WO2021223954A1 - Scheibenfilter und sektoren fuer scheibenfilter - Google Patents
Scheibenfilter und sektoren fuer scheibenfilter Download PDFInfo
- Publication number
- WO2021223954A1 WO2021223954A1 PCT/EP2021/059172 EP2021059172W WO2021223954A1 WO 2021223954 A1 WO2021223954 A1 WO 2021223954A1 EP 2021059172 W EP2021059172 W EP 2021059172W WO 2021223954 A1 WO2021223954 A1 WO 2021223954A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- sector
- bolt
- stop
- sectors
- guide
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/15—Filters with filtering elements which move during the filtering operation with rotary plane filtering surfaces
- B01D33/21—Filters with filtering elements which move during the filtering operation with rotary plane filtering surfaces with hollow filtering discs transversely mounted on a hollow rotary shaft
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/15—Filters with filtering elements which move during the filtering operation with rotary plane filtering surfaces
- B01D33/21—Filters with filtering elements which move during the filtering operation with rotary plane filtering surfaces with hollow filtering discs transversely mounted on a hollow rotary shaft
- B01D33/23—Construction of discs or component sectors thereof
Definitions
- the invention relates to a sector for a disc filter for separating liquid from a suspension, comprising at least one filter element, radially extending longitudinal sides, a radially inner peripheral side, a radially outer peripheral side and a locking device.
- the invention also relates to a disc filter for separating liquid from a suspension, comprising a shaft and sectors, the individual sector being connected to the shaft via a sector connection and adjacent sectors being connectable via a locking device.
- Disk filters are typically used to dewater a suspension, on the one hand the liquid is separated from the suspension by the filter element and on the other hand the solids from the suspension are enriched on the filter element with the formation of a filter cake.
- the filter cake is first built up on the filter element with separation of the liquid and finally the solids are thrown off the filter element in a discharge area.
- the sectors are aligned as precisely as possible on the circumference of the disc filter in order, for example, to enable the solid matter to be ejected effectively.
- the sectors often have to be manipulated when operating disc filters, e.g. when changing the filter element.
- the adjacent and interconnected sectors have to be separated, which is time-consuming and poses a process risk, since loose fastening material such as screws, nuts, etc., can very easily fall into the disc filter trough and cause problems in subsequent parts of the plant or processes .
- AT 503524 B1 describes a disc filter and sectors for a disc filter, guides with a U-shaped profile are arranged on the outwardly facing longitudinal edges of adjacent sectors and the adjacent sectors are positively connected to one another with the aid of a sliding connecting element.
- the aim of the invention is a sector for a disc filter which allows a quick and reliable connection with neighboring sectors and also an uncomplicated alignment of the sector on the circumference.
- the locking device comprises a bolt, a first stop, a second stop, a guide and a receptacle, the bolt being movable in the guide, one end of the bolt being movable against the first stop and against the second stop and wherein the receptacle is arranged in the region of the first longitudinal side and the guide is arranged in the region of the second longitudinal side.
- the locking device designed in this way allows safe operation, since loose parts are completely dispensed with and all components of the locking device are connected to the sector.
- the bolt is connected to the sector via the guide and can be moved and secured in the guide, since one end of the bolt is designed so that it can only be moved in the area between the first stop and the second stop, the bolt in this The area is secured against failure by the guide.
- the first stop can be implemented, for example, by a projection attached to the sector, the projection restricting the movement of one end of the bolt. Such a projection can be realized simply by a screw attached to the sector.
- a favorable embodiment of the sector is characterized in that the locking device is arranged radially outside the filter element on the radially outer circumferential side.
- the sectors typically have a sector connection on the radially inner circumferential side for connection to the shaft of the disc filter. For optimal alignment of adjacent sectors on the circumference, it is also advantageous to arrange the locking device on the radially outer circumferential side of the sector.
- Another favorable embodiment of the sector is characterized in that the guide and the receptacle are oriented in the direction of the radially outer circumferential side and the bolt in the guide can be moved in the direction of the radially outer circumferential side.
- the guidance of a first sector and the inclusion of a second sector are aligned, whereby an optimal alignment of adjacent sectors on the circumference can be achieved by inserting the bolt guided on the first sector into the receptacle of the adjacent sector.
- a particularly favorable embodiment of the sector is characterized in that the second stop is formed by the guide. This allows the Complexity of the locking device can be further reduced. Since the bolt is guided in the guide and therefore the bolt is enclosed by the guide, it is sufficient for one end of the bolt, which is movable between the first stop and the second stop or the guide, to be designed so that it is not in the leadership can be introduced.
- the bolt comprises a bolt and a bolt head
- the bolt head forms one end of the bolt
- the bolt head is arranged between the first stop and the guide, the bolt being guided in the guide.
- the bolt head allows the bolt to be moved only between the first and second stop in a simple manner, the bolt head having a larger diameter than the bolt. It is advantageous if the guide forms the second stop. In the case of a cylindrical design of the bolt, it is advisable to design the guide in the form of a sleeve.
- the aim of the invention is also a disc filter which allows a quick and reliable connection of adjacent sectors and also an uncomplicated alignment of the sectors on the circumference.
- the bolt can be moved in the guide of the first sector, one end of the bolt being movable against the second stop of the first sector, whereby the bolt can be introduced into the receptacle of the adjacent second sector and the first sector and the adjacent second sector are connected, or one end of the bolt can be moved against the first stop of the first sector, whereby the bolt from the receptacle of the adjacent second sector is executable and the first sector and the adjacent second sector are separated.
- the invention does not have any loose parts, ie even when the adjacent sectors are separated, the components of the locking device are securely connected to the sectors.
- the invention also allows the sectors to be precisely aligned on the circumference, since the locking device allows the sectors to be aligned on the circumference.
- the bolt When it is inserted into the receptacle of the adjacent second sector, the bolt is advantageously held in the receptacle with a force fit, as a result of which the first sector and the second sector are connected in a force fit manner.
- a frictional connection between The latch and the receptacle can easily be implemented by means of a corresponding fit or press fit.
- the bolt is driven into the receptacles of the second sector, for example by striking a hammer at one end of the bolt, the sectors being aligned with one another and at the same time connected to one another in a non-positive manner.
- the frictional connection of the bolt in the receptacle ensures, in particular, that the bolt is securely held in the receptacle during operation.
- the bolt is moved or knocked, for example, out of the receptacle in the direction of the first stop.
- An advantageous embodiment of the disc filter is characterized in that the sector connection for connecting the sector to the shaft of the disc filter is designed as a rotary attachment and in particular as a bayonet lock. Individual sectors can thus be easily assembled or disassembled on site, in particular since, according to the invention, a very simple separation of the sectors from one another is also realized.
- a design as a rotary attachment also allows the individual sectors to be easily separated from one another during expansion by means of the rotary movement.
- the rotary attachment between the individual sectors and the shaft is designed in such a way that the sectors are locked to the shaft in their operating position in which they are connected to the adjacent sectors, whereas they are preferably locked in an angular position deviating therefrom at an angle between 45 ° and 90 °, to the circumferential direction, can be removed from the shaft. This quickly creates sufficient space between the individual sectors and simplifies assembly.
- the individual sectors comprise at least one alignment element, the alignment element being arranged in the region of the longitudinal side of the sector and the optimal distance between adjacent sectors on the radially outer circumferential side being adjustable via the alignment element.
- the locking device according to the invention allows an exact alignment of the sectors on the circumference, in that the locking device allows the sectors to be aligned on the circumference.
- the alignment element also ensures the optimal or correct distance between adjacent sectors on the circumference. When inserting the bolt into the adjacent guide with a force-fit connection, it is important to find the optimal or ensure correct spacing between sectors. By implementing only a single alignment element, a minimum distance between adjacent sectors on the circumference can effectively be ensured, since the one alignment element prevents the sectors from coming closer to one another.
- An advantageous embodiment of the disc filter is characterized in that a first alignment element is arranged in the area of the first longitudinal side of the sector and a second alignment element is arranged in the area of the second longitudinal side of the sector, and the alignment elements are used to determine the optimal distance between adjacent sectors on the radial outer peripheral side is adjustable.
- the alignment elements are used to determine the optimal distance between adjacent sectors on the radial outer peripheral side is adjustable.
- the alignment element of the adjacent second sector can be brought into a stop with the alignment element of the first sector with a rotary movement of the second sector against the first sector.
- the precisely aligned arrangement of the sectors to one another can then be achieved using the locking device according to the invention.
- the alignment elements are designed as projections and / or recesses on the radially outer circumferential sides.
- the alignment elements are L-shaped with a first and a second leg, the first leg of the alignment element is arranged on the radially extending longitudinal side of the first sector and the second leg is arranged on the radially extending longitudinal side of the adjacent second sector is assigned.
- the alignment elements allow a minimum distance as well as a maximum distance between adjacent sectors to be set easily. A correct distance between the sectors is set, for example, when the second leg of the alignment element of the first sector is adjacent to the second Sector touched on the long side.
- the interlocking of the assigned alignment elements also establishes a maximum distance between the sectors, since when the sectors are driven apart, the alignment elements prevent the sectors from being further driven apart.
- the allocation of the alignment elements allows the sectors to pivot into one another optimally, the first leg of the first alignment element being arranged on a first side of the sectors and the first leg of the second alignment element being arranged on a second side of the sectors.
- Fig. 1 shows a disc filter according to the prior art.
- Fig. 2 shows several sectors of a disc filter according to the prior art.
- Fig. 3 shows the connection of adjacent sectors with a locking device according to the prior art.
- Fig. 4 shows the connection of adjacent sectors with a locking device according to the invention.
- Fig. 5 shows two adjacent sectors with a locking device according to the invention in the open state.
- Fig. 6 shows two adjacent sectors with a locking device according to the invention in the closed state.
- the 1 shows a disc filter 1 for separating liquid from a suspension according to the prior art, individual sectors 2 being connected to the shaft 9 via a sector connection 8.
- the sectors 2 comprise at least one filter element 3, radially extending longitudinal sides 4, 5, a radially inner peripheral side 6, a radially outer peripheral side 7 and a locking device 10 (not shown).
- the liquid can be sucked out of the suspension into the individual sector 2 and further through the sector connection 8 into the shaft 9, wherein the shaft 9 can be designed as a hollow shaft.
- 2 shows several sectors 2 of a disc filter 1 according to the prior art, the sector 2 being connected to the shaft 9 on the radially inner circumferential side 6 via a sector connection 8.
- the individual sector 2 further comprises at least one filter element 3, radially extending longitudinal sides 4, 5, a radially outer circumferential side 7 and a locking device 10.
- Fig. 3 shows the connection of adjacent sectors 2 with a locking device 10 according to the prior art.
- the locking device 10 comprises on the radially outer circumferential side 7 a first tab on a first sector 2 and a second tab on the adjacent sector 2, the first and second tabs being connected via a nut-screw connection.
- the tabs are typically welded to the sectors 2 and are clamped between the screw and the nut.
- the brackets are usually milled components and are therefore complex to manufacture.
- the nut-screw connection has to be dismantled, which is time-consuming and carries the risk of loose parts (screw, nut) in the disc filter 1 - e.g. into the filter trough (not shown) - and cause problems in the disc filter 1 in subsequent process steps.
- the locking device 10 comprises a bolt 11, a first stop 12, a second stop 15, a guide 13 and a receptacle 14, the bolt 11 being movable in the guide 13 and one end of the bolt 11 being movable against the first stop 12 and against the second stop 15.
- the receptacle 14 is arranged in the area of the first longitudinal side 4 of the sector 2 and the guide 13 in the area of the second longitudinal side 5.
- the first stop 12 is simply implemented by a screw attached to the sector 2.
- the second stop 15 is formed by the guide 13.
- the bolt 11 is shown as a bolt 20 with a bolt head 21, the bolt head 21 forming one end of the bolt 11 and being arranged between the first stop 12 and the second stop 15 designed as a guide 13, the bolt 20 in the guide 13 is led.
- Adjacent sectors 2 can be moved via the locking device 10 on the radially outer circumferential side 7 with one in the guide 13 of the first sector 2 Bolt 11 connected, whereby by moving one end of the bolt 11 against the second stop 15 of the first sector 2, the bolt 11 can be inserted into the receptacle 14 of the adjacent second sector 2 and thus the first sector 2 and the adjacent second sector 2 are connected .
- the individual sectors 2 also include an alignment element 17, 18 in the region of the longitudinal sides 4, 5. The alignment element 17, 18 allows the optimum spacing between adjacent sectors 2 on the radially outer circumferential side 7 to be set.
- Fig. 5 shows two adjacent sectors 2 with a locking device 10 according to the invention in the open state, wherein the bolt 11 comprises a bolt 20 and a bolt head 21, the bolt head 21 forms one end of the bolt 11, the bolt head 21 between the first stop 12 and the second stop 15 of the first sector 2 formed by the guide 13 is arranged, the bolt 20 being guided in the guide 13 and one end of the bolt 11 or the bolt head 21 being in contact with the first stop 12 of the first sector 2 .
- the first stop 12 is simply implemented by a screw attached to the sector 2.
- the bolt 11 is arranged in FIG. 5 outside the receptacle 14 of the adjacent second sector 2.
- the first sector 2 and the adjacent second sector 2 are separated.
- the sectors 2 are connected to the shaft 9 (not shown) via sector connections 8 (not shown), the sector connections being designed as rotary fasteners. In this way, the adjacent sectors 2 can be rotated with respect to one another, or they can assume an angular position that deviates from one another.
- Fig. 6 shows two adjacent sectors 2 with a locking device 10 according to the invention in the closed state.
- the locking device 10 is arranged on the radially outer circumferential side 7.
- the bolt 11 is guided as a bolt 20 with bolt head 21 in the guide 13 of the first sector 2, one end of the bolt 11 - ie the bolt head 21 - being in contact with the second stop 15 designed as a guide 13, the bolt 11 in the receptacle 14 of the adjacent second sector 2 is inserted, whereby the adjacent sectors are connected.
- the bolt 11 is advantageously connected to the receptacle 14 in a non-positive manner.
- Two alignment elements 17, 18 are also shown.
- the first alignment element 17 is arranged in the area of the first longitudinal side 4 of the sector 2 and the second alignment element 18 in the area of the second Long side 5 of sector 2 is arranged.
- the alignment elements 17, 18 are L-shaped with a first and a second leg.
- the first leg of the alignment element is arranged on the radially extending longitudinal side of the sector 2 and the second leg is assigned to the radially extending longitudinal side of the adjacent sector 2.
- the optimal distance between adjacent sectors 2 on the radially outer circumferential side 7 can be set via the alignment elements 17, 18.
- the two alignment elements 17, 18 allow both a minimum distance and a maximum distance to be set between the adjacent sectors 2.
- the alignment elements 17, 18 also allow a quick initial alignment if the sectors 2 are connected to the shaft 9 via a rotary attachment, since the alignment element of the sector 2 to be aligned is brought into abutment with the alignment element of the adjacent sector 2, which is already aligned in the circumferential direction, with a rotary movement and can be aligned.
- the present invention offers numerous advantages. A particularly quick assembly or disassembly of the sectors and also a simple connection and separation of adjacent sectors on the circumference is possible.
- the invention further allows an improved alignment of the sectors in the circumferential direction, the alignment also being possible particularly quickly by means of the alignment elements according to the invention in connection with a rotary fastening of the sectors.
- the increased operational reliability of the locking device according to the invention is particularly advantageous, since loose parts are dispensed with and all components of the locking device are securely connected to the sector when adjacent sectors are connected or separated.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtration Of Liquid (AREA)
- Packaging For Recording Disks (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
- Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202180034011.XA CN115551611A (zh) | 2020-05-06 | 2021-04-08 | 盘式过滤器和用于盘式过滤器的扇形部 |
BR112022020645A BR112022020645A2 (pt) | 2020-05-06 | 2021-04-08 | Filtro de disco e setores de filtro de disco |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ATA50385/2020A AT522597B1 (de) | 2020-05-06 | 2020-05-06 | Scheibenfilter und sektoren für scheibenfilter |
ATA50385/2020 | 2020-05-06 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2021223954A1 true WO2021223954A1 (de) | 2021-11-11 |
Family
ID=73727353
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2021/059172 WO2021223954A1 (de) | 2020-05-06 | 2021-04-08 | Scheibenfilter und sektoren fuer scheibenfilter |
Country Status (5)
Country | Link |
---|---|
CN (1) | CN115551611A (de) |
AT (1) | AT522597B1 (de) |
BR (1) | BR112022020645A2 (de) |
CL (1) | CL2022003034A1 (de) |
WO (1) | WO2021223954A1 (de) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3692181A (en) * | 1971-03-04 | 1972-09-19 | Envirotech Corp | Novel clamping device for sectors of a rotary disc filter |
GB2000040A (en) * | 1977-06-20 | 1979-01-04 | Simonson G | Filters |
AT503524B1 (de) | 2006-05-09 | 2008-05-15 | Andritz Ag Maschf | Scheibenfilter und sektoren für scheibenfilter |
CN204543736U (zh) * | 2015-02-15 | 2015-08-12 | 中信重工机械股份有限公司 | 一种用于盘式过滤机扇形板的固定装置 |
CN205613131U (zh) * | 2016-03-22 | 2016-10-05 | 中信重工机械股份有限公司 | 一种用于立盘过滤机扇形板夹的装卸装置 |
CN209548874U (zh) * | 2019-01-31 | 2019-10-29 | 洛阳欧诺机械有限公司 | 一种立盘过滤机扇盘安装结构 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1774044A (en) * | 1925-10-28 | 1930-08-26 | Ernest J Sweetland | Filter casing and process of operating the same |
US4762748A (en) * | 1986-06-30 | 1988-08-09 | W. R. Grace & Co. | Multilayer film with better layer adhesion |
EP2441508B1 (de) * | 2010-10-12 | 2013-08-07 | BOKELA Ingenieurgesellschaft für Mechanische Verfahrenstechnik mbH | Filterscheibe, Scheibenfilter und Filtrationsverfahren |
CN203634925U (zh) * | 2013-12-20 | 2014-06-11 | 中冶京诚工程技术有限公司 | 陶瓷过滤盘固定装置 |
CN204738639U (zh) * | 2015-05-18 | 2015-11-04 | 安徽理工大学 | 一种双插孔门插销 |
CN206444307U (zh) * | 2016-08-31 | 2017-08-29 | 中信重工机械股份有限公司 | 一种盘式过滤机的对夹式导轨装置 |
-
2020
- 2020-05-06 AT ATA50385/2020A patent/AT522597B1/de active
-
2021
- 2021-04-08 WO PCT/EP2021/059172 patent/WO2021223954A1/de active Application Filing
- 2021-04-08 BR BR112022020645A patent/BR112022020645A2/pt unknown
- 2021-04-08 CN CN202180034011.XA patent/CN115551611A/zh active Pending
-
2022
- 2022-11-03 CL CL2022003034A patent/CL2022003034A1/es unknown
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3692181A (en) * | 1971-03-04 | 1972-09-19 | Envirotech Corp | Novel clamping device for sectors of a rotary disc filter |
GB2000040A (en) * | 1977-06-20 | 1979-01-04 | Simonson G | Filters |
AT503524B1 (de) | 2006-05-09 | 2008-05-15 | Andritz Ag Maschf | Scheibenfilter und sektoren für scheibenfilter |
CN204543736U (zh) * | 2015-02-15 | 2015-08-12 | 中信重工机械股份有限公司 | 一种用于盘式过滤机扇形板的固定装置 |
CN205613131U (zh) * | 2016-03-22 | 2016-10-05 | 中信重工机械股份有限公司 | 一种用于立盘过滤机扇形板夹的装卸装置 |
CN209548874U (zh) * | 2019-01-31 | 2019-10-29 | 洛阳欧诺机械有限公司 | 一种立盘过滤机扇盘安装结构 |
Also Published As
Publication number | Publication date |
---|---|
CL2022003034A1 (es) | 2023-05-05 |
CN115551611A (zh) | 2022-12-30 |
BR112022020645A2 (pt) | 2022-11-29 |
AT522597B1 (de) | 2020-12-15 |
AT522597A4 (de) | 2020-12-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0523518B1 (de) | Flanschring | |
EP0217053B1 (de) | Spreizanker | |
DE602005002202T2 (de) | Zentrifuge mit gekerbtem Sicherungsflansch | |
WO2011041917A1 (de) | Austraganordnung mit einer verbindungsvorrichtung zwischen einer mehrkomponenten-kartusche und einem zubehörteil | |
EP0326522A1 (de) | Verbindungselement, insbesondere zum Verbinden der Seitenwände eines Versorgungskörpers mit Säulen eines Raumteilers | |
EP0924453A1 (de) | Lösbare Rohrverbindung, insbesondere für luftführende Rohre | |
DE3918347C2 (de) | ||
EP2940249A1 (de) | Radscheibenanordnung und Verfahren zur Montage einer Radscheibenanordnung | |
DE1477978B2 (de) | ||
DE202008008090U1 (de) | Beschlag für einen Fahrzeugsitz | |
AT522597B1 (de) | Scheibenfilter und sektoren für scheibenfilter | |
EP1653141A1 (de) | Verbindungseinrichtung und Filtervorrichtung mit einer derartigen Verbindungseinrichtung | |
DE102007018054B4 (de) | Scheibenfilter und Sektoren für Scheibenfilter | |
DE9104669U1 (de) | Aus einzelnen Scheibenfiltersegmenten bestehendes Scheibenfilter | |
EP0596377A1 (de) | Tauchrohr für einen Fliehkraftabscheider (Zyklon) | |
DE3101713C2 (de) | ||
DE1808802A1 (de) | Tellerfederkupplung,insbesondere fuer Kraftfahrzeuge | |
DE3140364A1 (de) | Foerderschnecke, insbesondere fuer vollmantel-zentrifugen | |
EP1400706A1 (de) | Vorrichtung zum lösbaren Befestigen eines Motors an einem Förderer | |
EP0089638B1 (de) | Durchgangskupplung für Rohrleitungen oder Schläuche | |
DE2823417C3 (de) | Schachtauskleidung zur Verwendung beim Aufwärtsbohren eines Schachtes und Schachtring für eine derartige Schachtauskleidung | |
DE3733746C2 (de) | Mischwerk für Betonmischmaschinen | |
DE3835676C2 (de) | ||
DE19832423B4 (de) | Befehls- oder Meldegerät zum Einbau in eine Schalttafel oder dergleichen | |
DD260310A1 (de) | Vorrichtung zur loesbaren verbindung von ineinandergelagerten zylindrischen teilen |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 21718538 Country of ref document: EP Kind code of ref document: A1 |
|
REG | Reference to national code |
Ref country code: BR Ref legal event code: B01A Ref document number: 112022020645 Country of ref document: BR |
|
ENP | Entry into the national phase |
Ref document number: 112022020645 Country of ref document: BR Kind code of ref document: A2 Effective date: 20221011 |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 21718538 Country of ref document: EP Kind code of ref document: A1 |