EP3551547B1 - Receptacle closure - Google Patents

Receptacle closure Download PDF

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Publication number
EP3551547B1
EP3551547B1 EP17829271.0A EP17829271A EP3551547B1 EP 3551547 B1 EP3551547 B1 EP 3551547B1 EP 17829271 A EP17829271 A EP 17829271A EP 3551547 B1 EP3551547 B1 EP 3551547B1
Authority
EP
European Patent Office
Prior art keywords
closure
main housing
disc
receptacle
stem
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.)
Active
Application number
EP17829271.0A
Other languages
German (de)
French (fr)
Other versions
EP3551547A1 (en
Inventor
Joanne Richardson
Omar Zanatta
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.)
Closure Solution Ltd
Original Assignee
Liquid Nation SRL
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 Liquid Nation SRL filed Critical Liquid Nation SRL
Priority to PL17829271T priority Critical patent/PL3551547T3/en
Priority to SI201731193T priority patent/SI3551547T1/en
Publication of EP3551547A1 publication Critical patent/EP3551547A1/en
Application granted granted Critical
Publication of EP3551547B1 publication Critical patent/EP3551547B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D51/00—Closures not otherwise provided for
    • B65D51/16—Closures not otherwise provided for with means for venting air or gas
    • B65D51/1672—Closures not otherwise provided for with means for venting air or gas whereby venting occurs by manual actuation of the closure or other element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D51/00—Closures not otherwise provided for
    • B65D51/16—Closures not otherwise provided for with means for venting air or gas
    • B65D51/1672—Closures not otherwise provided for with means for venting air or gas whereby venting occurs by manual actuation of the closure or other element
    • B65D51/1683—Closures not otherwise provided for with means for venting air or gas whereby venting occurs by manual actuation of the closure or other element by actuating a separate element in the container or closure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D79/00—Kinds or details of packages, not otherwise provided for
    • B65D79/005—Packages having deformable parts for indicating or neutralizing internal pressure-variations by other means than venting
    • B65D79/0087—Packages having deformable parts for indicating or neutralizing internal pressure-variations by other means than venting the deformable part being located in a closure, e.g. in caps or lids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B65D47/04—Closures with discharging devices other than pumps
    • B65D47/20—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge
    • B65D47/2018—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure
    • B65D47/2056—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure lift valve type
    • B65D47/2062—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure lift valve type in which the deformation raises or lowers the valve stem

Definitions

  • This invention relates to a receptacle closure. More especially the invention relates to a closure for a receptacle that contains a carbonated liquid.
  • Carbonated drinks or liquids are generally supplied in containers with screw top closure or corks or cans with a ring-pull. All such mechanisms suffer from, sometimes violent, liquid emission when the container is first opened at the instant when gas is expelled to release the pressure within the container.
  • the liquid is often found to be flat when drunk.
  • the present invention seeks to alleviate the problems associated with the spray of liquid on opening of container, by providing a mechanism within the closure to release the pressure within the container prior the closure being removed.
  • Reference to carbonated includes liquids that are gaseous, aerated or otherwise sparkling or fizzy.
  • the liquids are generally for human consumption (although may not necessarily be) and may be alcoholic or soft (non-alcoholic).
  • GB 2 276 153A discloses a cap for a pressurized container, according to the preamble of claim 1.
  • a first aspect of the invention provides a closure for a receptacle containing carbonated liquid, the closure including activation means to release a selected amount of fluid from container into a defined chamber within the closure on activation thereby to reduce the pressure within the receptacle prior to removal of the closure.
  • the activation means comprises a button that is depressed for activation.
  • Embodiments herein describe closures for receptacles containing carbonated or sparkling drinks, for example champagne.
  • the closure is removable, and in some embodiments is secured to the receptacle by means of a helical screw thread arrangement, with the screw threads being respectively on an outer surface of the closure and the interior surface of the receptacle.
  • This allows the closure to be unscrewed by a user to reduce the chances of liquid being spilled and also to allow the gradual and controlled release of gas, e.g. in the case of carbonated or sparkling drinks.
  • the fact that the engagement means, i.e. the screw threads, are internal to the bowl avoids contact with a user's mouth which might otherwise cause irritation or skin damage.
  • the outer surface of the bowl can therefore be smooth.
  • Figure 1 illustrates a closure in exploded view for use with a wine or champagne glass for example, although the glass can take any form and can be made of any material or combination thereof.
  • the term 'wine glass' will be used throughout.
  • the closure comprises four main parts. These parts consist of a main housing 1, a compressor disc 2, a bottom movable part 3 and a lid 4. A washer seal 5 is provided between the main housing 1 and bottom part 3.
  • the parts are made from silicon. They could, however be made from any material suitable for use as a closure for a glass or bottle. They could, for example, be made from a plastic material.
  • the glass may too be made from any suitable material, preferably the glass is made from a plastic material to complement the closure.
  • the main housing 1 is generally circular with a base and upstanding walls. As can be seen in figure 1 , the housing 1 has a central stem 6 with a through-bore 7. Flanges 8 extend from the stem 6 to the inner wall 9 of the main housing 1. The flanges 8 provide surfaces that a user can grip to rotate the main housing 1 to remove the closure. The flanges 8 also provide walls to define discrete internal chambers within the main housing 1 of the closure.
  • the bottom of the housing 1 includes circular recesses 10 extending around the bore aperture 7.
  • the side walls of the main housing 1 are provided with an external screw thread 11.
  • the screw thread 11 is designed to engage with a complimentary screw thread located on the inside of the wine glass.
  • the sides of the main housing 1 extend further out to a flanged perimeter 12 which extends beyond and overhangs the screw thread 11. In use, the walls of the wine glass extend into and between the perimeter 12 and the threaded wall 11 of the main housing 1.
  • the compression disc 2 of the closure comprises a generally disc-shaped body 13 which has a downwardly extending central stem 14.
  • the stem 14 of the compression disc 2 When assembled, the stem 14 of the compression disc 2 extends into and through the central bore 7 of the main housing 1.
  • the stem 14 may have side mouldings for strength. Examples of stems with reinforced mouldings are shown in figure 7 .
  • the disc-shaped body 13 is flexible and, as the outer periphery of the disc body 13 only rests in recesses of the side walls, the central part of the body 13 is able to be depressed manually by a user, into the space below it.
  • the disc body has a radial line of reduced thickness 15 which provides further flexibility to the central part of the disc 13.
  • Depression of the central part of the disc 13 causes the stem 14 to lower slightly within the bore 7 by a controlled amount.
  • the movable part 3 comprises a generally cylindrical shaped body 16 with a base and side walls.
  • the internal surface of the body 16 includes an upstanding central stem 17 with an opening 18 into which the end of the disc stem 14 can be received.
  • the side walls of the body 16 extend into the recesses 10 formed in the bottom surface of the housing 1 and the stem 17 extends up through the bore 7 to connect with the disc stem 14.
  • the washer seal 5 fits around the stem 17 against the internal surface of the base.
  • Lowering of the disc stem 14 within the bore 7 caused by depression of the central part of the disc body 13 causes lowering of the bottom part by a pre-determined and controlled amount.
  • the distance moved by the bottom part is very small.
  • the bottom part remains within the confines of the housing 1 as can be seen in figure 5 .
  • the lowering distance is though, enough to increase the area of the internal chamber 18 of the closure to allow a small amount of gas to be expelled from the wine glass into the chamber 18 to release the pressure within the wine glass.
  • the bottom part does not move sufficiently downward to affect the liquid level which would otherwise cause an upward force on the liquid.
  • depression of the disc 13 causes a release of pressure within the wine glass prior the closure being removed.
  • the closure can subsequently be removed by rotating the housing 1 in respect of the glass but by this time the pressure has already been reduced within the glass and so avoiding spray of liquid.
  • the initial expulsion of gas is controlled such that liquid remains carbonated and does not become flat.
  • the lid 4 in use, overlays the disc body 13 to protect it from accidental depression. As can be seen in figure 5 the lid 4 is pivotable about the housing 1 to allow access to the disc body 13. The lid 4 may be entirely removable.
  • the lid 4 has recesses 19 cut into the edge to provide grips to lift the lid 4 from the housing 1.
  • the base of the bottom part 3 may be made from a hydrophobic membrane rather than silicon. Similarly, hydrophobic seals may be provided between each closure part.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Cable Accessories (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)

Description

    Field of the Invention
  • This invention relates to a receptacle closure. More especially the invention relates to a closure for a receptacle that contains a carbonated liquid.
    • Background of the Invention
  • Carbonated drinks or liquids are generally supplied in containers with screw top closure or corks or cans with a ring-pull. All such mechanisms suffer from, sometimes violent, liquid emission when the container is first opened at the instant when gas is expelled to release the pressure within the container.
  • In the case of soft fizzy drinks, a person opening the bottle is often prepared for some of the liquid to spray out, particularly if gas has built up through the bottle being shaken, and all they would do is try to mitigate the amount of spray by making very small incremental turns of the lid to slowly release the pressure by very small amounts. Spray of liquid though remains a common problem.
  • Moreover, as the amount of gas expelled at the point of opening is not controlled, the liquid is often found to be flat when drunk.
  • In the case of carbonated alcoholic drinks, such as for example Champagne or Prosecco™, the use of corks are favoured.
  • The present invention seeks to alleviate the problems associated with the spray of liquid on opening of container, by providing a mechanism within the closure to release the pressure within the container prior the closure being removed.
  • Reference to carbonated includes liquids that are gaseous, aerated or otherwise sparkling or fizzy. The liquids are generally for human consumption (although may not necessarily be) and may be alcoholic or soft (non-alcoholic).
  • GB 2 276 153A discloses a cap for a pressurized container, according to the preamble of claim 1.
    • Summary of the Invention
  • A first aspect of the invention provides a closure for a receptacle containing carbonated liquid, the closure including activation means to release a selected amount of fluid from container into a defined chamber within the closure on activation thereby to reduce the pressure within the receptacle prior to removal of the closure.
  • Preferably the activation means comprises a button that is depressed for activation.
    • Brief Description of the Drawings
  • The invention will now be described, by way of non-limiting example, to accompanying drawings, in which:
    • Figure 1 is an exploded view from above of a closure constructed in accordance with the invention;
    • Figure 2 is an exploded view from below of the closure of figure 1;
    • Figure 3 is a plan view of the closure;
    • Figure 4 is a side cross-section of the closure taken through B-B of figure 3;
    • Figure 5 is a side cross-section of the closure taken through C-C of figure 3;
    • Figure 6 is a side cross-section of the closure illustrating the disc being depressed;
    • Figures 7(a) and 7(b) show alternative versions of disc stem;
    • Figure 8 is a top perspective view of the closure; and
    • Figure 9 is a side view of the closure.
    Detailed Description of Preferred Embodiments
  • Embodiments herein describe closures for receptacles containing carbonated or sparkling drinks, for example champagne.
  • The closure is removable, and in some embodiments is secured to the receptacle by means of a helical screw thread arrangement, with the screw threads being respectively on an outer surface of the closure and the interior surface of the receptacle. This allows the closure to be unscrewed by a user to reduce the chances of liquid being spilled and also to allow the gradual and controlled release of gas, e.g. in the case of carbonated or sparkling drinks. The fact that the engagement means, i.e. the screw threads, are internal to the bowl avoids contact with a user's mouth which might otherwise cause irritation or skin damage. The outer surface of the bowl can therefore be smooth.
  • Figure 1 illustrates a closure in exploded view for use with a wine or champagne glass for example, although the glass can take any form and can be made of any material or combination thereof. For ease of explanation, the term 'wine glass' will be used throughout.
  • The closure comprises four main parts. These parts consist of a main housing 1, a compressor disc 2, a bottom movable part 3 and a lid 4. A washer seal 5 is provided between the main housing 1 and bottom part 3. The parts are made from silicon. They could, however be made from any material suitable for use as a closure for a glass or bottle. They could, for example, be made from a plastic material. The glass may too be made from any suitable material, preferably the glass is made from a plastic material to complement the closure.
  • The main housing 1 is generally circular with a base and upstanding walls. As can be seen in figure 1, the housing 1 has a central stem 6 with a through-bore 7. Flanges 8 extend from the stem 6 to the inner wall 9 of the main housing 1. The flanges 8 provide surfaces that a user can grip to rotate the main housing 1 to remove the closure. The flanges 8 also provide walls to define discrete internal chambers within the main housing 1 of the closure.
  • Referring now to figure 2, the bottom of the housing 1 includes circular recesses 10 extending around the bore aperture 7.
  • As can be best seen in figure 4, the side walls of the main housing 1 are provided with an external screw thread 11. The screw thread 11 is designed to engage with a complimentary screw thread located on the inside of the wine glass. The sides of the main housing 1 extend further out to a flanged perimeter 12 which extends beyond and overhangs the screw thread 11. In use, the walls of the wine glass extend into and between the perimeter 12 and the threaded wall 11 of the main housing 1.
  • The compression disc 2 of the closure comprises a generally disc-shaped body 13 which has a downwardly extending central stem 14. When assembled, the stem 14 of the compression disc 2 extends into and through the central bore 7 of the main housing 1. The stem 14 may have side mouldings for strength. Examples of stems with reinforced mouldings are shown in figure 7.
  • When assembled the compression disc 2 sits within recesses formed in the side walls of the main housing 1.
  • The disc-shaped body 13 is flexible and, as the outer periphery of the disc body 13 only rests in recesses of the side walls, the central part of the body 13 is able to be depressed manually by a user, into the space below it. The disc body has a radial line of reduced thickness 15 which provides further flexibility to the central part of the disc 13.
  • Depression of the central part of the disc 13 causes the stem 14 to lower slightly within the bore 7 by a controlled amount.
  • The movable part 3 comprises a generally cylindrical shaped body 16 with a base and side walls. The internal surface of the body 16 includes an upstanding central stem 17 with an opening 18 into which the end of the disc stem 14 can be received. When assembled the side walls of the body 16 extend into the recesses 10 formed in the bottom surface of the housing 1 and the stem 17 extends up through the bore 7 to connect with the disc stem 14.
  • The washer seal 5 fits around the stem 17 against the internal surface of the base.
  • Lowering of the disc stem 14 within the bore 7 caused by depression of the central part of the disc body 13 causes lowering of the bottom part by a pre-determined and controlled amount. The distance moved by the bottom part is very small. The bottom part remains within the confines of the housing 1 as can be seen in figure 5. The lowering distance is though, enough to increase the area of the internal chamber 18 of the closure to allow a small amount of gas to be expelled from the wine glass into the chamber 18 to release the pressure within the wine glass. The bottom part does not move sufficiently downward to affect the liquid level which would otherwise cause an upward force on the liquid.
  • Importantly, depression of the disc 13 causes a release of pressure within the wine glass prior the closure being removed. The closure can subsequently be removed by rotating the housing 1 in respect of the glass but by this time the pressure has already been reduced within the glass and so avoiding spray of liquid.
  • Furthermore, the initial expulsion of gas is controlled such that liquid remains carbonated and does not become flat.
  • The lid 4, in use, overlays the disc body 13 to protect it from accidental depression. As can be seen in figure 5 the lid 4 is pivotable about the housing 1 to allow access to the disc body 13. The lid 4 may be entirely removable.
  • As can be seen in figure 8, the lid 4 has recesses 19 cut into the edge to provide grips to lift the lid 4 from the housing 1.
  • The base of the bottom part 3 may be made from a hydrophobic membrane rather than silicon. Similarly, hydrophobic seals may be provided between each closure part.

Claims (6)

  1. A closure for a receptacle containing carbonated liquid, the closure including activation means, wherein:
    - the closure comprises a first part forming a main housing (1) and a second part (3) movable in relation to the main housing; and
    - the activation means comprises a depressible section formed on the closure that is depressed manually for activation wherein the depressible section is on the top surface of the main housing and depression of the section causes the second part to move with respect to the first part to provide or increase a gap (18) within the closure into which gas from the receptacle can be expelled thereby to reduce the pressure in the receptacle; and
    - the main housing comprises a central stem (6) with a through-bore (7); and wherein the depressible section is formed as a compression disc (2) having a disc-shaped body (13) including a downwardly extending central stem (14) which, when the closure is assembled, extends into the through-bore of the main housing,
    characterised in that said disc-shaped body (13) has a radial line of reduced thickness (15) which provides flexibility to the central part of said disc-shaped body (13).
  2. A closure according to claim 1, further comprising a removable lid (4) section which, when in place, extends over the depressible section.
  3. A closure according to claim 1 or claim 2, wherein the side walls of the main housing are provided with an external screw thread (11) to engage with a complementary screw thread formed on the inner surface of a wall of the receptacle.
  4. A closure according to any one of claims 1 to 3, wherein the main housing further comprises radial flanges (8) that extend between the central stem and the through-bore.
  5. A closure according to any one of claims 1 to 4, wherein the compression disc sits within a recess formed within the main housing
  6. A closure according to any one of claims 1 to 5, wherein the second part of the closure comprises a main body with base and side walls, and has an upstanding central stem (17) having an opening into which a distal end of the disc stem is received when the closure is assembled so to downwardly move the second part of the closure with respect to the main housing when the compression disc is depressed.
EP17829271.0A 2016-12-07 2017-12-06 Receptacle closure Active EP3551547B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PL17829271T PL3551547T3 (en) 2016-12-07 2017-12-06 Receptacle closure
SI201731193T SI3551547T1 (en) 2016-12-07 2017-12-06 Receptacle closure

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1620843.1A GB2557342A (en) 2016-12-07 2016-12-07 Receptacle closure
PCT/GB2017/000175 WO2018104693A1 (en) 2016-12-07 2017-12-06 Receptacle closure

Publications (2)

Publication Number Publication Date
EP3551547A1 EP3551547A1 (en) 2019-10-16
EP3551547B1 true EP3551547B1 (en) 2022-01-26

Family

ID=58159846

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17829271.0A Active EP3551547B1 (en) 2016-12-07 2017-12-06 Receptacle closure

Country Status (9)

Country Link
EP (1) EP3551547B1 (en)
CN (1) CN110573436A (en)
AU (1) AU2017371544C1 (en)
ES (1) ES2918953T3 (en)
GB (1) GB2557342A (en)
PL (1) PL3551547T3 (en)
PT (1) PT3551547T (en)
SI (1) SI3551547T1 (en)
WO (1) WO2018104693A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT202000024046A1 (en) * 2020-10-13 2022-04-13 Liquid Nation S R L CLOSURE FOR A CONTAINER AND CONTAINER INCLUDING SUCH CLOSURE

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE622030A (en) *
GB2276153A (en) * 1993-03-18 1994-09-21 Andrew Michael Wheatley Safety cap for fizzy drinks
DE102012016902B3 (en) * 2012-08-27 2014-01-30 Mike Nebel Closing and opening device with a pressure relief valve for a liquid receiving container

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3141586A (en) * 1962-05-25 1964-07-21 Jonkopings Vacuumindustri Ab Container closure having pressure relieving means
US3684119A (en) * 1971-01-26 1972-08-15 Owens Illinois Inc Vented two-piece closure
GB2275675A (en) * 1993-03-06 1994-09-07 Stephen Graham Rutherford Ventable closure for pressurized containers
US6568566B2 (en) * 2001-09-21 2003-05-27 Erie Plastics Corporation Container closure with horizontal and vertical seals
DE202006000817U1 (en) * 2006-01-19 2006-03-16 Allit Aktiengesellschaft Kunststofftechnik Bottle cap for the controlled manual opening and closing of a drinks bottle comprises an outlet channel consisting of an end tube having a swirling chamber with an inlet opening close to the base and an outlet opening away from the base
DE102015003506A1 (en) * 2015-03-21 2016-09-22 E-PROPLAST-GmbH Lid membrane closure

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE622030A (en) *
GB2276153A (en) * 1993-03-18 1994-09-21 Andrew Michael Wheatley Safety cap for fizzy drinks
DE102012016902B3 (en) * 2012-08-27 2014-01-30 Mike Nebel Closing and opening device with a pressure relief valve for a liquid receiving container

Also Published As

Publication number Publication date
GB201620843D0 (en) 2017-01-18
AU2017371544A1 (en) 2019-07-25
GB2557342A (en) 2018-06-20
PT3551547T (en) 2022-05-11
SI3551547T1 (en) 2022-09-30
ES2918953T3 (en) 2022-07-21
WO2018104693A1 (en) 2018-06-14
AU2017371544C1 (en) 2023-10-26
PL3551547T3 (en) 2022-05-16
AU2017371544B2 (en) 2023-08-03
CN110573436A (en) 2019-12-13
EP3551547A1 (en) 2019-10-16

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