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WO2025003662A1 - Fermeture pour un récipient pourvu d'un col - Google Patents

Fermeture pour un récipient pourvu d'un col Download PDF

Info

Publication number
WO2025003662A1
WO2025003662A1 PCT/GB2024/051636 GB2024051636W WO2025003662A1 WO 2025003662 A1 WO2025003662 A1 WO 2025003662A1 GB 2024051636 W GB2024051636 W GB 2024051636W WO 2025003662 A1 WO2025003662 A1 WO 2025003662A1
Authority
WO
WIPO (PCT)
Prior art keywords
closure
container
neck
top deck
skirt
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
PCT/GB2024/051636
Other languages
English (en)
Inventor
Rodney Malcolm Druitt
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.)
Creanova Universal Closures Ltd
Original Assignee
Creanova Universal Closures Ltd
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 AU2023902045A external-priority patent/AU2023902045A0/en
Application filed by Creanova Universal Closures Ltd filed Critical Creanova Universal Closures Ltd
Publication of WO2025003662A1 publication Critical patent/WO2025003662A1/fr
Anticipated expiration legal-status Critical
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
    • B65D41/32—Caps or cap-like covers with lines of weakness, tearing-strips, tags, or like opening or removal devices, e.g. to facilitate formation of pouring openings
    • B65D41/325—Caps or cap-like covers with lines of weakness, tearing-strips, tags, or like opening or removal devices, e.g. to facilitate formation of pouring openings with integral internal sealing means
    • 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
    • B65D41/32—Caps or cap-like covers with lines of weakness, tearing-strips, tags, or like opening or removal devices, e.g. to facilitate formation of pouring openings
    • B65D41/34—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt
    • B65D41/3423—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt with flexible tabs, or elements rotated from a non-engaging to an engaging position, formed on the tamper element or in the closure skirt
    • B65D41/3428—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt with flexible tabs, or elements rotated from a non-engaging to an engaging position, formed on the tamper element or in the closure skirt the tamper element being integrally connected to the closure by means of bridges
    • 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
    • B65D41/32—Caps or cap-like covers with lines of weakness, tearing-strips, tags, or like opening or removal devices, e.g. to facilitate formation of pouring openings
    • B65D41/34—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt
    • B65D41/3442—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt with rigid bead or projections formed on the tamper element and coacting with bead or projections on the container
    • B65D41/3447—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt with rigid bead or projections formed on the tamper element and coacting with bead or projections on the container the tamper element being integrally connected to the closure by means of bridges
    • 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
    • B65D2401/00—Tamper-indicating means
    • B65D2401/15—Tearable part of the closure
    • B65D2401/20—Frangible elements completely enclosed in closure skirt
    • 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
    • B65D2401/00—Tamper-indicating means
    • B65D2401/15—Tearable part of the closure
    • B65D2401/30—Tamper-ring remaining connected to closure after initial removal
    • 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
    • B65D2401/00—Tamper-indicating means
    • B65D2401/50—Tamper-band co-operating with intermediate ring connected to the container

