WO1988007972A1 - Drink coolers - Google Patents

Drink coolers Download PDF

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Publication number
WO1988007972A1
WO1988007972A1 PCT/GB1988/000273 GB8800273W WO8807972A1 WO 1988007972 A1 WO1988007972 A1 WO 1988007972A1 GB 8800273 W GB8800273 W GB 8800273W WO 8807972 A1 WO8807972 A1 WO 8807972A1
Authority
WO
WIPO (PCT)
Prior art keywords
coolant
product
drink
line
tank
Prior art date
Application number
PCT/GB1988/000273
Other languages
French (fr)
Inventor
Neil Eric Paxman
Original Assignee
Paxman Bristow Coolers Limited
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Paxman Bristow Coolers Limited filed Critical Paxman Bristow Coolers Limited
Publication of WO1988007972A1 publication Critical patent/WO1988007972A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D1/00—Apparatus or devices for dispensing beverages on draught
    • B67D1/08—Details
    • B67D1/0857—Cooling arrangements
    • B67D1/0858—Cooling arrangements using compression systems
    • B67D1/0861—Cooling arrangements using compression systems the evaporator acting through an intermediate heat transfer means
    • B67D1/0865—Cooling arrangements using compression systems the evaporator acting through an intermediate heat transfer means by circulating a cooling fluid along beverage supply lines, e.g. pythons
    • B67D1/0867—Cooling arrangements using compression systems the evaporator acting through an intermediate heat transfer means by circulating a cooling fluid along beverage supply lines, e.g. pythons the cooling fluid being a liquid
    • 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
    • F25D31/00—Other cooling or freezing apparatus
    • F25D31/002—Liquid coolers, e.g. beverage cooler
    • F25D31/003—Liquid coolers, e.g. beverage cooler with immersed cooling element
    • 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
    • F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
    • F25D2400/28—Quick cooling

Definitions

  • This invention relates to drink coolers, and is concerned particularly although not exclusively with beer coolers.
  • beer coolers are known. Generally, they may comprise a "product tank” having a coil through which beer passes, and which is immersed in coolant (usually chilled water) which is fed through the tank.
  • coolant usually chilled water
  • a problem that arises with known beer coolers of this type is to maintain the beer at a cold temperature up to the point of dispense.
  • the beer it is customary for the beer to pass from the product tank to a dispensing tap via a "product line", which is typically a length of pipe.
  • the product line may have some degree of insulation but, nevertheless, it is not uncommon for the temperature of the beer in the pipe to reach a higher temperature than is desirable, especially between extended periods of dispense, and this can give rise to "fobbing", which is the phenomenon of excess foaming (due to carbination) of beers such as lagers, stouts, etc.
  • Preferred embodiments of the present invention aim to provide beer coolers which may be improved in this respect.
  • a drink cooler comprising:
  • a product tank having a first circuit for the circulation of a drink therethrough and a second circuit for the circulation of a coolant therethrough, so as to achieve heat-exchange between the drink and the coolant;
  • a coolant line for carrying coolant from the product tank and passing the coolant alongside the product line so as to achieve heat-exchange between the drink in the product line and the coolant in the coolant line;
  • the illustrated beer cooler 1 comprises a coolant tank 2 and two products tanks 3, which are substantially identical, and are disposed symmetrically at either side of the coolant tank 2.
  • a layer of thermal insulation 4 is disposed between the coolant tank 2 and each of the products tanks 3.
  • the product tank 2 contains a refrigerant coil 5, through which a refrigerant is passed in known manner, through an evaporator, pump and compressor unit, generally designated at 6. It is to be appreciated that all of the major components 2, 3, 6 are preferably mounted on a single base 7.
  • the coolant tank 3 contains a coolant (typically water) which is circulated through the tank 3, in contact with the refrigerant coil 5.
  • a coolant typically water
  • Two coolant outlets 8 are disposed at opposite sides of the coolant tank 3, and lead each to a respective high capacity pump 9.
  • a pair of coolant inlets 10 lead each to a respective vertical inlet tube, each of which is formed with a vertical series of holes from top to bottom, to direct coolant flow towards the adjacent walls of the coolant tank 3, as indicated in the figure by arrows.
  • the coolant tank 3 is provided with a pair of secondary coolant inlets 12, each disposed adjacent a respective one of the inlet tubes 11.
  • a thermostat 13 is placed within the coolant tank 2, within the path of circulating coolant flow, and detects the temperature of the circulating coolant.
  • the compressor unit 6 responds to the output of the thermostat 13, to effect cooling via the refrigerant coil 5, when the temperature of the circulating coolant within the tank 3 falls between a predetermined temperature.
  • Each of the product tanks 2 contains a product coil 14 having an inlet 15 and an outlet 16.
  • a thermostat coil 17 is disposed around each product outlet 16.
  • Each product tank 2 has a coolant inlet 18, a first coolant outlet 19, and a second coolant outlet 20. In use, coolant from the coolant tank 3 is circulated under pressure through each product tank 2 by means of the respective high capacity pump 9, and exhausted through the coolant outlets 19 and 20.
  • a combined product/coolant pipe 21 is provided for each product tank 2.
  • This pipe comprises concentric inner (product) and outer (coolant) pipes 23 and 24.
  • the product pipe 23 is connected to a product outlet 16 on a respective product tank 2 and leads to a dispensing tap 22.
  • the coolant pipe 24 is connected to the coolant outlet of that coolant tank 3. (Only one combined product/coolant pipe arrangement 21 is shown in the figure for convenience).
  • the outer pipe 24 is connected to a coolant return line 25, which is connected to either one of the secondary coolant inlets 12 of the coolant tank 2.
  • the illustrated beer cooler 1 operates generally as follows.
  • a bulk container of beer e.g. lager, beer or stout under pressure
  • a bulk container of beer e.g. lager, beer or stout under pressure
  • the respective thermostat coil 17 detects whether the temperature of the beer at the product outlets 16 is sufficiently low. If the temperature is above a predetermined level, then the thermostat circuit causes the high capacity pump 9 to cut in, and this forces coolant through the product tank 2, where it undergoes heat-exchange with the product in the product coil 14, to cool the beer to the desired temperature.
  • the coolant in the coolant tank 3 is maintained at its desired temperature, by means of the circuit which responds to the thermostat probe 13.
  • the coolant tank 3 may contain a reservoir of ice built up within the refrigerant coil 5.
  • the refrigerating capacity of the refrigerant circuit may be sufficiently great as to be capable of cooling the coolant water in the tank 3 to the desired low temperature, whatever the heat exchange demands of the two product tanks 2.
  • Each of the coolant outlets 8 from the coolant tank 3 is of relatively large diameter and, preferably, each is provided with a U bend or non-return valve, to prevent unforced circulation of the coolant, when the pumps 9 are not activated.
  • the coolant outlets 19 and 20 from the product tanks 2 are of smaller diameter than the coolant outlet 8 from the coolant tank 3, so as to maintain the coolant in the product tanks 2 under pressure. It will be appreciated that, in addition to circulating the coolant through the product tanks 2 and directly back into the coolant tank 3 via the coolant outlets 19, a further flow of coolant is caused through the outer tube 23 of each product line 21, and back again through the respective return line 25.
  • the cross-sectional area of the return line 25 is smaller than that of the outer pipe 23, so as to maintain the coolant under pressure.
  • the illustrated beer cooler may be improved over known beer coolers in a number of ways. Firstly, the provision of the secondary coolant flow within the product line 21 may ensure that the beer is kept at a satisfactorily low temperature, virtually all of the way to the dispensing tap 22, irrespective of the intervals between dispensing operations. Secondly, the positioning of the thermostat coil 17 at the product outlet 16 ensures that the high capacity pump 9 cuts in only when the product temperature rises. (If desired, alternative or additional thermostat coils may be provided further along the product line 21. As another alternative, the thermostat coil 17 may be disposed at the product inlet 15). It is to be noted that, as shown in the diagram, the thermostat coil 17 is partly within and partly outside the respect product tank 2.
  • a further advantage of the system is that two product tanks 2 may be conveniently located either side of a common coolant tank 3, with thermal insulation 4 therebetween, to minimize unwanted heat transfer.
  • the product line 21 is provided with push on pipe connectors, for easy connection of the product line 21 to the product outlet 16, coolant outlet 20 and coolant inlet 12.
  • suitable thermal insulation is provided around the coolant pipes 23, 25.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Devices For Dispensing Beverages (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Abstract

A drink cooler (1) has a coolant tank (3) and product tank (2) which carries drink. The coolant tank (3) feeds coolant through the product tank (2) in order to cool the drink. A combined product/coolant pipe (21) comprises a central pipe (23) which communicates with the product tank, and a coolant line (24) which communicates with the coolant tank (2). Drink within the product/coolant pipe (21) is maintained at a desired temperature due to heat exchange between the drink and the coolant. The cooled drink is dispensed through a tap (22). By keeping the drink cool to the point of dispense, fobbing may be minimized and the drink may be served cooler and quicker than with known apparatus.

Description

DRINK COOLERS
This invention relates to drink coolers, and is concerned particularly although not exclusively with beer coolers.
Many beer coolers are known. Generally, they may comprise a "product tank" having a coil through which beer passes, and which is immersed in coolant (usually chilled water) which is fed through the tank.
A problem that arises with known beer coolers of this type is to maintain the beer at a cold temperature up to the point of dispense. In this respect, it is customary for the beer to pass from the product tank to a dispensing tap via a "product line", which is typically a length of pipe. The product line may have some degree of insulation but, nevertheless, it is not uncommon for the temperature of the beer in the pipe to reach a higher temperature than is desirable, especially between extended periods of dispense, and this can give rise to "fobbing", which is the phenomenon of excess foaming (due to carbination) of beers such as lagers, stouts, etc.
Preferred embodiments of the present invention aim to provide beer coolers which may be improved in this respect.
According to one aspect of the present invention, there is provided a drink cooler comprising:
a product tank having a first circuit for the circulation of a drink therethrough and a second circuit for the circulation of a coolant therethrough, so as to achieve heat-exchange between the drink and the coolant;
a product line for carrying a drink from the product tank to a point of dispense;
a coolant line for carrying coolant from the product tank and passing the coolant alongside the product line so as to achieve heat-exchange between the drink in the product line and the coolant in the coolant line; and
means for passing the coolant under pressure through the coolant line.
In addition to the above, the invention has numerous different further aspects, and such aspects and various optional features will be apparent from the following description of an embodiment of the invention, which is given, purely by way of example, with reference to the accompanying diagrammatic drawing, the single figure of which is a schematic plan view of a beer cooler.
The illustrated beer cooler 1 comprises a coolant tank 2 and two products tanks 3, which are substantially identical, and are disposed symmetrically at either side of the coolant tank 2. A layer of thermal insulation 4 is disposed between the coolant tank 2 and each of the products tanks 3.
The product tank 2 contains a refrigerant coil 5, through which a refrigerant is passed in known manner, through an evaporator, pump and compressor unit, generally designated at 6. It is to be appreciated that all of the major components 2, 3, 6 are preferably mounted on a single base 7.
The coolant tank 3 contains a coolant (typically water) which is circulated through the tank 3, in contact with the refrigerant coil 5. Two coolant outlets 8 are disposed at opposite sides of the coolant tank 3, and lead each to a respective high capacity pump 9. A pair of coolant inlets 10 lead each to a respective vertical inlet tube, each of which is formed with a vertical series of holes from top to bottom, to direct coolant flow towards the adjacent walls of the coolant tank 3, as indicated in the figure by arrows. The coolant tank 3 is provided with a pair of secondary coolant inlets 12, each disposed adjacent a respective one of the inlet tubes 11. A thermostat 13 is placed within the coolant tank 2, within the path of circulating coolant flow, and detects the temperature of the circulating coolant. The compressor unit 6 responds to the output of the thermostat 13, to effect cooling via the refrigerant coil 5, when the temperature of the circulating coolant within the tank 3 falls between a predetermined temperature.
Each of the product tanks 2 contains a product coil 14 having an inlet 15 and an outlet 16. A thermostat coil 17 is disposed around each product outlet 16. Each product tank 2 has a coolant inlet 18, a first coolant outlet 19, and a second coolant outlet 20. In use, coolant from the coolant tank 3 is circulated under pressure through each product tank 2 by means of the respective high capacity pump 9, and exhausted through the coolant outlets 19 and 20.
A combined product/coolant pipe 21 is provided for each product tank 2. This pipe comprises concentric inner (product) and outer (coolant) pipes 23 and 24. The product pipe 23 is connected to a product outlet 16 on a respective product tank 2 and leads to a dispensing tap 22. The coolant pipe 24 is connected to the coolant outlet of that coolant tank 3. (Only one combined product/coolant pipe arrangement 21 is shown in the figure for convenience). At or adjacent the respective dispensing tap 22, the outer pipe 24 is connected to a coolant return line 25, which is connected to either one of the secondary coolant inlets 12 of the coolant tank 2.
The illustrated beer cooler 1 operates generally as follows.
Firstly, a bulk container of beer (e.g. lager, beer or stout under pressure) is connected to each of the product inlets 15 of the product tanks 2. For each product tank 2 individually, the respective thermostat coil 17 detects whether the temperature of the beer at the product outlets 16 is sufficiently low. If the temperature is above a predetermined level, then the thermostat circuit causes the high capacity pump 9 to cut in, and this forces coolant through the product tank 2, where it undergoes heat-exchange with the product in the product coil 14, to cool the beer to the desired temperature.
In turn, the coolant in the coolant tank 3 is maintained at its desired temperature, by means of the circuit which responds to the thermostat probe 13.
It will be appreciated that, as beer is dispensed via the tap 22, relatively warm beer 15 is drawn into the product coil 14, raising slightly the temperature at the thermostat coil 17, and causing the pump 9 to cut in, and keep the beer sufficiently cool. Typically, the coolant tank 3 may contain a reservoir of ice built up within the refrigerant coil 5. However, in an alternative arrangement, the refrigerating capacity of the refrigerant circuit may be sufficiently great as to be capable of cooling the coolant water in the tank 3 to the desired low temperature, whatever the heat exchange demands of the two product tanks 2.
Each of the coolant outlets 8 from the coolant tank 3 is of relatively large diameter and, preferably, each is provided with a U bend or non-return valve, to prevent unforced circulation of the coolant, when the pumps 9 are not activated.
The coolant outlets 19 and 20 from the product tanks 2 are of smaller diameter than the coolant outlet 8 from the coolant tank 3, so as to maintain the coolant in the product tanks 2 under pressure. It will be appreciated that, in addition to circulating the coolant through the product tanks 2 and directly back into the coolant tank 3 via the coolant outlets 19, a further flow of coolant is caused through the outer tube 23 of each product line 21, and back again through the respective return line 25. The cross-sectional area of the return line 25 is smaller than that of the outer pipe 23, so as to maintain the coolant under pressure.
Thus, the illustrated beer cooler may be improved over known beer coolers in a number of ways. Firstly, the provision of the secondary coolant flow within the product line 21 may ensure that the beer is kept at a satisfactorily low temperature, virtually all of the way to the dispensing tap 22, irrespective of the intervals between dispensing operations. Secondly, the positioning of the thermostat coil 17 at the product outlet 16 ensures that the high capacity pump 9 cuts in only when the product temperature rises. (If desired, alternative or additional thermostat coils may be provided further along the product line 21. As another alternative, the thermostat coil 17 may be disposed at the product inlet 15). It is to be noted that, as shown in the diagram, the thermostat coil 17 is partly within and partly outside the respect product tank 2.
A further advantage of the system is that two product tanks 2 may be conveniently located either side of a common coolant tank 3, with thermal insulation 4 therebetween, to minimize unwanted heat transfer.
A further advantage arises from the novel configuration of the product line 21, having the central product pipe 23 disposed concentrically within the outer coolant pipe 24.
It is particularly convenient to utilize the pressure generated within the product tanks 2 by the high capacity pumps 9 , to drive the coolant through the coolant pipes 23, 25.
Preferably, the product line 21 is provided with push on pipe connectors, for easy connection of the product line 21 to the product outlet 16, coolant outlet 20 and coolant inlet 12. Preferably, suitable thermal insulation is provided around the coolant pipes 23, 25.
Thus , by keeping the beer cool to the point of dispense, fobbing may be minimized (which can be a most valuable saving in lost product) , and the beer may be served cooler and more quickly . Indeed , for a given general s i z e of coolant tank/product tank , more dispensing taps may be utilized than in conventional beer coolers.
The contents of all papers and documents filed concurrently with this specification are incorporated herein by reference.
All of the features disclosed in this specification (including any accompanying claims, abstract and drawings), and/or all of the steps of any method or process so disclosed, may be combined in any combination, except combinations where at least some of such features and/or steps are mutually exclusive.
The invention is not restricted. to the details of the foregoing embodiment(s) . The invention extends to any novel one, or any novel combination, of the features disclosed in this specification (including any accompanying claims, abstract and drawings), or to any novel one, or any novel combination, of the steps of any method or process so disclosed.

Claims

1. A drink cooler comprising:
a product tank having a first circuit for the circulation of a drink therethrough and a second circuit for the circulation of a coolant therethrough, so as to achieve heat-exchange between the drink and the coolant;
a product line for carrying a drink from the product tank to a point of dispense;
a coolant line for carrying coolant from the product tank and passing the coolant alongside the product line so as to achieve heat-exchange between the drink in the product line and the coolant in the coolant line; and
means for passing the coolant under pressure through the coolant line.
2. A drink cooler according to Claim 1, wherein the product line and coolant line are pipes, and wherein the product line is disposed concentrically within the coolant line.
3. A drink cooler according to Claim 1 or Claim 2, wherein a pump is provided to cause the coolant to circulate through the product tank and to generate a pressure which is utilized in driving the coolant through the coolant line.
4, A drink cooler according to Claim 1 or Claim 2, -9-
wherein the coolant line for carrying coolant from the product tank is of greater cross-sectional area than a return line, in order to maintain the pressure of the coolant as it flows through the coolant line.
5. A drink cooler according to Claim 1 or Claim 2, wherein a thermostat is provided on the product line to detect the temperature of the drink and adapted, if the temperature is above a predetermined level, to cause the pump to cut-in.
6. A drink cooler according to Claim 1, or Claim 2, wherein two product tanks are located one at each side of a common coolant tank which is provided as a component of the second circuit, with thermal insulation between each product tank and the coolant tank.
7. A drink cooler according to Claim 1 or Claim 2, wherein the second coolant circuit comprises a coolant tank from which coolant is driven to the product tank through which the first circuit passes and a coolant line which includes an outlet from the product tank and a return line so disposed as to provide a continuous circuit.
PCT/GB1988/000273 1987-04-10 1988-04-08 Drink coolers WO1988007972A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8708686 1987-04-10
GB08708686A GB2204389A (en) 1987-04-10 1987-04-10 Drink cooler

Publications (1)

Publication Number Publication Date
WO1988007972A1 true WO1988007972A1 (en) 1988-10-20

Family

ID=10615643

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1988/000273 WO1988007972A1 (en) 1987-04-10 1988-04-08 Drink coolers

Country Status (3)

Country Link
AU (1) AU1544488A (en)
GB (1) GB2204389A (en)
WO (1) WO1988007972A1 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2327489A (en) * 1997-07-19 1999-01-27 Wilman Marine Limited Heat exchanger for a dispensing tap
US6974598B2 (en) 1999-05-14 2005-12-13 Coors Worldwide Inc. Method of cooling a beverage
WO2007029007A1 (en) * 2005-09-09 2007-03-15 Trinity Cooling Limited An apparatus for controlling the temperature of a liquid
US7241464B2 (en) 2001-01-12 2007-07-10 Coors Emea Properties, Inc. Draught alcoholic beverage
US7244458B1 (en) 1998-05-15 2007-07-17 Coors European Properties Gmbh Method of cooling a draught alcoholic beverage in a vessel
US7478583B2 (en) 1999-05-14 2009-01-20 Coors Emea Properties, Inc. Beverage
US11141309B2 (en) 2019-06-03 2021-10-12 Cooler Heads Care, Inc. Cooling cap assembly and cooling unit

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2361986A (en) * 2000-05-04 2001-11-07 T & R Theakston Ltd Dispensing apparatus for dispensing a beverage

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2292692A (en) * 1941-05-23 1942-08-11 Francis A Hoover Liquid refrigerating unit
US2342299A (en) * 1940-07-26 1944-02-22 Novadel Agene Corp Brew cooling and dispensing installation
US4094445A (en) * 1973-03-29 1978-06-13 Elliott-Lewis Corporation High speed beer dispensing method
DE8436597U1 (en) * 1984-12-14 1985-06-13 Hürtgen, Dieter, 4000 Düsseldorf Cooling device
WO1986000064A1 (en) * 1984-06-12 1986-01-03 Ummels Johannes A M Device for tapping beer

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2342299A (en) * 1940-07-26 1944-02-22 Novadel Agene Corp Brew cooling and dispensing installation
US2292692A (en) * 1941-05-23 1942-08-11 Francis A Hoover Liquid refrigerating unit
US4094445A (en) * 1973-03-29 1978-06-13 Elliott-Lewis Corporation High speed beer dispensing method
WO1986000064A1 (en) * 1984-06-12 1986-01-03 Ummels Johannes A M Device for tapping beer
DE8436597U1 (en) * 1984-12-14 1985-06-13 Hürtgen, Dieter, 4000 Düsseldorf Cooling device

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2327489A (en) * 1997-07-19 1999-01-27 Wilman Marine Limited Heat exchanger for a dispensing tap
US7244458B1 (en) 1998-05-15 2007-07-17 Coors European Properties Gmbh Method of cooling a draught alcoholic beverage in a vessel
US6974598B2 (en) 1999-05-14 2005-12-13 Coors Worldwide Inc. Method of cooling a beverage
US7478583B2 (en) 1999-05-14 2009-01-20 Coors Emea Properties, Inc. Beverage
US7241464B2 (en) 2001-01-12 2007-07-10 Coors Emea Properties, Inc. Draught alcoholic beverage
WO2007029007A1 (en) * 2005-09-09 2007-03-15 Trinity Cooling Limited An apparatus for controlling the temperature of a liquid
US11141309B2 (en) 2019-06-03 2021-10-12 Cooler Heads Care, Inc. Cooling cap assembly and cooling unit
US11622881B2 (en) 2019-06-03 2023-04-11 Cooler Heads Care, Inc. Cooling cap assembly and cooling unit

Also Published As

Publication number Publication date
GB2204389A (en) 1988-11-09
GB8708686D0 (en) 1987-05-13
AU1544488A (en) 1988-11-04

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