US20060278369A1 - Cooling method - Google Patents
Cooling method Download PDFInfo
- Publication number
- US20060278369A1 US20060278369A1 US11/505,078 US50507806A US2006278369A1 US 20060278369 A1 US20060278369 A1 US 20060278369A1 US 50507806 A US50507806 A US 50507806A US 2006278369 A1 US2006278369 A1 US 2006278369A1
- Authority
- US
- United States
- Prior art keywords
- products
- heat
- cabinet
- cooling
- shelves
- 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
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Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47F—SPECIAL FURNITURE, FITTINGS, OR ACCESSORIES FOR SHOPS, STOREHOUSES, BARS, RESTAURANTS OR THE LIKE; PAYING COUNTERS
- A47F3/00—Show cases or show cabinets
- A47F3/04—Show cases or show cabinets air-conditioned, refrigerated
- A47F3/0439—Cases or cabinets of the open type
- A47F3/0443—Cases or cabinets of the open type with forced air circulation
- A47F3/0447—Cases or cabinets of the open type with forced air circulation with air curtains
-
- 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
- F25D25/00—Charging, supporting, and discharging the articles to be cooled
- F25D25/02—Charging, supporting, and discharging the articles to be cooled by shelves
- F25D25/028—Cooled supporting means
-
- 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
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B23/00—Machines, plants or systems, with a single mode of operation not covered by groups F25B1/00 - F25B21/00, e.g. using selective radiation effect
- F25B23/006—Machines, plants or systems, with a single mode of operation not covered by groups F25B1/00 - F25B21/00, e.g. using selective radiation effect boiling cooling systems
Definitions
- the present invention relates to a method and equipment for keeping articles, particularly foods, cold.
- a method of cooling articles in a cabinet in which method the articles are positioned on shelf or deck in the cabinet which shelf or deck incorporates a heat pipe at least a part of which heat pipe is cooled.
- the invention also provides equipment for keeping articles cool which equipment comprises a cabinet incorporating at least one shelf or deck which shelf or deck incorporates a heat pipe there being a means to cool at least part of the heat pipe.
- the heat pipe is used because it is a passive, highly efficient heat transfer mechanism with a reported conductivity equivalent to approximately 500 times that of copper. Heat pipes are robust, simple and maintenance free devices that operate isothermally, require no pumping power and can transfer heat over a long distance. Heat pipes are described in an Article by Dunn P. D. and Reay D. A. (1994) in Heat Pipes 4 th Edition pp 1-3, 100, Elsevier Science Ltd. Oxford UK.
- the food is placed on the shelf which incorporates the heat pipe and preferably the end of the heat pipe at the rear of the shelf is cooled e.g. by blowing cold air over the pipe from the cabinet's cooling system.
- the heat pipe cools the shelf and keeps the food cool by conduction from the shelf to the food.
- the shelf can comprise one flat heat pipe or a series of connected heat pipes.
- the cooling means is a conventional cooling system in which air is recirculated within the cabinet where it is cooled by a plate fin and tube heat exchanger containing a low temperature refrigerant e.g. with a saturated refrigerant temperature of approximately ⁇ 7° C.
- the evaporator is in counterflow with the air, which enters the evaporator at approximately 5° C. and leaves at approximately ⁇ 5° C.
- the shelf is constructed as a heat pipe and positioning through the display area back plate into the supply air duct, which is at approximately ⁇ 5° C.
- phase change materials incorporated in the shelves or adjacent the shelves so as to provide extra cooling capacitance in case of power or other failure so that the change of phase provides a cooling effect in the case of such failure.
- the invention can be applied to conventional cabinets by replacing the existing shelves with shelves incorporating heat pipe or pipes and it is a feature of the invention that it can contribute to lower core food temperatures e.g. of up to approximately 2.5 to 3K which would lead to significant reductions in energy and capital costs as well as improvements in food quality and shelf life. Furthermore using heat pipe shelving could result in avoiding electric defrost, which is energy intensive.
- the invention can be used with any type of cabinet e.g. open fronted, closed cabinets and all types of frozen food cabinets.
- FIG. 1 shows the principle of operation of the simple heat pipe
- FIG. 2 shows a conventional cool cabinet
- FIG. 3 shows a cabinet incorporating the invention
- FIG. 4 shows a shelf in detail
- a heat pipe comprises a sealed tube ( 1 ) containing a wick ( 2 ) and a working fluid.
- the working fluid evaporates to form vapour ( 5 ) at heat source ( 4 ) and moves to the heat sink ( 3 ) where it condenses.
- the wick then returns the condensed liquid to the heat source ( 4 ) by capillary action.
- a typical cool cabinet comprises an insulated cabinet ( 15 ) with a transparent or open front. At the bottom of the cabinet are an evaporator ( 10 ) and a fan ( 11 ). Food is stored on shelves ( 12 ).
- the fan ( 11 ) blows air over evaporator ( 10 ) which cools the air and cold air e.g. at approximately ⁇ 5 ° C. passes over the back of the shelves in a duct ( 14 ) and over the food as shown to cool the food.
- the food is warmed by radiant heat, which is then transferred to the cooling air, which is recirculated over the evaporator to cool it.
- the cabinet ( 21 ), evaporator ( 22 ) and fan ( 23 ) are as in FIG. 2 , but the shelves are replaced by shelves ( 20 ) incorporating a heat pipe, shown in detail in FIG. 4 .
- the ends of the heat pipes ( 20 a ) protrude through the back of the display section into duct through which cooled air from the evaporator passes.
- the heat pipe removes heat from the food on shelves ( 20 ) and so aids the convective cooling effect.
- the air is recirculated as in FIG. 2 .
- the shelves ( 20 ) incorporating a heat pipe ( 23 ) have food ( 21 ) placed on them.
- Heat from the food is conducted by the heat pipe to the back of the heat pipe ( 20 a ), which is in the cold airflow from evaporator ( 22 ).
- the heat pipe rapidly conducts heat from the food to the cold part of the heat pipe ( 20 a ) and thus aids the convective cooling of the food.
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)
- Freezers Or Refrigerated Showcases (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
- Glass Compositions (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
Abstract
In a display cabinet (21) articles such as food placed on a shelf (20) can be kept cooler by having a heat pipe in the shelf with one end of the heat pipe (20 a) cooled by the cabinet's cooling system (22).
Description
- The present invention relates to a method and equipment for keeping articles, particularly foods, cold.
- When food is displayed which has to be kept cool or cold it can be displayed in a refrigerated cabinet which has an open or glass or transparent plastic front. In conventional cabinets the food is displayed on shelves or decks and is cooled by cold air supplied from within the cabinet. The air is circulated through the cabinet using fans and the bulk of the air is directed into the display area as a jet which forms an air curtain across the cabinet opening. The air is then recirculated within the cabinet where it is cooled by a plate fin and tube heat exchanger containing a low temperature refrigerant with a saturated refrigerant temperature of approximately −7° C. The evaporator is normally in counterflow with the air, which enters the evaporator at approximately 5° C. and leaves at approximately −5° C, the exact temperatures will vary with the make and type of cabinet the temperature variations may be for example ±3K.
- It has been found that, in practice it is difficult to maintain display cabinets at low temperatures e.g. below 5° C. and as result food is stored on display at higher temperatures. This is because convection is, however not an effective cooling mechanism. This is due in part to the low heat transfer coefficient caused by low velocity air, but it is also because the air close to the cabinet front is warm due to air ingress. As a result convective cooling systems maintain a large spread of temperatures within the cabinet, with the higher temperature food near to the front opening. Lower food temperatures are achievable with conventional systems, however, this requires the use of lower temperature air, and because of the large temperature spread with the cabinet, low temperature air will lead to localised freezing of some food products and frost damage to food.
- Providing more powerful cooling systems, as well as being expensive can lead to local freezing and ice formation so that defrosting is required.
- Although the food is normally delivered to the cabinet at the required food storage temperature, cooling is required to offset gains to the food which are purely a result of radiant interchange between the food and the external supermarket/shop environment. The cooling load necessary to offset these gains is only a fraction of that delivered to the cabinet. At best this low heat transfer rate results in excessive energy use, high equipment costs and reduces food shelf life. At worst, the low efficiency can result in failure to meet food hygiene temperatures which can present food safety issues.
- It has been proposed to provide significant additional cooling to the food by positioning the food directly in contact with a cold base. This was achieved by siting the food on a base in contact with the evaporator. Significantly increasing heat transfer to the food in this way enables the cabinet to operate more efficiently and results in significant reductions in energy consumption, as well as improvements in food quality/safety. However as most chilled cabinets utilise adjustable shelving, producing conduction by siting the food shelves onto a fixed evaporator surface is not a practical option.
- We have now devised a method of providing conductive cooling to the food but still maintaining adjustable shelving.
- According to the invention there is provided a method of cooling articles in a cabinet in which method the articles are positioned on shelf or deck in the cabinet which shelf or deck incorporates a heat pipe at least a part of which heat pipe is cooled.
- The invention also provides equipment for keeping articles cool which equipment comprises a cabinet incorporating at least one shelf or deck which shelf or deck incorporates a heat pipe there being a means to cool at least part of the heat pipe.
- The heat pipe is used because it is a passive, highly efficient heat transfer mechanism with a reported conductivity equivalent to approximately 500 times that of copper. Heat pipes are robust, simple and maintenance free devices that operate isothermally, require no pumping power and can transfer heat over a long distance. Heat pipes are described in an Article by Dunn P. D. and Reay D. A. (1994) in Heat Pipes 4 th Edition pp 1-3, 100, Elsevier Science Ltd. Oxford UK.
- In use the food is placed on the shelf which incorporates the heat pipe and preferably the end of the heat pipe at the rear of the shelf is cooled e.g. by blowing cold air over the pipe from the cabinet's cooling system. The heat pipe cools the shelf and keeps the food cool by conduction from the shelf to the food.
- The shelf can comprise one flat heat pipe or a series of connected heat pipes.
- Preferably the cooling means is a conventional cooling system in which air is recirculated within the cabinet where it is cooled by a plate fin and tube heat exchanger containing a low temperature refrigerant e.g. with a saturated refrigerant temperature of approximately −7° C. The evaporator is in counterflow with the air, which enters the evaporator at approximately 5° C. and leaves at approximately −5° C.
- In use in a cabinet for keeping food cool there can be conventional convective cooling which is supplemented by conductive heat transfer provided by a shelf cooling mechanism incorporating a heat pipe so that the shelf is used to display the food and also to transfer heat from it to the cabinet supply air duct.
- Preferably the shelf is constructed as a heat pipe and positioning through the display area back plate into the supply air duct, which is at approximately −5° C.
- There can be phase change materials incorporated in the shelves or adjacent the shelves so as to provide extra cooling capacitance in case of power or other failure so that the change of phase provides a cooling effect in the case of such failure.
- The invention can be applied to conventional cabinets by replacing the existing shelves with shelves incorporating heat pipe or pipes and it is a feature of the invention that it can contribute to lower core food temperatures e.g. of up to approximately 2.5 to 3K which would lead to significant reductions in energy and capital costs as well as improvements in food quality and shelf life. Furthermore using heat pipe shelving could result in avoiding electric defrost, which is energy intensive.
- The invention can be used with any type of cabinet e.g. open fronted, closed cabinets and all types of frozen food cabinets.
- The invention is described in the accompanying drawings in which:
-
FIG. 1 shows the principle of operation of the simple heat pipe -
FIG. 2 shows a conventional cool cabinet -
FIG. 3 shows a cabinet incorporating the invention and -
FIG. 4 shows a shelf in detail - Referring to
FIG. 1 a heat pipe comprises a sealed tube (1) containing a wick (2) and a working fluid. When heat is applied, the working fluid evaporates to form vapour (5) at heat source (4) and moves to the heat sink (3) where it condenses. The wick then returns the condensed liquid to the heat source (4) by capillary action. Referring toFIG. 2 a typical cool cabinet comprises an insulated cabinet (15) with a transparent or open front. At the bottom of the cabinet are an evaporator (10) and a fan (11). Food is stored on shelves (12). In use the fan (11) blows air over evaporator (10) which cools the air and cold air e.g. at approximately −5° C. passes over the back of the shelves in a duct (14) and over the food as shown to cool the food. The food is warmed by radiant heat, which is then transferred to the cooling air, which is recirculated over the evaporator to cool it. - Referring to
FIG. 3 the cabinet (21), evaporator (22) and fan (23) are as inFIG. 2 , but the shelves are replaced by shelves (20) incorporating a heat pipe, shown in detail inFIG. 4 . The ends of the heat pipes (20 a) protrude through the back of the display section into duct through which cooled air from the evaporator passes. As well as the cooling effect of the air, the heat pipe removes heat from the food on shelves (20) and so aids the convective cooling effect. The air is recirculated as inFIG. 2 . Referring toFIG. 4 the shelves (20) incorporating a heat pipe (23) have food (21) placed on them. Heat from the food is conducted by the heat pipe to the back of the heat pipe (20 a), which is in the cold airflow from evaporator (22). The heat pipe rapidly conducts heat from the food to the cold part of the heat pipe (20 a) and thus aids the convective cooling of the food.
Claims (6)
1. An apparatus for keeping products cold comprising:
(a) a cabinet having a closed back portion, closed upper and lower portions and an open front portion exposed to ambient air;
(b) shelf means in said cabinet for holding products to be kept cold; said shelf means having front and back portions;
(c) heat pipe means in thermal heat exchange relationship with said shelf means; said pipe means having front and back portions;
(d) means for circulating cold air in said cabinet for convection cooling of said products; and
(e) means for directing at least some of said cold air portions of said heat pipe means for providing conduction cooling of said shelf means and said food in addition to said convection cooling.
2. The apparatus of claim 1 wherein said heat pipe means include hollow passage means for the flow of a refrigerant therethrough and wick means for causing said refrigerant to flow through said hollow passage means.
3. An open refrigeration cabinet comprising:
(a) a plurality of shelves composed of thermally conductive material for supporting products to be cooled;
(b) means for circulating a cold gas for convection cooling of said products; and
(c) heat pipe means in thermal exchange relationship with said shelves and with said cold gas for conduction cooling of said shelves and products in addition to the cooling of said products by said convection cooling.
4. The refrigeration cabinet of claim 3 wherein said heat pipe means include hollow passage means for flowing refrigerant therethrough and wick means for circulating said refrigerant through said passage means.
5. A method of cooling products in an open refrigerated cabinet including shelves supporting products comprising:
(a) cooling said products by flowing cold air in contact with said products and removing heat therefrom by convection cooling;
(b) providing a plurality of heat pipes in direct thermal contact with said shelves;
(c) flowing a portion of said cold air in heat exchange relationship with said plurality of heat pipes; and
(d) circulating a refrigerant in said heat pipes so as to remove heat from said heat pipes and thereby providing a second source of refrigeration to said shelves.
6. The method of claim 5 including the steps of providing wicking material in said heat pipes and circulating said refrigerant through said heat pipes by wicking action.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/505,078 US20060278369A1 (en) | 2000-08-17 | 2006-08-16 | Cooling method |
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB0020171.5A GB0020171D0 (en) | 2000-08-17 | 2000-08-17 | Cooling method |
GB0020171 | 2000-08-17 | ||
WOPCT/GB01/03675 | 2001-08-16 | ||
US10/362,383 US20040011077A1 (en) | 2000-08-17 | 2001-08-16 | Cooling method |
PCT/GB2001/003675 WO2002015752A1 (en) | 2000-08-17 | 2001-08-16 | Cooling method |
US11/505,078 US20060278369A1 (en) | 2000-08-17 | 2006-08-16 | Cooling method |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/362,383 Continuation US20040011077A1 (en) | 2000-08-17 | 2001-08-16 | Cooling method |
Publications (1)
Publication Number | Publication Date |
---|---|
US20060278369A1 true US20060278369A1 (en) | 2006-12-14 |
Family
ID=9897722
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/362,383 Abandoned US20040011077A1 (en) | 2000-08-17 | 2001-08-16 | Cooling method |
US11/505,078 Abandoned US20060278369A1 (en) | 2000-08-17 | 2006-08-16 | Cooling method |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/362,383 Abandoned US20040011077A1 (en) | 2000-08-17 | 2001-08-16 | Cooling method |
Country Status (8)
Country | Link |
---|---|
US (2) | US20040011077A1 (en) |
EP (1) | EP1309261B1 (en) |
JP (1) | JP2004506463A (en) |
AT (1) | ATE349935T1 (en) |
AU (1) | AU2001278621A1 (en) |
DE (1) | DE60125779T2 (en) |
GB (1) | GB0020171D0 (en) |
WO (1) | WO2002015752A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20100079948A1 (en) * | 2008-09-30 | 2010-04-01 | Sanyo Electric Co., Ltd. | Display Device |
US20130002099A1 (en) * | 2011-06-30 | 2013-01-03 | Pepsico, Inc. | Modular Refrigerated Merchandise Display System |
CN104223854A (en) * | 2014-09-16 | 2014-12-24 | 湖南大学 | Novel refrigerated display cabinet |
US9532661B2 (en) | 2011-06-30 | 2017-01-03 | Pepsico, Inc. | Modular refrigerated merchandise display system |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AR036872A1 (en) | 2001-08-13 | 2004-10-13 | Du Pont | ANTRANILAMIDE COMPOSITE, COMPOSITION THAT INCLUDES IT AND METHOD FOR CONTROLLING AN INVERTEBRATE PEST |
TW200724033A (en) | 2001-09-21 | 2007-07-01 | Du Pont | Anthranilamide arthropodicide treatment |
WO2007053148A1 (en) * | 2005-11-04 | 2007-05-10 | Carrier Corroration | Refrigerated merchandiser and shelf therefor |
DE102007042240B3 (en) * | 2007-09-06 | 2009-02-05 | Caverion Gmbh | Method and device for air conditioning a showcase |
CA2740911C (en) | 2008-10-17 | 2014-07-29 | Nestec S.A. | Whey protein compositions, methods and uses |
EP2715257A1 (en) * | 2011-05-26 | 2014-04-09 | Viking Cold Solutions, Inc. | Cold storage rack system with overhead pcm support |
US9016070B2 (en) | 2012-09-14 | 2015-04-28 | Whirlpool Corporation | Phase change materials for refrigeration and ice making |
US10240850B1 (en) * | 2013-03-15 | 2019-03-26 | Joseph P. Stine | Supplemental refrigeration heat sink and related systems and methods |
US20150297000A1 (en) * | 2014-04-22 | 2015-10-22 | Heatcraft Refrigeration Products Llc | Refrigerated Display Case with Temperature Controlled Shelves |
GB2531365B (en) * | 2014-12-23 | 2017-01-11 | Flint Eng Ltd | Heat transfer apparatus |
Citations (5)
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US3792318A (en) * | 1972-02-01 | 1974-02-12 | Siemens Ag | Cooling apparatus for flat semiconductors using one or more heat pipes |
US4340111A (en) * | 1972-10-04 | 1982-07-20 | Skala Stephen F | Evaporative cooling of containers in a pressure vessel |
US5502979A (en) * | 1993-02-12 | 1996-04-02 | Renard; Andre | Collapsible refrigerated cabinets |
US6220338B1 (en) * | 1997-05-12 | 2001-04-24 | Italinnova S.A.S. | Installation for the cold storage with localized reheating of food on meal trays |
US6310772B1 (en) * | 1999-09-02 | 2001-10-30 | Special Product Company | Enclosure for telecommunications equipment |
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US5846703A (en) * | 1990-05-15 | 1998-12-08 | Diatron Corporation | Fluorescence immunoassays using fluorescent dyes free of aggregation and serum binding |
US5201364A (en) * | 1990-09-17 | 1993-04-13 | Tippmann Vincent P | Apparatus for heating and cooling food articles having removable plates with fluid sealed therein |
US5404935A (en) * | 1991-05-31 | 1995-04-11 | Beltec International | Cabinet-style apparatus for transferring heat to food and cooling food |
CA2094673C (en) * | 1992-10-01 | 2000-10-24 | Joseph R. Lovin | Hydronic cooling of particle accelerator window |
US5797445A (en) * | 1992-11-23 | 1998-08-25 | Standex International Corporation | Refrigerated rethermalization cart |
EP0848800B1 (en) * | 1995-09-08 | 2000-12-13 | René Grandi | Mobile trolley for distributing hot and cold meal trays having warming-up and refrigeration capacities with self-contained reserve and ... |
FR2755359B1 (en) * | 1996-11-05 | 1999-02-05 | Italinnova Sas | COLD STORAGE CABINET WITH REHABILITATION OF COOKED DISHES ON MEAL TRAYS |
FR2766148B1 (en) * | 1997-07-16 | 1999-09-17 | Soc D Const De Materiel Metall | TROLLEY COMPRISING A COOLING DEVICE THAT CAN BE INSTALLED AT ANY TIME CHOSEN BY THE USER AND METHOD FOR PROVIDING A HEATED FOOD |
FR2778733B1 (en) * | 1998-05-12 | 2000-08-18 | Austria Haus Technik Aktienges | SHELF-EXCHANGERS FOR SALE REFRIGERATED FURNITURE AND REFRIGERATED FURNITURE USED BY SUCH SHELVES |
FR2805443B1 (en) * | 2000-02-24 | 2002-07-19 | Italinnova Sas | DEVICE FOR STORING AND HEATING MEAL TRAYS WITH MODULAR HOT AND COLD ZONES |
-
2000
- 2000-08-17 GB GBGB0020171.5A patent/GB0020171D0/en not_active Ceased
-
2001
- 2001-08-16 US US10/362,383 patent/US20040011077A1/en not_active Abandoned
- 2001-08-16 AU AU2001278621A patent/AU2001278621A1/en not_active Abandoned
- 2001-08-16 AT AT01956702T patent/ATE349935T1/en not_active IP Right Cessation
- 2001-08-16 DE DE60125779T patent/DE60125779T2/en not_active Expired - Fee Related
- 2001-08-16 EP EP01956702A patent/EP1309261B1/en not_active Expired - Lifetime
- 2001-08-16 WO PCT/GB2001/003675 patent/WO2002015752A1/en active IP Right Grant
- 2001-08-16 JP JP2002520671A patent/JP2004506463A/en not_active Withdrawn
-
2006
- 2006-08-16 US US11/505,078 patent/US20060278369A1/en not_active Abandoned
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3792318A (en) * | 1972-02-01 | 1974-02-12 | Siemens Ag | Cooling apparatus for flat semiconductors using one or more heat pipes |
US4340111A (en) * | 1972-10-04 | 1982-07-20 | Skala Stephen F | Evaporative cooling of containers in a pressure vessel |
US5502979A (en) * | 1993-02-12 | 1996-04-02 | Renard; Andre | Collapsible refrigerated cabinets |
US6220338B1 (en) * | 1997-05-12 | 2001-04-24 | Italinnova S.A.S. | Installation for the cold storage with localized reheating of food on meal trays |
US6310772B1 (en) * | 1999-09-02 | 2001-10-30 | Special Product Company | Enclosure for telecommunications equipment |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20100079948A1 (en) * | 2008-09-30 | 2010-04-01 | Sanyo Electric Co., Ltd. | Display Device |
US20130002099A1 (en) * | 2011-06-30 | 2013-01-03 | Pepsico, Inc. | Modular Refrigerated Merchandise Display System |
US9532661B2 (en) | 2011-06-30 | 2017-01-03 | Pepsico, Inc. | Modular refrigerated merchandise display system |
CN104223854A (en) * | 2014-09-16 | 2014-12-24 | 湖南大学 | Novel refrigerated display cabinet |
Also Published As
Publication number | Publication date |
---|---|
DE60125779D1 (en) | 2007-02-15 |
US20040011077A1 (en) | 2004-01-22 |
WO2002015752A1 (en) | 2002-02-28 |
EP1309261B1 (en) | 2007-01-03 |
GB0020171D0 (en) | 2000-10-04 |
EP1309261A1 (en) | 2003-05-14 |
ATE349935T1 (en) | 2007-01-15 |
JP2004506463A (en) | 2004-03-04 |
AU2001278621A1 (en) | 2002-03-04 |
DE60125779T2 (en) | 2007-05-24 |
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