WO2009115811A1 - Contenant scellé de façon étanche - Google Patents

Contenant scellé de façon étanche Download PDF

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Publication number
WO2009115811A1
WO2009115811A1 PCT/GB2009/000744 GB2009000744W WO2009115811A1 WO 2009115811 A1 WO2009115811 A1 WO 2009115811A1 GB 2009000744 W GB2009000744 W GB 2009000744W WO 2009115811 A1 WO2009115811 A1 WO 2009115811A1
Authority
WO
WIPO (PCT)
Prior art keywords
foil
container
container body
closure means
cap
Prior art date
Application number
PCT/GB2009/000744
Other languages
English (en)
Inventor
Anthony Henry Joseph Fraser
John Hein
Original Assignee
Meadwestvaco Corporation
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 GB0805113A external-priority patent/GB0805113D0/en
Priority claimed from GB0809263A external-priority patent/GB0809263D0/en
Application filed by Meadwestvaco Corporation filed Critical Meadwestvaco Corporation
Priority to US12/922,870 priority Critical patent/US20110100988A1/en
Priority to AT09721829T priority patent/ATE548289T1/de
Priority to EP09721829A priority patent/EP2268557B1/fr
Priority to CN2009801098146A priority patent/CN102046489A/zh
Priority to BRPI0908977-2A priority patent/BRPI0908977A2/pt
Publication of WO2009115811A1 publication Critical patent/WO2009115811A1/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
    • B65D51/00—Closures not otherwise provided for
    • B65D51/18—Arrangements of closures with protective outer cap-like covers or of two or more co-operating closures
    • B65D51/20—Caps, lids, or covers co-operating with an inner closure arranged to be opened by piercing, cutting, or tearing
    • B65D51/22—Caps, lids, or covers co-operating with an inner closure arranged to be opened by piercing, cutting, or tearing having means for piercing, cutting, or tearing the inner closure
    • B65D51/228—Caps, lids, or covers co-operating with an inner closure arranged to be opened by piercing, cutting, or tearing having means for piercing, cutting, or tearing the inner closure a major part of the inner closure being removed from the container after the opening
    • 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
    • B65D41/08—Threaded or like caps or cap-like covers secured by rotation engaging a threaded ring clamped on the external periphery of the neck or wall
    • 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
    • B65D2251/00—Details relating to container closures
    • B65D2251/0003—Two or more closures
    • B65D2251/0006—Upper closure
    • B65D2251/0018—Upper closure of the 43-type
    • 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
    • B65D2251/00—Details relating to container closures
    • B65D2251/0003—Two or more closures
    • B65D2251/0068—Lower closure
    • B65D2251/0093—Membrane

Definitions

  • the present invention relates to containers, and particularly relates to containers for supplying beverages to consumers.
  • the invention has particular utility for the storage and supply of carbonated and other sparkling drinks, but may also be. used with other types of drinks or other contents.
  • the present invention aims to provide a practical beverage container, which may be a wide-mouth container (although the invention is also applicable to other types of container, including those with a narrow-mouth opening such as a bottle).
  • the present invention seeks to provide a container with closure means capable of with-standing increased pressure within the container, e.g. due to the storage of carbonated or other gas containing liquids and/or elevated temperatures and/or shock loads.
  • the present invention also seeks to provide a container in which the bond between the foil seal and the container can be more easily broken upon twisting of the closure means in an opening direction.
  • a first aspect of the invention provides a container for the storage of a carbonated drink, or other contents, comprising a container body including an opening that defines an axis and removable closure means for closing said opening, the closure means comprising a foil for bonding to the container so as to close said opening in a gas-tight manner, the foil also being connected to, or interacting with, the closure means, such that initial rotation, or other movement, of the closure means in an opening direction relative to the container body distorts or deforms the foil in a manner such that further rotation, or other movement, of the closure means results in a peel force being applied to the bond between the foil and the container.
  • the arrangement is preferably such that initial rotation of the closure in an opening direction is permitted without disturbing the bond between the foil and the container body. However, this initial rotation moves the closure axially away from the container body such that, upon further rotation of the closure, a peal force is applied to the bond rather than a shearing force.
  • This may be achieved, for example, by converting rotation of the closure into a lifting action which is applied to the foil
  • the closure means or cap provides physical support for the foil, e.g. by limiting the extent to which it can be distorted by pressure increases within the container and/or by reinforcing the connection between the foil and the container.
  • the cap may be generally annular so it lies over the perimeter of the foil around the periphery of the opening and thus assists in holding the foil in contact with the container. In some cases this may also provide sufficient obstruction to limit bowing out of the foil due to internal pressure but, preferably, the cap extends across the entire foil both to provide further obstruction to deflection of the foil, particularly at the centre thereof, but also to protect the foil against damage from physical contact with external objects which might puncture the foil and/or impair its integrity. The cap thus strengthens and/or protects the connection of the foil with the container and provides puncture protection for the foil.
  • a projection is provided on the underside of the closure means to reinforce the bond between the foil and the container body.
  • the projection may comprise a bore seal which presses the foil into contact with an internal surface of the container body. This also facilitates the formation of an induction weld therebetween.
  • the cap may be made from a range of materials but is preferably formed from a plastics material such as polypropylene (PP), polyethylene (PE) or polyethylene terephthalate (PET) and may be formed by injection moulding.
  • PP polypropylene
  • PE polyethylene
  • PET polyethylene terephthalate
  • the cap is releasably secured to the container body, by a snap-fit and/or screw thread (either directly or via a collar) which securely hold it on the container and is removable from the container body by rotating relative thereto.
  • Preferred embodiments of the invention have a cap-on-collar closure means in which the cap is secured to the container body via a collar so that the container body does not need to be provided with thread features. Suitable forms of capon-collar closure means are described in WO2006/000774, WO2007/091068 and WQ.2008/012539. Venting means are also preferably provided to allow pressure within the container to be vented prior to complete removal of the cap and/or the foil. Controlled venting may, for example, be provided as the foil is peeled off the container.
  • the foil is preferably attached to the container around a perimeter of the opening by induction heating.
  • the attachment to the container whilst being strong enough to withstand the desired level of pressure within the container, is weaker than the attachment to the cap so that upon removal of the cap, the foil is separated from the container but remains attached to and is removed with the cap.
  • the foil is secured to the closure means so as to be removed therewith when the closure means is removed from the container body; so the container can be opened in a single step.
  • the foil should be attached more securely to the closure means than it is to the container body so it remains attached thereto when the bond with the container body is broken.
  • the foil may be mechanically or adhesively secured to the closure means or welded thereto
  • references to foil herein include impervious laminates comprising one or more layers which give the foil strength and one or more layers for attaching the upper and/or lower surface of the foil to another article. Such foils are widely used in other fields. Where the foil is to be secured by induction heating, an electrically conductive layer is required. This is usually a metallic layer and most commonly a layer of aluminium. The electrically conductive layer is typically provided with one or more plastic coatings, e.g. of polyethylene, which melt when the electrically conductive layer is heated to bond the foil to an article held in contact therewith. Such foils can be bonded to both glass and plastic articles. Preferably, the foil is constructed so that it can be pre-shaped to facilitate easy assembly of the closure means and bonding to the container body.
  • the foil is preferably secured to the container in a manner capable of withstanding elevated internal pressures.
  • Laminated foils comprising two or more layers of aluminium are now available which are capable of withstanding pressures of up to 5-6 bar (as might arise if a carbonated drinks container is subject to high temperatures).
  • the foil also protects the container from ingress of gas, so helps prevent contamination of the beverage and prevent it becoming stale.
  • the beverage container can have a shelf-life of several months, eg 4 months or more (as typically required for beers and other carbonated drinks sold in containers).
  • the foil may be constructed so as to reduce the amount by which it deflects under a given internal pressure. This may be achieved, for example, by suitable choice of materials for a laminate foil.
  • a crossed-laminate may be used, i.e. in which two such layers are orientated in different directions (preferably perpendicular to each other).
  • the upper surface of the foil comprises aluminium, ie without a plastic coating, to help create a strong bond.
  • the plastic coatings on the two sides of the foil it is desirable in some embodiments for the plastic coatings on the two sides of the foil to have different melting points.
  • the foil may also provide tamper evidence in that if the foil is intact it provides the consumer with reassurance that the product has not been tampered with or previously opened or otherwise exposed to the external atmosphere. This function is further enhanced if the cap is formed of a transparent material.
  • the container body is typically formed of a plastics material, e.g. polyethylene terephthalate (PET), or of glass.
  • PET polyethylene terephthalate
  • the container may be shaped to resemble a conventional drinking vessel, e.g. a beer glass, shaped in the form of a bottle or of some other shape.
  • the opening of the container body preferably is a wide-mouth opening.
  • a wide-mouth opening is meant (at least in its broadest sense) an opening of a size suitable for a person to drink from the container in the same manner as from a drinks glass or similar drinking vessel.
  • the wide-mouth opening of the container generally renders the container suitable as a drinking vessel, from which a beverage supplied in the container may be conveniently drunk (in contrast to conventional narrow-necked bottles and ring-pull cans which generally are not regarded as comfortable drinking vessels).
  • this requirement means that the diameter of the wide-mouth opening of the container will normally need to be at least 40mm, preferably at least 45mm, and more preferably at least 50mm.
  • an excessively wide opening is generally difficult for the consumer to drink from, and thus the wide-mouth opening preferably has a diameter no greater than 150mm, more preferably no greater than 100mm, and especially no greater than 80mm.
  • a particularly preferred diameter range for the wide-mouth opening is 50 to 80mm, and examples of particular preferred diameters included 53mm and 63mm.
  • the container may also have a narrow-mouth opening, e.g. a bottle-type opening.
  • a narrow-mouth opening e.g. a bottle-type opening.
  • Such an opening may for example, have a diameter of 40mm or less.
  • Conventional standard bottle mouth sizes include diameters of 28mm and 38mm and the opening may be of this size.
  • the container body (whether wide-mouth or narrow-mouth) preferably has no thread or thread segments on its exterior so a smooth lip can be provided. Consequently, the container body preferably is comfortable for a consumer to drink directly from the container body.
  • the containers described herein may be used for other types of beverages
  • the invention is particularly suited to the storage and " supply of carbonated and other sparkling ' drinks, for example beers, ciders, sparkling wines (including champagne), other fizzy alcoholic beverages, and non-alcoholic fizzy and sparkling beverages, including sparkling water and carbonated soft drinks or the storage of any other liquid capable of generating an elevation pressure within the container.
  • the invention also relates to the use of a beverage container of the type described for containing a carbonated beverage and to a method of sealing such a container.
  • Figures IA to ID show views of a first embodiment of a container according to the present invention.
  • Figures IA and IB are perspective views illustrating folding over of a foil seal.
  • Figure 1C is a cross-sectional view through the container when closed and Figure ID is an enlarged view of part of Figure 1C during removal of the closure means.
  • Figures 2A to 2D show views of a second embodiment of a container according to the present invention.
  • Figure 2A is a cross-sectional view of the container when closed and Figure 2B is an enlarged view of part of Figure 2A.
  • Figure 2C is a cross-sectional view during removal of the closure, means and Figure 2D is an enlarged view of part of Figure 2C.
  • Figure 3 is a cross-sectional view of part of a modification of the second embodiment shown in Figure 2.
  • Figures 4A to 4D show views of a third embodiment of a container according to the present invention.
  • Figure 4A is a perspective view of a foil seal secured to a container body.
  • Figure 4B is a cross-sectional view of the container when closed.
  • Figure 4C is a perspective view of the foil seal during removal of the closure means (which is omitted for clarity).
  • Figure 4D is a cross-sectional view of the container during removal of the closure means.
  • Figure 5 is a perspective view of a foil seal secured to a container body in a modification of the third embodiment shown in Figure 4.
  • Figures 6A to 6D show views of a fourth embodiment of a container according to the invention.
  • Figure 6A is a perspective view of the parts thereof prior to assembly.
  • Figure 6B is a cross-sectional view of the container when closed.
  • Figures 6C and 6B are perspective views of the foil seal during removal of the closure means (which is omitted for clarity).
  • Figures 7 A - 7B show views of a fifth embodiment of the invention.
  • Figure 7A is a cross-sectional view of part of the container when closed and Figure 7B is a similar view during removal of the closure means.
  • Figures 8A - 8F show views of a sixth embodiment of the invention.
  • Figure 8A is a cross-sectional view of part of a closure, prior to assembly (with the container body omitted for clarity).
  • Figure 8B is a cross-sectional view of the closure once, assembled on a container body.
  • Figure 8C is a cross-sectional view illustrating opening of the container.
  • Figure 8D is a cross-sectional view illustrating re- closure of the container.
  • Figure 8E is an enlarged cross-sectional view similar to Figure 8B and Figure 8F is a perspective view from beneath, part broken away, of components of the closure shown in Figures 8A-8E.
  • Figures 9A - 9D show a further embodiment of the invention.
  • Figure 9A is a cross-sectional view of a closure, prior to assembly with a container body.
  • Figure 9B is a cross-sectional view of the closure once assembled on the container body.
  • Figure 9C is a cross-sectional view illustrating opening of the container.
  • Figure 9D is a cross-sectional view illustrating re-closure of the container DESCRIPTION OF PREFERRED EMBODIMENTS
  • Figure 1 shows a container comprising a container body 1 with a widemouth opening IA surrounded by a lip IB, a foil seal 2 applied across the opening IA and closure means in the form of a cap 3 and collar 4.
  • the foil seal 2 is secured to the top of the lip IB, e.g. by induction welding, along a weld line 2A as shown in Figure IA.
  • the foil seal 2 is of a diameter which projects beyond the lip IB of the container body 1 and the outer part thereof is then folded back on itself as shown in Figure IB.
  • the folded back portion 2B of the foil which has a pleated form, is then welded to the inner surface of the cap 3 along the weld line 2C which is radially inwards of the weld line 2A.
  • Figure 1C shows a cross-section of the cap 3 when in the closed position on the container body 1.
  • the portion 2B of the foil becomes taut. so further rotation and axial movement of the cap 3 applies a peeling force to the; bond 2A via the portion 2B as illustrated in Figure ID.
  • the force applied by the portion 2B to the bond 2A has both upward and inward components, as indicated by arrow A3, so that the foil 2 is peeled away from the container lip IB.
  • the upper surface of the foil may comprise an aluminium . layer.
  • Figure 2 illustrates a second embodiment having a container body 11, a double layer foil 12 instead of a folded back foil, a cap 13 and collar 14.
  • the foil 12 comprises an upper foil 12A and a lower foil 12B.
  • the lower foil 12A is welded to the top of the lip HA of the container body along weld line 12C.
  • the upper foil 12A has its lower surface welded to the upper surface of the lower foil 12B around the perimeter thereof along weld line 12D (see Figure 2B) and has its upper surface welded to the interior of the cap i3 at a weld area 12E radially inward of the weld lines 12C and 12D.
  • the upper and lower foil 12A, 12B are thus bonded to each other only around their perimeter and so form an empty pillow, e.g. in the form of an empty, circular tea-bag.
  • Figure 3 illustrates a modification of the embodiment shown in Figure 2.
  • the lower foil 12B is bonded to an inner portion of the container body lip HA (rather than an upper portion or outer portion thereof).
  • the underside of - the cap 13 is also provided with a projection 13A which, when the cap is in the closed position, provides reinforcement of the bond between the lower foil 12B and the container body 11 by pressing against the perimeter of the double foil layer.
  • the peel force acts upwards and outwards on the bond between the lower foil 12B and the container body 11, ie the peel initiates at the radially inward end of the welded bond.
  • a further embodiment of this type is described below with reference to Figures 8A to 8F.
  • Figures 4-6 illustrate further embodiments in which this initial movement is enabled or facilitated by a line of weakness or tear initiator in the foil seal.
  • foils are now available which are capable of withstanding very high bursting pressures. This type of foil is very strong so it is very difficult to tear or rupture the foil unless a weak point or tear initiator is provided therein (unless the foil is subject to cutting or piercing by a sharp edge or sharp point).
  • the embodiment shown in Figure 4 comprises a container body 21, a foil seal 22, a cap 23 and a collar 24.
  • the foil 22 is welded to the container lip 21A along a weld line 22A and projects beyond the lip as shown in Figure 4A.
  • the projecting portion of the foil 22 is provided with one or more tear initiators, e.g. in the form of a slit or cut-out 22B and the upper surface of the foil 22A is locally welded to the interior of the cap 23 by a weld area 22C on the projecting portion of the foil and adjacent the cut-out 22B.
  • the foil 22 is provided with a plurality (four in the example shown) of tear initiators 22B at spaced apart positions around its perimeter and a weld area 22C is provided adjacent each of these for bonding the foil 22 to the interior of the cap 23.
  • Figure 6 shows another embodiment in which a line of weakness is provided in a foil in order to permit an initial unscrewing movement of the cap so that a peel force can then be applied to the foil.
  • This embodiment comprises a container body 31, a foil 32, a cap 33 and a collar 34.
  • the foil 32 is provided with an upwardly projecting tab 32A and this is secured to the interior of the cap 33 by a localised weld area 32B.
  • the foil 32 also has a circular line of weakness 32C at a radius slightly smaller than the radius of the container lip 3 IA and a tear initiator 32D at the foot of the tab 32A.
  • the foil 32 is bonded to the upper surface of the container lip 31A along a weld line 32E.
  • the tab 32A may be omitted and the localised weld area 32B provided on a portion of the foil adjacent the tear initiator 32D.
  • the weld area 32B may be in line with the weld line 32E although the tear initiator 32D should, of course, be provided just outside the weld line.
  • Figure 7 illustrates an embodiment which operates on similar principles to those described above although implemented in a different manner.
  • This embodiment comprises a container body 41, a foil 42 on a relatively rigid substrate 42A, a cap 43 and a collar 44.
  • the foil 42 is provided on the underside of a substrate, e.g. a relatively rigid sheet 42A formed of paperboard or a plastics material, and is bonded to the container lip 41A along a weld line 42B.
  • the sheet 42A projects beyond the lip 41A of the container 41 and lies above an internal projection 43A of the cap 43.
  • FIGS 8A-8F illustrate a sixth embodiment which is a further development of that shown in Figure 3 above-
  • a pre-formed foil 52 is mechanically secured to the underside of a cap 53 by engaging apertures 52A in the foil over projections 53A on the underside of the cap 53 and then pressing a securing plate 55 onto the projections 53A so a central portion of the foil is clamped to the underside of the cap 53.
  • Other forms of mechanical connection may be used.
  • the projections 53A may, for example, be hot-studded once the foil 52 is in place so as to enlarge their heads so the foil cannot be removed therefrom.
  • An adhesive connection or welded bond may also be used (as in the embodiments described above).
  • An annular projection 53B is also provided on the underside of the cap 53 to form a bore seal which fits against the interior of a container body (as described further below).
  • the foil 52 is preferably, pre-formed so that an outer portion thereof fits around the bore seal 53B and lies against an outer surface thereof (as shown in Figure 8B).
  • the outer portion of the foil 52 is trapped between the bore seal 53B and an internal surface 51B of the container body.
  • the lip of the container body 51 provides a mass of plastic material behind the surface 51B. This is important as part of the surface tends to melt when bonded to the foil 52. As shown in Fig 8A, prior to bonding, the surface 51B has a convex form whereas after bonding it is substantially flat (as shown in Fig 8B).
  • the bore seal 53B applies pressure to the foil 52 to hold it against surface 51B. It thus re-enforces the bond between the foil 52 and the container body 51.
  • forces on the foil 52 due to elevated pressure with the container can only be applied parallel to the plane of the bond between the foil 52 and the surface 51B, i.e. as a shear force to the bond (and not as a peel-force).
  • the above arrangement is also advantageous as, during assembly, the bore seal 53B holds the foil 52 tightly against the surface 51B thus facilitating the formation of a bond therebetween by induction welding.
  • the above arrangement employs a welded bond between the foil 52 and the container body and a welded, mechanical or adhesive attachment of the foil 52 to the cap 53. If the foil is welded to both the container body and the cap, the lower surface of the foil 52 is required to bond to the surface 51B of the container and the upper surface of the foil 52 is bonded to the underside of the cap 53. However, the formation of a bond between the upper surface of the foil 52 and the bore seal 53B should be avoided.
  • One way to do this is to laminate a different material onto the two sides of the foil 52 with different melting temperatures, eg two different forms of polyethylene.
  • the upper surface may be designed to weld at a given temperature, say 210 degrees C, and the lower surface at a lower temperature, say 190 degrees C.
  • a welding temperature between these two temperatures can therefore be used to weld the lower surface of the foil to the surface 51B without the upper surface of the foil being welded to the bore seal 53B.
  • a higher welding temperature can then be used in a localised area (away from the bore seal 53B) to weld the upper surface of the foil to the underside of the cap.
  • the above feature can be used to avoid the Upper surface of the foil becoming welded to the bore seal, however, the foil is attached to the cap.
  • the plastic coating on the upper side of the foil can be omitted or removed in the vicinity of the bore seal.
  • Figure 8D illustrates re-application of the cap 53 to the container body 51 in this manner.
  • Figure 8E is an enlarged version of Figure 8B.
  • a further advantage of the arrangement shown is that the bore seal feature 53B can be formed in an injection moulding without the need to use side cores in the mould as undercut features of the skirt of the cap 53 can be formed via aperture 53D provided in the upper portion of the cap 53. It also shows that the edge of the foil 52 adjacent the bore seal 53B stops short of the underside of the cap, This is important to avoid the edge of foil 52 boding to the cap.
  • Figure 8F shows a view of the cap from the underside, showing the projections 53A for receiving the clamping plate 55 and the annular bore seal 53B.
  • closure comprises a cap which fits over a collar by means of which the cap is secured to the container body
  • Other forms of closure may however be used which do not employ such a collar.
  • a cap may, for example be applied directly to the container body and secured thereto by a band or collar around the exterior of the cap, eg as described in WO2006/003453.
  • Other fastening means may be used to help secure the cap to the container body.
  • the provision of a thread on the container body is preferably avoided.
  • the provision of thread features on container bodies having a narrower opening, eg a bottle neck may be acceptable.
  • FIGs 9A-9D illustrate another embodiment in which a seal similar to that described above in relation to Figure 8 is used with a single piece closure 63 applied to a narrow-mouth opening of a container body 61.
  • the closure 63 is designed to be pushed onto the container body 61 in an axial direction so that parts of a skirt 63C of the cap snap-fit with features 61C of the neck of the container body 61 but to be released from engagement with those features by rotation between the cap 63 and the container body 61.
  • a closure (without a foil seal) is described further in WO2007/057659.
  • a pre-formed foil 62 is adhesively secured to the underside of the cap 63 as shown in Fig 9B (although other forms of connection may be used).
  • An annular projection 63B is provided on the underside of the cap 63 to form a bore seal which fits against the interior of the container body 61.
  • the foil 62 is pre-formed so that an outer portion thereof fits around the bore seal 63B and lies against an outer surface thereof (as shown in Figure 9B).
  • the outer portion of the foil 62 is trapped between the bore seal 63B and an internal surface 61B of the container body,
  • the foil preferably has a plastic coating on its underside for bonding to the surface 61B but no coating on its upper side so the metal layer of the foil can be adhered directly to the underside of the cap 63.
  • the bore seal 63B applies pressure to the foil 62 to hold it against surface 61B. It thus re-enforces the bond between the foil 62 and the container body 61. In the closed position shown in Figure 9B, forces on the foil 62 due to elevated pressure with the container can only be applied parallel to the plane of the bond between the foil 62 and the surface 61B, i.e. as a shear force to the bond (and not as a peel-force).
  • the closure Whilst, in many cases, the closure will be secured to the container body such rotation of the closure relative to the container body is required to remove the closure therefrom, in some cases other forms of movement may be required, eg a lifting, bending or prising movement, instead of rotation. Examples of this are also described in WO2006/003453. In such cases, the closure may still be rotated to some degree in order to twist the foil and hence initiate a peeling force on the foil prior to the closure being removed by a lifting, bending or prising movement. In other cases, a pealing action may be initiated by a lifting, bending or prising movement without the need for any rotation of the closure. Embodiments such as those shown in the Figures may, for example, be modified so the a pealing action is initiated by lifting a portion of the closure.
  • all the above embodiments decouple the point of attachment of the foil to the container from its attachment to the cap thus allowing the cap to start turning and lifting off before meeting the resistance of the shear strength of the foil to container bond and the geometry is arranged such that the force then applied to the foil to container bond is a peeling force so the foil can be peeled away from the container.
  • the embodiments described enable a foil to be used so as to provide a better seal of the container than provided by conventional caps and seals, enables the majority of the pressure retention to be provided by the foil (so reducing the performance requirements, and hence the cost, of the cap) and provides the consumer with a convenient and intuitive opening action for removing the cap and the foil in one simple action.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Table Devices Or Equipment (AREA)
  • Glass Compositions (AREA)
  • Packages (AREA)

Abstract

L'invention porte sur un contenant (1) destiné à stocker une boisson gazéifiée. Le contenant comporte un corps de contenant muni d’une ouverture qui définit un axe et d’une fermeture amovible (3) pour fermer l'ouverture. La fermeture comporte une feuille (2) destinée à se lier au contenant pour fermer l'ouverture d'une façon étanche aux gaz. La feuille est également reliée ou interagit avec la fermeture, de telle sorte qu'une rotation initiale de la fermeture dans une direction de relâchement par rapport au corps de contenant gauchit ou déforme la feuille d'une façon telle qu'une rotation supplémentaire de la fermeture conduit à l'application d'une force de pelage à la liaison entre la feuille et le contenant.
PCT/GB2009/000744 2008-03-19 2009-03-19 Contenant scellé de façon étanche WO2009115811A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US12/922,870 US20110100988A1 (en) 2008-03-19 2009-03-19 Sealed container
AT09721829T ATE548289T1 (de) 2008-03-19 2009-03-19 Abgedichteter behälter
EP09721829A EP2268557B1 (fr) 2008-03-19 2009-03-19 Contenant scellé de façon étanche
CN2009801098146A CN102046489A (zh) 2008-03-19 2009-03-19 密封容器
BRPI0908977-2A BRPI0908977A2 (pt) 2008-03-19 2009-03-19 Recipiente selado

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB0805113.8 2008-03-19
GB0805113A GB0805113D0 (en) 2008-03-19 2008-03-19 Container
GB0809263.7 2008-05-22
GB0809263A GB0809263D0 (en) 2008-05-22 2008-05-22 Container

Publications (1)

Publication Number Publication Date
WO2009115811A1 true WO2009115811A1 (fr) 2009-09-24

Family

ID=40675563

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2009/000744 WO2009115811A1 (fr) 2008-03-19 2009-03-19 Contenant scellé de façon étanche

Country Status (6)

Country Link
US (1) US20110100988A1 (fr)
EP (1) EP2268557B1 (fr)
CN (1) CN102046489A (fr)
AT (1) ATE548289T1 (fr)
BR (1) BRPI0908977A2 (fr)
WO (1) WO2009115811A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012007708A1 (fr) * 2010-07-14 2012-01-19 Threadless Closures Ltd Fermeture pour un contenant

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101109886B1 (ko) * 2009-07-06 2012-02-14 (주)아이디플라텍 상하 승강에 의하여 인출되는 껌 추출 용기
EP2804820A1 (fr) * 2012-01-20 2014-11-26 Ardagh MP Group Netherlands B.V. Unité formant couvercle comprenant un adaptateur, un couvercle et un film de scellement pour un contenant
GB201307767D0 (en) * 2013-04-30 2013-06-12 Threadless Closures Ltd A closure for a container
US20150183626A1 (en) * 2014-01-02 2015-07-02 Tresa Glenn Protzman Process for bottling a mixed beverage into a glass
US11136167B2 (en) 2014-06-26 2021-10-05 Plastipak Packaging, Inc. Plastic container with threaded neck finish
CN106573695B (zh) * 2014-06-26 2020-03-24 普拉斯蒂派克包装公司 具有螺纹颈部瓶口的塑料容器
US9856059B2 (en) * 2016-01-15 2018-01-02 Owens-Brockway Glass Container Inc. Container with abrasion resistant rim

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4359169A (en) * 1981-08-28 1982-11-16 Container Corporation Of America Container end closure arrangement
US4782967A (en) * 1987-01-05 1988-11-08 Thomas Robert E Medicine vial opener
WO2006000774A1 (fr) * 2004-06-23 2006-01-05 Dubois Limited Recipient pour boisson
WO2006002922A1 (fr) * 2004-07-01 2006-01-12 Rainer Ammann Procede permettant de detacher ou de separer une pellicule d'etancheite scellee sur le bord du goulot d'une bouteille ou analogue et bouchon filete permettant la mise en oeuvre dudit procede

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4359169A (en) * 1981-08-28 1982-11-16 Container Corporation Of America Container end closure arrangement
US4782967A (en) * 1987-01-05 1988-11-08 Thomas Robert E Medicine vial opener
WO2006000774A1 (fr) * 2004-06-23 2006-01-05 Dubois Limited Recipient pour boisson
WO2006002922A1 (fr) * 2004-07-01 2006-01-12 Rainer Ammann Procede permettant de detacher ou de separer une pellicule d'etancheite scellee sur le bord du goulot d'une bouteille ou analogue et bouchon filete permettant la mise en oeuvre dudit procede

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012007708A1 (fr) * 2010-07-14 2012-01-19 Threadless Closures Ltd Fermeture pour un contenant
WO2012007707A3 (fr) * 2010-07-14 2012-03-08 Threadless Closures Ltd Fermeture destinée à un récipient

Also Published As

Publication number Publication date
CN102046489A (zh) 2011-05-04
US20110100988A1 (en) 2011-05-05
EP2268557B1 (fr) 2012-03-07
BRPI0908977A2 (pt) 2015-08-04
ATE548289T1 (de) 2012-03-15
EP2268557A1 (fr) 2011-01-05

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