WO2002092451A1 - Couvercle - Google Patents

Couvercle Download PDF

Info

Publication number
WO2002092451A1
WO2002092451A1 PCT/US2002/015573 US0215573W WO02092451A1 WO 2002092451 A1 WO2002092451 A1 WO 2002092451A1 US 0215573 W US0215573 W US 0215573W WO 02092451 A1 WO02092451 A1 WO 02092451A1
Authority
WO
WIPO (PCT)
Prior art keywords
lid
aperture
closure member
plane
flexible arm
Prior art date
Application number
PCT/US2002/015573
Other languages
English (en)
Inventor
Brian Norman Clarke
Original Assignee
Solo Cup Company
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
Priority claimed from GB0112077A external-priority patent/GB2375531A/en
Application filed by Solo Cup Company filed Critical Solo Cup Company
Publication of WO2002092451A1 publication Critical patent/WO2002092451A1/fr

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
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B65D47/04—Closures with discharging devices other than pumps
    • B65D47/06—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages
    • B65D47/12—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having removable closures
    • B65D47/14—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having removable closures and closure-retaining means
    • B65D47/141—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having removable closures and closure-retaining means for stoppers
    • 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
    • B65D47/06—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages
    • 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444—Contact between the container and the lid
    • B65D2543/00592—Snapping means
    • B65D2543/00712—Snapping means on the lid
    • B65D2543/00722—Profiles
    • B65D2543/00731—Groove or hollow bead
    • 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444—Contact between the container and the lid
    • B65D2543/00592—Snapping means
    • B65D2543/00712—Snapping means on the lid
    • B65D2543/00787—Periphery concerned
    • B65D2543/00796—Totality

Definitions

  • lids may be used for hot and cold beverage containers, which are usually in the form of plastics or paper cups. Such lids are intended (o provide a degree of retention of the beverage in the container when that container is accidentally knocked, shaken or tilted, whilst also allowing the beverage to be consumed as required.
  • Such containers and such lids are single - use disposable items and, accordingly, must be capable of being produced at a low cost.
  • a typical disposable lid for such a beverage container is formed from thin plastics sheet material, for example by vacuum forming, and comprises a top panel with a downwardly depending peripheral rim.
  • the plastics material of the lid is somewhat resilient so that the lid can be fitted over the open top of a suitably sized beverage container so that the rim of the lid grips (he rim of the open end of the container, whereby the beverage is retained within the container.
  • a lid is provided with an aperture positioned at a point near to the rim of the lid.
  • the aperture is chosen so that it is sufficiently enlarged to allow a user to drink from the container without having to remove the lid itself, but sufficiently small to reduce the risk of spillage of the beverage if the container is tilted or shaken.
  • the aperture may be initially blocked by a press out tab or flap which can be pushed into the container when initial discharge of the beverage is required.
  • spillage may still occur upon undesired tilting or shaking of the container.
  • the tab or flap which covers the aperture has been pushed in there is no further means provided on the lid for re-sealing the aperture should the user wish to save some of the beverage for consumption at a later date.
  • two intersecting perpendicular slits are positioned at or around the centre of the lid so as to form four small flaps.
  • the slits are sufficiently long, and the material of the lid is sufficiently thin and flexible, to allow a straw to be inserted at the intersection of the slots to deflect these flaps and pass the latter to extend into the beverage within the container, the beverage then being sucked from the container through the straw.
  • the slit and straw arrangement largely prevents spillage of the beverage due to tilting or shaking, it does not completely prevent escape of the container contents, for example if the container is accidentally squeezed.
  • the use of a straw to remove the beverage from the container is not always desirable, particularly in the case of hot beverages such as tea or coffee
  • a container lid comprising:
  • closure member whilst still attached via the flexible arm portion to the main body portion, can be moved between a first position, in which the closure member closes off the aperture, and a second position, in which the aperture is open.
  • said body portion further incorporates a retaining element capable of receiving said closure member, wherein the closure member, in a said second position, whilst still attached via the flexible arm portion to the main body portion, can engage with the retaining element, to be retained thereby.
  • the lid which may, for example, be formed by a vacuum forming or similar process conducted on an initially flat, thin sheet of plastics material deformable or mouldable when sufficiently heated, comprises a peripheral edge lying substantially in a plane and wherein said flexible arm portion is in the form of a web, or strip, a of a thickness small in relation to its initial width and length and which in an initial position thereof, in which the closure member is out of engagement with said aperture, lies in said plane of said peripheral edge, in one position of said arm portion.
  • lids in accordance with the invention, by a vacuum forming or similar process, known per se, a large number of such lids are formed simultaneuously from an initially flat thin sheet of thermoplastics material heated to a temperature at which it is plastically deformable, and which process displaces, out of the plane of the sheet, portions defining a top and a surrounding rim of each lid.
  • said closure for each lid is fo ⁇ ried by similarly displacing the material of the sheet from said plane at a place in the sheet adjoining the displaced regions which will form the top and rim of the respective lid, and thereafter such sheet material is severed around the periphery of said rim of each lid to define said edge in the plane of such sheet material and likewise there is severed, from the sheet material, a portion, remaining attached to the body portion of the respective lid, at such rim, to form said flexible arm terminating in said closure.
  • the aperture in the lid may be formed at this stage by punching out a patch of the sheet material, in the top of the lid ,of a size and shape corresponding to the cross-sectional shape of the projection or protrusion, which forms said closure, or an area apt to form such aperture may simply be defined at this stage by forming a line of weakness in the respective lid top around the intended periphery of said aperture, to allow the aperture to be fo ⁇ ried at a later stage, for example by the end user of the lid, by punching out the region bounded by that line of weakness.
  • FIGURE 1 is a plan view of a first embodiment of the present invention with the aperture open.
  • FIGURE 2 is a cross-sectional view of the lid of Figure 1 along the line 1-1 in Figure 1.
  • FIGURE 3 is a plan view of the lid of Figure 1 with the aperture closed off.
  • FIGURE 4 is a plan view of a second embodiment of a lid according to the present invention showing the aperture in an open position.
  • FIGURE 5 is a cross-sectional view of the lid of Figure 4 along line 2-2 in Figure 4.
  • FIGURE 6 is plan view of the lid of Figure 4 showing the aperture closed off
  • FIGURE 7 is a plan view of the lid of Figure 4 showing the arm portion in a retained position.
  • FIGURE 8 is a plan view of a third embodiment of a lid according to the present invention showing the aperture in an open position.
  • FIGURE 9 is a cross-sectional view of the lid of Figure 8 along line 3-3.
  • FIGURE 10 is a plan view of the lid of Figure 8 showing the aperture closed off
  • FIG RE I I is a plan view of the lid of figure 8 showing the arm portion in its retained position.
  • lids shown in the drawings are made, as lids of this general sort commonly are, by subjecting a thin, initially flat, planar sheet of thermoplastics material to a forming process, such as a vacuum forming or pressing process, whilst it is at a temperature at which it is readily plastically deformable, the effect of the process being to displace some of the material of the sheet to predetermined degrees out of the original plane of the sheet material. After such deformation, the plastics material is severed around the moulded regions which define the products, to free the thus formed lids from the remainder of the sheet material.
  • the plastics material used is of a springy resilient character at temperatures below its softening point or range.
  • Figures 1 and 2 show a lid 1 having a circular body portion 2 and a flexible arm portion 3.
  • the body portion 2 includes a central region 4, surrounded by an elevated, generally planar circular annular region 5 incorporating an aperture 10.
  • the circular annular region 5 is bounded, at its outer edge, by a circumferential wall 6, sloping downwards and outwardly from the edge of circular region 5 to a level below that of the plane of central region 4.
  • the lower edge of wall 6 merges with a region of arcuate vertical cross-section, which defines a resilient rib 7 which projects outwardly from the bottom of the wall 6.
  • This arrangement known per se, facilitates drinking from the container to which in use the lid is fitted, by sipping through the aperture 10.
  • the arm portion 3 which is, in effect, a strip of the undefo ⁇ ned sheet material referred to, extends in a radial direction from a position on the rim 9 adjacent the aperture 10, and incorporates adjacent its end opposite the rim 9, a closure member 1 1, in the form of a hollow upwardly projecting, upwardly tapering dome ( likewise fo ⁇ ried by displacement of material from the original plane of the plastics sheet material during the vacuum forming process) of which the cross sectional size and shape at an intermediate height correspond with those of the aperture 10.
  • the end of the arm 10 on the side of the closure remote from the main body of the lid may, as shown, be formed with transverse ribs to facilitate manual gripping of said end.
  • arm 3 is that of the undeformed sheet plastics material so that the arm is actually very thin in relation to its length and breadth as measured in the plane of said sheet material and that consequently, the arm is very flexible in directions transverse to such plane.
  • the position of the closure member 1 1 along arm portion 3 is such that, by bending the arm portion over the top of the body portion 2, the closure member can be engaged with the aperture so as to seal it. Secure substantially sealing engagement being made possible by the taper on the closure member and the resilience of the material of the enclosure and the lid.
  • the lid can be fitted to a container, containing a beverage, having an open end which is of substantially the same radius as the rim 9 of the lid, or rather which is such that the lid is a light force fit over said open end.
  • the resilience of the skirt 8 allows the rim 9 of the lid to be stretched over the open end of the container until the rim of the container engages with the interior of the formation defining the hollow rib 7 of the lid.
  • the resilience of the hollow rib 7 serves to grip the rim of the container and provide a degree of retention of the beverage within the container.
  • the lid need not be circular, or indeed of any set radius, and can be made so as to fit any desired shape of container, for example a container with an open end of square or rectangular cross-section.
  • the surface relief of the lid, particularly the central portion need not be that shown in Figures 1-3, but may in fact be any desired configuration depending on the application or use of the container to which it is to be fitted.
  • Figures 4 and 5 show a second embodiment of a lid according to the present invention, which differs from that of Figures 1 to 3 only in that the aperture 10 is in a slightly different position on the annular region 5; that the annular region 5 further incorporates a recess 12 adjacent, and approximately equal in size to, the aperture 10, and that a major portion 13 of the a ⁇ n 3 is substantially narrower than the arm 3 in the embodiment of Figures I to 3.
  • the arm 3 extends outwardly from the rim along a radius of the body portion 2 which lies in the plane of symmetry of the depressed segment within the annular region 5, the aperture 10 and recess 12 being equally spaced from this plane of symmetry on opposite sides thereof.
  • the narrow portion 13 of arm 3 extends from adjacent the rim of the lid to a wider head portion 14, which cai ⁇ ies the closure member I I .
  • arm portion 12 when it is required to close off the aperture 10, arm portion 12 can be bent over the top of body portion 2, the narrow portion 13 allowing the arm portion to be twisted so that closure member 1 1 may engage with aperture 10 so as to plug it.
  • the closure member 1 1 when it is required to have the aperture open, so that the contents of a container to which the lid is fitted may be extracted, the closure member 1 1 can be moved from the aperture 10 and lodged securely in the recess 12, preventing any unwanted movement of the arm portion 13 which would interfere with sipping the contents of the container through the aperture 10.
  • the recess 12 which is of course also fo ⁇ ned during the vacuum forming operation, is a blind recess (providing no further clear hole through the lid), may have an internal shape and size conforming substantially to the external shape and size of the closure member, so that the closure member can be wedged snugly into the recess 13.
  • Figures 8- 1 1 show a yet further embodiment of a lid according to the present invention, which differs from that of Figures 4 to 7 only in the location and fo ⁇ n of the flexible a ⁇ n (referenced 15) and in the locations of the aperture 10 and recess 12.
  • the flexible a ⁇ n takes the form of an arcuate strip which closely follows the rim /edge 9 of the main body of the lid through an arc of approximately 90 degrees.
  • the arm is really part of the undeformed sheet material from which the lid was fo ⁇ ned and initially lies in the same plane as that undeformed sheet material.
  • the arm is in effect a flange - like continuation, in the last noted plane, of the rim edge of the lid but is separated from the lid over most of the length of the arm by an arcuate incision between the inner edge of that a ⁇ n and the edge proper of the main body of the lid.
  • the arm may remain attached to the rim throughout the whole length of the arm until the lid is to be used or is in use, with the arcuate incision referred to being replaced by a line of weakening (eg. an arcuate row of perforations) so that the end user can pull the main part of the a ⁇ n 15 from the lid rim when the closure element is to be used.
  • the flexible arm 15 comprises a narrow arcuate portion 16 and a head portion 17 carrying closure member 1 1 and provided with gripping ribs.
  • the end of arm 15 remote from the head portion 17 is continuous with the rim of the lid, the major part of the arm is separated from the lid by the arcuate incision referred to and head portion 17 is attached to a first position on the rim 9, radially opposite the aperture 10, by a narrow bridge 18 which holds the ami and the closure member in place until required.
  • the aperture 10 and the head portion with closure member 11 are diametrally opposite one another, i.e.
  • the retaining recess is located somewhat closer to the lid end of the arm than the aperture 10 is.
  • the end of arcuate portion 16 opposite the head portion 17 is attached to a second position around the rim 9, the second position lying between the positions around the rim of the head portion 17 and aperture 10, and separated from both by approximately 90°.
  • the aperture is required to be closed off, for example when it is intended to take a drink away for consumption at a later stage, the user may pull at point A and tear the tag so as to free the head portion 17.
  • the flexible arcuate portion 16 may be bent over the top of the body portion 2 so as to engage the closure member in the aperture 10 and plug the aperture accordingly.
  • the closure member 1 1 can be engaged with recess 12 on body portion 2 so as to retain the arm portion in a substantially fixed position to allow the user to drink easily through the aperture 10.
  • the lids in accordance with the invention can be manufactured, eg. by a vacuum forming process, substantially as easily as, and as cheaply as, conventional beverage container lids.
  • the material fo ⁇ ning the closure and flexible arm may, in this case, be formed from portions of the sheet material which would otherwise form part of the "scrap" remaining after removal of the formed lids from the remainder of the sheet material, so that no significant additional material cost is involved in manufacture of lids in accordance with the invention.
  • the position and dimensions of the arm portion, recess and aperture, with respect to the body portion are limited only by the fact that the user must be able to locate the closure member within the aperture or recess, whichever is desired, by bending the arm portion the required amount. Accordingly, the arm portion in the embodiment of Figures 8- 1 1 could equally be placed so that the arcuate portion stretches around any arc length of the rim 9 as long as the length of the arcuate a ⁇ n portion and position of attachment allowed the a ⁇ n portion to be bent so that there was a good engagement between the closure member and the aperture. For example, referring to Figures 8-1 1, it may be particularly convenient if the arcuate section of the a ⁇ n portion extended in a clockwise direction from the point of attachment such that the head portion and closing member were adjacent the aperture ⁇ 0.
  • closure member in the form of a hollow projecting element
  • the aperture could be in the form of a projecting spout and the closure member could be a hollow cap which fitted over the spout so as to seal off the aperture.
  • any number of arrangements are envisaged whereby, upon bending the a ⁇ n portion, a closure member can be used to shut off the aperture as required.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)

Abstract

L'invention concerne un couvercle, conçu pour des conteneurs de boissons chaudes ou froides à emporter, ce couvercle limitant le débordement du contenu et permettant à l'utilisateur de le conserver pour une utilisation ultérieure. Ce couvercle comprend une partie corps principal (2), comportant une ouverture (10) pour l'écoulement du contenu, et une partie languette flexible (3), reliée à la partie corps principal (2) et dotée d'un élément de fermeture (11). Lorsque l'utilisateur veut conserver le contenu du contenant pour une consommation ultérieure, il peut rabattre la partie languette flexible (3) sur le haut de la partie corps principal (2) et mettre l'élément de fermeture (11) en prise avec l'ouverture (10) pour fermer hermétiquement le conteneur. La partie corps principal (2) peut également comporter un évidement (12), conçu pour recevoir l'élément de fermeture (11). Lorsque l'utilisateur veut faire couler le contenu par l'ouverture (10), il peut mettre l'élément de fermeture (11) en prise dans l'évidement (12), de sorte que la partie languette (3) ne gène pas l'écoulement du contenu à travers l'ouverture (10).
PCT/US2002/015573 2001-05-17 2002-05-16 Couvercle WO2002092451A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB0112077A GB2375531A (en) 2001-05-17 2001-05-17 Container lid
GB0112077.3 2001-05-17
US09/924,418 2001-08-06
US09/924,418 US6644490B2 (en) 2001-05-17 2001-08-06 Lid

Publications (1)

Publication Number Publication Date
WO2002092451A1 true WO2002092451A1 (fr) 2002-11-21

Family

ID=26246086

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2002/015573 WO2002092451A1 (fr) 2001-05-17 2002-05-16 Couvercle

Country Status (1)

Country Link
WO (1) WO2002092451A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003042058A2 (fr) * 2001-11-13 2003-05-22 Dart Container Corporation Couvercle reutilisable dote d'un bouchon de fermeture
EP1628888A1 (fr) * 2003-05-28 2006-03-01 Capitol Cups, Inc. Couvercle pour gobelet jetable presentant une partie rabattable dans lequel l assemblage de couvercle/gobelet est resistant a ux fuites et aux chutes

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3031111A (en) * 1959-04-17 1962-04-24 Morton B Stull Dispensing type cap or closure
CH393955A (de) * 1960-12-20 1965-06-15 Haugolit Plastik Gefäss mit Verschlussdeckel aus Kunststoff
GB1600917A (en) * 1978-05-05 1981-10-21 Uson Plast Co Covers for waste containers
US4420092A (en) * 1982-09-01 1983-12-13 Mpl Inc. Tamper-resistant pharmaceutical vial and cap assembly
US4899902A (en) * 1989-05-15 1990-02-13 Demars Robert A No spill lid
US4949865A (en) * 1990-01-02 1990-08-21 Williams Industries, Inc. Container lid with integral stopper
JPH07309379A (ja) * 1994-05-11 1995-11-28 Hanshin Kasei Kogyo Kk 定量取出し容器
US5588561A (en) * 1995-03-10 1996-12-31 Ness; Richard B. Portable food container and method for storing and consuming dry and liquid food
WO1999047429A1 (fr) * 1998-03-18 1999-09-23 Sanford Redmond Emballage distributeur de type cylindrique et orifice de sortie solidaire, formes a partir d'une seule feuille
WO2000051908A1 (fr) * 1999-03-04 2000-09-08 Arco-Tech F. Del Bon Chapeau rapporte facilitant la boisson et le deversement pour boites-boisson

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3031111A (en) * 1959-04-17 1962-04-24 Morton B Stull Dispensing type cap or closure
CH393955A (de) * 1960-12-20 1965-06-15 Haugolit Plastik Gefäss mit Verschlussdeckel aus Kunststoff
GB1600917A (en) * 1978-05-05 1981-10-21 Uson Plast Co Covers for waste containers
US4420092A (en) * 1982-09-01 1983-12-13 Mpl Inc. Tamper-resistant pharmaceutical vial and cap assembly
US4899902A (en) * 1989-05-15 1990-02-13 Demars Robert A No spill lid
US4949865A (en) * 1990-01-02 1990-08-21 Williams Industries, Inc. Container lid with integral stopper
JPH07309379A (ja) * 1994-05-11 1995-11-28 Hanshin Kasei Kogyo Kk 定量取出し容器
US5588561A (en) * 1995-03-10 1996-12-31 Ness; Richard B. Portable food container and method for storing and consuming dry and liquid food
WO1999047429A1 (fr) * 1998-03-18 1999-09-23 Sanford Redmond Emballage distributeur de type cylindrique et orifice de sortie solidaire, formes a partir d'une seule feuille
WO2000051908A1 (fr) * 1999-03-04 2000-09-08 Arco-Tech F. Del Bon Chapeau rapporte facilitant la boisson et le deversement pour boites-boisson

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003042058A2 (fr) * 2001-11-13 2003-05-22 Dart Container Corporation Couvercle reutilisable dote d'un bouchon de fermeture
WO2003042058A3 (fr) * 2001-11-13 2003-12-18 Dart Container Couvercle reutilisable dote d'un bouchon de fermeture
US8631957B2 (en) 2001-11-13 2014-01-21 Dart Container Corporation Recloseable lid with closure plug
EP1628888A1 (fr) * 2003-05-28 2006-03-01 Capitol Cups, Inc. Couvercle pour gobelet jetable presentant une partie rabattable dans lequel l assemblage de couvercle/gobelet est resistant a ux fuites et aux chutes
EP1628888A4 (fr) * 2003-05-28 2008-10-15 Capitol Cups Inc Couvercle pour gobelet jetable presentant une partie rabattable dans lequel l assemblage de couvercle/gobelet est resistant a ux fuites et aux chutes

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