WO2016184946A1 - Tamper evident closure - Google Patents

Tamper evident closure Download PDF

Info

Publication number
WO2016184946A1
WO2016184946A1 PCT/EP2016/061214 EP2016061214W WO2016184946A1 WO 2016184946 A1 WO2016184946 A1 WO 2016184946A1 EP 2016061214 W EP2016061214 W EP 2016061214W WO 2016184946 A1 WO2016184946 A1 WO 2016184946A1
Authority
WO
WIPO (PCT)
Prior art keywords
metal sleeve
polymeric ring
metal cap
metal
tamper evident
Prior art date
Application number
PCT/EP2016/061214
Other languages
French (fr)
Inventor
Marco Giovannini
Fabio VELLA
Original Assignee
Guala Closures S.P.A.
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
Application filed by Guala Closures S.P.A. filed Critical Guala Closures S.P.A.
Publication of WO2016184946A1 publication Critical patent/WO2016184946A1/en

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
    • B65D41/62—Secondary protective cap-like outer covers for closure members
    • 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
    • B65D41/348—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt the tamper element being rolled or pressed to conform to the shape of the container, e.g. metallic closures
    • 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 invention relates to a tamper evident closure for a container with a threaded neck.
  • the present invention relates to a tamper evident closure with a metal cap, a metal sleeve and a polymeric ring arranged inside the metal cap and the metal sleeve to provide tamper evident feature.
  • a tamper evident closure of this kind is disclosed in EP 1964787.
  • This closure comprises a metal cap for opening and closing the container, a metal sleeve arranged coaxial with the metal cap and connected thereto by breakable bridges and a polymeric ring arranged coaxially inside the metal cap and the metal sleeve.
  • the ring has a first portion with a first diameter Dl, a second portion with a second diameter D2 lower than Dl and the third portion with a third diameter D3.
  • An end portion of the metal cap is positioned around the first portion before first opening. Upon first opening, the end portion passes over the first portion which remains visible when the metal cap is applied for reclosing the container.
  • a closure of this type is applied preferably to containers which are provided with so-called "standard threaded necks", i.e. a neck which is produced in accordance with standard UNI9574 or in accordance with standards equivalent to this, such as, for example, the French standard GME 30.06.
  • standard threaded necks i.e. a neck which is produced in accordance with standard UNI9574 or in accordance with standards equivalent to this, such as, for example, the French standard GME 30.06.
  • the object of the present invention is to avoid the risk of breaking of the breakable bridges on a tamper evident closure of the type above mentioned.
  • FIG. 1 shows a view in cross-section of a preferred embodiment of the closure according to the present invention, before the rolling operation
  • FIG. 2 shows a view in cross-section of the closure of FIG. 1 after the rolling operation
  • FIG. 3 shows a perspective view of the polymeric ring of the closure of FIG. 1,
  • FIG. 4 shows a side view of the polymeric ring of FIG. 3.
  • a tamper evident closure 1 according to a first embodiment of the invention.
  • the closure 1 is intended to be applied on a container 100, e.g. a bottle, such as a glass bottle, e.g. for spirits.
  • a container 100 e.g. a bottle, such as a glass bottle, e.g. for spirits.
  • the container 100 has a threaded neck 101 extending along a longitudinal direction X-X and provided with a threaded portion 102, a mouth 103 defining a pouring orifice 103a and a collar 104 arranged longitudinally below the threaded portion 102.
  • the closure 1 extends along the longitudinal direction X-X and comprises a metal cap 10, a metal sleeve 20 and a polymeric ring 30.
  • the metal cap 10 is configured for engaging removably the threaded neck 101 for opening and closing the mouth 103 and respectively allowing and preventing the liquid stored in the container 100 to be poured from the pouring orifice 103 a.
  • the metal cap 10 comprises a threaded portion 11 configured to engage removably the threaded portion 102 of the threaded neck 101.
  • the metal cap 10 comprises a top wall 12 and a tubular sleeve 13 extending longitudinally between the top wall 12 and a lower end portion 14.
  • the threaded portion 11 is provided directly on the tubular sleeve 13.
  • a threaded plastic insert may be arranged inside the metal cap 10 and firmly attached to the metal cap 10 longitudinally and rotationally. With this embodiment, the threaded portion is formed on the threaded plastic insert.
  • the metal sleeve 20 is arranged longitudinally below the metal cap 10 and is configured to be arranged around the threaded neck 101.
  • the metal sleeve 20 comprises a retention portion 25 for restraining the metal sleeve 20 and therefore the closure 1 on the container 100, when the closure 1 is firmly mounted on the container 100.
  • the metal sleeve 20 extends longitudinally between an upper end portion 21 and a lower end portion 22.
  • the upper end portion 21 of the metal sleeve 20 is connected to the lower end 14 of the metal cap 10 through a breakable portion 26 that breaks upon first opening of the closure 1.
  • the present invention operates as well with the metal cap 10 separated from the metal sleeve 20.
  • the breakable portion 26 comprises a plurality of breakable bridges arranged spaced apart circumferentially and connecting the metal cap 10 with the metal sleeve 20.
  • the polymeric ring 30 is arranged inside the metal cap 10 and the metal sleeve
  • the metal sleeve 20 is arranged coaxial with the metal cap 10 and the polymeric ring 30 is arranged coaxially inside the metal cap 10 and the metal sleeve 20.
  • the polymeric ring 30 comprises a first portion 31 having a first diameter Dl, a second portion 32 having a second diameter D2 lower than the first diameter Dl and a third portion 33 having a third diameter D3 greater than the second diameter D2.
  • D2 is between 20 and 40 mm
  • Dl is greater than D2 by a value of between approximately 0.2 and approximately 3 mm
  • D3 is approximately equal to D 1.
  • the metal cap 10 and the metal sleeve 20 are made of aluminium, with a thickness which is advantageously between 0.2 mm and 0.3 mm and is advantageously 0.22 mm, whereas the polymeric ring 30 is made of a material selected from the group comprising POM, PC, polyamide and PP.
  • the second portion 32 is arranged longitudinally below the first portion 31 and the third portion 33 is arranged longitudinally below the second portion 32.
  • the outer surface 31 a of the first portion 31 diverges outwardly from the second portion 32, preferably in a frusto-conical form.
  • the outer surface 3 la of the first portion is interrupted at more than one point, for example by means of radial notches (not shown) which make it possible to modulate its resilience.
  • the lower end portion 14 of the metal cap 10 is arranged around the first portion 31 of the polymeric ring 30 and the upper end portion 21 of the metal sleeve 20 is arranged around the second portion 32 and the third portion 33 of the polymeric ring 30.
  • the upper end portion 21 of the metal sleeve 20 forms an annular channel 23.
  • the annular channel 23 houses the third portion 33 of the polymeric ring 30 and is configured to restrain longitudinally the polymeric ring 30.
  • the third portion 33 has an upper abutment surface 33a and the annular channel 23 has an upper stop surface 23 a facing the upper abutment surface 33a to restrain longitudinally the third portion 30 within the annular channel 23 and therefore the polymeric ring 30 relative to the metal sleeve 20.
  • the third portion 33 has a lower abutment surface 33b and the annular channel 23 has a lower stop surface 23b facing the lower abutment surface 33b to restrain longitudinally the third portion 30 within the annular channel 23 and therefore the polymeric ring 30 relative to the metal sleeve 20, in a direction inverse to the restraining direction of the upper abutment surface 33a and the upper stop surface 23a.
  • the lower end portion 14 of the metal cap 10 Upon first opening, the lower end portion 14 of the metal cap 10, which is arranged around the first portion 31 , passes over the first portion 31 such that, upon reclosure, the first portion 31 of the polymeric ring 30 is visible thereby giving evidence that the container 100 has been opened and re-closed.
  • the lower end portion 14 and the upper end portion 21 are spaced apart by a part of the polymeric ring 30 arranged therebetween in an obstructive manner.
  • the closure 1 is therefore configured such that, after first opening, the lower end portion 14 of the metal cap 10 which has passed over the first portion 31 of polymeric ring 30 can no longer pass over it in the inverse direction, in order to be disposed once more outside the first portion 31, thus preventing restoration of the configuration of the closure 1 before first opening.
  • the lower end portion 14 positions behind the first portion 31 of the polymeric ring 30.
  • the lower end portion 14 expands so as to pass over the first portion 31 and subsequently undergoes resilient contraction, preferably returning to its original configuration.
  • the first portion 31 contracts and subsequently undergoes resilient expansion, preferably returning to its original configuration, to let the lower end portion 14 to pass over the first portion 31.
  • a combination of the first and second embodiments occurs so that the lower end portion 14 expands and the first portion 31 contracts.
  • the polymeric ring 30 comprises a fourth portion 34 arranged longitudinally below the third portion 33.
  • the retention portion 25 of the metal sleeve 20 is arranged around the fourth portion 34.
  • the retention portion 25 is configured to act on the fourth portion
  • the abutment surface 105 is identified by a portion of the threaded neck 100 arranged longitudinally below the collar 104.
  • the abutment surface 105 is a lower surface of the collar 104.
  • the third portion 33 of the polymeric ring 30 remains safely restrained longitudinally in the annular channel 23 so that the polymeric ring 30 is restrained in its position relative to the metal cap 10 and the metal sleeve 20.
  • the closure 1 is then firmly attached to the threaded neck 101 by rolling the retention portion 25 on the threaded neck 101 so that the retention portion 25 urges the fourth portion 34 against the abutment surface 105 of the threaded neck 101.
  • the fourth portion 34 comprises a plurality of wings 35 arranged spaced apart circumferentially.
  • Each wing 35 projects longitudinally from the third portion 33 and extends longitudinally between a base portion 35a and a free end portion 35b.
  • the base portion 35a is connected to a respective portion of the third portion 33 through a connecting portion 36.
  • the connecting portion 36 is configured such that each wing 35 is flexible relative to the third portion 33. With this arrangement, when the retention portion 25 urges on the fourth portion 34, the wings 35 bend inside relative to the third portion 33 without any stress on the third portion 33.
  • the connecting portion 36 has a thickness lower than the thickness of the respective wing 35 and the third portion 33.

