CA2012644C - Improvements in and relating to closure for containers - Google Patents
Improvements in and relating to closure for containers Download PDFInfo
- Publication number
- CA2012644C CA2012644C CA002012644A CA2012644A CA2012644C CA 2012644 C CA2012644 C CA 2012644C CA 002012644 A CA002012644 A CA 002012644A CA 2012644 A CA2012644 A CA 2012644A CA 2012644 C CA2012644 C CA 2012644C
- Authority
- CA
- Canada
- Prior art keywords
- container
- closure
- cap
- edge
- neck ring
- 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.)
- Expired - Lifetime
Links
- 239000000463 material Substances 0.000 claims abstract description 9
- 229920003023 plastic Polymers 0.000 claims abstract description 9
- 239000004033 plastic Substances 0.000 claims abstract description 9
- 230000008602 contraction Effects 0.000 claims 1
- 239000004411 aluminium Substances 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000003814 drug Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- -1 Polyethylene Polymers 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000006187 pill Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 210000002105 tongue Anatomy 0.000 description 1
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
- B65D41/34—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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Closures For Containers (AREA)
Abstract
A TR closure of plastics material for application to a standard form of container with a projecting neck ring as herein defined. The closure has a top, an annular skirt depending from the top, a TR band connected to the skirt by frangible means and an annular expandable or adjustable safety flap adapted when in operative position to engage with the underside of the neck ring of the container.
Description
IMPROVEMENTS IN AND RELATING TO CLOSURE CAPS FOR
CONTAINERS
This invention is concerned with the provision of a tamper resistant ('TR) cap or tamper indicating cap made of plastics material and specially adapted for application to a container of standard form provided with a neck ring, as shown for example under reference number G.F.304 in a pamphlet issued by the Glass Manufacturers Federation.
Millions of such standard containers are made every year and such containers are at present closed by what is known in the trade as an ROPP (roll on pilfer proof) cap made of aluminium. ROPP caps are very satisfactory but aluminium is becoming increasingly expensive and a demand has been growing for the production of a tamper resistant cap of plastics material for these standard bottles. The main difficulty in the production of such a cap is that it is necessary for the cap to engage under the neck ring of the standard container. With 2U the existing aluminium ROPP caps appropriate de:Eormation of the metal is effective to shape the cap to eng age under the neck ring and once deformed to the required shape the cap remains in its deformed condition, On the other. hand plastics material after deformation does not normally hold its new shape unless it is positively held in position.
1.~.
CONTAINERS
This invention is concerned with the provision of a tamper resistant ('TR) cap or tamper indicating cap made of plastics material and specially adapted for application to a container of standard form provided with a neck ring, as shown for example under reference number G.F.304 in a pamphlet issued by the Glass Manufacturers Federation.
Millions of such standard containers are made every year and such containers are at present closed by what is known in the trade as an ROPP (roll on pilfer proof) cap made of aluminium. ROPP caps are very satisfactory but aluminium is becoming increasingly expensive and a demand has been growing for the production of a tamper resistant cap of plastics material for these standard bottles. The main difficulty in the production of such a cap is that it is necessary for the cap to engage under the neck ring of the standard container. With 2U the existing aluminium ROPP caps appropriate de:Eormation of the metal is effective to shape the cap to eng age under the neck ring and once deformed to the required shape the cap remains in its deformed condition, On the other. hand plastics material after deformation does not normally hold its new shape unless it is positively held in position.
1.~.
An attempt to solve this problem was made by Kerr Glass Manufacturing Corporation in their European Application published on 29.08.84 under No.0117104 A2.
In accordance with the Kerr Glass proposal a TR closure is provided which includes a threaded cap arid TR means having upwardly and inwardly Folded spaced apart tabs which lock against the lower surface of an annular shoulder formed by the neck ring on the container. A
disadvantage of the Kerr Glass proposal is that it may be possible to remove the cap from the container without breaking the TR means by inserting an implement into the gaps between adjacent tabs.
Another proposal has been put forward by Owens-Illinois Inc. in their European Patent Application published on 02.01.86 under No.0166572 A2. The Owens Illinois proposal also uses spaced apart tabs, which in that proposal are of wedge shape so that when there is an attempt to remove the closure the thicker portion of each tab wedges against the container wall to apply torque to the TR band which breaks the frangible means connecting the band to the s)cirt of the closure. Once again the gaps between adjacent tabs cause a problem.
In another proposal ACI Australia Ltd, have tried to solve this problem in their European Patent Application No.0213742 A2 published on 11.03.87. In the ACI Australia proposal an annular flap is joined to the TR band of the cap so that the gap problem is overcome ..~a~
In accordance with the Kerr Glass proposal a TR closure is provided which includes a threaded cap arid TR means having upwardly and inwardly Folded spaced apart tabs which lock against the lower surface of an annular shoulder formed by the neck ring on the container. A
disadvantage of the Kerr Glass proposal is that it may be possible to remove the cap from the container without breaking the TR means by inserting an implement into the gaps between adjacent tabs.
Another proposal has been put forward by Owens-Illinois Inc. in their European Patent Application published on 02.01.86 under No.0166572 A2. The Owens Illinois proposal also uses spaced apart tabs, which in that proposal are of wedge shape so that when there is an attempt to remove the closure the thicker portion of each tab wedges against the container wall to apply torque to the TR band which breaks the frangible means connecting the band to the s)cirt of the closure. Once again the gaps between adjacent tabs cause a problem.
In another proposal ACI Australia Ltd, have tried to solve this problem in their European Patent Application No.0213742 A2 published on 11.03.87. In the ACI Australia proposal an annular flap is joined to the TR band of the cap so that the gap problem is overcome ..~a~
but unfortunately the container requires specially shaping by the provision of an axially inclined ramp surface on the container and this modification of the container shape would not be welcome to manufacturers who want to use containers o:P standard shape which are already available at a relatively inexpensive price.
There may also be a problem in the correct application of the cap to the container due to the presence of the flap which is completely annular and smooth in profile and so the cap may be difficult to apply to a container.
It is an object of the present invention to provide an improved tamper resistant or tamper indicating cap of plastics material for a standard form of container with a neck ring without any modification to the container.
In accordance with the present invention there is provided a TR closure of plastics material for application to a standard form of container with a projecting neck ring wherein the closure has a top, an annular s)cirt depending from the top, a TR band connected to the skirt by frangible means and an annular expandable or adjustab.lo flap adapted when in operative position to engage with the underside o:E the neck ring o~ the container" Preferably the flap is corrugated or pleated so that it can, if necessary, expand as the closure is being applied to the container and can then contract again so that it is properly seated in operative position.
In order that the invention may be more clearly understood reference is now directed to the accompanying drawings.
Figures 2 to 7 being given by way of example only. In the drawings:-figu re 1 is a side view of the upper part of a container of standard faun according to reference GF 30~.
Figures 2 to 4 are various views of one embodiment of the invention, and Figures 5 to 7 are various views of another embodiment of the invention.
Referring first to Figure 1 a container 1 has a mouth at the top 2, a screw thread 3 around the mouth and a neck ring 4 below the thread 3 shaped to provide a shoulder 5.
In Figures 2 to 4, a cap 6 has a top 7, a depending skirt 8, a screw thread 9, and a TR band 10 connected to the bottom edge of the skirt 8 by frangible tongues 11.
As described so far the cap 6 is of conventional construction, but in accordance with this invention the cap has an expandable or self-adjusting annular flip over ring or flap 12 depending from the bottom of the band 10, the flap being internally corrugated at 13 and having a smooth external surface 14.
The cap 6 may be moulded in an injection moulding machine with the parts in the position shown in Figure 2, the cap may then be applied to the standard container 1 and then the flap 12 may be turned up into the _ 5_ position shown in Figure 4 so that the end of the flap 12 is disposed below the shoulder 5 of the neck ring 4.
If the container be intended to hold medicaments such as pills or medicines or other products which it is desired should not came into contact with plastics material, the cap may be provided with a wad or liner 15 as shown in Figure 4 so arranged that the wad or liner seats an the rim around the mouth of the container and so seals the contents of the container from coming 10 into contact with the plastics material of which the cap is made. As the cap is screwed on to the container, which is usually a glass bottle, the wad or liner 15 is compressed between the rim of the bottle and the inside of the cap so that a very effective seal is produced. If 15 the wad or liner 15 is fitted as a means for providing a seal between bottle and cap, then the inversion of the self-adjusting annular flip-over ring or flap can take place during the insertion of the wad or liner 15. By this means, no further secondary operations are required to prepare the cap 6 for screwing onto the mouth of the container 1. Preferably the cap is made of Palypropylene or High 'Density Polyethylene. The embodiment illustrated in Figures 5 to 7 differ Erom the embodiment illustrated in Figures 2 to 4 only in that the self-adjusting annular flip over ring or flap 12 is corrugated not only internally at 13 but also externally at 1G .
The corrugations illustrated in the two embodiments described give the flap 12 a sufficient degree of adjustability to enable the annular flap easily to pass over the neck ring ~ on the container 1.
In this specification by "a standard form o.f container" we mean a known form of container with a neck ring and substantially in accordance with Figure 1. By '°a tamper resistant cap" we mean a cap that renders the assembly of cap and container resistant to tampering once the cap has been initially applied to the container because the cap cannot be removed without mutilating the cap which in turn gives evidence that the contents of the container may have been tampered with.
It will be understood that a TR closure in accordance with this invention may if desired be corrugated only on the outside with a smooth internal surface.
There may also be a problem in the correct application of the cap to the container due to the presence of the flap which is completely annular and smooth in profile and so the cap may be difficult to apply to a container.
It is an object of the present invention to provide an improved tamper resistant or tamper indicating cap of plastics material for a standard form of container with a neck ring without any modification to the container.
In accordance with the present invention there is provided a TR closure of plastics material for application to a standard form of container with a projecting neck ring wherein the closure has a top, an annular s)cirt depending from the top, a TR band connected to the skirt by frangible means and an annular expandable or adjustab.lo flap adapted when in operative position to engage with the underside o:E the neck ring o~ the container" Preferably the flap is corrugated or pleated so that it can, if necessary, expand as the closure is being applied to the container and can then contract again so that it is properly seated in operative position.
In order that the invention may be more clearly understood reference is now directed to the accompanying drawings.
Figures 2 to 7 being given by way of example only. In the drawings:-figu re 1 is a side view of the upper part of a container of standard faun according to reference GF 30~.
Figures 2 to 4 are various views of one embodiment of the invention, and Figures 5 to 7 are various views of another embodiment of the invention.
Referring first to Figure 1 a container 1 has a mouth at the top 2, a screw thread 3 around the mouth and a neck ring 4 below the thread 3 shaped to provide a shoulder 5.
In Figures 2 to 4, a cap 6 has a top 7, a depending skirt 8, a screw thread 9, and a TR band 10 connected to the bottom edge of the skirt 8 by frangible tongues 11.
As described so far the cap 6 is of conventional construction, but in accordance with this invention the cap has an expandable or self-adjusting annular flip over ring or flap 12 depending from the bottom of the band 10, the flap being internally corrugated at 13 and having a smooth external surface 14.
The cap 6 may be moulded in an injection moulding machine with the parts in the position shown in Figure 2, the cap may then be applied to the standard container 1 and then the flap 12 may be turned up into the _ 5_ position shown in Figure 4 so that the end of the flap 12 is disposed below the shoulder 5 of the neck ring 4.
If the container be intended to hold medicaments such as pills or medicines or other products which it is desired should not came into contact with plastics material, the cap may be provided with a wad or liner 15 as shown in Figure 4 so arranged that the wad or liner seats an the rim around the mouth of the container and so seals the contents of the container from coming 10 into contact with the plastics material of which the cap is made. As the cap is screwed on to the container, which is usually a glass bottle, the wad or liner 15 is compressed between the rim of the bottle and the inside of the cap so that a very effective seal is produced. If 15 the wad or liner 15 is fitted as a means for providing a seal between bottle and cap, then the inversion of the self-adjusting annular flip-over ring or flap can take place during the insertion of the wad or liner 15. By this means, no further secondary operations are required to prepare the cap 6 for screwing onto the mouth of the container 1. Preferably the cap is made of Palypropylene or High 'Density Polyethylene. The embodiment illustrated in Figures 5 to 7 differ Erom the embodiment illustrated in Figures 2 to 4 only in that the self-adjusting annular flip over ring or flap 12 is corrugated not only internally at 13 but also externally at 1G .
The corrugations illustrated in the two embodiments described give the flap 12 a sufficient degree of adjustability to enable the annular flap easily to pass over the neck ring ~ on the container 1.
In this specification by "a standard form o.f container" we mean a known form of container with a neck ring and substantially in accordance with Figure 1. By '°a tamper resistant cap" we mean a cap that renders the assembly of cap and container resistant to tampering once the cap has been initially applied to the container because the cap cannot be removed without mutilating the cap which in turn gives evidence that the contents of the container may have been tampered with.
It will be understood that a TR closure in accordance with this invention may if desired be corrugated only on the outside with a smooth internal surface.
Claims
1. In a tamper resistant closure of plastic material adapted for use with a container having a projecting neck ring, said closure having a top, an annular skirt associated with said top, a tamper resistant band connected to said skirt by frangible means, a lower edge and an annular safety flap having an upper edge and a lower free edge connectable to said lower edge with said upper edge and adaptable to engage with the underside of said neck ring of said container when said closure is attached to said container neck, said safety flap includes a plurality of pleats extending from said upper edge to said free edge enabling expansion and contraction of said safety flap during said closure being attached to said container, said safety flap tapers radially inwardly from said upper edge towards said free edge wherein the diameter of said safety flap is smaller at said free edge than at said upper edge.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8906797.9 | 1989-03-23 | ||
| GB898906797A GB8906797D0 (en) | 1989-03-23 | 1989-03-23 | Improvements in and relating to closure for containers |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2012644A1 CA2012644A1 (en) | 1990-09-23 |
| CA2012644C true CA2012644C (en) | 2002-05-14 |
Family
ID=10653945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002012644A Expired - Lifetime CA2012644C (en) | 1989-03-23 | 1990-03-20 | Improvements in and relating to closure for containers |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP0390412B2 (en) |
| JP (1) | JPH0356257A (en) |
| AU (1) | AU634759B2 (en) |
| CA (1) | CA2012644C (en) |
| DE (1) | DE69006879T3 (en) |
| GB (1) | GB8906797D0 (en) |
| ZA (1) | ZA902206B (en) |
Families Citing this family (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES1021753U (en) * | 1992-05-29 | 1993-01-16 | Novembal, S.A. | Break-away safety cap for containers |
| EG21314A (en) | 1992-07-16 | 2000-10-31 | Driutt Rodney Malcolm | Tamper evident closure |
| US5400913A (en) * | 1992-12-23 | 1995-03-28 | Crown Cork & Seal Company | Tamper-indicating closure |
| JP3256344B2 (en) | 1993-07-21 | 2002-02-12 | 日本山村硝子株式会社 | Pill fur proof cap |
| AU772192C (en) * | 1993-07-21 | 2004-12-02 | Yamamura Glass Co., Ltd. | Pilfer-proof plastic cap |
| TW338413U (en) * | 1994-05-17 | 1998-08-11 | Mikasa Industry Co Ltd | Closing device of a container |
| US5775527A (en) * | 1995-02-10 | 1998-07-07 | Crown Cork Ag | Closure cap with anti-tamper strip |
| US5727705A (en) * | 1996-11-22 | 1998-03-17 | Crown Cork & Seal Technologies Corporation | Closure cap for closure of a container mouth |
| AUPO788597A0 (en) | 1997-07-14 | 1997-08-07 | Closures And Packaging Services Limited | Closure |
| EP1027261B1 (en) | 1997-10-30 | 2004-03-17 | International Plastics and Equipment Corporation | Snap-on screw-off closure |
| US6371317B1 (en) | 1998-08-07 | 2002-04-16 | Kerr Group, Inc. | Tamper indicating closure with foldable tab |
| US7344039B2 (en) | 1998-08-07 | 2008-03-18 | Berry Plastics Corporation | Tamper indicating band having foldable tabs including tab extensions, tamper indicating closure including such tamper indicating band, and tamper indicating closure including such tamper indicating band and container |
| LU90375B1 (en) * | 1999-03-23 | 2000-09-25 | Alain Franchet | Cap - container - mesh neck - and - hanging collar |
| US6491175B1 (en) | 2000-06-28 | 2002-12-10 | Saad Taha | Single piece closure for a pressurized container |
| FR2890943B1 (en) * | 2005-09-21 | 2010-04-16 | Tetra Laval Holdings & Finance | DEVICE FOR CLOSING A CONTAINER COLLAR, CONTAINER EQUIPPED WITH SUCH A DEVICE AND METHOD FOR MANUFACTURING SUCH A DEVICE |
| EP1940692B1 (en) * | 2005-09-21 | 2010-05-26 | Tetra Laval Holdings & Finance SA | Device for closing a container neck, container equipped with same and method for making same |
| DE102010039036A1 (en) * | 2010-08-06 | 2012-02-09 | Bericap Gmbh & Co. Kg | Screw cap with Flexband |
| CN103086067A (en) * | 2011-11-03 | 2013-05-08 | 上海紫日包装有限公司 | Opening marking device for containers with a mouth diameter of 20-30 mm |
| KR200495501Y1 (en) * | 2020-05-26 | 2022-06-08 | 한권일 | Spoon-coupled cutting-type packaging container |
| US20230210167A1 (en) * | 2020-06-12 | 2023-07-06 | Jared A. Lerner | Combination chillum and enclosed pre-roll package smoking apparatus |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4478343A (en) * | 1982-09-23 | 1984-10-23 | Ethyl Molded Products Company | Tamper-indicating closure |
| US4613052A (en) * | 1985-04-29 | 1986-09-23 | Owens-Illinois, Inc. | Tamper-indicating closure, container and combination thereof |
| US4657153A (en) * | 1985-11-18 | 1987-04-14 | Anchor Hocking Corporation | Tamper-evident closure |
| US4801031A (en) * | 1987-05-28 | 1989-01-31 | Owens-Illinois Closure Inc. | Tamper-indicating closures and packages |
-
1989
- 1989-03-23 GB GB898906797A patent/GB8906797D0/en active Pending
-
1990
- 1990-03-20 CA CA002012644A patent/CA2012644C/en not_active Expired - Lifetime
- 1990-03-21 DE DE69006879T patent/DE69006879T3/en not_active Expired - Lifetime
- 1990-03-21 EP EP90303030A patent/EP0390412B2/en not_active Expired - Lifetime
- 1990-03-22 AU AU52154/90A patent/AU634759B2/en not_active Expired
- 1990-03-22 ZA ZA902206A patent/ZA902206B/en unknown
- 1990-03-23 JP JP2072240A patent/JPH0356257A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| EP0390412B1 (en) | 1994-03-02 |
| DE69006879D1 (en) | 1994-04-07 |
| DE69006879T3 (en) | 2000-05-31 |
| DE69006879T2 (en) | 1994-06-09 |
| CA2012644A1 (en) | 1990-09-23 |
| ZA902206B (en) | 1991-01-30 |
| JPH0356257A (en) | 1991-03-11 |
| AU5215490A (en) | 1990-09-27 |
| EP0390412A1 (en) | 1990-10-03 |
| EP0390412B2 (en) | 1999-03-10 |
| AU634759B2 (en) | 1993-03-04 |
| GB8906797D0 (en) | 1989-05-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKEX | Expiry | ||
| MKEX | Expiry |
Effective date: 20100320 |