Definitions

  • the present disclosure relates to a closure.
  • the disclosure relates to a closure suitable for containers adapted to receive a beverage and having a neck.
  • containers can suffer from manufacturing defects or damage during use and thereby the quality of the neck finish of such containers can be variable, especially if such containers undergo re-use. Variability in the quality of the neck finish can compromise the ability of closures, particularly linerless or one-piece closures, to form an effective robust seal with the neck finish.
  • closures particularly linerless or one-piece closures
  • an alcoholic beverage can undergo oxidation in the event of oxygen being able to infiltrate the container during storage.
  • the present disclosure is directed to a closure that is suitable for sealing containers having a neck and, in particular, to sealing containers adapted to receive beverages.
  • a closure for a container adapted to receive a beverage and having a neck, the neck having a collar, an end finish defining an opening, an outside sealing surface extending from the end finish to an outside sealing surface parting line, and an outer surface distal the outside sealing surface parting line
  • the closure comprising: a top deck; a skirt extending from the top deck in an axial direction to define a cavity, the skirt comprising: an elongated stabilising section comprising: a frangible connecting line extending circumferentially around at least a portion of the skirt; and a sealing section comprising an attachment arrangement and a seal member, the seal member comprising: an inner sealing surface lying radially inwardly of the skirt and extending from a base of the top deck; and an annular seal extending inwardly into the cavity from a first end contiguous with the skirt to a free edge and having an upper surface and a lower surface; wherein, in the fitted position of the closure, the annular
  • the closure may be formed from a synthetic plastics material.
  • the synthetic plastics material may be polyethylene or polypropylene, for example high density polyethylene (HDPE).
  • the HDPE may be a modified HDPE comprising a passive barrier additive.
  • the passive barrier additive may cause a decrease in permeability of a substance through the HDPE.
  • the passive barrier additive may cause a decrease in permeability of the substance through the HDPE by influencing the molecular structure of the HDPE.
  • the passive barrier additive may influence the molecular structure of the HDPE through controlling orientation of polymer crystals such that permeation of the substance through the HDPE is inhibited.
  • the substance may be oxygen and/or vapour.
  • the closure may be formed in one piece, the sealing section contiguous with the top deck and the elongated stabilising section.
  • the closure may be formed in a mold.
  • the outside sealing surface parting line can be a product of the process of molding the closure.
  • the elongated stabilising section can have a protrusion on an inside of the stabilising section, this protrusion being configured to engage the collar of the neck on moving the closure from a fitted position of the closure on the container to an open position relative the container.
  • the protrusion can comprise an annular ridge extending circumferentially around the inside surface of the elongated stabilising section. The ridge can be continuous along its entire length or be segmented.
  • the elongated stabilising section can have a band on an inside of the stabilising section, this band being configured to engage the collar of the neck on moving the closure from a fitted position of the closure on the container to an open position relative the container.
  • the band can comprise a single circumferential flange.
  • the band can comprise a plurality of flanges. Each flange can have an identical circumferential length.
  • Each flange can comprise a main member joined to the inner surface of the elongated stabilising section by one or more hinges. The main member can have a first surface that faces inwardly on molding of the flanges and an opposite second surface that faces outwardly on molding of the flanges.
  • the second surface of one, some or all of the main members can have an engaging nub that assists engagement of the flange with the collar of the container on attempted removal of the closure from the container.
  • the flange or flanges can, on molding of the closure, be molded so as to extend away from the top deck of the closure. This orientation of the flange or flanges assists ejection of the closure from the mould on manufacture.
  • the flange or flanges are pushed relatively upwards by the interference with the collar on the container.
  • the flange or flanges are extending relatively upwards towards the seal of the closure and eventually end up positioned below the collar of the container. No additional equipment is needed to fold up the flanges.
  • the flange or flanges engage the collar so leading the frangible connecting line to rupture so indicating tamper and ultimately separation of the sealing section of the closure from the elongated stabilising section.
  • the elongate stabilising section may have a first thickness substantially along a length thereof.
  • the sealing section may be a reinforced sealing section.
  • the reinforced sealing section may have a second thickness that is greater than the first thickness of the elongate stabilising section.
  • the top deck may have a thickness substantially corresponding to the second thickness.
  • the first thickness may be approximately 0.8mm.
  • the second thickness may be approximately 1.6 mm.
  • the inner sealing surface may be substantially cylindrical or cylindrical.
  • the annular seal may be separated from the top deck by the inner sealing surface.
  • the upper surface of the annular seal may be tangential to the substantially cylindrical inner sealing surface.
  • the skirt may have an outer surface that provides a gripping surface.
  • the gripping surface may be provided at the outer surface of the skirt about the sealing section.
  • the gripping surface may comprise a plurality of ridges or be knurled.
  • the inner sealing surface may extend between an edge disposed at the base of the top deck and the first end of the annular seal.
  • the annular seal may have a length between the first end and the free edge such that the upper surface contacts at least a portion of the inner sealing surface and the edge disposed at the base of the top deck in the fitted position of the closure.
  • the lower surface of the annular seal may be in sealing engagement with the outside sealing surface, at least a portion of the outer surface below the outside sealing surface parting line and at least a portion of the end finish of the neck in the fitted position of the closure.
  • the annular seal may be pressed between the edge disposed at the base of the top deck and the end finish of the neck proximate the free edge of the annular seal in the fitted position of the closure.
  • the annular seal may be substantially frusto-conical for at least a portion of its length, a majority of its length, most of its length, or all of its length.
  • the annular seal may be formed at an angle of less than 90° relative to a notional plane extending at a right angle to the skirt. The angle is preferably between about 5° and 20° relative to the notional plane and most preferably about 10° relative to the notional plane.
  • the attachment arrangement may be a screw thread on an inside surface of the skirt engageable with a corresponding thread on the neck of the container.
  • the screw thread of the closure can be continuous or segmented.
  • the frangible connecting line can extend around the full circumference of the skirt.
  • the frangible connecting line may be any line at which the skirt is preferentially broken under strain.
  • the frangible connecting line may comprise any frangible element.
  • the frangible element may comprise one or more frangible bridges.
  • the frangible bridges may be uniformly or non-uniformly spaced around the circumference of the skirt.
  • the top deck may comprise a torque engagement mechanism.
  • the torque engagement mechanism may be arranged in a depression of the top deck in an opposite axial direction to the skirt.
  • the depression may have an annular wall, the torque engagement mechanism comprising buttresses arranged against an inner face of the annular wall and extending towards a centre axis of the annular wall.
  • a container and closure combination with the container having an opening sealed by a closure as defined herein.
  • the container may be a polyethylene terephthalate (PET) container or a glass container.
  • PET polyethylene terephthalate
  • the container may be a re-usable and/or a re-fillable container.
  • a mold for forming a closure as defined herein comprising a cavity shaped to form the closure.
  • the mold may be used to form the closure using injection, rotary or compression molding.
  • a method of forming a closure as defined herein comprising molding the closure.
  • a method of fitting a closure as described herein to a container comprising a neck defining an opening, the method comprising turning the closure onto the neck of the container until the closure seals the opening.
  • Figure 1 is a (a) top view, (b) side view, (c) opposite side view and (d) top view of one embodiment of the closure;
  • Figure 2 is a cross-sectional side view of the closure of Figure 1 alongside a container and before fitting the closure to the container;
  • Figure 3 is a (a) side view and (b) cross-sectional side view of the closure of Figure 1 in a fitted position of the closure on the container;
  • Figure 4 is a cross-sectional side view of the closure of Figure 3 partially moved between the fitted position and an open position relative the container;
  • Figure 5 is a cross-section side view of the closure of Figure 4 further partially moved between the fitted position and the open position;
  • Figure 6 is a (a) side view and (b) cross-sectional side view of the closure of Figure 5 in the open position of the closure;
  • Figure 7 is a (a) side view and (b) cross-sectional side view of the closure of Figure 6 in a reattached position on the container; and [0034] Figure 8 is a is a cross-sectional side view of another embodiment of the closure depicted prior to fitting of the closure to a container.
  • FIG. 10 One example embodiment of a closure for use in sealing a container is depicted generally as 10 in the Figures 1 to 7.
  • FIG. 8 An alternative embodiment of a closure is depicted in Figure 8 generally as 10a with the same numbers used to identify identical features to those of closure 10.
  • the closure 10 depicted in Figures 1 to 7 is suitable for capping or closing a container 100 adapted to receive a beverage and having a neck 102.
  • the neck 102 has a collar 104, an end finish 106, an outside sealing surface 110, an outside sealing surface parting line 112, and an outer surface 114 distal the parting line 112.