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

Abstract

The present invention relates to a tamper evident closure (1) with a metal cap (10), a metal sleeve (20) and a polymeric ring (30). The metal sleeve (20) comprises a retention portion (25), the polymeric ring (30) comprises a first portion (31), a second portion (32) and a third portion (33). The polymeric ring (30) comprises a fourth portion (34) arranged longitudinally below the third portion (33) and the retention portion (25) is arranged around the fourth portion (34).

Description

Title: "TAMPER EVIDENT CLOSURE"
TECHNICAL FIELD
The present invention relates to a tamper evident closure for a container with a threaded neck.
In particular, the present invention relates to a tamper evident closure with a metal cap, a metal sleeve and a polymeric ring arranged inside the metal cap and the metal sleeve to provide tamper evident feature.
BACKGROUND OF THE INVENTION
A tamper evident closure of this kind is disclosed in EP 1964787. This closure comprises a metal cap for opening and closing the container, a metal sleeve arranged coaxial with the metal cap and connected thereto by breakable bridges and a polymeric ring arranged coaxially inside the metal cap and the metal sleeve.
The ring has a first portion with a first diameter Dl, a second portion with a second diameter D2 lower than Dl and the third portion with a third diameter D3. An end portion of the metal cap is positioned around the first portion before first opening. Upon first opening, the end portion passes over the first portion which remains visible when the metal cap is applied for reclosing the container.
A closure of this type is applied preferably to containers which are provided with so-called "standard threaded necks", i.e. a neck which is produced in accordance with standard UNI9574 or in accordance with standards equivalent to this, such as, for example, the French standard GME 30.06.
Some inconveniences have been noticed when rolling the closure on a container having a threaded neck with a collar shorter than according to the above mentioned standards. In fact, due to the short longitudinal extension of the collar, when the metal sleeve is rolled below the collar to restrain the metal sleeve on the container, this rolling operation takes place in a longitudinal position close to the breakable bridges with the consequence that the bridges may break during rolling.
In view of the cited state of the art and the noticed inconvenience, the object of the present invention is to avoid the risk of breaking of the breakable bridges on a tamper evident closure of the type above mentioned.
SUMMARY OF THE INVENTION
According to the present invention, this purpose is fulfilled by a tamper evident closure according to claim 1.
BRIEF DESCRIPTION OF THE DRAWINGS
The characteristics and advantages of the present invention will appear from the following detailed description of one practical embodiment, which is given as a non limiting example with reference to the annexed drawings, in which:
- FIG. 1 shows a view in cross-section of a preferred embodiment of the closure according to the present invention, before the rolling operation,
- FIG. 2 shows a view in cross-section of the closure of FIG. 1 after the rolling operation,
- FIG. 3 shows a perspective view of the polymeric ring of the closure of FIG. 1,
- FIG. 4 shows a side view of the polymeric ring of FIG. 3.
DETAILED DESCRIPTION
Referring to the figures, there is shown a tamper evident closure 1 according to a first embodiment of the invention.
The closure 1 is intended to be applied on a container 100, e.g. a bottle, such as a glass bottle, e.g. for spirits.
The container 100 has a threaded neck 101 extending along a longitudinal direction X-X and provided with a threaded portion 102, a mouth 103 defining a pouring orifice 103a and a collar 104 arranged longitudinally below the threaded portion 102.
The closure 1 extends along the longitudinal direction X-X and comprises a metal cap 10, a metal sleeve 20 and a polymeric ring 30.
The metal cap 10 is configured for engaging removably the threaded neck 101 for opening and closing the mouth 103 and respectively allowing and preventing the liquid stored in the container 100 to be poured from the pouring orifice 103 a.
In particular, the metal cap 10 comprises a threaded portion 11 configured to engage removably the threaded portion 102 of the threaded neck 101.
The metal cap 10 comprises a top wall 12 and a tubular sleeve 13 extending longitudinally between the top wall 12 and a lower end portion 14.
According to the embodiment shown in the figures, the threaded portion 11 is provided directly on the tubular sleeve 13.
Alternatively, a threaded plastic insert may be arranged inside the metal cap 10 and firmly attached to the metal cap 10 longitudinally and rotationally. With this embodiment, the threaded portion is formed on the threaded plastic insert.
The metal sleeve 20 is arranged longitudinally below the metal cap 10 and is configured to be arranged around the threaded neck 101.
The metal sleeve 20 comprises a retention portion 25 for restraining the metal sleeve 20 and therefore the closure 1 on the container 100, when the closure 1 is firmly mounted on the container 100.
The metal sleeve 20 extends longitudinally between an upper end portion 21 and a lower end portion 22.
Preferably, the upper end portion 21 of the metal sleeve 20 is connected to the lower end 14 of the metal cap 10 through a breakable portion 26 that breaks upon first opening of the closure 1. However, it will be appreciated that the present invention operates as well with the metal cap 10 separated from the metal sleeve 20.
According to one embodiment, the breakable portion 26 comprises a plurality of breakable bridges arranged spaced apart circumferentially and connecting the metal cap 10 with the metal sleeve 20.
The polymeric ring 30 is arranged inside the metal cap 10 and the metal sleeve
20.
Preferably, the metal sleeve 20 is arranged coaxial with the metal cap 10 and the polymeric ring 30 is arranged coaxially inside the metal cap 10 and the metal sleeve 20.
The polymeric ring 30 comprises a first portion 31 having a first diameter Dl, a second portion 32 having a second diameter D2 lower than the first diameter Dl and a third portion 33 having a third diameter D3 greater than the second diameter D2.
According to one embodiment, D2 is between 20 and 40 mm, Dl is greater than D2 by a value of between approximately 0.2 and approximately 3 mm, D3 is approximately equal to D 1.
Preferably, the metal cap 10 and the metal sleeve 20 are made of aluminium, with a thickness which is advantageously between 0.2 mm and 0.3 mm and is advantageously 0.22 mm, whereas the polymeric ring 30 is made of a material selected from the group comprising POM, PC, polyamide and PP.
The second portion 32 is arranged longitudinally below the first portion 31 and the third portion 33 is arranged longitudinally below the second portion 32.
Preferably, the outer surface 31 a of the first portion 31 diverges outwardly from the second portion 32, preferably in a frusto-conical form. According to one embodiment, the outer surface 3 la of the first portion is interrupted at more than one point, for example by means of radial notches (not shown) which make it possible to modulate its resilience.
The lower end portion 14 of the metal cap 10 is arranged around the first portion 31 of the polymeric ring 30 and the upper end portion 21 of the metal sleeve 20 is arranged around the second portion 32 and the third portion 33 of the polymeric ring 30.
The upper end portion 21 of the metal sleeve 20 forms an annular channel 23. The annular channel 23 houses the third portion 33 of the polymeric ring 30 and is configured to restrain longitudinally the polymeric ring 30.
Preferably, the third portion 33 has an upper abutment surface 33a and the annular channel 23 has an upper stop surface 23 a facing the upper abutment surface 33a to restrain longitudinally the third portion 30 within the annular channel 23 and therefore the polymeric ring 30 relative to the metal sleeve 20.
The third portion 33 has a lower abutment surface 33b and the annular channel 23 has a lower stop surface 23b facing the lower abutment surface 33b to restrain longitudinally the third portion 30 within the annular channel 23 and therefore the polymeric ring 30 relative to the metal sleeve 20, in a direction inverse to the restraining direction of the upper abutment surface 33a and the upper stop surface 23a.
Upon first opening, the lower end portion 14 of the metal cap 10, which is arranged around the first portion 31 , passes over the first portion 31 such that, upon reclosure, the first portion 31 of the polymeric ring 30 is visible thereby giving evidence that the container 100 has been opened and re-closed. In particular, with the embodiment shown in the figures, after re-closure, the lower end portion 14 and the upper end portion 21 are spaced apart by a part of the polymeric ring 30 arranged therebetween in an obstructive manner. The closure 1 is therefore configured such that, after first opening, the lower end portion 14 of the metal cap 10 which has passed over the first portion 31 of polymeric ring 30 can no longer pass over it in the inverse direction, in order to be disposed once more outside the first portion 31, thus preventing restoration of the configuration of the closure 1 before first opening.
In the example shown in the figures, after re-closure, the lower end portion 14 positions behind the first portion 31 of the polymeric ring 30.
According to a first embodiment, the lower end portion 14 expands so as to pass over the first portion 31 and subsequently undergoes resilient contraction, preferably returning to its original configuration. According to a second embodiment, the first portion 31 contracts and subsequently undergoes resilient expansion, preferably returning to its original configuration, to let the lower end portion 14 to pass over the first portion 31. According to a third embodiment, a combination of the first and second embodiments occurs so that the lower end portion 14 expands and the first portion 31 contracts.
The polymeric ring 30 comprises a fourth portion 34 arranged longitudinally below the third portion 33. The retention portion 25 of the metal sleeve 20 is arranged around the fourth portion 34.
Preferably, the retention portion 25 is configured to act on the fourth portion
34 to put this fourth portion 34 in engagement with an abutment surface 105 of the threaded neck 101. More preferably, the abutment surface 105 is identified by a portion of the threaded neck 100 arranged longitudinally below the collar 104. The abutment surface 105 is a lower surface of the collar 104.
When the closure 1 is mounted on the threaded neck 101 of the container 100, the third portion 33 of the polymeric ring 30 remains safely restrained longitudinally in the annular channel 23 so that the polymeric ring 30 is restrained in its position relative to the metal cap 10 and the metal sleeve 20.
The closure 1 is then firmly attached to the threaded neck 101 by rolling the retention portion 25 on the threaded neck 101 so that the retention portion 25 urges the fourth portion 34 against the abutment surface 105 of the threaded neck 101.
According to the embodiment shown in the figures, the fourth portion 34 comprises a plurality of wings 35 arranged spaced apart circumferentially.
Each wing 35 projects longitudinally from the third portion 33 and extends longitudinally between a base portion 35a and a free end portion 35b.
The base portion 35a is connected to a respective portion of the third portion 33 through a connecting portion 36.
The connecting portion 36 is configured such that each wing 35 is flexible relative to the third portion 33. With this arrangement, when the retention portion 25 urges on the fourth portion 34, the wings 35 bend inside relative to the third portion 33 without any stress on the third portion 33.
Preferably, the connecting portion 36 has a thickness lower than the thickness of the respective wing 35 and the third portion 33.

Claims

1. A tamper evident closure (1) for a container (100) having a threaded neck (101) and a mouth (103), said closure (1) extending along a longitudinal direction (X-X) and comprising:
- a metal cap (10) configured to engage removably the threaded neck ( 101 ) for opening and closing the mouth (103),
- a metal sleeve (20) arranged longitudinally below said metal cap (10) and configured to be arranged around the threaded neck (101),
- a polymeric ring (30) arranged inside said metal cap (10) and said metal sleeve (20), wherein
- said metal sleeve (20) comprises a retention portion (25) for restraining longitudinally said metal sleeve (20) on said container (100), when the closure (1) is firmly mounted on a container (100),
- said polymeric ring (30) comprises a first portion (31) having a first diameter Dl, a second portion (32) having a second diameter D2 lower than said first diameter Dl and a third portion (33) having a third diameter D3 greater than said second diameter D2,
- said second portion (32) is arranged longitudinally below said first portion (31) and said third portion (33) is arranged longitudinally below said second portion (32), - said metal cap (10) has a lower end portion (14) and said metal sleeve (20) has an upper end portion (21),
- said lower end portion (14) of the metal cap (10) is arranged around said first portion (31) of the polymeric ring (30) and said upper end portion (21) of the metal sleeve (20) is arranged around said second portion (32) and said third portion (33) of the polymeric ring (30), - said upper end portion (21) of the metal sleeve (20) forms an annular channel (23) that houses said third portion (33) of the polymeric ring (30) and is configured to restrain longitudinally said polymeric ring (30),
- upon first opening, said lower end portion (14) of the metal cap (10) passes over the first portion (31) of the polymeric ring (30) such that, after reclosure, the first portion
(31) is visible,
characterized in that
- said polymeric ring (30) comprises a fourth portion (34) arranged longitudinally below said third portion (33),
- said retention portion (25) is arranged around said fourth portion (34).
2. The tamper evident closure (1) according to claim 1, wherein:
- said retention portion (25) being configured to act on said fourth portion (34) to put said fourth portion (34) in engagement with an abutment surface of said threaded neck.
3. The tamper evident closure (1) according to claim 1 or 2, wherein:
- said fourth portion (34) comprises a plurality of wings (35) arranged spaced apart circumferentially,
- each wing (35) projects longitudinally from the third portion (33) and extends longitudinally between a base portion (35 a) and a free end portion (35b),
- the base portion (35a) is connected to a respective portion of the third portion (33) through a connecting portion (36),
- said connecting portion (36) is configured such that each wing (35) is flexible relative to the third portion (33).
4. The tamper evident closure (1) according to claim 3, wherein said connecting portion (36) has a thickness lower than the thickness of the respective wing (35) and the third portion (33).
5. The tamper evident closure (1) according to any of claims 1 to 4, wherein said metal sleeve (20) is arranged coaxial with the metal cap (10) and the polymeric ring (30) is arranged coaxially inside the metal cap (10) and the metal sleeve (20).
6. The tamper evident closure (1) according to any of claims 1 to 5, wherein said metal cap (10) is connected to said metal sleeve (20) through a breakable portion (26) that breaks upon first opening.
PCT/EP2016/061214 2015-05-20 2016-05-19 Tamper evident closure WO2016184946A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA2015/03558 2015-05-20
ZA201503558 2015-05-20

Publications (1)

Publication Number Publication Date
WO2016184946A1 true WO2016184946A1 (en) 2016-11-24

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1964787A1 (en) 2007-02-27 2008-09-03 Guala Closures S.p.A. Tamper evident closure for containers provided with a threaded neck
WO2012112127A1 (en) * 2011-02-15 2012-08-23 Sathitakorn Udom Closure with opening indicated band
WO2014128222A1 (en) * 2013-02-21 2014-08-28 Bericap Kapak Sanayi Anonim Sirketi Tamper evident closure system for bottles

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1964787A1 (en) 2007-02-27 2008-09-03 Guala Closures S.p.A. Tamper evident closure for containers provided with a threaded neck
WO2012112127A1 (en) * 2011-02-15 2012-08-23 Sathitakorn Udom Closure with opening indicated band
WO2014128222A1 (en) * 2013-02-21 2014-08-28 Bericap Kapak Sanayi Anonim Sirketi Tamper evident closure system for bottles

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