GB2133394A - Improvements relating to closures - Google Patents
Improvements relating to closures Download PDFInfo
- Publication number
- GB2133394A GB2133394A GB08235612A GB8235612A GB2133394A GB 2133394 A GB2133394 A GB 2133394A GB 08235612 A GB08235612 A GB 08235612A GB 8235612 A GB8235612 A GB 8235612A GB 2133394 A GB2133394 A GB 2133394A
- Authority
- GB
- United Kingdom
- Prior art keywords
- neck
- rib
- closure
- sealing
- ribs
- 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.)
- Withdrawn
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
- B65D41/02—Caps or cap-like covers without lines of weakness, tearing strips, tags, or like opening or removal devices
- B65D41/04—Threaded or like caps or cap-like covers secured by rotation
- B65D41/0407—Threaded or like caps or cap-like covers secured by rotation with integral sealing means
- B65D41/0428—Threaded or like caps or cap-like covers secured by rotation with integral sealing means formed by a collar, flange, rib or the like contacting the top rim or the top edges or the external surface of a container neck
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Closures For Containers (AREA)
Abstract
A closure for application to the screw-threaded neck of a container is moulded in one piece from a resilient plastics material and has a top 11 with a dependent skirt 12 screw- threaded on its internal surface. Spaced below the top 11 the skirt has an inwardly projecting rib 14. An outwardly projecting rib 17 is connected to the top 11 and forms with rib 14 a downwardly open channel for receiving the top portion of the neck of the container. Ribs 20 are formed on the underside of the top 11 and project downward into the channel to form a seal with the top edge of the neck. In a variant, rib 14 is replaced by two, undercut, triangular section ribs (25, 26, Fig. 2) and rib 17 has two similar ribs (28, 29) at the other side of the channel. <IMAGE>
Description
SPECIFICATION
Improvements relating to closures
This invention relates to closures.
According to the invention there is provided a closure for application to the externally threaded neck of a container, which closure is moulded in one piece from a plastics material and comprises a top and a depending skirt having an internal screw-thread, a first annular sealing rib extending radially inwardly from the internal surface of the skirt at a location above the screw thereof and spaced below the top of the closure, and a radially outwardly directed second annular sealing rib depending from the underside of the top, so as with the top and skirt to form an annular channel for accommodating the top edge portion of the neck of the container and forming a seal by engagement of the first and/or second sealing rib with said top edge portion, the top of the closure being formed with one or more further annular sealing ribs projecting downward into the channel to form a seal with the top edge of the neck portion of the container.
The invention will now be described in more detail with reference to the accompanying drawings in which:
Figure 1 shows a first embodiment of the invention in axial section, and
Figure 2 shows a second embodiment of the invention in axiai section.
Referring to Figure 1 a closure 10 is moulded in one piece from a resilient plastics material. The closure is designed to provide a seal for a bottole containing a beverage under pressure i.e. a carbonated pressure and to be re-usable to reseal the bottle after part of its contents have been removed. The closure has a top 11 and a skirt 12 which is internally screw-threaded, and externally knurled for improvement manual grip. Above its screw-thread ridge 13 and adjacent the top the skirt has an internal radially-inwardly projecting sealing rib 14 the tip 1 5 of which extends inward to a greater extent than the screw-thread ridge 13.
The tip 1 5 of the rib is in this instance radiussed.
Spaced radially inwardly from rib 14 the top 11 has a downwardly and outwardly extending rib 17 the tip 1 8 of which is radiussed and projects towards rib 14. The ribs 14, 17 and the top together define an annular channel 1 9 to receive and form a seal with the top edge portions of the neck of the bottole, and the top 11 has in the channel two triangular section sealing ribs 20 for engaging the end face of the neck of the bottle.
In use of the closure, the end portion of the neck of the bottle is forced into the channel as the closure is screwed home so that the sealing ribs 1 4 and 1 7 can engage external and internal
surfaces respectively of the neck to form a seal
and so that the ribs 20 come into sealing
engagement with the top end of the neck. The
positions of and spacing between the ribs 14 and
1 7 are preferably determined in accordance with
the tolerances on the neck size of the bottle. For
example the tolerance on the neck diameter of a
glass bottle is based on the outside diameter, and
it is arranged that when the neck diameter is on
the upper limit the outer rib 14 is in full sealing
engagement with the neck and on the lower limit,
a rib 1 4 is in light sealing contact with the neck.
The internal diameter of the neck is not the subject of tolerance but tends to be a predetermined amount less than the outside diameter and in consequence, the sealing pressure between the inner rib 1 7 and the internal surface of the neck tends to vary inversely as the pressure of rib 14 on the neck, so that a lighter sealing pressure by one of ribs 14, 1 7 is compensated by a heavier pressure by the other rib.
In a variant illustrated in Figure 2 of the drawings, rib 14 is repiaced by two triangular ribs 25, 26 which are disposed in series and which are undercut at their sides remote from the top 11, and an additional similarly undercut triangular rib 27 is disposed so as for sealing engagement with the radiussed outer corner portion of the neck of the bottle. Rib 1 7 is replaced by triangular ribs 28, 29 which are undercut at their sides remote from the top 11, and an additional similarly undercut rib 30 is disposed for sealing engagement with the radiussed inner corner portion of the neck.
The sealing apices of these ribs may have an included angle of 300.
Claims (filed on 28/10/83)
1. A closure for application to the externally
threaded neck of a container, which closure is
moulded in one piece from a resilient plastics
material and comprises a top and a depending
skirt having an internal screw-thread, a first
annular sealing rib extending radially inwardly from the internal surface of the skirt at a location
above the screw-thread thereof and spaced below the top of the closure, and a radially outwardly directed second annular sealing rib connected to the top, so as with the top and skirt to form an
annular channel for accommodating the top
portion of the neck of the container and forming a seal by engagement of the first and/or second sealing rib with the radially outer and/or radially inner surfaces respectively of said top portion of the neck, the top of the closure being formed with one or more further annular sealing ribs projecting downward into the channel to form a seal with the top of the neck of the container.
**WARNING** end of DESC field may overlap start of CLMS **.
Claims (1)
- **WARNING** start of CLMS field may overlap end of DESC **.SPECIFICATION Improvements relating to closures This invention relates to closures.According to the invention there is provided a closure for application to the externally threaded neck of a container, which closure is moulded in one piece from a plastics material and comprises a top and a depending skirt having an internal screw-thread, a first annular sealing rib extending radially inwardly from the internal surface of the skirt at a location above the screw thereof and spaced below the top of the closure, and a radially outwardly directed second annular sealing rib depending from the underside of the top, so as with the top and skirt to form an annular channel for accommodating the top edge portion of the neck of the container and forming a seal by engagement of the first and/or second sealing rib with said top edge portion, the top of the closure being formed with one or more further annular sealing ribs projecting downward into the channel to form a seal with the top edge of the neck portion of the container.The invention will now be described in more detail with reference to the accompanying drawings in which: Figure 1 shows a first embodiment of the invention in axial section, and Figure 2 shows a second embodiment of the invention in axiai section.Referring to Figure 1 a closure 10 is moulded in one piece from a resilient plastics material. The closure is designed to provide a seal for a bottole containing a beverage under pressure i.e. a carbonated pressure and to be re-usable to reseal the bottle after part of its contents have been removed. The closure has a top 11 and a skirt 12 which is internally screw-threaded, and externally knurled for improvement manual grip. Above its screw-thread ridge 13 and adjacent the top the skirt has an internal radially-inwardly projecting sealing rib 14 the tip 1 5 of which extends inward to a greater extent than the screw-thread ridge 13.The tip 1 5 of the rib is in this instance radiussed.Spaced radially inwardly from rib 14 the top 11 has a downwardly and outwardly extending rib 17 the tip 1 8 of which is radiussed and projects towards rib 14. The ribs 14, 17 and the top together define an annular channel 1 9 to receive and form a seal with the top edge portions of the neck of the bottole, and the top 11 has in the channel two triangular section sealing ribs 20 for engaging the end face of the neck of the bottle.In use of the closure, the end portion of the neck of the bottle is forced into the channel as the closure is screwed home so that the sealing ribs 1 4 and 1 7 can engage external and internal surfaces respectively of the neck to form a seal and so that the ribs 20 come into sealing engagement with the top end of the neck. The positions of and spacing between the ribs 14 and1 7 are preferably determined in accordance with the tolerances on the neck size of the bottle. For example the tolerance on the neck diameter of a glass bottle is based on the outside diameter, and it is arranged that when the neck diameter is on the upper limit the outer rib 14 is in full sealing engagement with the neck and on the lower limit, a rib 1 4 is in light sealing contact with the neck.The internal diameter of the neck is not the subject of tolerance but tends to be a predetermined amount less than the outside diameter and in consequence, the sealing pressure between the inner rib 1 7 and the internal surface of the neck tends to vary inversely as the pressure of rib 14 on the neck, so that a lighter sealing pressure by one of ribs 14, 1 7 is compensated by a heavier pressure by the other rib.In a variant illustrated in Figure 2 of the drawings, rib 14 is repiaced by two triangular ribs 25, 26 which are disposed in series and which are undercut at their sides remote from the top 11, and an additional similarly undercut triangular rib 27 is disposed so as for sealing engagement with the radiussed outer corner portion of the neck of the bottle. Rib 1 7 is replaced by triangular ribs 28, 29 which are undercut at their sides remote from the top 11, and an additional similarly undercut rib 30 is disposed for sealing engagement with the radiussed inner corner portion of the neck.The sealing apices of these ribs may have an included angle of 300.Claims (filed on 28/10/83) 1. A closure for application to the externally threaded neck of a container, which closure is moulded in one piece from a resilient plastics material and comprises a top and a depending skirt having an internal screw-thread, a first annular sealing rib extending radially inwardly from the internal surface of the skirt at a location above the screw-thread thereof and spaced below the top of the closure, and a radially outwardly directed second annular sealing rib connected to the top, so as with the top and skirt to form an annular channel for accommodating the top portion of the neck of the container and forming a seal by engagement of the first and/or second sealing rib with the radially outer and/or radially inner surfaces respectively of said top portion of the neck, the top of the closure being formed with one or more further annular sealing ribs projecting downward into the channel to form a seal with the top of the neck of the container.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB08235612A GB2133394A (en) | 1982-12-14 | 1982-12-14 | Improvements relating to closures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB08235612A GB2133394A (en) | 1982-12-14 | 1982-12-14 | Improvements relating to closures |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB2133394A true GB2133394A (en) | 1984-07-25 |
Family
ID=10534974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB08235612A Withdrawn GB2133394A (en) | 1982-12-14 | 1982-12-14 | Improvements relating to closures |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2133394A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2145070A (en) * | 1983-08-18 | 1985-03-20 | Robbco Neoprene | Improved cap cover |
| US4971213A (en) * | 1987-04-21 | 1990-11-20 | Japan Crown Cork Co., Ltd. | Plastic cap |
| US5161707A (en) * | 1992-02-20 | 1992-11-10 | Continental Plastics, Inc. | Closure with linerless seal |
| AT410202B (en) * | 1998-10-30 | 2003-03-25 | Poly Plastic Ag | Plastic container screw cap |
| US6889857B2 (en) * | 2002-02-01 | 2005-05-10 | Rexam Medical Packaging Inc. | Sealing arrangement for a closure for a fitment |
| US7014060B2 (en) | 2002-07-19 | 2006-03-21 | Ball Corporation | Twist opening sealing container |
| US7651004B2 (en) | 2005-05-12 | 2010-01-26 | Rexam Closure Systems Inc. | Linerless closure and package |
| US20120234850A1 (en) * | 2011-03-17 | 2012-09-20 | Brad Anthony Picard | Cover for container |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1532767A (en) * | 1976-02-03 | 1978-11-22 | Grussen J | Closures for bottles or jars |
| EP0004500A2 (en) * | 1978-03-28 | 1979-10-03 | Captocap Limited | Plastic tamperproof closure and mould for the manufacture thereof |
| EP0029274A2 (en) * | 1979-11-20 | 1981-05-27 | B.V. Verenigde Kunststof Bedrijven (V.K.B.) | Screw cap |
| GB2120219A (en) * | 1982-05-17 | 1983-11-30 | Metal Closures Group Plc | Containers |
-
1982
- 1982-12-14 GB GB08235612A patent/GB2133394A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1532767A (en) * | 1976-02-03 | 1978-11-22 | Grussen J | Closures for bottles or jars |
| EP0004500A2 (en) * | 1978-03-28 | 1979-10-03 | Captocap Limited | Plastic tamperproof closure and mould for the manufacture thereof |
| EP0029274A2 (en) * | 1979-11-20 | 1981-05-27 | B.V. Verenigde Kunststof Bedrijven (V.K.B.) | Screw cap |
| GB2120219A (en) * | 1982-05-17 | 1983-11-30 | Metal Closures Group Plc | Containers |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2145070A (en) * | 1983-08-18 | 1985-03-20 | Robbco Neoprene | Improved cap cover |
| US4971213A (en) * | 1987-04-21 | 1990-11-20 | Japan Crown Cork Co., Ltd. | Plastic cap |
| US5161707A (en) * | 1992-02-20 | 1992-11-10 | Continental Plastics, Inc. | Closure with linerless seal |
| AT410202B (en) * | 1998-10-30 | 2003-03-25 | Poly Plastic Ag | Plastic container screw cap |
| US6889857B2 (en) * | 2002-02-01 | 2005-05-10 | Rexam Medical Packaging Inc. | Sealing arrangement for a closure for a fitment |
| US7014060B2 (en) | 2002-07-19 | 2006-03-21 | Ball Corporation | Twist opening sealing container |
| US7651004B2 (en) | 2005-05-12 | 2010-01-26 | Rexam Closure Systems Inc. | Linerless closure and package |
| US20120234850A1 (en) * | 2011-03-17 | 2012-09-20 | Brad Anthony Picard | Cover for container |
| US9038851B2 (en) * | 2011-03-17 | 2015-05-26 | Chamness Biodegradables, Lll | Cover for container |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0119055A2 (en) | Improvements relating to closures | |
| US4489845A (en) | Screw-cap for container | |
| US4177905A (en) | Closure system for containers | |
| US4276989A (en) | Closures | |
| US4564117A (en) | Bottle closure | |
| US6032829A (en) | Container and closure package and method of making same | |
| US3352448A (en) | Resilient closure | |
| US4682700A (en) | Safety closure and container package | |
| GB2033350A (en) | Tamperproof closure | |
| US4579239A (en) | Container and child resistant closure assembly | |
| GB2369114A (en) | User-friendly cap with plug seal | |
| GB2120219A (en) | Containers | |
| JPS6313854U (en) | ||
| KR960013293B1 (en) | Linerless closure for carbonated beverage container | |
| US4448319A (en) | Screw cap | |
| EP0136088A2 (en) | Improvements relating to container closures | |
| GB2133394A (en) | Improvements relating to closures | |
| US4429802A (en) | Linerless closure cap | |
| US3861549A (en) | Container and closure therefor and method of manufacture thereof | |
| US4526284A (en) | Plastic closure with sealing fin | |
| US3974929A (en) | Child resistant closure | |
| GB2166422A (en) | Screw-threaded closure-container assembly | |
| US3181719A (en) | Containers and closure caps for same | |
| GB2222821A (en) | Closures for releasably sealing containers | |
| GB2126565A (en) | Screw-capped container |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |