EP1509456A1 - Self-opening closure for composite packagings or for container connection pieces closed by a film material - Google Patents
Self-opening closure for composite packagings or for container connection pieces closed by a film materialInfo
- Publication number
- EP1509456A1 EP1509456A1 EP03718593A EP03718593A EP1509456A1 EP 1509456 A1 EP1509456 A1 EP 1509456A1 EP 03718593 A EP03718593 A EP 03718593A EP 03718593 A EP03718593 A EP 03718593A EP 1509456 A1 EP1509456 A1 EP 1509456A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sleeve
- self
- cap
- cylinder wall
- guide
- 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.)
- Granted
Links
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
- B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
- B65D5/42—Details of containers or of foldable or erectable container blanks
- B65D5/72—Contents-dispensing means
- B65D5/74—Spouts
-
- 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
- B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
- B65D5/42—Details of containers or of foldable or erectable container blanks
- B65D5/72—Contents-dispensing means
- B65D5/74—Spouts
- B65D5/746—Spouts formed separately from the container
- B65D5/747—Spouts formed separately from the container with means for piercing or cutting the container wall or a membrane connected to said wall
- B65D5/748—Spouts formed separately from the container with means for piercing or cutting the container wall or a membrane connected to said wall a major part of the container wall or membrane being left inside the container after the opening
Definitions
- This invention relates to a self-opening closure for multi-packs and for sealed with film material container neck or bottle necks of all kinds.
- liquid packs in the form of such multi-packs made of film-coated paper in which, for example, milk, fruit juices, all kinds of non-alcoholic drinks or liquids in general can also be packaged from the non-food sector.
- the closure can also be used for multi-packs, in which bulk goods such as sugar, semolina or all kinds of chemicals and the like are stored or packaged.
- This film-coated paper is a laminate material, for example a paper or cardboard web coated with plastic such as polyethylene and / or aluminum. Usual volumes of such packs range from 20cl to 2 liters and more.
- the self-opening closure can also be mounted on containers that are closed by a film material, for example on all kinds of bottles made of glass or plastic or on similar containers.
- a film material for example on all kinds of bottles made of glass or plastic or on similar containers.
- closures made of plastic are known in various designs. If they are intended for a composite package, they essentially form a pouring spout with radial from its lower edge cantilevered edge, which forms a final flange on this pouring spout.
- the nozzle is equipped with an external thread, onto which a rotating cap can be screwed as a closure.
- Such a self-opening closure is flanged onto the composite package by sealingly welding it onto the composite package with the underside of its projecting edge, that is to say with the underside of its flange.
- the pouring spout can itself be plugged or screwed onto a bottle mouth and sealed on the inside with a film membrane.
- the socket is equipped with an external thread, onto which the rotating cap can then be screwed as a closure.
- a sleeve or a nipple is arranged in the inside of the connecting piece, which is taken along by the screwed-on cap when it is turned and is therefore rotated through it in the same direction of rotation. Due to a thread running counter to the thread on the outside of the socket and the inside of the cap, on the inside of the socket and on the outside of the sleeve, the screw moves continuously downwards when the screw cap is unscrewed, i.e.
- the sleeve when it moves upwards relative to the liquid pack , The lower edge of the sleeve is equipped with one or more tearing or cutting teeth. As a result of its rotation and steady downward movement, the sleeve is intended to push or cut a disk out of the film-reinforced paper or film membrane that passes beneath it.
- the slowly moving down and simultaneously rotating sleeve touches with its entire lower edge, at the same time, the foil-reinforced paper foil to be cut open and presses it down as a whole and turns on it until a hole is scraped through or broken through rather than cut open.
- One problem lies in the fact that the film to be cut dodges the pressure of the sleeve, which acts as a bit, to a certain extent downwards, and the sleeve therefore no longer acts on a flat paper film, but on a downward curved one.
- the previous solutions due to the design of the sleeves, which are also referred to as puncturers because they pierce a piece of paper film rather than cleanly cut out a circular disk, require considerable force on the part of the user.
- a large torque must be applied because the teeth or rippers at the bottom piercing edge or sleeve edge only scratch the film and then have to overcome a large rotational resistance. In the uppermost layer of paper thickness, they have a similar effect to ripping teeth, namely puffy, pressing and tearing instead of acting as real cutting blades.
- the film material or the composite material for the conventional self-opening closures of this type is pre-weakened at the desired tear points by means of lasers or punching tools. However, this weakening is technically associated with considerable effort. Expensive equipment is required and the handling for processing the puncture points on the foils is time-consuming.
- the conventional self-opening fasteners do not cut cleanly, but tear open the paper or plastic film rather than cutting it open, which explains the great resistance to rotation. Because of the high rotational resistance, there are even occasional breaks in the Means, which are to take over the transmission of the torque from the rotary cap to the piercing sleeve, or the provided driving cams, which engage in grooves on the piercing sleeve, jump out of these grooves. If this happens, the self-opening lock is no longer functional.
- a self-opening closure for multi-packs as well as for container sockets closed with film material consisting of a socket which can be sealingly mounted on a composite package or on a container closed with film material, an associated rotating cap and one arranged within the socket Self-opener, which can be set in rotation by the rotary cap, the self-opener closure being characterized in that the inside of the socket is equipped with at least two guide webs distributed around its inner circumference with a changing slope, so that the self-opener, designed as a sleeve, is on the outside thereof at least two guide ribs are arranged, each with a guide surface, executes an unsteady downward movement which overlaps its rotary movement when the inside of the connecting piece is continuously rotated by guiding its guide surfaces on the guide webs is.
- Figure 1 The self-opening closure with its three components in a disassembled state seen from the side;
- Figure 2 The self-opening closure with its three components in a disassembled state seen from the side, all components being shown in a longitudinal section along the central central axis of the closure;
- Figure 3 The self-opening closure with its three components in the assembled state in a longitudinal section along the central central axis of the closure;
- Figure 4 The self-opening closure in the assembled state in a perspective view seen obliquely from below, with the self-opening sleeve in its initial state;
- Figure 5 The self-opening closure in the assembled state in a perspective view seen obliquely from below, with the self-opening sleeve in the extended or lowered state, ready for the cutting movement;
- Figure 6 The self-opening closure in the assembled state in a perspective view seen obliquely from below, with the self-opening sleeve shown completely detached from the socket;
- Figure 7 The self-opening closure in a version for mounting on a container sealed with a film.
- the self-opening closure is shown in the disassembled state. It consists of three components, each made of injection-molded plastic, namely a rotating cap 1, a pouring spout 2 and one Self-opening sleeve 3.
- the rotary cap 1 is provided with knurling or grooves on the outside, so that this outside is easier to grip.
- a guarantee tape 4 is molded onto the same, which is connected to the rotary cap 1 only via a few fine material bridges 5, which are designed and designed as predetermined breaking points.
- the pouring spout 2 is equipped on its outside with an external thread which matches a corresponding internal thread on the rotating cap 1, although this is not visible here.
- the socket 2 carries a small, bevelled bead 7 with an edge 8 on its underside.
- a pouring socket 2 with an external thread and an associated threaded cap with an internal thread a pouring socket with an associated rotating cap can be used, whereby the rotating cap can be placed on the pouring spout by means of a bayonet catch.
- the pouring spout is provided with corresponding grooves on the outside and the rotating cap on the inside with associated cams or vice versa.
- a radially projecting, annular and flat projection 9 is formed on the lower edge of the connecting piece 2.
- the connector 2 is welded onto a composite package made of a laminate from a film-reinforced paper or cardboard web by means of an ultrasound welding. This laminate therefore runs continuously under the pouring spout 2 and closes the clear passage opening of the spout 2 on its underside.
- the laminate In order to be able to pour liquid out of the pack through this spout 2 or to be able to pour out a bulk material, the laminate must be in the area of the passage opening pushed away, perforated, cut away or torn away. It is desirable that the through opening is exposed as completely as possible, that is to say the laminate is cut out as cleanly as possible in this area, after which the laminate disc which has been cut out can then be swiveled away and then opens the passage as far as possible.
- a self-opener in the form of a specially shaped sleeve 3 is used to expose the through opening.
- At least two guide ribs 12 distributed over the circumference are formed on the outer circumference of the self-opening sleeve 3, but preferably, as in the example shown, four of them.
- Each of these guide ribs 12 consists of two sections 13, 14, namely a section 13 running horizontally on the sleeve 3 and a vertical section 14, which together form a right angle.
- the outer tip of this right angle is chamfered at an angle of 45 ° to the sections 13, 14 and forms with this chamfered surface a guide surface 15 which is intended to slide along a guide curve formed by guide webs on the inner wall of the connecting piece 2, such as that becomes clear from further drawings.
- the self-opening closure is also shown with its three components, namely the rotary cap 1, the pouring spout 2 and the self-opening sleeve 3 in a disassembled state.
- all components are shown in a longitudinal section along the central central axis of the closure.
- Inside the rotating cap 1 you can see its internal thread 16.
- two cylinder wall segments 17, 18 are formed on the inside of this rotating cap 1 on the underside of the cap cover in the example shown , the radius of the corresponding cylinder being smaller than that of the cylindrical rotary cap wall.
- the two cylinder wall segments 17, 18 which follow one another in the circumferential direction are spaced apart from one another by a small lateral distance, so that a gap 19 is formed between them.
- the lower edge of the two cylinder wall segments 17, 18 is shaped to run obliquely downward and thus each forms a lower edge which leads downward in a helical shape.
- guide webs 20 can be seen distributed over its inner circumferential wall, which are intended to interact with the guide ribs 12 on the self-opening sleeve 3.
- each of these guide webs 20 consists of a horizontal section 21 and a section 22 arranged obliquely upwards with respect to the connecting piece axis.
- the guarantee band 4 can no longer be put back upward over the bead 7 once it has closely wrapped around the peripheral wall of the socket 2 below this bead 7.
- the guarantee tape 4 must therefore first be removed, for which purpose it is torn away while the material bridges 5 are broken. Thereafter, the rotating cap 1 is released for rotating and moving upward.
- the protrusion 9 protruding radially from the lower edge of the socket 2 is welded onto the paper laminate or cardboard laminate of a liquid pack or bulk pack by means of an ultrasound welding.
- the self-opening sleeve 3 is shown below the socket 2.
- the sleeve 3 is inserted into the socket 2 in such a rotational position that its chamfered guide surfaces 15 come to rest on the socket 2 on their guide ribs 12 on the undersides of the upper ends of the inclined sections 22 of the guide webs 20.
- the rotary cap 1 is placed on these two components in such a rotational position that the traversing web 23 lies in the gaps 19 between the two cylinder wall segments 17, 18 on the lower cover side of the rotary cap 1 comes.
- the rotating cap 1 is pressed with its guarantee band 4 with slight deformation thereof with force over the upper bevel of the bead 7 and secures the rotating cap 1 with its subsequent full contact on the outside of the nozzle wall against twisting, because it is from the guarantee band 4 in its The lowest screw position is held and can only be unscrewed if the guarantee strip 4 is torn away first, because it can no longer slide upwards over the sharp lower edge 8 of the bead 7.
- Figure 3 shows this self-opening closure with its three components in the assembled state in a longitudinal section along the central central axis of the closure. It can be seen that the self-opening sleeve 3 lies between the cylinder wall segments 17, 18 and the connector 2 and that the traversing web 23 runs at the upper edge of the sleeve 3 in the gap 19 between the adjacent cylinder wall segments 17, 18. On the outside of the sleeve 3, the horizontal section 13 of one of its guide ribs 12 can be seen.
- one in the form of a star with three webs extending radially around the circumference from the center of the sleeve 3 to the outside can also be realized, three cylinder wall segments then being used accordingly, between which the three webs come to rest.
- Four radial webs, which together form a cross from two webs traversing the sleeve diameter, are also conceivable, in which case four cylinder wall segments are then distributed around the circumference. If, however, the sleeve 3 is rotated counterclockwise via its web 23, the guide surfaces 15 of its guide ribs 12, which cannot be seen here from FIGS. 1 and 2, slide down along the underside of the guide webs 20 on the connecting piece 2.
- the left-hand rotation of the rotating cap 1 is therefore accompanied by a steep, helical downward movement of the self-opening sleeve 3.
- the paper or cardboard laminate which extends over the clear width of the socket 2
- the paper or cardboard laminate is initially essentially pierced by the sharp tip 24 of the spike 10 at the lower edge of the sleeve 3.
- a hole is simply punched into the edge of the laminate disc, i.e. the laminate is pierced, not cut.
- the laminate material is displaced on all sides during a puncture and torn at the puncture point. The reaction forces of the lancing movement are absorbed by the projecting edge 9 of the nozzle 2 via the welding.
- This first movement section of the self-opening sleeve proves to be decisive. Because, in conventional solutions, the self-opening sleeve continuously rotates downwards following a screw line and its teeth therefore hit the film at a flat angle, they are unable to pierce the film. In the solution presented here, however, the sleeve follows a very steep downward movement in a first phase. The sharp tip 24 of its piercing mandrel 10 therefore strikes the film at a steep angle and initially pierces it practically locally.
- the sleeve 3 has meanwhile reached its lowest position in relation to the connector 2, that is to say the guide surface 15 on its guide ribs 12 is now at the end of the obliquely running guide webs 22 on the inner wall of the neck or at the beginning of the horizontal sections 21 of the guide webs. If the rotary cap 1 is now rotated further counterclockwise, the sleeve 3 is also rotated further counterclockwise, however, it no longer moves downward, but instead performs a horizontal rotation. The piercing mandrel 10 protruding through the paper or cardboard film subsequently acts with its sharp cutting edge 11 as a knife.
- the cutting edge 11 thus cuts a round disk made of the paper or cardboard laminate along the lower inner edge of the nozzle 2.
- the cutting movement extends over a rotation of the sleeve by approx. 340 °.
- the cut-out disc hangs only on a thin material bridge and is pivoted or folded down into the pack by the compressive force of the cutting edge 11 acting in the cutting direction and held in this pivoted down position.
- this self-opening lock acts like a classic can opener.
- opening a can it is also crucial that the cover is pierced first, namely by an essentially vertical movement of the tip of the cutting tool on and through the can cover.
- the rotary cap 1 is screwed up on the socket 2 until the downwardly projecting cylinder wall segments 17, 18 on the underside of the Rotating cap cover are raised beyond the web 23 on the sleeve 3 and can therefore no longer transmit any further torque to the same.
- the rotary cap 1 is then completely unscrewed from the nozzle 2 and the liquid can now be poured out or poured out of the liquid pack via the nozzle 2 exposed inside, or in the case of a bulk material in the package, this can be poured out through the nozzle 2.
- the rotary cap 1 is then screwed onto the socket 2 again in order to close the closure again.
- FIG. 4 shows the self-opening closure in the assembled state in a perspective view seen obliquely from below.
- the self-opening sleeve 3 is in its initial state. On its upper edge one can see a piece of the traversing web 23 which connects its upper edge to one another at two points. This web 23 lies between the two cylinder wall segments 17, 18, which are molded onto the underside of the cover of the rotary cap 1.
- the rotary cap 1 If the rotary cap 1 is rotated in the loosening direction, that is, in the view shown here from below in a clockwise direction, the cylinder wall segments 17, 18 take the intermediate web 23 and thus the sleeve 3 with them, as a result of which special guide ribs 12 on the outside and the guide webs 20 on the inside of the connector 2 is forcibly moved downwards in a steep spiral.
- the sharp tip 24 of the piercing mandrel 10 acts as a piercing tip and first pierces the paper or cardboard laminate of the composite package welded to the underside of the projecting edge 9 of the connector 2.
- the end of one of the horizontal sections 13 of its guide ribs 12 engages in the recess 25 on the inner wall of the socket 2 and prevents the sleeve 3 from rotating further or also into Can be turned in the opposite direction.
- the sleeve 3 has pivoted the disk cut almost completely out of the laminate down into the container and holds it securely in this position. The flow through the nozzle 2 is thus released.
- Figure 6 shows the pouring spout 2 and the sleeve 3 of the self-opening closure in the assembled state in perspective view seen obliquely from below, but the self-opening sleeve 3 is shown completely detached from the nozzle 2, so that the special arrangement their guide ribs 12 can be seen better and their function can therefore be better understood.
- Figure 7 shows an alternative embodiment of this self-opening closure for mounting on the membrane-sealed neck of a container or a bottle.
- the pouring spout 2 therefore has no cantilevered edge on its underside, but is transferred via a shoulder 27 into a threaded sleeve 28 which can be screwed onto the external thread of a bottle neck or onto the pouring spout of any container, which is on its upper Edge is closed with a foil and sealed.
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH917022002 | 2002-05-31 | ||
CH9172002 | 2002-05-31 | ||
PCT/CH2003/000328 WO2003101843A1 (en) | 2002-05-31 | 2003-05-22 | Self-opening closure for composite packagings or for container connection pieces closed by a film material |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1509456A1 true EP1509456A1 (en) | 2005-03-02 |
EP1509456B1 EP1509456B1 (en) | 2006-06-28 |
Family
ID=29589389
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03718593A Expired - Lifetime EP1509456B1 (en) | 2002-05-31 | 2003-05-22 | Self-opening closure for composite packagings or for container connection pieces closed by a film material |
Country Status (12)
Country | Link |
---|---|
US (1) | US7207465B2 (en) |
EP (1) | EP1509456B1 (en) |
KR (1) | KR101027209B1 (en) |
CN (1) | CN100431928C (en) |
AU (1) | AU2003222713A1 (en) |
BR (1) | BR0311396B1 (en) |
CA (1) | CA2485300C (en) |
DE (1) | DE50304066D1 (en) |
ES (1) | ES2270005T3 (en) |
MX (1) | MXPA04011678A (en) |
RU (1) | RU2314238C2 (en) |
WO (1) | WO2003101843A1 (en) |
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US10384825B2 (en) | 2009-08-17 | 2019-08-20 | Tetra Laval Holdings & Finance S.A. | Sheet packaging material for producing sealed packages of pourable food products |
US10676261B2 (en) | 2017-09-07 | 2020-06-09 | Silgan White Cap LLC | Closure assembly |
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EP2897874B1 (en) * | 2012-09-21 | 2017-04-12 | Necat Emircan | A screwed cover embodiment having apparatus of foil-cutting and folding to the inner part in the aseptic liquid cardboard packages |
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IT1289960B1 (en) * | 1997-02-24 | 1998-10-19 | Tetra Laval Holdings & Finance | OPENING DEVICE FOR PACKAGING OF VERSABLE FOOD PRODUCTS |
IT1290079B1 (en) * | 1997-03-14 | 1998-10-19 | Tetra Laval Holdings & Finance | RE-SEALABLE OPENING DEVICE FOR PACKAGING FOR VERSABLE FOOD PRODUCTS |
CN1113021C (en) * | 1998-02-17 | 2003-07-02 | 埃洛帕克有限公司 | Improvements in or relating to packaging |
EP0947433A1 (en) * | 1998-04-03 | 1999-10-06 | Tetra Laval Holdings & Finance SA | Device for opening packages of pourable food products |
ATE272004T1 (en) * | 1999-10-01 | 2004-08-15 | Tetra Laval Holdings & Finance | LOCKABLE OPENING DEVICE FOR PACKAGINGS FOR FLUID FOODS |
EP1399366B1 (en) * | 2001-06-27 | 2006-10-04 | Bericap Holding GmbH | Closing device with a piercing element |
-
2003
- 2003-05-22 AU AU2003222713A patent/AU2003222713A1/en not_active Abandoned
- 2003-05-22 CN CNB038121344A patent/CN100431928C/en not_active Expired - Fee Related
- 2003-05-22 RU RU2004132851/12A patent/RU2314238C2/en not_active IP Right Cessation
- 2003-05-22 US US10/516,444 patent/US7207465B2/en not_active Expired - Lifetime
- 2003-05-22 WO PCT/CH2003/000328 patent/WO2003101843A1/en not_active Application Discontinuation
- 2003-05-22 ES ES03718593T patent/ES2270005T3/en not_active Expired - Lifetime
- 2003-05-22 CA CA2485300A patent/CA2485300C/en not_active Expired - Fee Related
- 2003-05-22 KR KR1020047018916A patent/KR101027209B1/en active IP Right Grant
- 2003-05-22 DE DE50304066T patent/DE50304066D1/en not_active Expired - Lifetime
- 2003-05-22 MX MXPA04011678A patent/MXPA04011678A/en active IP Right Grant
- 2003-05-22 BR BRPI0311396-5A patent/BR0311396B1/en not_active IP Right Cessation
- 2003-05-22 EP EP03718593A patent/EP1509456B1/en not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO03101843A1 * |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8672167B2 (en) | 2007-11-29 | 2014-03-18 | Sig Technology Ag | Self-opening and re-sealable pouring element of plastics material for application to a pack for liquids |
US10384825B2 (en) | 2009-08-17 | 2019-08-20 | Tetra Laval Holdings & Finance S.A. | Sheet packaging material for producing sealed packages of pourable food products |
US10676261B2 (en) | 2017-09-07 | 2020-06-09 | Silgan White Cap LLC | Closure assembly |
US11718457B2 (en) | 2017-09-07 | 2023-08-08 | Silgan White Cap LLC | Closure assembly |
CN113968415A (en) * | 2020-07-24 | 2022-01-25 | Sig技术股份公司 | Pouring element with protective cutting element guide |
CN113968415B (en) * | 2020-07-24 | 2023-12-22 | 康美包服务股份公司 | Pouring element for a composite package |
Also Published As
Publication number | Publication date |
---|---|
MXPA04011678A (en) | 2005-07-05 |
US20050242113A1 (en) | 2005-11-03 |
DE50304066D1 (en) | 2006-08-10 |
CN100431928C (en) | 2008-11-12 |
WO2003101843A1 (en) | 2003-12-11 |
BR0311396B1 (en) | 2012-06-12 |
KR20040106581A (en) | 2004-12-17 |
CA2485300A1 (en) | 2003-12-11 |
KR101027209B1 (en) | 2011-04-06 |
RU2004132851A (en) | 2005-09-10 |
CA2485300C (en) | 2011-04-12 |
US7207465B2 (en) | 2007-04-24 |
RU2314238C2 (en) | 2008-01-10 |
ES2270005T3 (en) | 2007-04-01 |
AU2003222713A1 (en) | 2003-12-19 |
CN1655991A (en) | 2005-08-17 |
EP1509456B1 (en) | 2006-06-28 |
BR0311396A (en) | 2005-03-15 |
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