  • the parting line 112 can be formed during molding of the container 100 where a substantially straight outer surface 114 meets a curvature of the outside sealing surface 110 along an axial direction z.
  • the parting line 112 can be about 1mm to about 1.5mm below the end finish 106 along the side of the neck 102.
  • the end finish 106 of the neck 102 is shown to define an opening 108, with the outside sealing surface 110 extending from the end finish 106 to the outside sealing surface parting line 112.
  • the outer surface 114 in turn is located distal to the outside sealing surface parting line 110.
  • the container 100 can be a glass or plastic container adapted to receive a beverage as known in the art.
  • the closure 10 may be molded or otherwise formed, for example from a synthetic plastics material, such as a polyethylene or polypropylene.
  • the closure 10 can be molded or otherwise formed from high density polyethylene (HDPE).
  • the closure 10 comprises a top deck 12 and a skirt 14.
  • the skirt 14 extends from a periphery of the top deck 12 in an axial direction z to define a cavity 16 in which at least a portion of the neck 102 and the opening 108 of the container 100 can be received when the closure 10 is fitted on the container 100 for the first time in a fitted position of the closure 10, as depicted in Figure 3.
  • the skirt 14 is further shown to comprise an elongated stabilising section 14.1 and a sealing section 14.2.
  • the elongated stabilising section 14.1 comprises a protrusion 18 on an inside of the stabilising section 14.1, for example an annular bead as shown in Figures 1 through 7.
  • the protrusion 18 is configured to engage the collar 104 of the neck 102 when the closure 10 is moved from the fitted position to an open position relative the container 100, as shown sequentially in Figures 3 through 6.
  • Figure 8 depicts a closure generally as 10a having an alternative to the protrusion depicted in Figures 1 to 7.
  • the closure 10a has a band 200 on an inside of the stabilising section 14.1, this band 200 being configured to engage the collar 104 of the neck 102 on moving the closure 10a from a fitted position of the closure on the container 100 to an open position relative the container 100.
  • the band can comprise a plurality of flanges 201.
  • Each flange 201 can have an identical circumferential length and comprise a main member 202 joined to the inside of the elongated stabilising section 14.1 by a number of hinges 203.
  • the main member 202 has a first surface 204 that faces inwardly after molding of the closure 10a and prior to its application to a container 100 and an opposite second surface (not visible in Figure 8) that faces outwardly on molding.
  • the second surface of one, some or all of the main members can have an engaging nub 206 that assists engagement of the flange 201 with the collar 104 of the container 100 on attempted removal of the closure 10a from the container 100.
  • the flanges 201 can, on molding of the closure, be molded so as to extend away from the top deck of the closure 10a (as depicted in Figure 8). This orientation of the flanges 201 assists ejection of the closure 10a from the mould on manufacture.
  • the flanges 201 are pushed relatively upwards by the interference with the collar 104 on the container 100.
  • the flanges are extending relatively upwards towards the seal 24 of the closure 10a and eventually end up positioned below the collar 104 of the container 100. No additional equipment is needed to fold up the flanges.
  • the flanges 201 engage the collar 104 so leading the frangible connecting line 20 to rupture so indicating tamper and ultimately separation of the sealing section 14.2 of the closure 10a from the elongated stabilising section 14.1.
  • the stabilising section 14.1 further comprises the frangible connecting line 20.
  • the frangible connecting line 20 extends the full circumference of the section 14.1.
  • the frangible connecting line 20 comprises a slit with frangible bridges uniformly or non-uniformly spaced around the circumference of the skirt 14, located at a position of the skirt 14 between the top deck 12 and the protrusion 18 of closure 10 or the flanges 201 of closure 10a.
  • the size and number of the frangible bridges may vary amongst different variations of the closures 10 and 10a. For example, a variation of the closures 10, 10a may include fewer frangible bridges that are larger in size. Another variation of the closure 10, 10a may include a greater number of frangible bridges that are smaller in size.
  • the elongated stabilising section 14.1 can be configured to fit closely with an elongated section of the neck 12 to ensure that the skirt 14, and thereby the closure 10 or 10a, can remain centred on the neck 12 as it is moved between the fitted position and the open position.
  • the skirt 14 can have a first thickness of approximately 0.8mm along the stabilising section 14.1.
  • the protrusion 18 can extend approximately 0.3mm from the inside of the skirt 14 and with a thickness of approximately 1 ,4mm at a base thereof at the skirt 14 along an axial direction z.
  • the sealing section 14.2 in turn comprises an attachment arrangement 22, by example a continuous or segmented screw thread on an inside surface of the skirt 14 that is engageable with a corresponding thread 116 on the neck 102 of the container 100.
  • an attachment arrangement 22 is a screw thread
  • the closure 10 or 10a can be turned relative the neck 102 (see A as shown in Figure 1(a)), aided by the stabilising section 14.1, to move the closure 10 or 10a between the fitted position and the open position. It is, however, possible for the container 100 and the closure 10 or 10a to be formed with other complementary attachment arrangements.
  • the sealing section 14.2 further comprises a seal member 24.
  • the seal member 24 is depicted as comprising an inner sealing surface 26 and an annular seal 28.
  • the inner sealing surface 26 lies radially inwardly of the skirt 14 and extends from a base 12.1 of the top deck 12.
  • the annular seal 28 is substantially frusto-conical and extends inwardly into the cavity 16 from a first end 28.3 at the skirt 14 to a free edge 28.4, with the annual seal 28 having an upper surface 28.1 and a lower surface 28.2.
  • the frusto-conical annular seal 28 can be formed at an angle of less than 90° relative to a notional plane extending at a right angle to the skirt 14 of the closure 10.
  • the angle is more preferably between about 5° and 20° relative to the notional plane and most preferably about 10° relative to the notional plane.
  • the closure 10 or 10a does not require a sealing disk as known in the art, and can thereby be formed as one piece, with the sealing section 14.2 contiguous with the top deck 12 and the elongated stabilising section 14.1.
  • the inner surface 26 can be substantially cylindrical, extending between an edge 12.2 disposed at the base 12.1 of the top deck 12 and the first end 28.3 of the annular seal 28.
  • the annular seal 28 can therewith have a length between the first end 28.3 and the free edge 28.4 such that the upper surface 28.1 thereof contacts at least a portion of the inner sealing surface 26 and the edge 12.2 disposed at the base 12.1 of the top deck 12.
  • the lower surface 28.2 of the annular seal 28 can be in sealing engagement with the outside sealing surface 110, at least a portion of the outer surface 114 below the outside sealing surface parting line 112 and at least a portion of the end finish 106 of the neck 102.
  • the annular seal 28 is thereby pressed between the edge 12.2 disposed at the base 12.1 of the top deck 12 and the end finish 106 of the neck 102 proximate its free edge 28.4. This contact and sealing engagement can thereby provide an air tight seal between the closure 10 and the container 100.
  • the upper surface 28.1 of the annular seal 28 is at least in part separated from the base 12.1 of the top deck 12 by the inner sealing surface 26, with the upper surface 28.1 of the annular seal 28 tangential to the inner sealing surface 26.
  • all of the length of the annular seal 28 need not be frusto- conical, and only a portion of its length, a majority of its length or most of its length may be frusto-conical, as may be required to achieve the described contact and sealing engagement as will be apparent from this description.
  • the closure 10 can be moved from the fitted position to the open position, as shown sequentially in Figures 3 through 6, by turning A the closure 10 in a direction relative the container 100 and thereby causing the closure 10 to move along an axial direction z.
  • Figure 4 shows the closure 10 partially moved along the axial direction z between the fitted position and the open position such that the protrusion 18 engages the collar 104 of the neck 102.
  • the collar 104 thereby resists further movement of the skirt 14 along the axial direction z.
  • the frangible connecting line 20 is broken, as shown in Figure 5, as a result of the further attempted movement of the closure 10 along the axial direction z.
  • a part of the skirt 14 opposite the frangible connecting line 20 from the sealing section 14.2 remains on the neck 102 as a result of the broken frangible connecting line 20, and may drop a distance along the elongate section of the neck 102 under gravity.
  • the other part of the skirt 14 is then allowed to move further along the axial direction z, therewith permitting the closure 10 to move to the open position as shown in Figure 6.
  • the broken frangible connecting line 20 thereby serves as evidence of a first disengagement of the above described contact and sealing engagement with respect to the annular seal 28, thereby a first breaking of the air tight seal, after the closure 10 is fitted to the container 100.
  • the annular seal 28 can be of a suitably flexible material, for example polyethylene or polypropylene, such that the engagement with the neck 102 in the fitted position of the closure 10 results in substantially elastic deformation of the annular seal 28 towards achieving the above described contact and sealing engagement. As such, and when the closure 10 is provided in the open position as shown in Figure 6, the annular seal 28 can revert to being frusto-conical. This enables the closure 10 to be reattached to the container 100 in a reattached position as shown in Figure 7.
  • the reattached position can thereby again allow the upper surface 28.1 of the annular seal 28 to contact at least a portion of the inner sealing surface 26 as well as the edge 12.2 disposed at the base 12.1 of the top deck 12.
  • the lower surface 28.2 of the annular seal 28 can therewith again also be brought into sealing engagement with the outside sealing surface 110, at least a portion of the outer surface 114 below the outside sealing surface parting line 112 and at least a portion of the end finish 106 of the neck 102 with the annular seal 28 pressed between the edge 12.2 and the end finish 106 of the neck 102 proximate its free edge 28.4.
  • the air tight seal can be reestablished in the reattached position of the closure 10 even after being broken from the fitted position.
  • the now broken frangible connecting line 20 provides evidence that the air tight seal had been broken for a first time after the closure 10 was initially fitted to the container 100.
  • a fold line (not shown) can also be provided at the first end 28.3 of the annular seal 28. Such a fold line may further act to guide the annular seal 28 to fold back relatively evenly towards the inner sealing surface 26 to further enhance the contact and sealing engagement in both the fitted position and reattached position of the closure 10.
  • the closure 10 is shown to comprise a gripping surface or grip 30 at an outer surface of the skirt 14 to assist in turning A the closure 10 relative the container 100, whether to move the closure 10 from the fitted position to the open position by turning A the closure 10 in one direction or to move the closure 10 from the open position to the reattached position by turning A the closure 10 in the opposite direction.
  • the grip 30 can be a plurality of ridges provided at an outer surface of the skirt 14 about the sealing section 14.2, thereby the grip 30 is provided at the part of the skirt 14 opposite from the part of the skirt 14 having the protrusion 18.
  • the grip can be provided by knurling.
  • the top deck 12 can comprise a torque engagement mechanism 32, for example butresses arranged against an inner face of an annular wall 34.1 of a depression 34 of the top deck 12, with the buttresses extending towards a centre axis of the annular wall 34.1, as shown in Figures 1 through 7 and indicated in Figures 1 and 2.
  • the torque engagement mechanism 32 can thereby be configured to mesh and engage with a torqueing member of a fiting system during the initial fitting of the closure 10 onto the container 100.
  • closure 10 With regard to its mounting to the container 100 and then being removed is equally applicable to closure 10a depicted in Figure 8.
  • closures 10 and 10a are now further described with reference to a non-limiting example in which the container 100 is adapted to receive an alcoholic beverage which is susceptible to deleterious oxidation from molecular oxygen in air, such as wine.
  • the closure 10 or 10a can be formed in one piece from HDPE modified with a passive barrier additive to physically decrease oxygen permeability through the HDPE.
  • a passive barrier additive by non-limiting example Milliken’s UltraGuard, can be used to modify the HDPE by influencing its molecular structure through controlling orientation of its polymer crystals such that permeation of oxygen through the HDPE occurs along a tortuous path, and is thereby inhibited.
  • the sealing section 14.2 can be reinforced.
  • the sealing section 14.2 can have a second thickness that is greater than the first thickness of the elongate stabilising section 14.1.
  • the top deck 12 can be formed to also have a thickness substantially corresponding to the second thickness of the sealing section 14.2, as shown in Figures 1 through 7.
  • this second thickness may preferably be approximately 1.6 mm.
  • the annular seal 28 can also be formed at a thickness that can contribute to a decrease in oxygen permeability through the closure 10 or 10a, preferably a thickness of approximately 0.5mm.
  • the closure 10 or 10a can be provided with a greater thickness about the inner sealing surface 26 and the sealing engagement, therewith extending a path along which oxygen is required to permeate to reach the cavity 16 and thereby also physically decreasing oxygen permeability through the closure 10.
  • the closure 10 or 10a fitted or reattached to a polyethylene terephthalate (PET) container or a glass container can achieve oxygen transmission rates as low as 2.5mg/L/annum.
  • PET polyethylene terephthalate
  • this oxygen transmission rate can be further reduced to as low as 1.3 mg/L/annum.
  • closure 10 or 10a need not be limited to capping or closing containers 100 adapted to receive alcoholic beverages, and the above described passive barrier additive and/or formed thicknesses can render the closure 10 or 10a suitable for capping or closing containers 100 wherein the permeation of other substances, such as water, vapour, carbon dioxide and fragrances, through the closure 10 or lOais required to be inhibited.
  • other substances such as water, vapour, carbon dioxide and fragrances
  • a mold can be used to form the closure 10 or 10a.
  • the mold can comprise a cavity shaped to form the closure 10 or the closure 10a.
  • the mold can be used to form the closure using injection, rotary or compression molding.
  • a method of forming the closure 10 or 10a can include molding the closure in one piece.
  • the method of fitting the closure lOor 10a to the container 100 can comprise placing and turning the closure 10 onto the container 100 until the closure 10 seals the container 100, such that the annular seal 28 is engaged by the neck 102 so that the upper surface 28.1 of the annular seal 28 contacts at least a portion of the inner sealing surface 26 and at least a portion of the lower surface 28.2 of the annular seal 28 is in sealing engagement with the outside sealing surface 110 and at least a portion of the outer surface 114 below the outside sealing surface parting line 112.

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

Abstract

La présente divulgation concerne une fermeture (10 ou 10a) pour un récipient (100), la fermeture comprenant un plateau supérieur (12), une jupe (14) s'étendant à partir du plateau supérieur (12) dans une direction axiale pour définir une cavité (16), la jupe (14) comprenant une section de stabilisation allongée (14.1) et une section d'étanchéité (14.2), la section d'étanchéité (14.2) comprenant un agencement de fixation (22) et un élément d'étanchéité (24), l'élément d'étanchéité (24) comprenant une surface d'étanchéité interne (26) s'étendant radialement vers l'intérieur de la jupe (14) et s'étendant à partir d'une base (12.1) du plateau supérieur (12) et un joint annulaire (28) s'étendant vers l'intérieur dans la cavité (16) à partir d'une première extrémité (28.3) au niveau de la jupe (14) jusqu'à un bord libre (28.4) et ayant une surface supérieure (28.1) et une surface inférieure (28.2).
PCT/GB2024/051636 2023-06-28 2024-06-26 Fermeture pour un récipient pourvu d'un col Pending WO2025003662A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU2023902045A AU2023902045A0 (en) 2023-06-28 Closure for a container having a neck
AU2023902045 2023-06-28

Publications (1)

Publication Number Publication Date
WO2025003662A1 true WO2025003662A1 (fr) 2025-01-02

Family

ID=91898470

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2024/051636 Pending WO2025003662A1 (fr) 2023-06-28 2024-06-26 Fermeture pour un récipient pourvu d'un col

Country Status (1)

Country Link
WO (1) WO2025003662A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2562039A1 (fr) * 1984-04-02 1985-10-04 Vittel Eaux Min Dispositif de bouchage a accrochage perfectionne
DE202017005974U1 (de) * 2017-11-17 2017-11-27 Obrist Closures Switzerland Gmbh Verschluss
EP3584189A1 (fr) * 2018-06-12 2019-12-25 Closure Systems International Inc. Fermeture captive de pont
US20220073237A1 (en) * 2019-02-27 2022-03-10 Nippon Closures Co., Ltd. Plastic cap

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2562039A1 (fr) * 1984-04-02 1985-10-04 Vittel Eaux Min Dispositif de bouchage a accrochage perfectionne
DE202017005974U1 (de) * 2017-11-17 2017-11-27 Obrist Closures Switzerland Gmbh Verschluss
EP3584189A1 (fr) * 2018-06-12 2019-12-25 Closure Systems International Inc. Fermeture captive de pont
US20220073237A1 (en) * 2019-02-27 2022-03-10 Nippon Closures Co., Ltd. Plastic cap

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