US20090205351A1 - Secondary airflow distribution for a display case - Google Patents

Secondary airflow distribution for a display case Download PDF

Info

Publication number
US20090205351A1
US20090205351A1 US12/374,406 US37440609A US2009205351A1 US 20090205351 A1 US20090205351 A1 US 20090205351A1 US 37440609 A US37440609 A US 37440609A US 2009205351 A1 US2009205351 A1 US 2009205351A1
Authority
US
United States
Prior art keywords
air
refrigerated case
fan system
air curtain
recited
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
Application number
US12/374,406
Inventor
Kwok Kwong Fung
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hill Phoenix Inc
Original Assignee
Hill Phoenix Inc
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 Hill Phoenix Inc filed Critical Hill Phoenix Inc
Priority to PCT/US2006/041708 priority Critical patent/WO2008051226A1/en
Assigned to CARRIER CORPORATION reassignment CARRIER CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: FUNG, KWOK KWONG
Assigned to HILL PHOENIX, INC. reassignment HILL PHOENIX, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: CARRIER COMMERCIAL REFRIGERATION, INC., CARRIER CORPORATION
Publication of US20090205351A1 publication Critical patent/US20090205351A1/en
Application status is Abandoned legal-status Critical

Links

Images

Classifications

    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47FSPECIAL FURNITURE, FITTINGS, OR ACCESSORIES FOR SHOPS, STOREHOUSES, BARS, RESTAURANTS OR THE LIKE; PAYING COUNTERS
    • A47F3/00Show cases or show cabinets
    • A47F3/04Show cases or show cabinets air-conditioned, refrigerated
    • A47F3/0439Cases or cabinets of the open type
    • A47F3/0443Cases or cabinets of the open type with forced air circulation
    • A47F3/0447Cases or cabinets of the open type with forced air circulation with air curtains

Abstract

A display case cools and displays products. A first fan system circulates cool air through the display case. The cool air is directed downwardly along a front of the display case to form a primary air curtain. A second fan system circulates ambient air to generate a secondary air curtain. The secondary air curtain is located between the primary air curtain and the outside environment, trapping the primary air curtain near an interior display volume of the display case. Each end of the second fan system is several inches shorter than the display case to allow for case to case attachment. The second fan system includes a louver near each of the side walls and a front of the second fan system. Each louver includes a plurality of slanted panels. The louvers direct the ambient air towards the side walls of the display case to improve the secondary discharge air velocity in a front corner area of the display case.

Description

    BACKGROUND OF THE INVENTION
  • The present invention relates generally to a display case including a fan system having deflectors that direct ambient air towards side walls of the display case to improve the discharge air velocity of the ambient air in a front corner area of the display case.
  • Refrigerated food and beverage display cases (or merchandisers) are commonly used in grocery stores or supermarkets to cool refrigerated products and present the products to customers in an appealing manner. A first fan system generates a first air curtain that cools the products in the display case. A second fan system generates a second air curtain that reduces the entrapment of ambient air in the display case.
  • Several display cases can be attached side by side. The second fan system is several inches shorter than the display case at each side to allow for case to case attachment. A drawback to prior display cases is that the flow of ambient air is restricted towards the side walls of the display case, reducing the supply and velocity of ambient air at both ends of the display case. The ratio of the primary discharge air velocity to the secondary discharge air velocity ratio should be maintained in an acceptable range along an entire length of the display case or weak spots can occur where the velocity ratio is not correct and local infiltration can occur. If the desired ratio is not maintained, condensation can form at top front corners of the interior display volume of the display case. For example, the secondary discharge air velocity of the ambient air directed towards the side walls of the display case could be 40 to 50% of the desired secondary discharge air velocity.
  • Hence, there is need in the art for a display case including a fan system having deflectors that direct ambient air towards side walls of the display case to improve the discharge air velocity of the ambient air in a front corner area of the display case and that overcomes the drawbacks and shortcomings of the prior art.
  • SUMMARY OF THE INVENTION
  • A display case or merchandiser cools and displays products. A first fan system located at a bottom of the display case circulates cool air through the display case. An evaporator coil cools the air, and the cooled air is directed upwardly through a rear duct along a rear of the display case. After traveling through an upper conduit at a top of the display case, the air is directly through a primary discharge grill and downwardly over a front of the display case to form a primary air curtain.
  • A second fan system circulates ambient air to generate a secondary air curtain. A fan draws ambient air into the secondary air system. The air flows through a space and is then directed through a conduit. The ambient air is directed through a secondary discharge grill and downwardly to form the secondary air curtain. The secondary air curtain is located between the primary air curtain and the outside environment, trapping the primary air curtain near an interior display volume of the display case.
  • Each end of the second fan system is several inches shorter than the display case to allow for case to case attachment. The second fan system includes a louver near each of the side walls and a front of the second fan system. Each louver includes a plurality of slanted panels. The louvers direct the ambient air towards the side walls of the display case to improve the secondary discharge air velocity in a front corner area of the display case.
  • These and other features of the present invention will be best understood from the following specification and drawings.
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • The various features and advantages of the invention will become apparent to those skilled in the art from the following detailed description of the currently preferred embodiment. The drawings that accompany the detailed description can be briefly described as follows:
  • FIG. 1 schematically illustrates a side view of a display case of the present invention;
  • FIG. 2 schematically illustrates a side view of a fan system of the display case;
  • FIG. 3 schematically illustrates a front view of the display case;
  • FIG. 4 schematically illustrates two display cases attached together;
  • FIG. 5 schematically illustrates an upper view of a louver; and
  • FIG. 6 schematically illustrates a side view of the louver.
  • DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
  • FIG. 1 illustrates a supermarket display case 10 or merchandiser. The display case 10 cools or refrigerates products 12 and presents the products 12 to customers in an appealing manner. The products 12 can be produce, dairy products, meat products, or any other refrigerated product. The display case 10 includes shelves 36 that hold the products 12.
  • The display case 10 includes a first fan system 14 that circulates cool air through the display case 10 to cool the products 12 to a desired temperature. The display case 10 includes a fan blade 84 and a fan motor 86 located in a lower section 16 of the display case 10 that draws air through a return grille 18. The air is forced through an evaporator coil 20 (part of a refrigeration system including a compressor, not shown) that cools the air to a desired temperature. The cooled air flows upwardly through a rear duct 22. Part of the air moving up the rear duct 22 also diffuses into an interior display volume 30 of the display case 10 through holes 38 in a rear duct panel 40 to help refrigerate the products 12.
  • The air then flows to a front 82 of the display case 10 through an upper conduit 24. The air flows through a perforated plate 34 and is discharged downwardly and vertically towards a floor 32 through a primary discharge grille 26 (such as a honeycomb) to form a primary air curtain 28. The primary air curtain 28 cools the products 12 in the display case 10, separating the interior display volume 30 from the ambient air external to the display case 10. The air then flows through the return grille 18, completing the air circulation cycle.
  • As further shown in FIG. 2, the display case 10 further includes a second fan system 42 located above a top 50 of the display case 10 that draws in ambient air and generates a secondary air curtain 48 that is discharged downwardly and vertically. A panel 68 separates the primary air curtain 28 from the secondary air curtain 48 in the second fan system 42. The temperature of the ambient air is greater than the temperature of the air cooled by the evaporator coil 20.
  • The secondary air curtain 48 flows next to the primary air curtain 28 at a desired velocity and/or at a different angle than the primary air curtain 28 to provide an optimized combined airflow and to improve the overall efficiency of the air curtain system of the display case 10. In one example, the primary air curtain 28 and the secondary air curtain 48 are separated by an angle of approximately 15 to 35°. The secondary air curtain 48 is located between the primary air curtain 28 and the outside environment, trapping the primary air curtain 28 near the interior display volume 30 of the display case 10. The secondary air curtain 48 reduces the entrapment of the higher temperature and higher humidity ambient air into the display case 10, reducing the load requirement because there is less heat and mass transfer into the display case 10.
  • A fan motor 44 and a fan blade 46 draw ambient air into the second fan system 42 through an opening 52. The ambient air travels through a space 54 along a path A above a panel 58. The air then flows though a conduit 56 along a path B below the panel 58 towards the front 82 of the display case 10. The air then flows through an opening 60 and into a space 62 along a path C. The air then travels through a perforated plate 64 and then discharges through a secondary discharge grille 66 (such as a honeycomb), forming the secondary air curtain 48.
  • FIG. 3 shows a front view of the display case 10 and the second fan system 42. The air drawn into the display case 10 through the opening 52 flows through the space 54 in a direction substantially into the page along the path A. In one example, the air flows entirely along a length Y of the second fan system 42. The air then flows through the conduit 56 in a direction substantially out of the page along the path B. In one example, the air flows along the entire length Y of the second fan system 42. Finally, the air flows downwardly and vertically along the path C.
  • The display case 10 has a length X extending between side walls 70. The second fan system 42 has the length Y that extends between side walls 72. The length Y of the second fan system 42 is shorter than the length X of the display case 10 by a length 2Z. That is, each side wall 72 of the second fan system 42 is spaced apart from each side wall 70 of the display case 10 by a length Z. In one example, the length X is 144 inches, the length Y is 136 inches, and the length Z is 4 inches. That is, each end wall 72 of the second fan system 42 is recessed from one of the side walls 70 of the display case 10 by 4 inches. Therefore, the air flowing along paths A, B and C is not directed towards the side walls 70 of the display case 10.
  • As shown in FIG. 4, two or more display cases 10 can be attached to form a display case lineup, allowing for a continuous product display that can be longer than the length X of the display case 10. There is no partition between the individual display cases 10, and therefore products 12 off similar usage or temperature can be displayed. The length Y of the second fan system 42 is shorter than the length X of the display case 10 to provide an access area 74 that allows display cases 10 to be connected. In one example, the display cases 10 are attached with a bolt 88 that passes through a bracket 92 in the side wall 70 of each the display case 10. In one example, the access area 74 is located at the top front area of the display case 10. The display cases 10 are attached at the top front area and in other areas to form a sealed connection. For example, the other areas can be a top back area and a bottom of the display cases 10.
  • Returning to FIG. 3, the panel 58 includes a deflector near each side wall 72 of the second fan system 42. In one example, the deflector is a louver 76. That is, each display case 10 includes two louvers 76. Each louver 76 is near a front 90 of the second fan system 42 and only extends partially along a depth W of the second fan system 42.
  • Each louver 76 allows some of the pressurized air in the space 54 to be directed toward one of the side walls 70 of the display case 10 downwardly and vertically along a path D, improving airflow at the side walls 70 of the display case 10. The louvers 76 direct a small portion of the ambient air of the second fan system 42 into a front corner area of the secondary discharge grille 66 and towards the side walls 70 of the display case 10. The airflow along the path D is directed generally under the access area 74. The secondary discharge air velocity at the side walls 70 of the display case 10 can be increased to a desired air velocity, resulting in a consistent primary air discharge velocity to secondary discharge air velocity ratio throughout the length X of the display case 10. Weak spots in the secondary air curtain 48 can be eliminated that could allow outside air to migrate into the display case 10 and form condensation inside a front corner area of the interior display volume 30 of the display case 10.
  • FIGS. 5 and 6 illustrate the louver 76. Each louver 76 includes a plurality of slanted panels 78 and openings 80 defined between each of the slanted panels 78. The slanted panels 78 are angled so that the ambient air is directed towards the side walls 70 of the display case 10. In one example, the louvers 76 are stamped in the panel 58.
  • The foregoing description is only exemplary of the principles of the invention. Many modifications and variations of the present invention are possible in light of the above teachings. The preferred embodiments of this invention have been disclosed, however, so that one of ordinary skill in the art would recognize that certain modifications would come within the scope of this invention. It is, therefore, to be understood that within the scope of the appended claims, the invention may be practiced otherwise than as specifically described. For that reason the following claims should be studied to determine the true scope and content of this invention.

Claims (19)

1. A refrigerated case comprising:
a display area having an interior compartment and side walls;
a first fan system that directs air along a front of the refrigerated case to form a first air curtain; and
a second fan system that directs ambient air along the front of the refrigerated case to form a second air curtain, wherein the first air curtain is between the interior compartment and the second air curtain, and the second fan system includes at least one deflector that directs at least some of the ambient air towards one of the side walls of the refrigerated case.
2. The refrigerated case as recited in claim 1 wherein the first fan system includes a first fan and a first motor located in a lower portion of the refrigerated case and an evaporator coil to cool the air.
3. The refrigerated case as recited in claim 1 wherein the air is directed downwardly to form the first air curtain.
4. The refrigerated case as recited in claim 1 wherein the second fan system is located above the interior compartment.
5. The refrigerated case as recited in claim 1 wherein the second fan system includes a second fan and a second motor, wherein the second fan draws the ambient air into the second fan system.
6. The refrigerated case as recited in claim 1 further including a panel, wherein the ambient air flows under the panel and is directed downwardly to form the second air curtain.
7. The refrigerated case as recited in claim 6 wherein the panel includes the at least one deflector.
8. The refrigerated case as recited in claim 6 wherein the at least one deflector includes two deflectors and the panel includes the two deflectors, wherein each of the two deflectors is located near the one of the side walls.
9. The refrigerated case as recited in claim 1 wherein the at least one deflector includes a plurality of slanted panels each separated by a slot that allow the ambient air to flow through the at least one deflector and towards the one of the side walls.
10. The refrigerated case as recited in claim 1 wherein the display area has a display area length and the second fan system has a fan length, and the display area length is greater than the fan length.
11. The refrigerated case as recited in claim 1 wherein the at least one deflector is located near the front of the refrigerated case.
12. The refrigerated case as recited in claim 1 wherein the at least one deflector extends only partially along a depth of the second fan system.
13. The refrigerated case as recited in claim 1 wherein the at least one deflector is at least one louver.
14. A refrigerated case comprising:
a display area having an interior compartment and side walls;
a first fan system that directs air along a front of the case to form a first air curtain, wherein the first fan system includes a first fan and a first motor located in a lower portion of the refrigerated case and an evaporator coil to cool the air; and
a second fan system that directs ambient air along the front of the case to form a second air curtain, wherein the second fan system includes a second fan and a second motor, wherein the second fan draws the ambient air into the second fan system, the first air curtain is between the interior compartment and the second air curtain, and the second fan system includes at least one deflector that directs at least some of the ambient air towards one of the side walls of the refrigerated case.
15. The refrigerated case as recited in claim 14 further including a panel, wherein the air is directed downwardly to form the first air curtain and the ambient air flows under the panel and is directed downwardly to form the second air curtain.
16. The refrigerated case as recited in claim 14 wherein the at least one deflector includes two deflectors and the panel includes the two deflectors, wherein each of the two deflectors is located near the one of the side walls.
17. The refrigerated case as recited in claim 14 wherein the at least one deflector includes a plurality of slanted panels each separated by a slot that allow the ambient air to flow through the at least one deflector and towards the one of the side walls.
18. The refrigerated case as recited in claim 14 wherein the at least one deflector is at least one louver.
19. A method of cooling a refrigerated case, the method comprising the steps of:
directing air along a front of the refrigerated case to form a first air curtain;
directing ambient air along the front of the refrigerated case to form a second air curtain, wherein the first air curtain is between an interior compartment and the second air curtain; and
directing at least some of the ambient air towards at least one side wall of the refrigerated case.
US12/374,406 2006-10-26 2006-10-26 Secondary airflow distribution for a display case Abandoned US20090205351A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/US2006/041708 WO2008051226A1 (en) 2006-10-26 2006-10-26 Secondary airflow distribution for a display case

Publications (1)

Publication Number Publication Date
US20090205351A1 true US20090205351A1 (en) 2009-08-20

Family

ID=39324880

Family Applications (1)

Application Number Title Priority Date Filing Date
US12/374,406 Abandoned US20090205351A1 (en) 2006-10-26 2006-10-26 Secondary airflow distribution for a display case

Country Status (3)

Country Link
US (1) US20090205351A1 (en)
CA (1) CA2659049A1 (en)
WO (1) WO2008051226A1 (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080209921A1 (en) * 2007-03-02 2008-09-04 Dover Systems, Inc. Refrigeration system
US20080282719A1 (en) * 2005-12-07 2008-11-20 Fung Kwok K Airflow Stabilizer for Lower Front of a Rear Loaded Refrigerated Display Case
US20090084125A1 (en) * 2007-09-28 2009-04-02 Carrier Corporation Refrigerated merchandiser system
US20090215381A1 (en) * 2005-04-25 2009-08-27 Delaware Capital Formation ,Inc. Air curtain system for a refrigerated case
US20100058789A1 (en) * 2008-09-11 2010-03-11 Hill Phoenix, Inc Air distribution system for temperature-controlled case
US20100184365A1 (en) * 2009-01-21 2010-07-22 Flowair Glogowski I Brzezinski Sp.J. Air curtain with a main air stream and an auxiliary air stream, and a device and method for producing the same
US20100212343A1 (en) * 2006-06-20 2010-08-26 Hill Phoenix, Inc. Refrigerated case with low frost operation
US20100313588A1 (en) * 2009-06-10 2010-12-16 Hill Phoenix, Inc Air distribution system for temperature-controlled case
WO2016118820A1 (en) * 2015-01-22 2016-07-28 Garrick Mcfarland Refrigerated storage system
US9737156B2 (en) 2013-12-23 2017-08-22 Hussmann Corporation Zone cooling in a refrigerated merchandiser
US20170258247A1 (en) * 2013-04-08 2017-09-14 Heatcraft Refrigeration Products Llc Deflector for Display Cases
US20170280896A1 (en) * 2016-03-31 2017-10-05 Panasonic Intellectual Property Management Co., Ltd. Showcase and operation method thereof

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006039043A1 (en) 2004-09-30 2006-04-13 Carrier Corporation Curtain air admission assembly
CN104905604A (en) * 2015-06-29 2015-09-16 北京志翔领驭冷链科技有限公司 Refrigerator displaying and refrigerating articles

Citations (76)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3256799A (en) * 1963-12-09 1966-06-21 Dual Jet Refrigeration Company Nozzle construction for refrigerated cabinets
US3270655A (en) * 1964-03-25 1966-09-06 Howard P Guirl Air curtain door seal
US3304736A (en) * 1965-08-06 1967-02-21 Emhart Corp Refrigerated display case
US3771323A (en) * 1972-05-17 1973-11-13 Dualjet Corp Refrigerated reach-in display compartment
US3937033A (en) * 1975-02-07 1976-02-10 Kysor Industrial Corporation Air defrost display case
US4269037A (en) * 1979-07-03 1981-05-26 Masashi Karashima Refrigerated show case
US4750335A (en) * 1987-06-03 1988-06-14 Hill Refrigeration Corporation Anti-condensation means for glass front display cases
US4765150A (en) * 1987-02-09 1988-08-23 Margaux Controls, Inc. Continuously variable capacity refrigeration system
US4938034A (en) * 1989-05-03 1990-07-03 Hill Refrigeration Corporation Opened front refrigerated display case
US5009080A (en) * 1989-02-16 1991-04-23 Sanyo Electric Co., Ltd. Low-temperature show case
USRE33620E (en) * 1987-02-09 1991-06-25 Margaux, Inc. Continuously variable capacity refrigeration system
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
US5228581A (en) * 1991-09-12 1993-07-20 Hill Refrigeration Division, Falcon Manufacturing Inc. Solid state shelf means for transforming an open wire shelf into a solid support within a refrigerated display case
US5357767A (en) * 1993-05-07 1994-10-25 Hussmann Corporation Low temperature display merchandiser
US5475987A (en) * 1994-11-17 1995-12-19 Delaware Medical Formation, Inc. Refrigerated display case apparatus with enhanced airflow and improved insulation construction
US5475988A (en) * 1994-11-17 1995-12-19 Delaware Capital Formation Inc. Refrigerated display case with an improved air flow control and a contaminant control apparatus
US5606863A (en) * 1995-07-17 1997-03-04 Kysor Industrial Corporation Glass front, anti-condensation refrigerated display
US5644831A (en) * 1994-11-17 1997-07-08 Delaware Capitol Formation Inc. Method for construction of a universal modular apparatus for selectively forming curved concave and convex sections of a refrigerated display case
US5675983A (en) * 1996-09-11 1997-10-14 Kysor Industrial Corporation Synergistic refrigerated display case
US5755108A (en) * 1996-12-03 1998-05-26 Kysor Industrial Corporation Wedge type refrigerated display case
US5924297A (en) * 1997-11-03 1999-07-20 Hussmann Corporation Refrigerated merchandiser with modular evaporator coils and "no defrost" product area
US6094925A (en) * 1999-01-29 2000-08-01 Delaware Capital Formation, Inc. Crossover warm liquid defrost refrigeration system
US6151904A (en) * 1999-03-05 2000-11-28 Kysor Industrial Corporation Air-jet system for anti-sweating on display glass surface
US6170270B1 (en) * 1999-01-29 2001-01-09 Delaware Capital Formation, Inc. Refrigeration system using liquid-to-liquid heat transfer for warm liquid defrost
US6185951B1 (en) * 1999-07-06 2001-02-13 In-Store Products Ltd. Temperature controlled case
US20010042383A1 (en) * 2000-05-18 2001-11-22 Chiang Robert Hong Leung Refrigerated merchandiser with flow baffle
US20010042384A1 (en) * 2000-05-18 2001-11-22 Chiang Robert Hong Leung Refrigerated merchandiser with transverse fan
US6360548B1 (en) * 1998-06-12 2002-03-26 Ramon Munoz Navarro Open-fronted, refrigerated showcase with dual evaporators and dissipater pans
US6381976B1 (en) * 2001-04-27 2002-05-07 Carrier Corporation Wedge shaped refrigerated display case
US6405548B1 (en) * 2000-08-11 2002-06-18 General Electric Company Method and apparatus for adjusting temperature using air flow
US6431060B1 (en) * 2002-02-01 2002-08-13 Carrier Corporation Container for cooling perishable goods
US6467294B1 (en) * 2001-05-04 2002-10-22 The Delfield Company Apparatus and method for controlling temperature for a self-service food display
US20020162346A1 (en) * 2001-05-04 2002-11-07 Chiang Robert Hong Leung Medium temperature refrigerated merchandiser
US20020184904A1 (en) * 2001-06-07 2002-12-12 Wellman Keith E. Enclosable evaporator/defroster unit for a refrigerated display case
US6519962B1 (en) * 2002-06-27 2003-02-18 Carrier Corporation Refrigerated merchandiser angular air guide vanes
US6539741B2 (en) * 1998-06-12 2003-04-01 Ramon Munoz Navarro Air curtain for open-fronted refrigerated showcase
US20030159451A1 (en) * 2002-02-26 2003-08-28 Nash Robert V. Variable air curtain velocity control
US6615593B2 (en) * 2001-11-02 2003-09-09 Matt Alvin Thurman Methods of reducing energy and maintenance costs associated with a refrigeration system
US6694757B1 (en) * 2002-02-21 2004-02-24 Thomas J. Backman Multiple stage dehumidification and cooling system
US6708511B2 (en) * 2002-08-13 2004-03-23 Delaware Capital Formation, Inc. Cooling device with subcooling system
US20040055321A1 (en) * 2002-09-25 2004-03-25 Kempiak Michael J. Rear load refrigerated display case
US6722149B1 (en) * 2003-01-07 2004-04-20 Carrier Commercial Refrigeration, Inc. Refrigerated display merchandiser
US6742344B2 (en) * 2000-06-26 2004-06-01 Svein Henrik Vormedal Shelved cupboard for refrigerated goods and method of controlled/regulated circulation of air in the shelved cupboard
US6745588B2 (en) * 2002-06-18 2004-06-08 Delaware Capital Formation, Inc. Display device
US6827463B2 (en) * 2002-10-02 2004-12-07 Carrier Commercial Refrigeration, Inc. Rear lighting with reflective shelf surfaces for supermarket display case
US20040244396A1 (en) * 2001-08-22 2004-12-09 Delaware Capital Formation, Inc. Service case
US6851271B2 (en) * 2002-04-30 2005-02-08 Carrier Commercial Refrigeration Refrigerated merchandiser with foul-resistant condenser
US20050039483A1 (en) * 2003-08-20 2005-02-24 Carrier-Lg Co., Ltd. Refrigerator
US6883343B2 (en) * 2001-08-22 2005-04-26 Delaware Capital Formation, Inc. Service case
US6889518B2 (en) * 2001-08-22 2005-05-10 Delaware Capital Formation, Inc. Service case
US20050126196A1 (en) * 2003-12-15 2005-06-16 Hussmann Corporation Modular refrigeration system
US20050132744A1 (en) * 2003-12-22 2005-06-23 Hussmann Corporation Flat-tube evaporator with micro-distributor
US20050138943A1 (en) * 2003-01-07 2005-06-30 Carrier Commercial Refrigeration, Inc. Multi-band air curtain separation barrier
US6912864B2 (en) * 2003-10-10 2005-07-05 Hussmann Corporation Evaporator for refrigerated merchandisers
US20050193755A1 (en) * 2004-03-03 2005-09-08 Hussmann Corporation Refrigerated merchandiser with access for cleaning
US6959560B2 (en) * 2002-11-06 2005-11-01 Carrier Commercial Refrigeration, Inc. Baffled air flow system for peg bar refrigerated merchandiser
US6981385B2 (en) * 2001-08-22 2006-01-03 Delaware Capital Formation, Inc. Refrigeration system
US20060042288A1 (en) * 2004-08-24 2006-03-02 Hussmann Corporation Refrigerated merchandiser with fan-powered rear discharge
US7036947B2 (en) * 2002-10-02 2006-05-02 Carrier Commercial Refrigeration, Inc. Refrigeration system having rear light source with reflector
US7065979B2 (en) * 2002-10-30 2006-06-27 Delaware Capital Formation, Inc. Refrigeration system
US7121104B2 (en) * 2004-09-23 2006-10-17 Delaware Capital Formation, Inc. Adjustable shelf system for refrigerated case
US20060242980A1 (en) * 2005-04-29 2006-11-02 Hussmann Corporation Assembly method for a refrigerated display case
US7159413B2 (en) * 2003-10-21 2007-01-09 Delaware Capital Formation, Inc. Modular refrigeration system
US20070006604A1 (en) * 2005-07-07 2007-01-11 Behr John A Method of control for a refrigerated merchandiser
US7216500B2 (en) * 2003-09-25 2007-05-15 Dover Systems, Inc. Refrigerated worksurface
US7275376B2 (en) * 2005-04-28 2007-10-02 Dover Systems, Inc. Defrost system for a refrigeration device
US20070289323A1 (en) * 2006-06-20 2007-12-20 Delaware Capital Formation, Inc. Refrigerated case with low frost operation
US7357000B2 (en) * 2003-12-05 2008-04-15 Dover Systems, Inc. Display deck for a temperature controlled case
US20080271473A1 (en) * 2005-11-28 2008-11-06 Carrier Commercial Refrigeration, Inc. Refrigerated Case
US20080282719A1 (en) * 2005-12-07 2008-11-20 Fung Kwok K Airflow Stabilizer for Lower Front of a Rear Loaded Refrigerated Display Case
US20090044553A1 (en) * 2007-07-06 2009-02-19 Keith Tilley System and method for distributing air within a display case
US7497770B2 (en) * 2005-02-16 2009-03-03 Hussmann Corporation Air louver for a refrigerated display case
US20090084125A1 (en) * 2007-09-28 2009-04-02 Carrier Corporation Refrigerated merchandiser system
US20090215381A1 (en) * 2005-04-25 2009-08-27 Delaware Capital Formation ,Inc. Air curtain system for a refrigerated case
US20100058789A1 (en) * 2008-09-11 2010-03-11 Hill Phoenix, Inc Air distribution system for temperature-controlled case
US20100212343A1 (en) * 2006-06-20 2010-08-26 Hill Phoenix, Inc. Refrigerated case with low frost operation

Patent Citations (84)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3256799A (en) * 1963-12-09 1966-06-21 Dual Jet Refrigeration Company Nozzle construction for refrigerated cabinets
US3270655A (en) * 1964-03-25 1966-09-06 Howard P Guirl Air curtain door seal
US3304736A (en) * 1965-08-06 1967-02-21 Emhart Corp Refrigerated display case
US3771323A (en) * 1972-05-17 1973-11-13 Dualjet Corp Refrigerated reach-in display compartment
US3937033A (en) * 1975-02-07 1976-02-10 Kysor Industrial Corporation Air defrost display case
US4269037A (en) * 1979-07-03 1981-05-26 Masashi Karashima Refrigerated show case
US4765150A (en) * 1987-02-09 1988-08-23 Margaux Controls, Inc. Continuously variable capacity refrigeration system
USRE33620E (en) * 1987-02-09 1991-06-25 Margaux, Inc. Continuously variable capacity refrigeration system
US4750335A (en) * 1987-06-03 1988-06-14 Hill Refrigeration Corporation Anti-condensation means for glass front display cases
US5009080A (en) * 1989-02-16 1991-04-23 Sanyo Electric Co., Ltd. Low-temperature show case
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
US5228581A (en) * 1991-09-12 1993-07-20 Hill Refrigeration Division, Falcon Manufacturing Inc. Solid state shelf means for transforming an open wire shelf into a solid support within a refrigerated display case
US5357767A (en) * 1993-05-07 1994-10-25 Hussmann Corporation Low temperature display merchandiser
US5475987A (en) * 1994-11-17 1995-12-19 Delaware Medical Formation, Inc. Refrigerated display case apparatus with enhanced airflow and improved insulation construction
US5475988A (en) * 1994-11-17 1995-12-19 Delaware Capital Formation Inc. Refrigerated display case with an improved air flow control and a contaminant control apparatus
US5644831A (en) * 1994-11-17 1997-07-08 Delaware Capitol Formation Inc. Method for construction of a universal modular apparatus for selectively forming curved concave and convex sections of a refrigerated display case
US5606863A (en) * 1995-07-17 1997-03-04 Kysor Industrial Corporation Glass front, anti-condensation refrigerated display
US5675983A (en) * 1996-09-11 1997-10-14 Kysor Industrial Corporation Synergistic refrigerated display case
US5755108A (en) * 1996-12-03 1998-05-26 Kysor Industrial Corporation Wedge type refrigerated display case
US5924297A (en) * 1997-11-03 1999-07-20 Hussmann Corporation Refrigerated merchandiser with modular evaporator coils and "no defrost" product area
US6360548B1 (en) * 1998-06-12 2002-03-26 Ramon Munoz Navarro Open-fronted, refrigerated showcase with dual evaporators and dissipater pans
US6539741B2 (en) * 1998-06-12 2003-04-01 Ramon Munoz Navarro Air curtain for open-fronted refrigerated showcase
US6170270B1 (en) * 1999-01-29 2001-01-09 Delaware Capital Formation, Inc. Refrigeration system using liquid-to-liquid heat transfer for warm liquid defrost
US6094925A (en) * 1999-01-29 2000-08-01 Delaware Capital Formation, Inc. Crossover warm liquid defrost refrigeration system
US6151904A (en) * 1999-03-05 2000-11-28 Kysor Industrial Corporation Air-jet system for anti-sweating on display glass surface
US6185951B1 (en) * 1999-07-06 2001-02-13 In-Store Products Ltd. Temperature controlled case
US20010042384A1 (en) * 2000-05-18 2001-11-22 Chiang Robert Hong Leung Refrigerated merchandiser with transverse fan
US6955061B2 (en) * 2000-05-18 2005-10-18 Carrier Corporation Refrigerated merchandiser with flow baffle
US20010042383A1 (en) * 2000-05-18 2001-11-22 Chiang Robert Hong Leung Refrigerated merchandiser with flow baffle
US6742344B2 (en) * 2000-06-26 2004-06-01 Svein Henrik Vormedal Shelved cupboard for refrigerated goods and method of controlled/regulated circulation of air in the shelved cupboard
US6405548B1 (en) * 2000-08-11 2002-06-18 General Electric Company Method and apparatus for adjusting temperature using air flow
US6381976B1 (en) * 2001-04-27 2002-05-07 Carrier Corporation Wedge shaped refrigerated display case
US6467294B1 (en) * 2001-05-04 2002-10-22 The Delfield Company Apparatus and method for controlling temperature for a self-service food display
US20020162346A1 (en) * 2001-05-04 2002-11-07 Chiang Robert Hong Leung Medium temperature refrigerated merchandiser
US20020184904A1 (en) * 2001-06-07 2002-12-12 Wellman Keith E. Enclosable evaporator/defroster unit for a refrigerated display case
US6981385B2 (en) * 2001-08-22 2006-01-03 Delaware Capital Formation, Inc. Refrigeration system
US6889514B2 (en) * 2001-08-22 2005-05-10 Delaware Capital Formation, Inc. Service case
US6889518B2 (en) * 2001-08-22 2005-05-10 Delaware Capital Formation, Inc. Service case
US6883343B2 (en) * 2001-08-22 2005-04-26 Delaware Capital Formation, Inc. Service case
US20040244396A1 (en) * 2001-08-22 2004-12-09 Delaware Capital Formation, Inc. Service case
US6915652B2 (en) * 2001-08-22 2005-07-12 Delaware Capital Formation, Inc. Service case
US6615593B2 (en) * 2001-11-02 2003-09-09 Matt Alvin Thurman Methods of reducing energy and maintenance costs associated with a refrigeration system
US6431060B1 (en) * 2002-02-01 2002-08-13 Carrier Corporation Container for cooling perishable goods
US6694757B1 (en) * 2002-02-21 2004-02-24 Thomas J. Backman Multiple stage dehumidification and cooling system
US20030159451A1 (en) * 2002-02-26 2003-08-28 Nash Robert V. Variable air curtain velocity control
US20050150241A1 (en) * 2002-04-30 2005-07-14 Carrier Commercial Refrigeration, Inc. Refrigerated merchandiser with foul-resistant condenser
US6851271B2 (en) * 2002-04-30 2005-02-08 Carrier Commercial Refrigeration Refrigerated merchandiser with foul-resistant condenser
US20050144966A1 (en) * 2002-04-30 2005-07-07 Carrier Commercial Refrigeration, Inc. Refrigerated merchandiser with foul-resistant condenser
US6745588B2 (en) * 2002-06-18 2004-06-08 Delaware Capital Formation, Inc. Display device
US6519962B1 (en) * 2002-06-27 2003-02-18 Carrier Corporation Refrigerated merchandiser angular air guide vanes
US6708511B2 (en) * 2002-08-13 2004-03-23 Delaware Capital Formation, Inc. Cooling device with subcooling system
US20040055321A1 (en) * 2002-09-25 2004-03-25 Kempiak Michael J. Rear load refrigerated display case
US7010924B2 (en) * 2002-09-25 2006-03-14 Carrier Commercial Refrigeration Rear load refrigerated display case
US7036947B2 (en) * 2002-10-02 2006-05-02 Carrier Commercial Refrigeration, Inc. Refrigeration system having rear light source with reflector
US6827463B2 (en) * 2002-10-02 2004-12-07 Carrier Commercial Refrigeration, Inc. Rear lighting with reflective shelf surfaces for supermarket display case
US7065979B2 (en) * 2002-10-30 2006-06-27 Delaware Capital Formation, Inc. Refrigeration system
US6959560B2 (en) * 2002-11-06 2005-11-01 Carrier Commercial Refrigeration, Inc. Baffled air flow system for peg bar refrigerated merchandiser
US20050138943A1 (en) * 2003-01-07 2005-06-30 Carrier Commercial Refrigeration, Inc. Multi-band air curtain separation barrier
US6722149B1 (en) * 2003-01-07 2004-04-20 Carrier Commercial Refrigeration, Inc. Refrigerated display merchandiser
US20050039483A1 (en) * 2003-08-20 2005-02-24 Carrier-Lg Co., Ltd. Refrigerator
US7216500B2 (en) * 2003-09-25 2007-05-15 Dover Systems, Inc. Refrigerated worksurface
US6912864B2 (en) * 2003-10-10 2005-07-05 Hussmann Corporation Evaporator for refrigerated merchandisers
US7159413B2 (en) * 2003-10-21 2007-01-09 Delaware Capital Formation, Inc. Modular refrigeration system
US7357000B2 (en) * 2003-12-05 2008-04-15 Dover Systems, Inc. Display deck for a temperature controlled case
US20050126196A1 (en) * 2003-12-15 2005-06-16 Hussmann Corporation Modular refrigeration system
US20050132744A1 (en) * 2003-12-22 2005-06-23 Hussmann Corporation Flat-tube evaporator with micro-distributor
US20050193755A1 (en) * 2004-03-03 2005-09-08 Hussmann Corporation Refrigerated merchandiser with access for cleaning
US6993925B2 (en) * 2004-03-03 2006-02-07 Hussmann Corporation Refrigerated merchandiser with access for cleaning
US20060042288A1 (en) * 2004-08-24 2006-03-02 Hussmann Corporation Refrigerated merchandiser with fan-powered rear discharge
US7121104B2 (en) * 2004-09-23 2006-10-17 Delaware Capital Formation, Inc. Adjustable shelf system for refrigerated case
US7497770B2 (en) * 2005-02-16 2009-03-03 Hussmann Corporation Air louver for a refrigerated display case
US20090223237A1 (en) * 2005-02-16 2009-09-10 Hussmann Corporation Air louver for refrigerated display case
US20090215381A1 (en) * 2005-04-25 2009-08-27 Delaware Capital Formation ,Inc. Air curtain system for a refrigerated case
US7275376B2 (en) * 2005-04-28 2007-10-02 Dover Systems, Inc. Defrost system for a refrigeration device
US20060242980A1 (en) * 2005-04-29 2006-11-02 Hussmann Corporation Assembly method for a refrigerated display case
US20070006604A1 (en) * 2005-07-07 2007-01-11 Behr John A Method of control for a refrigerated merchandiser
US20080271473A1 (en) * 2005-11-28 2008-11-06 Carrier Commercial Refrigeration, Inc. Refrigerated Case
US20080282719A1 (en) * 2005-12-07 2008-11-20 Fung Kwok K Airflow Stabilizer for Lower Front of a Rear Loaded Refrigerated Display Case
US20070289323A1 (en) * 2006-06-20 2007-12-20 Delaware Capital Formation, Inc. Refrigerated case with low frost operation
US20100212343A1 (en) * 2006-06-20 2010-08-26 Hill Phoenix, Inc. Refrigerated case with low frost operation
US20090044553A1 (en) * 2007-07-06 2009-02-19 Keith Tilley System and method for distributing air within a display case
US20090084125A1 (en) * 2007-09-28 2009-04-02 Carrier Corporation Refrigerated merchandiser system
US20100058789A1 (en) * 2008-09-11 2010-03-11 Hill Phoenix, Inc Air distribution system for temperature-controlled case

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090215381A1 (en) * 2005-04-25 2009-08-27 Delaware Capital Formation ,Inc. Air curtain system for a refrigerated case
US8647183B2 (en) 2005-04-25 2014-02-11 Hill Phoenix, Inc. Air curtain system for a refrigerated case
US20080282719A1 (en) * 2005-12-07 2008-11-20 Fung Kwok K Airflow Stabilizer for Lower Front of a Rear Loaded Refrigerated Display Case
US20100212343A1 (en) * 2006-06-20 2010-08-26 Hill Phoenix, Inc. Refrigerated case with low frost operation
US8973385B2 (en) 2007-03-02 2015-03-10 Hill Phoenix, Inc. Refrigeration system
US20080209921A1 (en) * 2007-03-02 2008-09-04 Dover Systems, Inc. Refrigeration system
US20090084125A1 (en) * 2007-09-28 2009-04-02 Carrier Corporation Refrigerated merchandiser system
US9526354B2 (en) 2008-09-11 2016-12-27 Hill Phoenix, Inc. Air distribution system for temperature-controlled case
US20100058789A1 (en) * 2008-09-11 2010-03-11 Hill Phoenix, Inc Air distribution system for temperature-controlled case
US20100184365A1 (en) * 2009-01-21 2010-07-22 Flowair Glogowski I Brzezinski Sp.J. Air curtain with a main air stream and an auxiliary air stream, and a device and method for producing the same
US20100313588A1 (en) * 2009-06-10 2010-12-16 Hill Phoenix, Inc Air distribution system for temperature-controlled case
US8863541B2 (en) 2009-06-10 2014-10-21 Hill Phoenix, Inc. Air distribution system for temperature-controlled case
US20170258247A1 (en) * 2013-04-08 2017-09-14 Heatcraft Refrigeration Products Llc Deflector for Display Cases
US10383459B2 (en) * 2013-04-08 2019-08-20 Kysor Warren Epta Us Corporation Deflector for display cases
US9737156B2 (en) 2013-12-23 2017-08-22 Hussmann Corporation Zone cooling in a refrigerated merchandiser
WO2016118820A1 (en) * 2015-01-22 2016-07-28 Garrick Mcfarland Refrigerated storage system
US20170280896A1 (en) * 2016-03-31 2017-10-05 Panasonic Intellectual Property Management Co., Ltd. Showcase and operation method thereof

Also Published As

Publication number Publication date
CA2659049A1 (en) 2008-05-02
WO2008051226A1 (en) 2008-05-02

Similar Documents

Publication Publication Date Title
US3369375A (en) Refrigerated display case
US3229475A (en) Refrigerated display case
US6912864B2 (en) Evaporator for refrigerated merchandisers
US5345778A (en) Low temperature display merchandiser
US5417079A (en) Modular refrigeration apparatus
US2962875A (en) Upright refrigerated cabinet with unimpeded front access
US3501925A (en) Refrigerated equipment
US3125864A (en) Self-service refrigerated display case
US5606863A (en) Glass front, anti-condensation refrigerated display
JP4029062B2 (en) Refrigeration equipment
US3696630A (en) Humidified and refrigerated showcase
US3759059A (en) Refrigerated display cabinet
US2984085A (en) Walk-in cooler apparatus
DE602004000908T2 (en) refrigerated
BG100417A (en) Show window cabinet for goods
US3304740A (en) Open front display case
US7062932B2 (en) Refrigerated merchandiser with fan-powered rear discharge
US20060207278A1 (en) Modular refrigeration cassette with condensate evaporative tray
NZ550273A (en) A refrigerated merchandiser with a condenser coil using microchannel tubing
US3091942A (en) Food merchandiser
WO2006115824A2 (en) Air curtain system for a refrigerated case
US3324783A (en) Air directing grid construction
CN101087547A (en) Multi-band air curtain separation barrier
JP2004271118A (en) Showcase
JP2013523238A (en) Improved refrigerated display device

Legal Events

Date Code Title Description
AS Assignment

Owner name: CARRIER CORPORATION, CONNECTICUT

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:FUNG, KWOK KWONG;REEL/FRAME:022126/0979

Effective date: 20061025

AS Assignment

Owner name: HILL PHOENIX, INC., GEORGIA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:CARRIER COMMERCIAL REFRIGERATION, INC.;CARRIER CORPORATION;REEL/FRAME:022659/0634

Effective date: 20090507

Owner name: HILL PHOENIX, INC.,GEORGIA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:CARRIER COMMERCIAL REFRIGERATION, INC.;CARRIER CORPORATION;REEL/FRAME:022659/0634

Effective date: 20090507

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION