GB2290131A - Cryogenic self-cooling beverage can - Google Patents
Cryogenic self-cooling beverage can Download PDFInfo
- Publication number
- GB2290131A GB2290131A GB9411718A GB9411718A GB2290131A GB 2290131 A GB2290131 A GB 2290131A GB 9411718 A GB9411718 A GB 9411718A GB 9411718 A GB9411718 A GB 9411718A GB 2290131 A GB2290131 A GB 2290131A
- Authority
- GB
- United Kingdom
- Prior art keywords
- beverage
- cooling
- carbon dioxide
- released
- gas
- 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- Withdrawn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
- 235000013361 beverage Nutrition 0.000 title claims abstract description 26
- 238000001816 cooling Methods 0.000 title claims abstract description 12
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 26
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 13
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 13
- 239000000796 flavoring agent Substances 0.000 claims description 4
- 235000019634 flavors Nutrition 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 2
- 230000035622 drinking Effects 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 2
- 235000013405 beer Nutrition 0.000 abstract 1
- 235000014171 carbonated beverage Nutrition 0.000 abstract 1
- 238000001704 evaporation Methods 0.000 abstract 1
- 230000008020 evaporation Effects 0.000 abstract 1
- 235000015203 fruit juice Nutrition 0.000 abstract 1
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract 1
- 239000011707 mineral Substances 0.000 abstract 1
- 235000014214 soft drink Nutrition 0.000 abstract 1
- 239000004133 Sodium thiosulphate Substances 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000010926 purge Methods 0.000 description 2
- AKHNMLFCWUSKQB-UHFFFAOYSA-L sodium thiosulfate Chemical group [Na+].[Na+].[O-]S([O-])(=O)=S AKHNMLFCWUSKQB-UHFFFAOYSA-L 0.000 description 2
- 235000019345 sodium thiosulphate Nutrition 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D3/00—Devices using other cold materials; Devices using cold-storage bodies
- F25D3/10—Devices using other cold materials; Devices using cold-storage bodies using liquefied gases, e.g. liquid air
- F25D3/107—Devices using other cold materials; Devices using cold-storage bodies using liquefied gases, e.g. liquid air portable, i.e. adapted to be carried personally
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Non-Alcoholic Beverages (AREA)
Abstract
Compressed or liquified carbon dioxide gas is used to cool a canned beverage by its evaporation. The gas is released automatically upon broaching, or may be released just prior to opening the can in order to drink the contents. The cryogenic gas may be stored in the wall of a doubleskinned beverage can, or in a separate chamber within the can. The cryogenic gas is arranged to vent directly to the atmosphere, or across the surface of the beverage. It does not vent through the beverage and thereby avoids difficulties of other, similar, in-can coolers. The invention has applications for the cooling of all carbonated beverages, for example, soft drinks, mineral water and beers. It may also be used to cool uncarbonated beverages, for example fruit juice.
Description
CRYOGENIC, SELF-COOLING BEVERAGE CAN
DESCRIPTION
This invention relates to SELF-COOLING BEVERAGE CANS.
This invention describes a cryogenic in-can device which enables the contents to be cooled automatically upon opening (broaching) of the can. Attempts have been made in the past to achieve this. These include the mixing of two substances to initiate an endothermic reaction.
An example is sodium thiosulphate and water. Another device allows compressed carbon dioxide gas to be released from an insert at the base of the can.
The use of chemicals is undesirable where foods are concerned. Also, the thermal capacity of simple endothermic reactions, for example the solubilisation of 'hypo' (sodium thiosulphate) is limited and the rate of heat absorbtion slow.
The in-can compressed carbon dioxide container suffers from the purging effect of the gas on the drink. The carbon dioxide released causes volatile flavour and aroma compounds to be washed out of the beverage, together with some of the carbonic acid present in the drink. The result is a beverage which, although cooled, has reduced flavour, aroma and carbonation levels compared to the same beverage which has not been subjected to rapid cooling in this way.
According to the present invention, the cryogenic effect of allowing compressed carbon dioxide gas to expand, or liquid carbon dioxide to volatilise, is exploited without any effects on the beverage, other than to reduce its temperature.
A specific embodiment of the invention is to use a double-walled beverage can. The outer chamber contains compressed carbon dioxide gas, or liquid carbon dioxide (as distinct from that used to carbonate the beverage). This is allowed to escape through a small orifice in the wall dividing the outer chamber of the can from the inner chamber. This is arranged to be above the surface of the beverage when the can is placed upright on an horizontal surface. The cryogenic carbon dioxide therefore escapes without purging the beverage of its flavour, aroma or carbonation.
A further benefit of the invention is that the double-walled can provides an insulative container for the contents. The thermal barrier is provided by the carbon dioxide remaining in the outer chamber after the can has undergone self-cooling. This 'dead' space provides an excellent thermal barrier.
A further specific embodiment is the use of a chamber compressed carbon dioxide gas which is attached to the inner wall of a conventional beverage can. The contents of this chamber are released upon broaching the can and escape into the headspace without passage through the beverage. In this embodiment the device confers no particular insulative properties to the can.
However, all, or almost all, of the surface of the chamber available for cooling the contents in this embodiment.
In both these specific embodiments, the compressed gas may be released by a mechanical movement separate to that required to make the beverage available to drinking. Also, the gas may be released directly to the atmosphere without passing over or through the beverage.
Claims (5)
- What we claim to do is: 1 The invention allows rapid (30 seconds or less) cooling of a beverage in a metal can.
- 2 The cooling action does not affect the aroma or flavour compounds present in the beverage, nor does it affect the level of carbonation of the beverage.
- 3 In one embodiment of the invention, that of a double-walled can, the can has enhanced insulative properties, by virtue of its double wall.
- 4 In all embodiments the compressed carbon dioxide gas may be released directly to the outside of the can without passage over or through the beverage. In this case the cooling action can be activated before the beverage is released for drinking.
- 5 The invention allows the degree of cooling to be varied to suit different climates and beverages. The cooling effect can be made to achieve a 10 celsius reduction in the temperature of the beverage, or a 25 celsius reduction, depending on the amount of cryogenic carbon dioxide used.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9411718A GB2290131A (en) | 1994-06-10 | 1994-06-10 | Cryogenic self-cooling beverage can |
| GBGB9511779.2A GB9511779D0 (en) | 1994-06-10 | 1995-06-09 | Cyrogenic, self-cooling beverage containers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9411718A GB2290131A (en) | 1994-06-10 | 1994-06-10 | Cryogenic self-cooling beverage can |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB9411718D0 GB9411718D0 (en) | 1994-08-03 |
| GB2290131A true GB2290131A (en) | 1995-12-13 |
Family
ID=10756573
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9411718A Withdrawn GB2290131A (en) | 1994-06-10 | 1994-06-10 | Cryogenic self-cooling beverage can |
| GBGB9511779.2A Pending GB9511779D0 (en) | 1994-06-10 | 1995-06-09 | Cyrogenic, self-cooling beverage containers |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GBGB9511779.2A Pending GB9511779D0 (en) | 1994-06-10 | 1995-06-09 | Cyrogenic, self-cooling beverage containers |
Country Status (1)
| Country | Link |
|---|---|
| GB (2) | GB2290131A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1286973A (en) * | 1968-08-30 | 1972-08-31 | Nathan Rosenfeld | Self-cooling containers |
| US3987643A (en) * | 1974-01-21 | 1976-10-26 | Willis Samuel C | Thermodynamic beverage cooling unit |
| GB1465607A (en) * | 1973-04-06 | 1977-02-23 | Beck W D | Self-chilling container with safety device and method of making same |
| US4319464A (en) * | 1980-07-25 | 1982-03-16 | Dodd N Ray | Refrigerated container |
| WO1987002123A1 (en) * | 1985-10-03 | 1987-04-09 | Superior Marketing Research Corp. | Self-contained cooling device for food containers |
| EP0279971A1 (en) * | 1987-02-27 | 1988-08-31 | Huang, Kin-Shen | Beverage can cooling device |
| US5201193A (en) * | 1992-02-19 | 1993-04-13 | Sundhar Shaam P | Cooling device for beverages |
-
1994
- 1994-06-10 GB GB9411718A patent/GB2290131A/en not_active Withdrawn
-
1995
- 1995-06-09 GB GBGB9511779.2A patent/GB9511779D0/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1286973A (en) * | 1968-08-30 | 1972-08-31 | Nathan Rosenfeld | Self-cooling containers |
| GB1465607A (en) * | 1973-04-06 | 1977-02-23 | Beck W D | Self-chilling container with safety device and method of making same |
| US3987643A (en) * | 1974-01-21 | 1976-10-26 | Willis Samuel C | Thermodynamic beverage cooling unit |
| US4319464A (en) * | 1980-07-25 | 1982-03-16 | Dodd N Ray | Refrigerated container |
| WO1987002123A1 (en) * | 1985-10-03 | 1987-04-09 | Superior Marketing Research Corp. | Self-contained cooling device for food containers |
| EP0279971A1 (en) * | 1987-02-27 | 1988-08-31 | Huang, Kin-Shen | Beverage can cooling device |
| US5201193A (en) * | 1992-02-19 | 1993-04-13 | Sundhar Shaam P | Cooling device for beverages |
Also Published As
| Publication number | Publication date |
|---|---|
| GB9511779D0 (en) | 1995-08-02 |
| GB9411718D0 (en) | 1994-08-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |