CA2035079C - Screw top - Google Patents
Screw topInfo
- Publication number
- CA2035079C CA2035079C CA002035079A CA2035079A CA2035079C CA 2035079 C CA2035079 C CA 2035079C CA 002035079 A CA002035079 A CA 002035079A CA 2035079 A CA2035079 A CA 2035079A CA 2035079 C CA2035079 C CA 2035079C
- Authority
- CA
- Canada
- Prior art keywords
- sealing ring
- skirt
- elements
- screw top
- prolongations
- 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 - Fee Related
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
- B65D41/34—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
- 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
- B65D41/3404—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt with ratchet-and-pawl mechanism between the container and the closure skirt or the tamper element
- B65D41/3409—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt with ratchet-and-pawl mechanism between the container and the closure skirt or the tamper element the tamper element being integrally connected to the closure by means of bridges
- B65D41/3414—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt with ratchet-and-pawl mechanism between the container and the closure skirt or the tamper element the tamper element being integrally connected to the closure by means of bridges with drive means between closure and tamper element
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Closures For Containers (AREA)
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
- Dowels (AREA)
- Taps Or Cocks (AREA)
Abstract
The invention relates to a screw top comprising essentially two elements formed by a skirt and a sealing ring connected together in a number of places by means of small cross-elements which can be broken when unscrewing the top, characterised in that of said two elements, either the skirt (2) or the sealing ring (3) compri-ses prolongations (8-10) which extend sufficiently far towards and beyond the opposite element so as to prevent any deformation of the sealing ring (3) in the radial direction of the top.
Description
-- I, 2035079 SCREW TOP
The present invention relates to a screw top compris-ing essentially two elements formed by a skirt and a sealing ring which is in a predetermined number of places connected to said skirt by means of small cross-elements which can be broken when unscrewing the top due to their small section.
A top which offers this particularity has been the subject of the Luxemburg Patent Application No. 87469 of March 8, 1989 in the name of the applicant.
The top described in this patent application has such a structure that the displacements of the skirt with respect to the sealing ring according to the geometrical axis of the top do not cause a too early and thus untimely separation of these two top elements. The tops of this type, conceived by the applicant, form thus from this point of view a remarkable amelioration.
However, it appeared that the sealing ring could still come loose from the skirt due to shocks transmitted to these tops during their transfer in distribution machines.
Indeed, the lateral shocks transmitted to these tops can cause the rupture of some of the small cross-elements to which is referred to in the preamble.
The present patent application has for its object to remedy this serious disadvantage, i.e. that which causes that too many tops to be removed and which requires inspections which would be preferably avoided.
Therefore this invention seeks to provide a screw top ~ ~ 71224-2 ;. ~
having a longitudinal axis comprising:
a skirt disposed about said axis;
a sealing ring disposed about said axis and spaced from the skirt leaving an axial gap therebetween;
a predetermined number of cross-elements extending between a lower edge of said skirt and an upper edge of said sealing ring for being broken when unscrewing the skirt due to their small section;
prolongation means extending from said lower edge of said skirt towards and beyond said upper edge of said sealing ring along an innermost side of said sealing ring for preventing any deformation of said sealing ring in a radial direction so as to avoid rupture of said cross-elements.
Other details and advantages of the invention will appear from the following description of a screw top equipped with a sealing ring according to the invention. This description is only given by way of example and does not limit the invention. The reference numerals relate to the annexed figures.
Figure 1 is partly a section and partly an elevational view of the top according to the invention in a first embodiment.
Figure 2 is an analogous view related to a first variant.
Figure 3 is an analogous view related to a second variant.
Figure 4 is an analogous view related to a third variant.
The screw top 1 shown in these four figures comprises a skirt 2 and a sealing ring 3.
On the skirt or on the sealing ring can be provided protective backing elements 4 which prevent that the skirt 2 approaches completely the sealing ring 3 whereby some of the small cross-elements 5 connecting the sealing ring to the skirt would break.
All these details, such as the presence of a tooth 6 projecting into a cutout 7 of the sealing ring 2, have been described in the above-mentioned Luxemburg application.
It is to be noted that the present invention aims at improving these but also other types of tops provided that they comprise a skirt, a sealing ring and small cross-elements connecting these elements together.
In order to avoid that one or more of these small cross-elements would be broken during mechanical manipulations, means are provided, according to the present patent application, which prevent any radial displacement of the sealing ring 3, i.e. any - 2a -movement towards the in - or the outside of the top.
This object can be reached by different possible, technical embodiments but it will be clear that some of them ~vill give problems with respect to the design of the injection moulds.
5Referring to Figure 1, it can be seen that the skirt 2 comprises a prolongation 8 directed towards the sealing ring 3.
When the top and the sealing ring take the position shown in the figure, i.e. when the small cross-elements aren't broken yet, the prolongation 8 of the skirt 2 of the top extends sufficiently far so 10as to prevent ai~y radial deformation of the sealing ring. Thereto it is enough that the prolongation 8 extends a tenth of a millimeter or some tenths of a millimeter beyond the edge of the sealing ring which is directed towards the skirt.
A f irst variant of the top according to the invention 15is represented in Figure 2 wherein the prolongation, indicated here by reference 9, is provided at the outer side of the sealing ring 3.
It's enough that the prolongation 9 extends very slightly beyond the free edge of the sealing ring 3 to prevent any radial movement of this sealing ring. In the two cases, the sealing ring keeps perf ectly 20its circular shape and no rupture of the small cross-elements 5 is to be feared.
The same situation is created by the second variant shown in Figure 3 wherein it is on the contrary the sealing ring 3 which is provided with a prolongation, indicated by reference 10, 25at the outsider of the part of the top skirt 2 which is directed towards the sealing ring.
It will be clear that even when the most logical embodiments consist in providing prolongations 8-10 extending circularly over the total periphery either of the skirt of the top or of the sealing 30ring, these prolongations could also be provided at some places only.
In a last variant it would also be possible to prolong all the ribs 11 or some of them. By rib it has to be understood the vertical projections, the skirt of certain tops present at the outside, generally with the object to make screwing and unscrewing easier.
35Although several embodiments have been described, ~ 4 ~ 2035079 some of which have to be considered as preferred embodiments from the point of view of realising pieces which permit the injection of tops according to the invention, it will be noted that all these embodi-ments realise the same object which is to prevent any radial movement of the sealing ring, these movements being the cause of the rupture of the small cross-elements 5.
In principle, the invention is thus not limited to the described embodiments and many modifiations could be brought thereon without leaving the scope of the present Patent Application.
The present invention relates to a screw top compris-ing essentially two elements formed by a skirt and a sealing ring which is in a predetermined number of places connected to said skirt by means of small cross-elements which can be broken when unscrewing the top due to their small section.
A top which offers this particularity has been the subject of the Luxemburg Patent Application No. 87469 of March 8, 1989 in the name of the applicant.
The top described in this patent application has such a structure that the displacements of the skirt with respect to the sealing ring according to the geometrical axis of the top do not cause a too early and thus untimely separation of these two top elements. The tops of this type, conceived by the applicant, form thus from this point of view a remarkable amelioration.
However, it appeared that the sealing ring could still come loose from the skirt due to shocks transmitted to these tops during their transfer in distribution machines.
Indeed, the lateral shocks transmitted to these tops can cause the rupture of some of the small cross-elements to which is referred to in the preamble.
The present patent application has for its object to remedy this serious disadvantage, i.e. that which causes that too many tops to be removed and which requires inspections which would be preferably avoided.
Therefore this invention seeks to provide a screw top ~ ~ 71224-2 ;. ~
having a longitudinal axis comprising:
a skirt disposed about said axis;
a sealing ring disposed about said axis and spaced from the skirt leaving an axial gap therebetween;
a predetermined number of cross-elements extending between a lower edge of said skirt and an upper edge of said sealing ring for being broken when unscrewing the skirt due to their small section;
prolongation means extending from said lower edge of said skirt towards and beyond said upper edge of said sealing ring along an innermost side of said sealing ring for preventing any deformation of said sealing ring in a radial direction so as to avoid rupture of said cross-elements.
Other details and advantages of the invention will appear from the following description of a screw top equipped with a sealing ring according to the invention. This description is only given by way of example and does not limit the invention. The reference numerals relate to the annexed figures.
Figure 1 is partly a section and partly an elevational view of the top according to the invention in a first embodiment.
Figure 2 is an analogous view related to a first variant.
Figure 3 is an analogous view related to a second variant.
Figure 4 is an analogous view related to a third variant.
The screw top 1 shown in these four figures comprises a skirt 2 and a sealing ring 3.
On the skirt or on the sealing ring can be provided protective backing elements 4 which prevent that the skirt 2 approaches completely the sealing ring 3 whereby some of the small cross-elements 5 connecting the sealing ring to the skirt would break.
All these details, such as the presence of a tooth 6 projecting into a cutout 7 of the sealing ring 2, have been described in the above-mentioned Luxemburg application.
It is to be noted that the present invention aims at improving these but also other types of tops provided that they comprise a skirt, a sealing ring and small cross-elements connecting these elements together.
In order to avoid that one or more of these small cross-elements would be broken during mechanical manipulations, means are provided, according to the present patent application, which prevent any radial displacement of the sealing ring 3, i.e. any - 2a -movement towards the in - or the outside of the top.
This object can be reached by different possible, technical embodiments but it will be clear that some of them ~vill give problems with respect to the design of the injection moulds.
5Referring to Figure 1, it can be seen that the skirt 2 comprises a prolongation 8 directed towards the sealing ring 3.
When the top and the sealing ring take the position shown in the figure, i.e. when the small cross-elements aren't broken yet, the prolongation 8 of the skirt 2 of the top extends sufficiently far so 10as to prevent ai~y radial deformation of the sealing ring. Thereto it is enough that the prolongation 8 extends a tenth of a millimeter or some tenths of a millimeter beyond the edge of the sealing ring which is directed towards the skirt.
A f irst variant of the top according to the invention 15is represented in Figure 2 wherein the prolongation, indicated here by reference 9, is provided at the outer side of the sealing ring 3.
It's enough that the prolongation 9 extends very slightly beyond the free edge of the sealing ring 3 to prevent any radial movement of this sealing ring. In the two cases, the sealing ring keeps perf ectly 20its circular shape and no rupture of the small cross-elements 5 is to be feared.
The same situation is created by the second variant shown in Figure 3 wherein it is on the contrary the sealing ring 3 which is provided with a prolongation, indicated by reference 10, 25at the outsider of the part of the top skirt 2 which is directed towards the sealing ring.
It will be clear that even when the most logical embodiments consist in providing prolongations 8-10 extending circularly over the total periphery either of the skirt of the top or of the sealing 30ring, these prolongations could also be provided at some places only.
In a last variant it would also be possible to prolong all the ribs 11 or some of them. By rib it has to be understood the vertical projections, the skirt of certain tops present at the outside, generally with the object to make screwing and unscrewing easier.
35Although several embodiments have been described, ~ 4 ~ 2035079 some of which have to be considered as preferred embodiments from the point of view of realising pieces which permit the injection of tops according to the invention, it will be noted that all these embodi-ments realise the same object which is to prevent any radial movement of the sealing ring, these movements being the cause of the rupture of the small cross-elements 5.
In principle, the invention is thus not limited to the described embodiments and many modifiations could be brought thereon without leaving the scope of the present Patent Application.
Claims (3)
1. A screw top having a longitudinal axis comprising:
a skirt disposed about said axis;
a sealing ring disposed about said axis and spaced from the skirt leaving an axial gap therebetween;
a predetermined number of cross-elements extending between a lower edge of said skirt and an upper edge of said sealing ring for being broken when unscrewing the skirt due to their small section;
prolongation means extending from said lower edge of said skirt towards and beyond said upper edge of said sealing ring along an innermost side of said sealing ring for preventing any deformation of said sealing ring in a radial direction so as to avoid rupture of said cross-elements.
a skirt disposed about said axis;
a sealing ring disposed about said axis and spaced from the skirt leaving an axial gap therebetween;
a predetermined number of cross-elements extending between a lower edge of said skirt and an upper edge of said sealing ring for being broken when unscrewing the skirt due to their small section;
prolongation means extending from said lower edge of said skirt towards and beyond said upper edge of said sealing ring along an innermost side of said sealing ring for preventing any deformation of said sealing ring in a radial direction so as to avoid rupture of said cross-elements.
2. A screw top as claimed in claim 1, wherein said prolongations extend in a direction substantially parallel to said longitudinal axis of said top.
