favor mixing.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
EP14154402.3A 2013-02-08 2014-02-08 Dispositif de mélange pour cartouches bicomposants Withdrawn EP2764909A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102013002290.8A DE102013002290A1 (de) 2013-02-08 2013-02-08 Mischvorrichtung für Zweikomponentenkartuschen

Publications (2)

Publication Number Publication Date
EP2764909A2 true EP2764909A2 (fr) 2014-08-13
EP2764909A3 EP2764909A3 (fr) 2017-07-12

Family

ID=50072942

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14154402.3A Withdrawn EP2764909A3 (fr) 2013-02-08 2014-02-08 Dispositif de mélange pour cartouches bicomposants

Country Status (2)

Country Link
EP (1) EP2764909A3 (fr)
DE (1) DE102013002290A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018029316A1 (fr) * 2016-08-10 2018-02-15 Ahrens Hans Joachim Mélangeur statique en deux parties, mélangeur statique carré en deux parties et mélangeur statique carré en plusieurs parties
US10293312B2 (en) * 2013-06-19 2019-05-21 Lai Huat GOI Apparatus for generating nanobubbles
EP3862074A1 (fr) * 2020-02-06 2021-08-11 Frank Wolff Dispositif de mélange pour adhésifs à deux composants

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2258466A1 (fr) 2009-06-05 2010-12-08 Ritter GmbH Système de mélange pour cartouche à deux composants
GB2484694B (en) 2010-10-20 2012-11-14 Chemfix Products Ltd Mixing extruded materials
EP2527029A2 (fr) 2011-05-25 2012-11-28 Ritter GmbH Mélangeur statique

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2688103A1 (fr) * 2009-02-13 2010-08-13 Sulzer Mixpac Ag Cartouche multielements jetable
EP2258468B1 (fr) * 2009-06-05 2012-05-16 Ritter GmbH Système de mélange pour cartouche à deux composants
DE102009031306A1 (de) * 2009-06-30 2011-01-05 Heraeus Kulzer Gmbh Einweg-Kartuschen zum Lagern und Ausbringen dentaler Zweikomponenten-Abformmassen
EP2563524B1 (fr) * 2010-04-28 2020-10-07 IPS Adhesives LLC Appareil de mélange et de distribution de plusieurs composants pouvant s'écouler

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2258466A1 (fr) 2009-06-05 2010-12-08 Ritter GmbH Système de mélange pour cartouche à deux composants
GB2484694B (en) 2010-10-20 2012-11-14 Chemfix Products Ltd Mixing extruded materials
EP2527029A2 (fr) 2011-05-25 2012-11-28 Ritter GmbH Mélangeur statique

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10293312B2 (en) * 2013-06-19 2019-05-21 Lai Huat GOI Apparatus for generating nanobubbles
WO2018029316A1 (fr) * 2016-08-10 2018-02-15 Ahrens Hans Joachim Mélangeur statique en deux parties, mélangeur statique carré en deux parties et mélangeur statique carré en plusieurs parties
EP3862074A1 (fr) * 2020-02-06 2021-08-11 Frank Wolff Dispositif de mélange pour adhésifs à deux composants

Also Published As

Publication number Publication date
DE102013002290A1 (de) 2014-08-28
EP2764909A3 (fr) 2017-07-12

Similar Documents

Publication Publication Date Title
EP2406017B1 (fr) Dispositif pour distribuer une matière de remplissage
DE102015103425B3 (de) Mischvorrichtung
EP2680959B1 (fr) Mélangeur dynamique et son utilisation
EP2755769B1 (fr) Dispositif de mélangeage
EP2369231B1 (fr) Dispositif de mélange pour un brûleur à gaz
EP3533136B1 (fr) Bague de soufflage
EP2885087B1 (fr) Dispositif de sortie
EP2764909A2 (fr) Dispositif de mélange pour cartouches bicomposants
EP2548635B1 (fr) Mélangeur dynamique doté d'un joint
EP2258468B1 (fr) Système de mélange pour cartouche à deux composants
DE102013216127B4 (de) Strömungsverdämmungselement, insbesondere zur Luftströmungsverdämmung in einem Luftkanalsystem eines Fahrzeugs
DE102009020409A1 (de) Rotordüse
EP2258466A1 (fr) Système de mélange pour cartouche à deux composants
DE102012003390B4 (de) Kartuschensystem und statischer Mischer hierfür
DE19732593C2 (de) Düse zum Herstellen eines Verzehrgutes
DE4312994C2 (de) Vorrichtung zur Verspritzung von Suspensionen, insbesondere Mörteln
EP2885088B1 (fr) Dispositif de sortie
DE3539426A1 (de) Statische mischvorrichtung fuer nieder- und hochviskose stoffe
EP3862074B1 (fr) Dispositif de mélange pour adhésifs à deux composants
DE102019132416A1 (de) Ventil und Vorrichtung zur Regelung von Drücken eines Strömungsmittels mit dem Ventil sowie Vorrichtung zur Sicherung des Ventils in dem Getriebebauteil
DE29608289U1 (de) Vorrichtung zum Mischen von Strömungsmedien
EP3774007B1 (fr) Mélangeur et procédé pour le mélange de deux composants
AT205152B (de) Selbsttätige Düse zum Zerstäuben flüssiger Stoffe unter hohem Druck und hoher Temperatur
EP3189887A1 (fr) Réacteur à cavitation destiné à traiter des substances pouvant s'écouler
EP4309799A1 (fr) Dispositif de tourbillonement d'un liquide

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

17P Request for examination filed

Effective date: 20140208

AK Designated contracting states

Kind code of ref document: A2

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

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

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

RIC1 Information provided on ipc code assigned before grant

Ipc: B01F 5/00 20060101AFI20170608BHEP

Ipc: B01F 5/06 20060101ALI20170608BHEP

Ipc: B01F 13/00 20060101ALI20170608BHEP

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

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

R17P Request for examination filed (corrected)

Effective date: 20180112

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

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

INTG Intention to grant announced

Effective date: 20210324

GRAJ Information related to disapproval of communication of intention to grant by the applicant or resumption of examination proceedings by the epo deleted

Free format text: ORIGINAL CODE: EPIDOSDIGR1

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

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

INTC Intention to grant announced (deleted)
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

INTG Intention to grant announced

Effective date: 20210928

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

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Effective date: 20220215