CA2219085A1 - Closure device for containers - Google Patents
Closure device for containers Download PDFInfo
- Publication number
- CA2219085A1 CA2219085A1 CA002219085A CA2219085A CA2219085A1 CA 2219085 A1 CA2219085 A1 CA 2219085A1 CA 002219085 A CA002219085 A CA 002219085A CA 2219085 A CA2219085 A CA 2219085A CA 2219085 A1 CA2219085 A1 CA 2219085A1
- Authority
- CA
- Canada
- Prior art keywords
- closure device
- container
- mouldings
- closure
- expanded polystyrene
- 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.)
- Abandoned
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
- B65D39/00—Closures arranged within necks or pouring openings or in discharge apertures, e.g. stoppers
- B65D39/0005—Closures arranged within necks or pouring openings or in discharge apertures, e.g. stoppers made in one piece
- B65D39/0011—Closures arranged within necks or pouring openings or in discharge apertures, e.g. stoppers made in one piece from natural or synthetic cork, e.g. for wine bottles or the like
-
- 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
- B65D39/00—Closures arranged within necks or pouring openings or in discharge apertures, e.g. stoppers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M1/00—Inking and printing with a printer's forme
- B41M1/40—Printing on bodies of particular shapes, e.g. golf balls, candles, wine corks
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Closures For Containers (AREA)
- Supplying Of Containers To The Packaging Station (AREA)
- Package Closures (AREA)
Abstract
A closure device for a container such as a wine bottle comprising a body (1) of circular cross section, preferably cylindrical, which is adapted to fit in an opening in the container to seal said container said body consisting essentially of a moulded foamed closed-cell polymer of copolymer, preferably expanded polystyrene, having a substantially uniform density of at least 0.03 g/cc. The closure device may be partially or wholly coated with a sealing material (5), waxed, coloured and/or surface-treated to render it even closer in appearance to cork, and printed on.
Description
CA 0221908~ 1997-10-23 CLOSURE DEVICE FOR CONTAINERS
This invention relates to a closure device for containers.
Closure devices for containers are commonly made of natural materials such as cork. These are used for temporarily sealing containers in order to prevent spillage and to preserve the contents of the container. They have a traditional appeal and are effective. Very large quantities are used in wine bottling and they are also used for other foodstuffs and for other substances such as cosmetics. However, they have the disadvantage of being relatively expensive, are labour intensive to produce, are subject to quality variations and can introduce microorganisms and other impurities to the stored substance. These disadvantages have been recognised for some time and synthetic substitutes have been developed using synthetic rubbers and plastics.
These, however, have the disadvantages of being more expensive than natural materials, of not being readily reusable, of not looking and feeling like natural materials and of behaving differently to the natural materials. Consumers notice these differences and are put off, thus reducing the acceptability of these substitutes in the marketplace. There is thus a need for a synthetic closure which looks, feels and behaves similarly to the natural material but with advantages of low cost, consistent quality, and of being sterile.
In EP-A-0 496 194 there is described and claimed a sealing closure for containers of liquids ; characterised in that it comprises a substantially cylindrical plastic element, which may be made of foamed polystyrene, in which an also substantially cylindrical elastic insert, which may be of cork, is CA 0221908~ 1997-10-23 axially ~r~h~ e~. However, such a design of closure appears potentially to have serious drawbacks from the point of view of lack of sterility due to the presence of the natural cork; from the point of view of structural integrity; and from the point of view of inadequate elastic behaviour. Also, although it is stated in the description of the patent specification that the production cost will be low, the complex structure of the product would indicate the contrary.
There is therefore still a demand for a satisfactory alternative to cork closures for containers, and particularly for liquid containers such as wine bottles.
According to the present invention there is provided a closure device for a container comprising a body of circular cross-section which is preferably cylindrical and which is adapted to fit in an opening in the container to seal said container said body consisting essentially of moulded foamed closed-cell polymer or copolymer preferably expanded polystyrene, having a substantially uniform density of at least 0.03 g/cc.
It should be noted that the closure device of the invention does not contain an insert of any other 2S material in its body.
The particularly preferred polymeric material of the closure device of this invention is expanded polystyrene. Expanded polystyrene is well known for its very low density and it is extensively employed, for example, in packaging applications in which the expanded polystyrene used may typically have a density of 0.016 g/cc. It is important to note, however, that an essential novel feature of the present invention is that the polymeric material used has a density of at least 0.03 g/cc so that it is more comparable in CA 022l908~ l997-l0-23 density to cork which typically has a density of around 0.1 g/cc although varying depending its source.
Also the increased density of the material renders it more impermeable to gases and liquids. Thus, the process conditions used for the production of moulded expanded polystyrene closure devices of the present invention are controlled, in known conventional manner, to produce a final density of at least 0.03 g/ cc .
Although the preferred shape of the body of closure device in accord with the invention is substantially cylindrical it may for example be of other shapes having a circular cross-section, for example frustoconical. Also, the closure device may have an enlarged end, that is an end which has a larger diameter than the body of the closure device, similar to that of the types of cork which are used for sealing wines of the "Champagne" type in which the enlarged end serves to provide an anchorage for a wire fastening attached to the neck of the bottle to secure the closure device against being forced out of the mouth of the bottle by the internal pressure of the gas in the bottle.
The closure device of the invention is inserted into the opening of a container to prevent the material held in the container escaping through the container's opening when the closure is in place. It also prevents outside contaminants such as gases, moisture, bacteria or fungi from entering the container through the opening. Through achieving an air-tight seal, it maintains the material stored in the container in as near perfect a condition as possible.
The polymeric material of the closure is desirably coloured to look like the natural material CA 0221908~ 1997-10-23 that it replaces and is also desirably surface-textured or otherwise physically surface-treated with the same end in view. It can also be painted and/or be printed with information on its surface if required.
The closure may be pressure treated in its manufacture for example by rolling. It was originally thought that this pressure treatment increased both the elasticity and the density of only a surface layer of the material. However it is now believed that the pressure treatment increases the elasticity and density of the whole body of the closure but that there is no significant resulting change in the uniformity of its density. This pressure treatment enhances the closure's ability to press against the walls of the container opening and thereby to seal it.
The closure may also be coated with a flexible impervious coating such as polyurethane if an additional degree of impermeability is required. The closure may also be waxed. Additionally, any coating composition used may contain colour so as to render the closure device of similar colour to that of natural cork.
A specific embodiment of the invention will now be described by way of example with reference to the accompanying drawing in which:
Figure 1 shows a perspective of the closure device, in this case acting as a substitute for a cork in a wine bottle.
Figure 2 shows the closure device in place in a wine bottle.
Referring to the drawings, the closure device comprises a cylinder of expanded polystyrene 1 of substantially uniform density greater than 0.03 g/cc.
At such higher densities, the expanded polystyrene CA 0221908~ 1997-10-23 exhibits a greatly reduced permeability to gases and water vapour, and to other fluids. Expanded polystyrene is resistant to alcohol and is an approved material for contact with foodstuffs. It is biologically inert and acts as a barrier to the ingress of bacteria and moulds. Also, as mentioned above, at higher densities such as above 0.03 g/cc it also compares favourably to cork in density and also has a microstructure of similar appearance to that of cork. The texture of its external surface 2 is already very cork-like and this is desirably enhanced by colouring and/or by physically treating the surface, for example by shaving, sanding or texturing.
The frictional properties between high density expanded polystyrene and glass compare favourably to those between cork and glass. It should be noted however that cork relies to some extent on absorption of liquid from the contents of the container in order to achieve its effectiveness in sealing whereas the closure device of the present invention does not absorb liquids to any significant degree.
As is well known in the art, expanded polystyrene is conventionally produced by a bead process using a suspension polymerisation technique. A blowing agent such as for example about 6~ of a low boiling petroleum ether fraction, e.g. n-pentane, is either incorporated before polymerisation, or after polymerisation the beads are impregnated under heat and pressure. The beads are then processed by steam moulding. The beads are first pre-foamed by heating in a steam bath. This causes the beads to expand and the expansion is continued until they reach an appropriate level in the mould corresponding to the desired density. This may be determined by a suitably positioned thermocouple which is arranged to cause the CA 0221908~ 1997-10-23 steam to be switched off when this point is reached.
The expanded beads are then allowed to stand for 24 hours to allow them to cool to room temperature and to allow air to diffuse into the cells so that the cells equilibrate with outside conditions.
Then a steam moulding process is performed. The beads are charged into a mould which is provided with perforated walls to admit steam. The mould is completely filled with the beads. Steam is then passed into the mould causing the beads to swell further and to weld with each other and take up the shape of the mould.
When the bodies of the closure devices are to be substantially cylindrical the mould itself may be in the form of a plurality of cylinders which may be interlinked each of which cylinders may be several times the length of the closure devices to be produced.
When moulding is complete the mouldings are taken out of the moulds, trimmed, cut to length, printed, textured, coated and waxed with paraffin wax, as appropriate.
It should be understood of course that the above-mentioned specific procedure can be varied in many respects without departing from the scope of the invention as hereinafter claimed.
The resulting closure devices can be inserted directly into a container such as a bottle at this stage if the mouldings are of sufficiently small diameter. However, for greater pull strengths larger t diameter mouldings are used which are reduced in size by compression, e.g. by rolling, before being put into a conventional cork inserter.
It should be mentioned that because expanded polystyrene does not have the same elasticity as cork = ~
CA 0221908~ 1997-10-23 it is usually necessary to adjust conventional cork inserters from a usual diameter of 16 mm for a conventional cork closure to a diameter of say 18 mm for the closure device of the present invention, to allow for this di~ference in elasticity and corresponding expansion.
As mentioned above, the closure device may be pressure treated, for example by rolling, to improve the elasticity of the polystyrene. The closure device is compressed as it is pushed into a bottle 3 and provides a seal against the glass. On withdrawal the elasticity of the closure device creates a good simulation of the sensation of a real cork being removed from a bottle and allows the closure device to be reinserted if required. The closure device retains rigidity thus providing mechanical strength to prevent the closure device from distorting through bending when it is pushed into a bottle 4 and to provide purchase for extraction devices. The high density expanded polystyrene is practically impervious to gases and fluid of the nature likely to be encountered in wine. Additional protection can be given by treating the ends and/or sides with a colourless impermeable coating such as polyurethane 5.
As explained above, therefore, the closure device of the invention thus consists essentially solely of an expanded closed-cell polymer, preferably expanded polystyrene, which has a substantially constant density of greater than 0.03 g/cc throughout, and which can be partially or wholly surface coated with an impermeable sealing material for example with polyurethane and/or a wax to prevent moisture and gaseous movement through and around the closure device.
This invention relates to a closure device for containers.
Closure devices for containers are commonly made of natural materials such as cork. These are used for temporarily sealing containers in order to prevent spillage and to preserve the contents of the container. They have a traditional appeal and are effective. Very large quantities are used in wine bottling and they are also used for other foodstuffs and for other substances such as cosmetics. However, they have the disadvantage of being relatively expensive, are labour intensive to produce, are subject to quality variations and can introduce microorganisms and other impurities to the stored substance. These disadvantages have been recognised for some time and synthetic substitutes have been developed using synthetic rubbers and plastics.
These, however, have the disadvantages of being more expensive than natural materials, of not being readily reusable, of not looking and feeling like natural materials and of behaving differently to the natural materials. Consumers notice these differences and are put off, thus reducing the acceptability of these substitutes in the marketplace. There is thus a need for a synthetic closure which looks, feels and behaves similarly to the natural material but with advantages of low cost, consistent quality, and of being sterile.
In EP-A-0 496 194 there is described and claimed a sealing closure for containers of liquids ; characterised in that it comprises a substantially cylindrical plastic element, which may be made of foamed polystyrene, in which an also substantially cylindrical elastic insert, which may be of cork, is CA 0221908~ 1997-10-23 axially ~r~h~ e~. However, such a design of closure appears potentially to have serious drawbacks from the point of view of lack of sterility due to the presence of the natural cork; from the point of view of structural integrity; and from the point of view of inadequate elastic behaviour. Also, although it is stated in the description of the patent specification that the production cost will be low, the complex structure of the product would indicate the contrary.
There is therefore still a demand for a satisfactory alternative to cork closures for containers, and particularly for liquid containers such as wine bottles.
According to the present invention there is provided a closure device for a container comprising a body of circular cross-section which is preferably cylindrical and which is adapted to fit in an opening in the container to seal said container said body consisting essentially of moulded foamed closed-cell polymer or copolymer preferably expanded polystyrene, having a substantially uniform density of at least 0.03 g/cc.
It should be noted that the closure device of the invention does not contain an insert of any other 2S material in its body.
The particularly preferred polymeric material of the closure device of this invention is expanded polystyrene. Expanded polystyrene is well known for its very low density and it is extensively employed, for example, in packaging applications in which the expanded polystyrene used may typically have a density of 0.016 g/cc. It is important to note, however, that an essential novel feature of the present invention is that the polymeric material used has a density of at least 0.03 g/cc so that it is more comparable in CA 022l908~ l997-l0-23 density to cork which typically has a density of around 0.1 g/cc although varying depending its source.
Also the increased density of the material renders it more impermeable to gases and liquids. Thus, the process conditions used for the production of moulded expanded polystyrene closure devices of the present invention are controlled, in known conventional manner, to produce a final density of at least 0.03 g/ cc .
Although the preferred shape of the body of closure device in accord with the invention is substantially cylindrical it may for example be of other shapes having a circular cross-section, for example frustoconical. Also, the closure device may have an enlarged end, that is an end which has a larger diameter than the body of the closure device, similar to that of the types of cork which are used for sealing wines of the "Champagne" type in which the enlarged end serves to provide an anchorage for a wire fastening attached to the neck of the bottle to secure the closure device against being forced out of the mouth of the bottle by the internal pressure of the gas in the bottle.
The closure device of the invention is inserted into the opening of a container to prevent the material held in the container escaping through the container's opening when the closure is in place. It also prevents outside contaminants such as gases, moisture, bacteria or fungi from entering the container through the opening. Through achieving an air-tight seal, it maintains the material stored in the container in as near perfect a condition as possible.
The polymeric material of the closure is desirably coloured to look like the natural material CA 0221908~ 1997-10-23 that it replaces and is also desirably surface-textured or otherwise physically surface-treated with the same end in view. It can also be painted and/or be printed with information on its surface if required.
The closure may be pressure treated in its manufacture for example by rolling. It was originally thought that this pressure treatment increased both the elasticity and the density of only a surface layer of the material. However it is now believed that the pressure treatment increases the elasticity and density of the whole body of the closure but that there is no significant resulting change in the uniformity of its density. This pressure treatment enhances the closure's ability to press against the walls of the container opening and thereby to seal it.
The closure may also be coated with a flexible impervious coating such as polyurethane if an additional degree of impermeability is required. The closure may also be waxed. Additionally, any coating composition used may contain colour so as to render the closure device of similar colour to that of natural cork.
A specific embodiment of the invention will now be described by way of example with reference to the accompanying drawing in which:
Figure 1 shows a perspective of the closure device, in this case acting as a substitute for a cork in a wine bottle.
Figure 2 shows the closure device in place in a wine bottle.
Referring to the drawings, the closure device comprises a cylinder of expanded polystyrene 1 of substantially uniform density greater than 0.03 g/cc.
At such higher densities, the expanded polystyrene CA 0221908~ 1997-10-23 exhibits a greatly reduced permeability to gases and water vapour, and to other fluids. Expanded polystyrene is resistant to alcohol and is an approved material for contact with foodstuffs. It is biologically inert and acts as a barrier to the ingress of bacteria and moulds. Also, as mentioned above, at higher densities such as above 0.03 g/cc it also compares favourably to cork in density and also has a microstructure of similar appearance to that of cork. The texture of its external surface 2 is already very cork-like and this is desirably enhanced by colouring and/or by physically treating the surface, for example by shaving, sanding or texturing.
The frictional properties between high density expanded polystyrene and glass compare favourably to those between cork and glass. It should be noted however that cork relies to some extent on absorption of liquid from the contents of the container in order to achieve its effectiveness in sealing whereas the closure device of the present invention does not absorb liquids to any significant degree.
As is well known in the art, expanded polystyrene is conventionally produced by a bead process using a suspension polymerisation technique. A blowing agent such as for example about 6~ of a low boiling petroleum ether fraction, e.g. n-pentane, is either incorporated before polymerisation, or after polymerisation the beads are impregnated under heat and pressure. The beads are then processed by steam moulding. The beads are first pre-foamed by heating in a steam bath. This causes the beads to expand and the expansion is continued until they reach an appropriate level in the mould corresponding to the desired density. This may be determined by a suitably positioned thermocouple which is arranged to cause the CA 0221908~ 1997-10-23 steam to be switched off when this point is reached.
The expanded beads are then allowed to stand for 24 hours to allow them to cool to room temperature and to allow air to diffuse into the cells so that the cells equilibrate with outside conditions.
Then a steam moulding process is performed. The beads are charged into a mould which is provided with perforated walls to admit steam. The mould is completely filled with the beads. Steam is then passed into the mould causing the beads to swell further and to weld with each other and take up the shape of the mould.
When the bodies of the closure devices are to be substantially cylindrical the mould itself may be in the form of a plurality of cylinders which may be interlinked each of which cylinders may be several times the length of the closure devices to be produced.
When moulding is complete the mouldings are taken out of the moulds, trimmed, cut to length, printed, textured, coated and waxed with paraffin wax, as appropriate.
It should be understood of course that the above-mentioned specific procedure can be varied in many respects without departing from the scope of the invention as hereinafter claimed.
The resulting closure devices can be inserted directly into a container such as a bottle at this stage if the mouldings are of sufficiently small diameter. However, for greater pull strengths larger t diameter mouldings are used which are reduced in size by compression, e.g. by rolling, before being put into a conventional cork inserter.
It should be mentioned that because expanded polystyrene does not have the same elasticity as cork = ~
CA 0221908~ 1997-10-23 it is usually necessary to adjust conventional cork inserters from a usual diameter of 16 mm for a conventional cork closure to a diameter of say 18 mm for the closure device of the present invention, to allow for this di~ference in elasticity and corresponding expansion.
As mentioned above, the closure device may be pressure treated, for example by rolling, to improve the elasticity of the polystyrene. The closure device is compressed as it is pushed into a bottle 3 and provides a seal against the glass. On withdrawal the elasticity of the closure device creates a good simulation of the sensation of a real cork being removed from a bottle and allows the closure device to be reinserted if required. The closure device retains rigidity thus providing mechanical strength to prevent the closure device from distorting through bending when it is pushed into a bottle 4 and to provide purchase for extraction devices. The high density expanded polystyrene is practically impervious to gases and fluid of the nature likely to be encountered in wine. Additional protection can be given by treating the ends and/or sides with a colourless impermeable coating such as polyurethane 5.
As explained above, therefore, the closure device of the invention thus consists essentially solely of an expanded closed-cell polymer, preferably expanded polystyrene, which has a substantially constant density of greater than 0.03 g/cc throughout, and which can be partially or wholly surface coated with an impermeable sealing material for example with polyurethane and/or a wax to prevent moisture and gaseous movement through and around the closure device.
Claims (10)
1. A closure device for a container comprising a body of circular cross-section which is adapted to fit in an opening in the container to seal said container said body consisting essentially of a moulded foamed closed-cell polymer which is expanded polystyrene having a substantially uniform density of at least 0.03 g/cc.
2. A closure device as claimed in claim 1 wherein said body is substantially cylindrical.
3. A closure device as claimed in claim 1 or claim 2 wherein the expanded polystyrene is coloured so as to render the closure device of similar colour to that of natural cork.
4. A closure device as claimed in claim 1 or claim 2 having a surface which is partially or wholly coated with a sealing material, for example a polyurethane resin and/or with wax, which may contain colour so as to render the closure device of similar colour to that of natural cork.
5. A closure device as claimed in any one of the preceding claims whose surface has been physically treated, for example by shaving, sanding or texturing, to bring its appearance closer to that of natural cork.
6. A closure device as claimed in any one of the preceding claims which is painted and/or has printed matter on its surface.
7. A closure device as claimed in any one of the preceding claims which is for use in wine bottles.
8. A method of making a closure device for a container which method comprises steam moulding expanded polystyrene beads in one or more cylindrical moulds having a diameter substantially corresponding to the diameter of the closure devices to be produced, the steam moulding process being performed under conditions such that a density of at least 0.03 g/cc is uniformly produced in the mouldings, the mouldings being thereafter removed from the moulds and then, if necessary, the mouldings are trimmed and cut to the desired length of the closure device, and, if desired, the mouldings are partially or wholly coated with a sealing material, for example a polyurethane resin, and/or with wax either before or after the optional cutting to size.
9. A method as claimed in claim 9 wherein the mouldings are subjected to compression by rolling under pressure in order to reduce their diameter.
10. A container, either empty or when containing a liquid or a solid, whenever comprising a closure device as claimed in any one of claims 1 to 7 or when made by the method claimed in claim 8 or claim 9.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9508972.8 | 1995-05-03 | ||
| GBGB9508972.8A GB9508972D0 (en) | 1995-05-03 | 1995-05-03 | Synthetic closure device for containers |
| GB9607815.9 | 1996-01-10 | ||
| GBGB9607815.9A GB9607815D0 (en) | 1995-05-03 | 1996-01-10 | Synthetic closure device for containers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2219085A1 true CA2219085A1 (en) | 1996-11-07 |
Family
ID=26306973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002219085A Abandoned CA2219085A1 (en) | 1995-05-03 | 1996-05-03 | Closure device for containers |
Country Status (15)
| Country | Link |
|---|---|
| EP (1) | EP0824465B1 (en) |
| JP (1) | JPH11505494A (en) |
| CN (1) | CN1071252C (en) |
| AT (1) | ATE182546T1 (en) |
| AU (1) | AU697116B2 (en) |
| BG (1) | BG63718B1 (en) |
| BR (1) | BR9608212A (en) |
| CA (1) | CA2219085A1 (en) |
| DE (1) | DE69603474T2 (en) |
| ES (1) | ES2135225T3 (en) |
| GB (1) | GB9607815D0 (en) |
| GR (1) | GR3031300T3 (en) |
| NZ (1) | NZ306517A (en) |
| RU (1) | RU2175937C2 (en) |
| WO (1) | WO1996034806A1 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT406476B (en) * | 1999-01-25 | 2000-05-25 | P1 Handels Gmbh | PLUGS FROM FOAMED THERMOPLASTIC PLASTIC |
| GB9904784D0 (en) * | 1999-03-02 | 1999-04-28 | Betacorque Limited | Closure device for containers |
| BG63773B1 (en) * | 1999-07-29 | 2002-12-29 | "Кортек" Оод | Method and machine for printing multicolour patterns on non-calibrated cylindrical surfaces and cork stopper made according to the method |
| ES2344553T3 (en) | 2002-03-06 | 2010-08-31 | Bacchus Technologies Limited | PLUGS |
| CN203874415U (en) * | 2012-11-30 | 2014-10-15 | 戴见霖 | Artificial material particle for manufacturing badminton ball heads and bottle stoppers, and badminton ball head and bottle stopper |
| CN107098052B (en) * | 2017-06-06 | 2018-08-21 | 南通白蒲黄酒有限公司 | A kind of yellow rice wine hermetically sealed can |
| CN110406788A (en) * | 2018-04-28 | 2019-11-05 | 吴小娜 | A kind of Wine bottle stopper of cork wood production |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2284534A1 (en) * | 1974-09-12 | 1976-04-09 | Bouchage Mecanique | IMPROVEMENTS FOR SHUTTERS FOR MOUTH CONTAINERS |
| US4091136A (en) * | 1976-05-17 | 1978-05-23 | Shaw Plastics Corporation | Synthetic cork-like material and method of making same |
| US4668557A (en) * | 1986-07-18 | 1987-05-26 | The University Of Iowa Research Foundation | Polyhedron cell structure and method of making same |
| IT1247147B (en) * | 1991-01-09 | 1994-12-12 | Lino Fantin | SEALING CAP FOR LIQUID CONTAINERS |
| US5496862A (en) * | 1993-05-05 | 1996-03-05 | Supreme Corq | Molded styrene block copolymer closure for a wine container |
-
1996
- 1996-01-10 GB GBGB9607815.9A patent/GB9607815D0/en active Pending
- 1996-05-03 AT AT96912151T patent/ATE182546T1/en not_active IP Right Cessation
- 1996-05-03 ES ES96912151T patent/ES2135225T3/en not_active Expired - Lifetime
- 1996-05-03 CN CN96193667A patent/CN1071252C/en not_active Expired - Fee Related
- 1996-05-03 JP JP8533127A patent/JPH11505494A/en active Pending
- 1996-05-03 CA CA002219085A patent/CA2219085A1/en not_active Abandoned
- 1996-05-03 RU RU97118336/13A patent/RU2175937C2/en active
- 1996-05-03 WO PCT/GB1996/001065 patent/WO1996034806A1/en active IP Right Grant
- 1996-05-03 EP EP96912151A patent/EP0824465B1/en not_active Expired - Lifetime
- 1996-05-03 AU AU55091/96A patent/AU697116B2/en not_active Ceased
- 1996-05-03 NZ NZ306517A patent/NZ306517A/en unknown
- 1996-05-03 BR BR9608212-7A patent/BR9608212A/en not_active Application Discontinuation
- 1996-05-03 DE DE69603474T patent/DE69603474T2/en not_active Expired - Fee Related
-
1997
- 1997-10-24 BG BG101991A patent/BG63718B1/en unknown
-
1999
- 1999-09-22 GR GR990402399T patent/GR3031300T3/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CN1183085A (en) | 1998-05-27 |
| AU5509196A (en) | 1996-11-21 |
| DE69603474D1 (en) | 1999-09-02 |
| RU2175937C2 (en) | 2001-11-20 |
| EP0824465A1 (en) | 1998-02-25 |
| BR9608212A (en) | 1999-12-07 |
| NZ306517A (en) | 1998-07-28 |
| ATE182546T1 (en) | 1999-08-15 |
| CN1071252C (en) | 2001-09-19 |
| DE69603474T2 (en) | 1999-11-25 |
| GR3031300T3 (en) | 1999-12-31 |
| BG101991A (en) | 1999-01-29 |
| BG63718B1 (en) | 2002-10-31 |
| EP0824465B1 (en) | 1999-07-28 |
| JPH11505494A (en) | 1999-05-21 |
| WO1996034806A1 (en) | 1996-11-07 |
| AU697116B2 (en) | 1998-09-24 |
| ES2135225T3 (en) | 1999-10-16 |
| GB9607815D0 (en) | 1996-06-19 |
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