EP0464047A1 - Garniture d'etancheite pour bouchons de recipients - Google Patents

Garniture d'etancheite pour bouchons de recipients

Info

Publication number
EP0464047A1
EP0464047A1 EP90904325A EP90904325A EP0464047A1 EP 0464047 A1 EP0464047 A1 EP 0464047A1 EP 90904325 A EP90904325 A EP 90904325A EP 90904325 A EP90904325 A EP 90904325A EP 0464047 A1 EP0464047 A1 EP 0464047A1
Authority
EP
European Patent Office
Prior art keywords
container closure
container
closure according
actuating arm
sealing lip
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP90904325A
Other languages
German (de)
English (en)
Inventor
Manfred LÖFFLER
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.)
Alcoa Deutschland GmbH Verpackungswerke
Original Assignee
Alcoa Deutschland GmbH Verpackungswerke
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6377207&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0464047(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Alcoa Deutschland GmbH Verpackungswerke filed Critical Alcoa Deutschland GmbH Verpackungswerke
Publication of EP0464047A1 publication Critical patent/EP0464047A1/fr
Pending legal-status Critical Current

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
    • B65D41/00—Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
    • B65D41/02—Caps or cap-like covers without lines of weakness, tearing strips, tags, or like opening or removal devices
    • B65D41/04—Threaded or like caps or cap-like covers secured by rotation
    • 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
    • B65D41/00—Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
    • B65D41/02—Caps or cap-like covers without lines of weakness, tearing strips, tags, or like opening or removal devices
    • B65D41/04—Threaded or like caps or cap-like covers secured by rotation
    • B65D41/0407—Threaded or like caps or cap-like covers secured by rotation with integral sealing means
    • B65D41/0428—Threaded or like caps or cap-like covers secured by rotation with integral sealing means formed by a collar, flange, rib or the like contacting the top rim or the top edges or the external surface of a container neck

Definitions

  • the invention relates to a seal for a container closure according to the preamble of claim 1.
  • this known container closure has a very jagged and undercut contour, so that the structure is complicated and can only be manufactured with correspondingly complex plastic injection molds.
  • the container closure can therefore only be removed from the mold with a correspondingly high outlay during production.
  • a particularly simple structure should exist and, in particular, simple production and demoldability during production as a plastic injection molded part should also be provided.
  • the actuating arm pivoting the sealing lip ensures that when the sealing force of the axial seal is increased, the sealing lip lies firmly against the container to be closed in the radial direction, thereby ensuring an optimal sealing effect. Since the actuating arm and the sealing lip form a rigid rocker which, for decoupling, has a pivoting movement relieving weakening zone is assigned to the wall of the container closure, the required optimal sealing effect is achieved by shifting the rocker without the shape of the remaining contour of the container closure being changed. The rigidity of the rocker leads to direct power transmission, which has a favorable and particularly high intensity on the sealing function.
  • the actuating arm forms the axial seal and also coincides with the floor, there is a particularly simple construction which, viewed in cross section, results in a corresponding contour without undercuts occurring which complicate and expensive injection molds the manufacture of the container closure or its sealing device made of plastic.
  • the actuating arm therefore has a double function, in which it on the one hand shifts the sealing lip as part of the rocker and on the other hand itself takes over the sealing function mentioned (axial seal).
  • the axial seal can also be designed as a sealing lip.
  • the closure consists of one part and is made of plastic
  • a particularly simple and inexpensive design can be achieved by the actuating arm collapsing with the bottom of the container closure, which can be easily produced in large quantities is. Due to the weakened zone, the sealing lip lies particularly well against the container to be closed and optimally seals it. This good sealing effect is already achieved when the container closure is screwed onto a container thread with only a slight tightening torque; extreme tightening forces are therefore not absolutely necessary, which may lead to deformations of the container closure (cap contour).
  • Figure 2 shows another embodiment of a seal in section
  • Figure 3 shows another embodiment of a seal in section
  • Figure 4 shows another embodiment of a seal in section
  • Figure 5 shows another embodiment of a seal in section
  • Figure 6 shows another embodiment of a seal in section, which is designed as part of a sealing washer.
  • Figure 1 shows a partial section through a container closure 1 made of plastic.
  • the closure is manufactured, for example, by plastic injection molding. so that the seal and the closure consist of one piece.
  • the seal has a sealing lip 3 and an actuating arm 5.
  • the sealing lip has an essentially triangular cross-section, a contact surface 7 lying concentrically to the central axis of the container closure being formed.
  • the outer boundary wall 9 of the sealing lip 3 can enclose an angle of approximately 15 * to 85 *, preferably 30 ° to 60 ", with the contact surface 7. In the exemplary embodiment shown here, an angle of 45 'is selected.
  • the outer boundary surface 9 merges into the side wall 11 of the container closure 1.
  • the actuating arm 5 has an end surface which points downward in the direction of the container to be closed and which forms an angle of approximately 90 ′′ with the contact surface 7 of the sealing lip 3.
  • the angle can also be smaller if the sealing lip or the contact surface 7 is not arranged parallel to the central axis of the container closure 1 but is pivoted inwards.
  • the side wall 11 of the container closure 1 merges into a floor 15.
  • a weakening zone 17 is provided in the area of the seal formed from the sealing lip 3 and the actuating arm 5, which forms an inherently rigid rocker 18, Concluding, preferably forcefully decoupling, preferably external channel is.
  • the weakened zone is designed so that the actuating arm 5 can be pivoted upwards, in the direction of the floor 15. The pivot point of such a pivoting movement lies in the area of the intersection of the contact surface 7 and the end surface 13. Because the actuating arm 5 is pivoted counterclockwise, the sealing lip 3 also pivots counterclockwise.
  • FIG. 2 shows a further exemplary embodiment of a seal consisting of a sealing lip and an actuating arm, which is also part of a container closure made of plastic.
  • FIG. 2 again shows only a partial section of a container closure.
  • the container closure 20 in turn has a seal which has a sealing lip 23 and an actuating arm 25.
  • the sealing lip 23 has an essentially triangular cross-section, a contact surface 27 being formed concentrically to the central axis of the container closure 20 being formed. This can enclose an angle of approximately 10 ⁇ to 85 * with an outer boundary surface 29 of the sealing lip 23. The angle is preferably in Range between 15 'and 40'. In the exemplary embodiment as shown, the contact surface 27 and the outer boundary surface 29 enclose an angle of approximately 20 '.
  • the outer boundary surface 29 of the sealing lip 23 merges into the side wall 31 of the container closure 21.
  • the operating arm 25 in a Rich ⁇ processing on the container to be closed directed end face 33 which forms with the contact surface 27 forms an angle of about 90 •.
  • the side wall 31 of the container closure 21 merges into a floor 35.
  • the actuating arm 25 is part of the base 35.
  • a weakening zone 37 is provided in the wall of the container closure, which here too is concentric with the central axis of the Closure 21 arranged preferably outside groove is formed.
  • the cross section of the trough which decouples from the remaining areas of the container closure can be selected as desired. While a channel with an approximately semicircular cross section was selected in the exemplary embodiment according to FIG. 1, the channel here has a trapezoidal cross section.
  • the actuating arm 25 When the container 21 is placed on a container, its upper edge presses against the end surface 33. Because of the weakening zone 37, the actuating arm 25 can deflect at such a force, as a result of which a pivoting movement takes place. The The pivot point of this pivoting movement lies approximately in the region of the intersection between the contact surface 27 and the firing surface 33. When placed on a container, the actuating arm is pivoted counterclockwise. As a result of the mechanical coupling between the sealing lip 23 and the actuating arm 25, which leads to the formation of a rocker 36, the sealing lip 23 also pivots counterclockwise. The pivoting movement of the sealing lip 23 is indirectly facilitated by the weakening zone 37.
  • FIG. 3 shows a partial section through a container closure 41 made of plastic with a seal consisting of a sealing lip 43 and an actuating arm 45.
  • the sealing lip has a triangular cross section. It shows a contact surface 47 running parallel to the central axis of the container closure and an outer boundary surface 49.
  • the contact surface and the boundary surface can enclose an angle of 10 * to 85 °. In the exemplary embodiment shown, an angle of approximately 20 "is selected.
  • the outer boundary surface 49 merges into the side wall 51 of the container closure 41.
  • the actuating arm 45 has an end face 53 directed downward onto the container to be closed.
  • FIG. 3 The embodiment shown in Figure 3 is characterized in that the actuating arm 45 completely in the bottom 55 of the container closure 41 is integrated. That is, the operating arm 45 continues in the bottom 55 of the container closure.
  • the end surface 53 of the actuating arm 45 and the contact surface 47 of the sealing lip 43 enclose an angle of approximately 90 °.
  • An angle smaller than 90 can also be provided.
  • the side wall 51 of the container closure 41 merges into the base 55 via a hump or edge bead 57.
  • the bottom 55 is sunk in relation to the highest point of the edge bead 57.
  • a central trough 59 thus arises in the upper end region of the container closure 41.
  • the actuating arm 45 is so rigidly connected to the sealing lip 43 that when the actuating arm is pivoted, the sealing lip 43 is moved in the manner of a rigid rocker 56. If, for example, the actuating arm on the upper edge of the container swivels the actuating arm counterclockwise, the sealing lip 43 also shifts counterclockwise.
  • FIG. 4 shows a partial section through a further exemplary embodiment of a seal which is part of a container closure 61.
  • the seal has a sealing lip 63 and an actuating arm 65 assigned to it.
  • the sealing lip is triangular in cross section, a contact surface 67 arranged concentrically to the central axis of the container closure 61 and an outer boundary surface 69 being formed.
  • the two surfaces can form an angle from 10 "to about 85 °. In the embodiment shown here, an angle of about 45" is selected.
  • the outer boundary surface 69 merges into a side wall 71 of the container closure 61. This is also arranged concentrically to the central axis of the container closure.
  • the actuating arm 65 has a lower end surface 73 directed towards the container to be closed, which encloses an angle of approximately 90 "with the contact surface 67 of the sealing lip 63. The angle can also be selected to be larger or smaller.
  • the side wall 71 of the container closure 61 merges into a base 75.
  • the operating arm 65 arises from the inner surface of the floor.
  • a circumferential notch 77 which brings about decoupling, is provided, which is arranged in the transition area between the side wall 71 and the floor 75.
  • This notch facilitates a pivoting movement of the actuating arm 65, which occurs when, for example, a force is exerted on the end surface 73 by the container to be closed.
  • the actuating arm 65 and the sealing lip 63 are connected to one another in such a rigid manner as a rocker 76 that a pivoting movement of the sealing lip is produced when the actuating arm is pivoted, the pivot point of the two pivoting movements being approximately in the intersection of the contact surface 67 and the end surface 73 .
  • the weakening zone designed as a notch 77 can be arranged in the region of the base, the side wall or in the transition region between the side wall and the base. This also applies to the weakening zones of the exemplary embodiments shown in FIGS. 1 and 2.
  • FIG. 5 shows a section through a seal which is part of a container closure 61 ".
  • the same parts are provided with the same reference numerals, so that their detailed designation can be dispensed with.
  • the seal has a sealing lip 63 and an actuating arm 65.
  • the sealing lip 63 is triangular in cross section, a contact surface 67 arranged concentrically to the central axis of the container closure and an outer boundary surface 69 of the sealing lip 63 being formed.
  • the outer boundary surface merges into the side wall 71 of the container closure.
  • the actuating arm is provided with an end surface 73 which points to the container to be closed.
  • the side wall 71 of the container closure 61 continues in a bottom 75.
  • the circumferential notch 77 is dispensed with here.
  • the choice of the plastic for the container closure 61 'nevertheless ensures that a pivoting movement of both the actuating arm 65 and the sealing lip 63 is possible with a force acting on the end surface 73 of the actuating arm 65.
  • the function of the seal can easily be derived from the above.
  • a force acting from below on the end face of the actuating arm it is pivoted counterclockwise. Due to the relatively rigid coupling with the sealing lip, this is also pivoted so that it is pressed against the outer boundary surface of the container to be closed.
  • the rocker-shaped seal consisting of the sealing lip and the actuating arm is pressed onto a container, on the one hand the end face of the actuating arm serves as a sealing surface and on the other hand also the sealing lip which runs against the outer, concentric to the central axis of the closure Is pressed externally wall of the container.
  • the sealing lip is pressed against the outer wall of the container, the container is optimally sealed even if there is damage in the mouth region, that is to say in the region between the horizontal and vertical boundary surfaces of the container.
  • various overpressures in the container can be safely closed.
  • the overpressure to be sealed by the seal can be varied. The longer the sealing lip, the wider the area spanned on the outside of the container, the higher the overpressure in the container.
  • the actuating arm of the seal is not only pivoted by the force acting on the end face when the container is closed.
  • the actuating arm can be pivoted due to an overpressure in the container. If the bottom of the closure is arched upwards by overpressure, this arching causes the actuating arm to pivot in a counterclockwise direction. This also causes the sealing lip to be pivoted counterclockwise and pressed against the outside of the container to be closed. An overpressure in the container increases the sealing effect of the seal.
  • Blowing off excess pressure can be initiated by designing the seal.
  • the seal consisting of a sealing lip and an actuating arm can also be part of a sealing washer, which is inserted here, for example, into a metal container closure.
  • FIG. 6 shows a further exemplary embodiment of a container closure 101.
  • a closure made of thermoformable material for example made of aluminum or steel, is shown.
  • the closure is combined with a seal consisting of a sealing lip 103 and an actuating arm 105.
  • the seal is part of a sealing washer 107 inserted into the container closure 101.
  • a radius is provided in the region of the transition between the side wall 109 and the bottom 111 of the closure cap of the container 101.
  • the seal also has a radius on its outside facing the container closure, so that practically a rolling movement of the seal on the inner surface of the container closure is made possible.
  • the actuating arm 105 of the seal continues in the sealing washer 107, the sealing washer being designed thinner than the actuating arm in this exemplary embodiment.
  • a weakening zone 108 is thereby formed, which facilitates the pivoting movement of the actuating arm when a container 113 is closed by the container closure 101.
  • the seal shown in Figure 6 can be combined with a plastic container closure.
  • the container closure can be designed as a screw, twist-off or bayonet closure. This does not change the function of the seal consisting of the sealing lip and the actuating arm.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Table Devices Or Equipment (AREA)
  • Devices For Use In Laboratory Experiments (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Glass Compositions (AREA)
  • Catching Or Destruction (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Cartons (AREA)

Abstract

Un bouchon pour récipients comprend une paroi avec une base et une paroi latérale, ainsi qu'une garniture d'étanchéité avec un bord d'étanchéité axial qui coopère avec une face frontale du récipient et un levier d'actionnement. Afin d'obtenir une étanchéité optimale avec une structure simple, le levier d'actionnement (5) et le rebord d'étanchéité (3) forment une bascule rigide en soi (18) associée à une zone d'affaiblissement (17) de la paroi du bouchon du récipient qui facilite le pivotement de la bascule et l'enlèvement du bouchon; le levier d'actionnement (5) forme le bord d'étanchéité axial (13) et coïncide avec la base (15) du bouchon.
EP90904325A 1989-03-25 1990-02-28 Garniture d'etancheite pour bouchons de recipients Pending EP0464047A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3909864 1989-03-25
DE3909864A DE3909864A1 (de) 1989-03-25 1989-03-25 Dichtung fuer einen behaelterverschluss

Publications (1)

Publication Number Publication Date
EP0464047A1 true EP0464047A1 (fr) 1992-01-08

Family

ID=6377207

Family Applications (2)

Application Number Title Priority Date Filing Date
EP90103892A Expired - Lifetime EP0389815B1 (fr) 1989-03-25 1990-02-28 Joint d'étanchéité pour couvercle de récipient
EP90904325A Pending EP0464047A1 (fr) 1989-03-25 1990-02-28 Garniture d'etancheite pour bouchons de recipients

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP90103892A Expired - Lifetime EP0389815B1 (fr) 1989-03-25 1990-02-28 Joint d'étanchéité pour couvercle de récipient

Country Status (15)

Country Link
US (1) US5129533A (fr)
EP (2) EP0389815B1 (fr)
JP (1) JPH04504242A (fr)
KR (1) KR920700153A (fr)
AT (1) ATE79815T1 (fr)
AU (1) AU651947B2 (fr)
BR (1) BR9007249A (fr)
CA (1) CA2012260A1 (fr)
DD (1) DD300528A5 (fr)
DE (3) DE3909864A1 (fr)
ES (1) ES2045594T3 (fr)
FI (1) FI914448A0 (fr)
NO (1) NO913756L (fr)
RU (1) RU1838207C (fr)
WO (1) WO1990011231A1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5372267A (en) * 1993-06-30 1994-12-13 Magenta Corporation Safety container and dispenser for small items
US5579933A (en) * 1993-06-30 1996-12-03 Magenta Corporation Safety container and dispenser for small items
GB9316938D0 (en) * 1993-08-13 1993-09-29 Beeson & Sons Ltd Seal for container closure assembly
US6460718B1 (en) * 1997-10-28 2002-10-08 Gateway Plastics Incorporated Container with a threaded cap having a stepped sealing ring with a plurality of narrow sealing surfaces
US6360886B1 (en) 2000-03-13 2002-03-26 Kerr Corporation Capsule for use in preparing a dental amalgam
US6691901B2 (en) 2001-12-14 2004-02-17 Gateway Plastics, Inc. Closure for a container
US6802428B2 (en) * 2002-02-15 2004-10-12 Phoenix Closures, Inc. Apparatus and method allowing gas flowing into and/or out of container
JP4945552B2 (ja) * 2005-03-11 2012-06-06 ジェイティーアイ スヌース アーベー 箱と蓋
US7832577B2 (en) * 2005-07-26 2010-11-16 Rexam Prescription Products Inc. Child-resistant closure and package convertible to non-child-resistant operation
US7942281B2 (en) 2007-03-29 2011-05-17 Rexam Closure Systems, Inc. Closure and package with flexible base wall panel

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1087035B (de) * 1957-07-01 1960-08-11 Fritz Schulte Dichtungseinlage aus elastischem Kunststoff fuer Behaelterverschlusskappen
FR1322638A (fr) * 1962-05-17 1963-03-29 Ph Thiollier Et Ses Fils Timbale ou gobelet assurant de plus un bouchage hermétique du flacon ou bouteille
GB1127981A (en) * 1966-01-28 1968-09-25 Kenilworth Components Ltd Closure cap
FR1539307A (fr) * 1967-09-26 1968-09-13 Bouchon fileté présentant une étanchéité améliorée
USRE28521E (en) * 1970-02-21 1975-08-19 Container construction
CH564461A5 (en) * 1972-05-12 1975-07-31 Herkules Ag Cover for food container - has sealing lips forming enclosed ring space between container wall top surface and cover
FR2306895A1 (fr) * 1975-04-07 1976-11-05 Freda Tullie Capsule, en particulier pour la fermeture de recipients pourvus d'un goulot filete
CH607702A5 (en) * 1975-08-18 1978-10-13 Obrist Ag Albert Bottle closure, in particular a screw closure, and process for fastening the closure
AU521161B2 (en) * 1977-07-18 1982-03-18 Aluminum Company Of America Linerless plastics closure
US4209102A (en) * 1977-07-18 1980-06-24 Aluminum Company Of America Linerless plastic closure
AU5220679A (en) * 1978-11-06 1980-05-15 Hicks, D.M. Screw on cap with seal
US4322011A (en) * 1980-01-21 1982-03-30 Owens-Illinois, Inc. Side seal closure
DE8013051U1 (de) * 1980-05-14 1980-08-28 Saier E Kunststoffwerk Gmbh Verschlusskappe mit Dichtungsring
FR2496216A1 (fr) * 1980-12-17 1982-06-18 Ponsy Jacques Joint d'etancheite
DE3139526A1 (de) * 1981-10-05 1983-04-21 Albert Obrist AG, 4153 Reinach, Basel Verschlusskappe aus kunststoffmaterial
JPS58502165A (ja) * 1981-12-23 1983-12-15 アンステイテユ・パストウ−ル 特異抗体により認識し得る修飾核酸プローブを使用して核酸配列の存在を検出する方法
EP0093690A1 (fr) * 1982-05-04 1983-11-09 Crown Obrist AG Fermeture pour récipient
GB8328954D0 (en) * 1983-10-29 1983-11-30 Metal Box Plc One-piece plastics closure
US4588100A (en) * 1984-01-18 1986-05-13 Japan Crown Cork Co., Ltd. Pilfer-proof plastic closure for containers
US4741447A (en) * 1987-04-27 1988-05-03 American National Can Company Linerless cap closure

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Title
See references of WO9011231A1 *

Also Published As

Publication number Publication date
ATE79815T1 (de) 1992-09-15
KR920700153A (ko) 1992-02-19
AU5182890A (en) 1990-10-22
NO913756D0 (no) 1991-09-25
NO913756L (no) 1991-09-25
DD300528A5 (de) 1992-06-17
DE3909864A1 (de) 1990-09-27
DE4090417A1 (en) 1993-02-18
BR9007249A (pt) 1991-12-10
FI914448A0 (fi) 1991-09-23
EP0389815B1 (fr) 1992-08-26
JPH04504242A (ja) 1992-07-30
DE3909864C2 (fr) 1992-12-17
US5129533A (en) 1992-07-14
CA2012260A1 (fr) 1990-09-25
AU651947B2 (en) 1994-08-11
WO1990011231A1 (fr) 1990-10-04
DE59000268D1 (de) 1992-10-01
ES2045594T3 (es) 1994-01-16
DE4090417D2 (en) 1993-02-18
RU1838207C (ru) 1993-08-30
EP0389815A1 (fr) 1990-10-03

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