3. A screw top as claimed in claim 1, wherein the prolongation means comprises a plurality of circumferentially spaced prolongations.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP90870020A EP0441112B1 (en) | 1990-02-05 | 1990-02-05 | Screw cap |
| EP90870020.6 | 1990-02-05 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2035079A1 CA2035079A1 (en) | 1991-08-06 |
| CA2035079C true CA2035079C (en) | 1995-09-12 |
Family
ID=8206064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002035079A Expired - Fee Related CA2035079C (en) | 1990-02-05 | 1991-01-28 | Screw top |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP0441112B1 (en) |
| AT (1) | ATE100048T1 (en) |
| CA (1) | CA2035079C (en) |
| DE (1) | DE69006006T2 (en) |
| DK (1) | DK0441112T3 (en) |
| ES (1) | ES2049461T3 (en) |
Families Citing this family (3)
| 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 |
| DE19537163C1 (en) * | 1995-10-06 | 1997-01-30 | Vetter & Co Apotheker | Syringe for medical purposes |
| ITMI20062181A1 (en) * | 2006-11-14 | 2008-05-15 | Guglielmo Ferrari | SCREW CAP WITH SAFETY RING |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4147268A (en) * | 1976-09-24 | 1979-04-03 | Patel Chandrakant S | Pilfer-proof closure for containers |
| FR2507160A1 (en) * | 1981-06-05 | 1982-12-10 | Barre Rene | CLOSING DEVICE FOR BOTTLES |
| US4527706A (en) * | 1984-02-13 | 1985-07-09 | Owens-Illinois, Inc. | Tamper indicating package |
| LU87469A1 (en) * | 1989-03-08 | 1989-08-30 | Lynes Holding Sa | SCREW CAP |
-
1990
- 1990-02-05 EP EP90870020A patent/EP0441112B1/en not_active Expired - Lifetime
- 1990-02-05 ES ES90870020T patent/ES2049461T3/en not_active Expired - Lifetime
- 1990-02-05 DK DK90870020.6T patent/DK0441112T3/en active
- 1990-02-05 DE DE69006006T patent/DE69006006T2/en not_active Expired - Fee Related
- 1990-02-05 AT AT90870020T patent/ATE100048T1/en not_active IP Right Cessation
-
1991
- 1991-01-28 CA CA002035079A patent/CA2035079C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CA2035079A1 (en) | 1991-08-06 |
| ES2049461T3 (en) | 1994-04-16 |
| EP0441112A1 (en) | 1991-08-14 |
| DK0441112T3 (en) | 1994-05-02 |
| DE69006006D1 (en) | 1994-02-24 |
| DE69006006T2 (en) | 1994-09-08 |
| EP0441112B1 (en) | 1994-01-12 |
| ATE100048T1 (en) | 1994-01-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5273173A (en) | Screw top | |
| US4899898A (en) | Closures for containers | |
| JP2820798B2 (en) | Threaded cap and anti-pry ring, package with such a cap, method of making such a cap, and method of making such a package | |
| EP1086023B1 (en) | Plastic screw cap with tamper-evident ring | |
| US4997096A (en) | Child resistant closures | |
| US5024509A (en) | Structural combination of plastic lenses | |
| KR950702494A (en) | Tamper Evident Closure | |
| ZA939601B (en) | Tamper-indicating closure. | |
| US6116443A (en) | Plastic screw cap with tamper-evident ring | |
| RU2205142C2 (en) | Protective cover for bottle | |
| EP0337046B1 (en) | One-piece bottle top with deformable break-open seal | |
| RU2133700C1 (en) | Plastic seal for bottles | |
| RU2000100317A (en) | BOTTLE PROTECTIVE COVER | |
| US20180162605A1 (en) | An anti-counterfeit bottle cap | |
| CA2035079C (en) | Screw top | |
| US4775064A (en) | Guarantee band for a container closure | |
| US4458824A (en) | Fuel cap assembly | |
| DE69301047T2 (en) | Container closure | |
| US4555039A (en) | Pilfer-proof cap | |
| CN2094640U (en) | Connecting structure | |
| US6543634B1 (en) | Plastic screw cap with pilferproof ring | |
| GB2223748A (en) | Closures | |
| GB2199571A (en) | Closures for containers | |
| CA2130257A1 (en) | Tamper-indicating closure and method of manufacturing a tamper-indicating closure | |
| US4174044A (en) | Original closure member |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |