WO2004075694A1 - Refrigerated display merchandiser with improved air curtain - Google Patents
Refrigerated display merchandiser with improved air curtain Download PDFInfo
- Publication number
- WO2004075694A1 WO2004075694A1 PCT/US2004/004935 US2004004935W WO2004075694A1 WO 2004075694 A1 WO2004075694 A1 WO 2004075694A1 US 2004004935 W US2004004935 W US 2004004935W WO 2004075694 A1 WO2004075694 A1 WO 2004075694A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- air
- air curtain
- curtain
- discharge velocity
- refrigerated
- Prior art date
Links
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
-
- 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
Definitions
- the present invention relates generally to refrigerated display merchandisers of the type used in supermarkets, mini-marts, convenience stores and other commercial establishments for displaying and merchandising refrigerated or frozen products for sale. More particularly, the present invention relates to open-front refrigerated display merchandisers of the type wherein a curtain of cold refrigerated air is passed downwardly across the open front product display region of the merchandiser.
- Refrigerated display merchandisers also commonly referred to as display cases, having open front display regions are commonly used in supermarkets, mini-marts, convenience stores and other commercial establishments for displaying and merchandising refrigerated or frozen products for sale.
- the open front nature of such display cases permits the consumer to simply reach into the product display region to select and remove a product for purchase without the inconvenience of needing to open a door to access the product.
- a curtain of cold refrigerated air is passed downwardly at a relatively high velocity across the open front of the display case to form an invisible boundary between the product display region and the region of the store in front of the display case.
- This air curtain not only helps retain cool refrigerated air within the product display region of the display case, thereby cooling the display product on the shelves of the display case, but also functions to isolate, to a certain extent, the product display region from the ambient air within the store.
- Ambient air that does enter into open product display region undesirably causes increased energy consumption by increasing the cooling demand on the refrigeration system associated with the display case. Further, such ambient air may also cause a local temperature rise within the product display region sufficient to result in an undesirable rise in product temperature that could adversely impact upon product quality.
- a problem encountered with when passing a curtain of refrigerated air downwardly across the open front of the product display region of the display case lies in the entrainment of ambient air into the stream of refrigerated air forming the air curtain.
- Turbulence exists at the boundary between the relatively high velocity curtain air and the generally quiescent ambient air lying in front of the display case.
- some ambient air is undesirably entrained into the air curtain.
- Multiple air curtain display cases have been developed in the prior art to address this entrainment problem.
- display cases having two adjacent, parallel, but independently generated, air curtains of refrigerated air are common in the art.
- the outermost air curtain has a slightly higher temperature than the innermost air curtain, so as to protect the colder innermost air curtain from the impact of ambient air entrainment.
- Patents 5,345,778 and 5,357,767 each disclose establishing an ambient air curtain outwardly of a pair of refrigerated air curtains.
- the curtain closest the product display region of the display case is coolest, while the center curtain is at a temperature slightly warmer than the innermost curtain, but substantially cooler than the outermost ambient air curtain.
- the center curtain of warmer refrigerated air serves to buffer the innermost colder refrigerated air curtain from warm air intrusion from the outermost ambient air curtain.
- the outermost curtain of ambient air is directed substantially vertically downwardly, either parallel to and adjacent the center air curtain or slightly inwardly toward the center air curtain, so as to preclude refrigerated air from the center and innermost refrigerated air curtains from spilling out of the product display region of the display case.
- the outermost ambient air curtain itself ideally spills into the store near the base of the display case so as to not be drawn into the air return inlets through which the refrigerated air curtains return to the evaporator compartment.
- the refrigerated merchandiser of the present invention includes a display case defining a product display region having an open-front isolated from the ambient air of the store by means of a downwardly directed inner air curtain of relatively cold refrigerated air and a downwardly directed outer air curtain, most advantageously of relatively warmer air.
- the discharge velocity of the outer air curtain is maintained at a velocity at least 1.4 times the discharge velocity of the inner air curtain, and most advantageously in the range of about 1.4 to about 2.4 times greater than the discharge velocity of the inner air stream.
- the outer air curtain comprises ambient air.
- Figure 1 illustrates a side elevatioir profile of a preferred embodiment of a refrigerated merchandiser having an open-front display case with a dual stream air curtain separating a first environment within the display case from a second environment external of the display case;
- Figure 2 is a graphical presentation showing the variation of load demand on the cooling system associated with the refrigeration merchandiser as the air curtain velocity ratio changes.
- the refrigerated merchandiser 10 includes an outer cabinet 12 and an inner cabinet liner 20 that defines within its bounds an open-front product display region 30.
- the outer cabinet has a base 13, a rear wall 14 extending upwardly from the back of the base 13, a top wall 15 extending forwardly from the rear wall and a pair of side walls 16 extending vertically from the base 13 to the top wall 15 and forwardly from the rear wall 14.
- the inner cabinet liner 20 has a top panel 28, a back panel 26, a bottom panel 24 and opposed side panels 23 which together bound the open-front product display region 30.
- Each of the cabinet base 13, rear wall 14, top wall 15 and side walls 16 is insulated, as in conventional practice, to thermally isolate the interior of the cabinet 12, including the product display region 30, from excessive heat transfer therethrough.
- Perishable product 80 being merchandized may be displayed on shelves 18 disposed within the product display region 30 and upon the upper surface of the bottom panel 24.
- the product display region 30 has an open front 25 so as to permit consumers to not only view, but also reach into the product display region 30 to select and remove items of product 80 that they desire to purchase.
- Product display region 30 is cooled in a conventional manner to a desired product temperature, typically to a temperature between -10°F to less than about 40°F, depending upon what product is being merchandised therein and whether the product is frozen or non-frozen.
- the refrigerated merchandiser 10 further includes a refrigeration compartment 40, typically disposed in the portion of the display cabinet 12 between the base 13 and the bottom panel 24, as depicted in Figure 1, wherein components of the refrigerant system, typically a tube coil evaporator 50 and a air mover 60, such as for example one or more fans, are housed.
- components of the refrigerant system typically a tube coil evaporator 50 and a air mover 60, such as for example one or more fans, are housed.
- a tube coil evaporator 50 and a air mover 60 such as for example one or more fans
- the specific type of air mover employed is not relevant to or limiting of the present invention.
- refrigerant passing through the tubes of the evaporator 40 cools air passing over the surface of the evaporator tubes.
- the refrigerant is typically supplied from a remote refrigeration unit located elsewhere within the store.
- An air circulation duct 32 is formed between the rear wall 14 and the top wall 15 of the outer cabinet 12 and the back panel 26 and top panel 28, respectively, of the inner cabinet liner 20.
- Air mover 60 serves to direct air from air inlet 42 through the compartment 40 so as to traverse evaporator 50, and thence through duct 32 to a first air outlet 34. As noted before, this circulating air has been cooled to a desired temperature as it traverses the evaporator 50.
- the cool refrigeration air is directed via vanes provided within the first air outlet 34 downwardly along first path across the opsn front 25 of the product display region back to air inlet 42.
- the refrigerating air is recycled and repeatedly recirculated through the compartment 40 and duct 32 to converse energy expended in cooling the refrigeration air.
- a cool air curtain 45 is formed across the open-front product display region 30 from top to bottom thereof.
- a plurality of openings 24 may be provided in the back panel 26 through which a portion of cold refrigerating air circulating through duct 32 may pass directly into the product display region 30. This refrigerating air will also be drawn by the air mover back through the air inlet 42 into the compartment 40 to be recirculated.
- a second air outlet 70 is provided outwardly of the first air outlet 34 at the top front of the cabinet 12.
- second air outlet 70 serves to direct relatively warm air generally downwardly along a second path lying outwardly of the first path followed by the cool refrigerating air.
- a relatively warm outer air curtain 65 is formed outside, i.e. further away from the product display region 30, of the relatively cool inner air curtain 45.
- the relatively warm outer air curtain 65 serves as a buffer between the relatively cool inner air curtain 45 and the ambient environment of the store. Further, when the outer air curtain 65 reaches the base region of the display cabinet 12, it spills outwardly into the store rather than into the air inlet 42 in the forward end of the base portion of the cabinet. Consequently, the entrainment of warm air into the relatively cool inner air curtain and subsequent passage through inlet 42 into the compartment 40 is minimized, thereby reducing energy consumption in cooling the recirculating refrigeration air.
- first air outlet 34 and second air outlet 70 are located at top and forward region of display case 12, with the second air outlet 70 being located outwardly of the first air outlet 34, that is, closer to the front of the display cabinet 12.
- first air outlet 34 is in communication with duct 32 and directs relatively cool air driven by air mover 60 downwardly across open front of the product display region 30 to form the inner air curtain 45.
- the second air outlet 70 is in fluid communication with a source of relatively warm air, for example ambient air from the store, and directs relatively warm air driven by a second air mover 72 associated therewith downwardly to form an outer air curtain 65.
- the outer air curtain 65 is directed downwardly at a discharge velocity that is at least 1.4 times greater than the discharge velocity of the inner air curtain 45.
- discharge velocity refers to the velocity of the air stream discharging from its respective air outlet at the top of the display case 30.
- the discharge velocity of the inner air curtain 45 is the velocity of the air stream discharging from air outlet 34
- the discharge velocity of the outer air curtain 65 is the velocity of the air stream discharging from air outlet 70.
- the discharge velocity of the outer air curtain 65 is maintained at a level of about 1.4to about 2.4 times faster than the discharge velocity of the inner air stream 45.
- the vertical axis thereof represents the load reduction factor, which is the refrigeration load of the dual air curtain compared to the load for an inner air curtain only
- the horizontal axis represents the ratio of the velocity of the outer air curtain in that of the inner air curtain. Accordingly, the lower the load reduction factor, the more effective is the dual air curtain.
- the effectiveness of dual parallel air curtains as a barrier in reducing passage of flow across the air curtain is maximized by maintaining the ratio of the discharge velocity of the outer curtain to the discharge velocity of the inner curtain within the range of from about 1.4 to about 1.8.
- Maintaining the air curtain velocity ratio within this range minimizes the velocity gradient, and therefore shear instabilities, between the adjacent air curtains along the length of the interface between the adjacent air curtains, thereby resulting in less entrainment of air from the higher velocity air curtain into the lower velocity air curtain. Therefore, an very effective separation barrier may be maintained between two environments through use of the present invention through a dual air curtain of parallel streams of a first and a second fluid by maintaining the discharge velocity of the outer air stream a level of about 1.4 to about 1.8 times faster than the discharge velocity of the inner air stream.
Landscapes
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Freezers Or Refrigerated Showcases (AREA)
- Packages (AREA)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
MXPA05009078A MXPA05009078A (en) | 2003-02-26 | 2004-02-18 | Refrigerated display merchandiser with improved air curtain. |
EP04712421A EP1596692A1 (en) | 2003-02-26 | 2004-02-18 | Refrigerated display merchandiser with improved air curtain |
BRPI0407819-5A BRPI0407819A (en) | 2003-02-26 | 2004-02-18 | refrigerated merchandise display |
CA002517219A CA2517219C (en) | 2003-02-26 | 2004-02-18 | Refrigerated display merchandiser with improved air curtain |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US37464003A | 2003-02-26 | 2003-02-26 | |
US10/374,640 | 2003-02-26 | ||
US10/752,134 US20040163401A1 (en) | 2003-02-26 | 2004-01-06 | Refrigerated display merchandiser with improved air curtain |
US10/752,134 | 2004-01-06 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004075694A1 true WO2004075694A1 (en) | 2004-09-10 |
Family
ID=32930203
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2004/004935 WO2004075694A1 (en) | 2003-02-26 | 2004-02-18 | Refrigerated display merchandiser with improved air curtain |
Country Status (7)
Country | Link |
---|---|
US (2) | US20040163401A1 (en) |
EP (1) | EP1596692A1 (en) |
KR (1) | KR100669308B1 (en) |
BR (1) | BRPI0407819A (en) |
CA (1) | CA2517219C (en) |
MX (1) | MXPA05009078A (en) |
WO (1) | WO2004075694A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7681409B2 (en) | 2004-09-30 | 2010-03-23 | Hill Phoenix, Inc. | Curtain air admission assembly |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20040163401A1 (en) * | 2003-02-26 | 2004-08-26 | Alahyari Abbas A. | Refrigerated display merchandiser with improved air curtain |
WO2007021267A1 (en) * | 2005-08-12 | 2007-02-22 | Carrier Corporation | Thermoelectric cooling for a refrigerated display case |
KR100705113B1 (en) | 2005-09-26 | 2007-04-06 | 기아자동차주식회사 | Cleaning device for cluster in automobile |
US8973385B2 (en) * | 2007-03-02 | 2015-03-10 | Hill Phoenix, Inc. | Refrigeration system |
US9675185B2 (en) | 2010-04-23 | 2017-06-13 | Hussmann Corporation | Refrigerated merchandiser with shelf air discharge |
US8713954B2 (en) | 2010-08-23 | 2014-05-06 | Hill Phoenix, Inc. | Air curtain system for an open-front refrigerated case with dual temperature zones |
CN103300640A (en) * | 2012-11-29 | 2013-09-18 | 浙江盾安冷链系统有限公司 | Efficient cold air cycle air curtain system of display cabinet |
US11085455B1 (en) * | 2014-08-11 | 2021-08-10 | Delta T, Llc | System for regulating airflow associated with product for sale |
KR20160059417A (en) * | 2014-11-18 | 2016-05-26 | 후지 덴키 가부시키가이샤 | Showcase |
US10314411B2 (en) | 2016-05-25 | 2019-06-11 | Hussmann Corporation | Refrigerated merchandiser with airflow support system |
US10016071B2 (en) * | 2016-05-31 | 2018-07-10 | Pepsico, Inc. | Product merchandising systems and methods |
US10629854B2 (en) | 2017-08-18 | 2020-04-21 | Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd. | Substrate pre-baking device |
KR20210017717A (en) * | 2019-08-09 | 2021-02-17 | 삼성전자주식회사 | Refrigerator |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3289432A (en) * | 1965-08-06 | 1966-12-06 | Emhart Corp | Display case |
US3304736A (en) * | 1965-08-06 | 1967-02-21 | Emhart Corp | Refrigerated display case |
US4633677A (en) * | 1984-08-13 | 1987-01-06 | Sanden Corporation | Refrigerated display case |
US5357767A (en) * | 1993-05-07 | 1994-10-25 | Hussmann Corporation | Low temperature display merchandiser |
Family Cites Families (57)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3125864A (en) * | 1964-03-24 | Self-service refrigerated display case | ||
US3063252A (en) * | 1961-08-17 | 1962-11-13 | Lamb Frank Gilbert | Upright refrigerator showcase |
US3182466A (en) * | 1962-03-22 | 1965-05-11 | Dual Jet Refrigeration Company | Conditioned storage cabinet |
US3230733A (en) * | 1962-04-10 | 1966-01-25 | Emhart Corp | Refrigeration system and elements thereof |
US3233423A (en) * | 1962-12-26 | 1966-02-08 | Dual Jet Refrigeration Company | Refrigerated cabinet with circulating air panels |
US3229475A (en) * | 1963-07-05 | 1966-01-18 | Emhart Corp | Refrigerated display case |
US3232072A (en) * | 1965-01-08 | 1966-02-01 | Louis F Barroero | Shelf structure for refrigeration |
US3369375A (en) * | 1965-12-13 | 1968-02-20 | Mccray Refrigerator Company In | Refrigerated display case |
US3444698A (en) * | 1968-01-04 | 1969-05-20 | Ranco Inc | Control apparatus for refrigerated display case |
US3517526A (en) * | 1968-08-09 | 1970-06-30 | Emhart Corp | Refrigerated equipment |
US3648482A (en) * | 1969-09-05 | 1972-03-14 | Kyser Ind Corp | Method and apparatus for producing refrigerating constructions |
US3712078A (en) * | 1971-11-22 | 1973-01-23 | Krispin Eng Ltd | Refrigeration unit |
US3771323A (en) * | 1972-05-17 | 1973-11-13 | Dualjet Corp | Refrigerated reach-in display compartment |
US3812684A (en) * | 1972-12-07 | 1974-05-28 | Kysor Industrial Corp | Refrigerated display case |
ZA74348B (en) * | 1973-05-04 | 1974-11-27 | Emhart Corp | Refrigerated display case |
US3847135A (en) * | 1974-02-04 | 1974-11-12 | Gen Electric | Hinged adapter duct for oven vent |
US3888091A (en) * | 1974-04-04 | 1975-06-10 | Clark Equipment Co | Air distribution means for a refrigerated meat case |
US3850003A (en) * | 1974-04-05 | 1974-11-26 | Kysor Industrial Corp | Air defrost air curtain display case |
US3937033A (en) * | 1975-02-07 | 1976-02-10 | Kysor Industrial Corporation | Air defrost display case |
US4117698A (en) * | 1977-06-29 | 1978-10-03 | Kysor Industrial Corporation | Refrigerated display |
US4326385A (en) * | 1979-02-02 | 1982-04-27 | Tyler Refrigeration Corporation | Refrigerated merchandiser cabinet with air defrost ports |
US4267706A (en) * | 1979-05-31 | 1981-05-19 | Tyler Refrigeration Corporation | Shop around refrigerated merchandiser |
JPS5610672A (en) * | 1979-07-03 | 1981-02-03 | Hitoshi Karashima | Refrigerated cold storage display case |
US4414822A (en) * | 1979-08-29 | 1983-11-15 | Tyler Refrigeration Corporation | Refrigerated display case with colliding band air defrost |
US4457140A (en) * | 1982-05-21 | 1984-07-03 | Leitner Corporation | Modular refrigeration unit and cabinet systems therewith |
NL8202449A (en) * | 1982-06-16 | 1984-01-16 | Hermen Kooy | CUPBOARD FOR CUT FLOWERS. |
US4608776A (en) * | 1982-07-29 | 1986-09-02 | Hermen Kooy | Cabinet for cut-off flowers |
US4845957A (en) * | 1988-04-15 | 1989-07-11 | Richardson James E | In-store refrigerated display system |
US4938034A (en) * | 1989-05-03 | 1990-07-03 | Hill Refrigeration Corporation | Opened front refrigerated display case |
US5048303A (en) * | 1990-07-16 | 1991-09-17 | Hill Refrigeration Division Of The Jepson Corporation | Open front refrigerated display case with improved ambient air defrost means |
JPH04113183A (en) * | 1990-09-04 | 1992-04-14 | Sanyo Electric Co Ltd | Method for operating open show case |
US5086627A (en) * | 1990-11-19 | 1992-02-11 | Margaret Platt Borgen | Removable cooling unit for display case and method for using same |
US5347827A (en) * | 1992-07-01 | 1994-09-20 | The Coca-Cola Company | Modular refrigeration apparatus |
US5255530A (en) * | 1992-11-09 | 1993-10-26 | Whirlpool Corporation | System of two zone refrigerator temperature control |
FR2701368B1 (en) * | 1993-02-12 | 1995-05-24 | Andre Renard | Removable refrigerated units. |
US5345778A (en) * | 1993-05-07 | 1994-09-13 | Hussmann Corporation | Low temperature display merchandiser |
CA2200737A1 (en) * | 1994-10-19 | 1996-05-02 | Deltagraph A/S | A package and a method of packaging at least two mutually reactive photographic chemicals |
US5678421A (en) * | 1995-12-26 | 1997-10-21 | Habco Beverage Systems Inc. | Refrigeration unit for cold space merchandiser |
KR0159699B1 (en) * | 1996-06-12 | 1999-01-15 | 김광호 | Refrigerator |
KR19980054656A (en) * | 1996-12-27 | 1998-09-25 | 배순훈 | How to operate air curtain fan |
US5953929A (en) * | 1998-05-11 | 1999-09-21 | Bauman; Jeffrey E. | Modular refrigeration unit |
US5966958A (en) * | 1998-07-17 | 1999-10-19 | Habco Beverage Systems Inc. | Condensate tray in a refrigeration assembly |
KR100538175B1 (en) * | 1998-09-02 | 2006-03-20 | 삼성전자주식회사 | Refrigerator temperature control device and method thereof |
GB2358908B (en) * | 1998-10-30 | 2003-04-16 | Daewoo Electronics Co Ltd | Air curtain generator for refrigerator |
KR100308529B1 (en) * | 1998-10-30 | 2002-06-20 | 전주범 | Method and apparatus for driving an air curtain fan for a refrigerator |
ES1041549Y (en) * | 1998-11-13 | 2000-01-01 | Mellado Antonio Criado | IMPROVED FURNITURE FOR FOOD EXPOSURE AND CONSERVATION. |
US6234894B1 (en) * | 2000-03-13 | 2001-05-22 | Mark A. Goracke | Forced air vent register |
US6619052B1 (en) * | 2002-02-26 | 2003-09-16 | Tyler Refrigeration Corporation | Variable air curtain velocity control |
US6701739B2 (en) * | 2002-06-12 | 2004-03-09 | Tecumseh Products Company | Modular refrigeration system for refrigeration appliance |
US6701735B1 (en) * | 2002-10-04 | 2004-03-09 | Carrier Commercial Refrigeration, Inc. | Multi deck merchandiser with horizontal air curtains |
US7251954B2 (en) * | 2002-10-18 | 2007-08-07 | Habco Beverage Systems Inc. | Modular refrigeration unit and refrigerator |
US6701736B1 (en) * | 2002-12-31 | 2004-03-09 | Gamon Plus, Inc. | Refrigerated merchandising apparatus |
US20040163401A1 (en) * | 2003-02-26 | 2004-08-26 | Alahyari Abbas A. | Refrigerated display merchandiser with improved air curtain |
US6722149B1 (en) * | 2003-01-07 | 2004-04-20 | Carrier Commercial Refrigeration, Inc. | Refrigerated display merchandiser |
US7162882B2 (en) * | 2003-01-07 | 2007-01-16 | Carrier Corporation | Multi-band air curtain separation barrier |
US6775994B1 (en) * | 2003-02-25 | 2004-08-17 | Carrier Commercial Refrigeration, Inc. | Refrigerated display merchandiser with variable air curtain |
US6948324B2 (en) * | 2003-06-30 | 2005-09-27 | Fortune Resources Enterprise, Inc. | Refrigerator cooler and housing cabinet and an improved method of insertion of the refrigerator compressor unit |
-
2004
- 2004-01-06 US US10/752,134 patent/US20040163401A1/en not_active Abandoned
- 2004-02-18 BR BRPI0407819-5A patent/BRPI0407819A/en not_active IP Right Cessation
- 2004-02-18 KR KR1020057015920A patent/KR100669308B1/en not_active IP Right Cessation
- 2004-02-18 EP EP04712421A patent/EP1596692A1/en not_active Withdrawn
- 2004-02-18 MX MXPA05009078A patent/MXPA05009078A/en not_active Application Discontinuation
- 2004-02-18 WO PCT/US2004/004935 patent/WO2004075694A1/en active Search and Examination
- 2004-02-18 CA CA002517219A patent/CA2517219C/en not_active Expired - Fee Related
-
2009
- 2009-06-19 US US12/488,411 patent/US20090255287A1/en not_active Abandoned
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3289432A (en) * | 1965-08-06 | 1966-12-06 | Emhart Corp | Display case |
US3304736A (en) * | 1965-08-06 | 1967-02-21 | Emhart Corp | Refrigerated display case |
US4633677A (en) * | 1984-08-13 | 1987-01-06 | Sanden Corporation | Refrigerated display case |
US5357767A (en) * | 1993-05-07 | 1994-10-25 | Hussmann Corporation | Low temperature display merchandiser |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7681409B2 (en) | 2004-09-30 | 2010-03-23 | Hill Phoenix, Inc. | Curtain air admission assembly |
Also Published As
Publication number | Publication date |
---|---|
KR100669308B1 (en) | 2007-01-16 |
CA2517219A1 (en) | 2004-09-10 |
EP1596692A1 (en) | 2005-11-23 |
MXPA05009078A (en) | 2005-10-19 |
US20090255287A1 (en) | 2009-10-15 |
BRPI0407819A (en) | 2006-02-14 |
US20040163401A1 (en) | 2004-08-26 |
CA2517219C (en) | 2009-07-21 |
KR20050103968A (en) | 2005-11-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1583444B1 (en) | Refrigerated display merchandiser | |
US20090255287A1 (en) | Refrigerated display merchandiser with improved air curtain | |
US7162882B2 (en) | Multi-band air curtain separation barrier | |
US7681409B2 (en) | Curtain air admission assembly | |
US20070012059A1 (en) | Ambient air curtain with floor air inlet | |
US20100024446A1 (en) | Refrigerated merchandiser with dual air curtain | |
US20060207279A1 (en) | Refrigerated merchandiser | |
AU2005209161B8 (en) | Refrigerated display merchandiser with improved air curtain | |
US3063254A (en) | Food merchandiser | |
US6775994B1 (en) | Refrigerated display merchandiser with variable air curtain | |
EP1587400B1 (en) | Method for establishing an air curtain separation barrier | |
CN1753634A (en) | Refrigerated display merchandiser with improved air curtain |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG UZ VC VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): BW GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: PA/a/2005/009078 Country of ref document: MX Ref document number: 2517219 Country of ref document: CA Ref document number: 20048050927 Country of ref document: CN |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2004712421 Country of ref document: EP Ref document number: 1020057015920 Country of ref document: KR |
|
WWP | Wipo information: published in national office |
Ref document number: 1020057015920 Country of ref document: KR |
|
WWP | Wipo information: published in national office |
Ref document number: 2004712421 Country of ref document: EP |
|
ENP | Entry into the national phase |
Ref document number: PI0407819 Country of ref document: BR |
|
DPEN | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed from 20040101) |