US20150374141A1 - Open Refrigerated Display Case and a Flow Stabilizing Device - Google Patents

Open Refrigerated Display Case and a Flow Stabilizing Device Download PDF

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Publication number
US20150374141A1
US20150374141A1 US14/702,249 US201514702249A US2015374141A1 US 20150374141 A1 US20150374141 A1 US 20150374141A1 US 201514702249 A US201514702249 A US 201514702249A US 2015374141 A1 US2015374141 A1 US 2015374141A1
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United States
Prior art keywords
stabilizing
flow
air
display case
refrigerated display
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
US14/702,249
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English (en)
Inventor
Nicholas J.P. Wirth
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.)
Wirth Research Ltd
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Wirth Research Ltd
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
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Assigned to WIRTH RESEARCH LIMITED reassignment WIRTH RESEARCH LIMITED ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: WIRTH, Nicholas J.P.
Priority to US14/840,727 priority Critical patent/US9370262B2/en
Publication of US20150374141A1 publication Critical patent/US20150374141A1/en
Abandoned legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F25D23/02—Doors; Covers
    • F25D23/023—Air curtain closures
    • 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
    • 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
    • A47F3/0469—Details, e.g. night covers
    • 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
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
    • 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
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
    • F25D17/08—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation using ducts
    • 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
    • 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
    • A47F2003/046—Cases or cabinets of the open type with forced air circulation with shelves having air ducts

Definitions

  • the invention relates to an open refrigerated display case and a flow stabilizing device for an open refrigerated display case.
  • ORDCs Open Refrigerated Display Cases
  • ORDCs utilize an air curtain which is cooled to below ambient temperature and propelled downward, across the open front of the display case.
  • the air curtain separates the refrigerated interior of the display case from the ambient air surrounding the display case.
  • the air curtain thus keeps the cool air inside the display case from spilling out due to buoyancy effects, and also provides a barrier from other external motions of air around the display case.
  • ORDCs therefore do not need any physical barrier separating customers from the contents of the display case. Accordingly, ORDCs provide a desirable method of displaying food and other perishable goods as they allow both easy access and clear visibility of merchandise.
  • ORDCs do have significantly higher energy consumption compared to the closed-fronted alternative.
  • the main energy losses occur within the air curtain, and are caused by the entrainment of warm ambient air into the air curtain and the turbulent mixing which occurs within the air curtain itself.
  • the entrainment of warm ambient air causes an increase in temperature within the air curtain, and this warmer air must be cooled as it re-circulates through the system. It has been estimated that 70% to 80% of the cooling load of an ORDC is due to such effects.
  • the invention thus seeks to improve the efficiency of ORDCs by reducing entrainment within the air curtain.
  • an open refrigerated display case comprising: a refrigerated display area comprising one or more shelves; an air outlet and an air inlet opening into the display area and spaced from one another; a duct fluidically coupling the air inlet to the air outlet, the duct being configured to direct air flow out of the air outlet across the display area and toward the air inlet to form an air curtain across the display area; wherein each of the one or more shelves are provided with an associated flow stabilizing device disposed; wherein each flow stabilizing device comprises a pair of stabilizing beams which are spaced from one another so as to define an innermost stabilizing beam and an outermost stabilizing beam; wherein a first slot is formed between the innermost and the outermost stabilizing beams, the first slot extending transversely across the display area perpendicular to the direction of the air flow within the air curtain, the first slot having a stabilizing inlet, a stabilizing outlet and a stabilizing throat disposed therebetween; wherein the innermost stabilizing beam is
  • the stabilizing inlet may be wider than the stabilizing outlet and the stabilizing throat may converge from the stabilizing inlet to the stabilizing outlet.
  • the stabilizing throat may converge at greater than 0° and less than 20°.
  • the flow stabilizing devices may be spaced from the air outlet and/or one another by a distance which corresponds to approximately 4 to 6 times a width of the air outlet.
  • the flow stabilizing devices may be spaced by a distance which corresponds to approximately 5 times a width of the air outlet.
  • Each flow stabilizing device may be connected to the one or more shelves.
  • Each flow stabilizing device may be pivotably connected to the one or more shelves.
  • Each flow stabilizing device may be configured so as to allow a distance between the shelf and the stabilizing inlet of the first slot to be varied.
  • the flow stabilizing device may further comprise a pair of arms which connect the stabilizing beams to the open refrigerated display case.
  • the stabilizing beams may be transparent.
  • the outermost stabilizing beam may be provided with a product information strip.
  • the open refrigerated display case may further comprise an injector port which is configured to introduce additional air into the air curtain.
  • the injector port may be connected to the duct.
  • a flow stabilizing device for stabilizing an air curtain of an open refrigerated display case, the flow stabilizing device comprising: a pair of stabilizing beams which are spaced from one another so as to define an innermost stabilizing beam and an outermost stabilizing beam; wherein a first slot is formed between the innermost and the outmost stabilizing beams, the first slot having a stabilizing inlet, a stabilizing outlet and a stabilizing throat disposed therebetween; wherein the flow stabilizing device is configured to be positioned so that: a second slot is formed between the innermost stabilizing beam and an adjacent shelf of the open refrigerated display case; and the stabilizing inlet of the first slot receives the air curtain, the stabilizing throat being configured to stabilize the air flow within the air curtain which exits the flow stabilizing device via the stabilizing outlet.
  • the stabilizing inlet may be wider than the stabilizing outlet and the stabilizing throat may converge from the stabilizing inlet to the stabilizing outlet.
  • the stabilizing throat may converge at greater than 0° and less than 20°.
  • the flow stabilizing device may be configured to be connected to a shelf of the open refrigerated display case.
  • the flow stabilizing device may be configured to be pivotably connected to the shelf.
  • the flow stabilizing device may be configured so as to allow a distance between the shelf and the stabilizing inlet to be varied.
  • the flow stabilizing device may further comprise a pair of arms which are configured to connect the stabilizing beams to the open refrigerated display case.
  • the stabilizing beams may be transparent.
  • the outermost stabilizing beam may be provided with a product information strip.
  • the flow stabilizing device may further comprise an injector port which is configured to introduce additional air into the air curtain.
  • FIG. 1 is a side cross-sectional view of a conventional open refrigerated display case (ORDC);
  • FIG. 2 is a perspective view of a shelf having a flow stabilizing device according to an embodiment of the invention
  • FIG. 3 is a side cross-section view of an ORDC according to an embodiment of the invention having a plurality of shelves with flow stabilizing devices as shown in FIG. 2 ;
  • FIG. 4 schematically shows air flow from the conventional ORDC of FIGS. 1 ;
  • FIG. 5 schematically shows air flow from the ORDC of FIG. 3 .
  • FIG. 1 shows a conventional ORDC 2 .
  • the ORDC 2 comprises a cabinet portion formed by a lower wall 4 , a back wall 6 , an upper wall 8 , and left and right side walls (not shown).
  • a lower panel 10 , a back panel 12 and an upper panel 14 are disposed within the cabinet portion.
  • the lower, back and upper panels 10 , 12 , 14 form a display area 15 which is provided with a plurality of shelves 17 (six are shown) on which items may be displayed.
  • the shelves 17 are affixed to the back panel 12 .
  • the lower, back and upper panels 10 , 12 , 14 are spaced from the respective lower, back and upper walls 4 , 6 , 8 to form a duct 16 .
  • An intake grille 18 is provided at the lower panel 10 to form an inlet to the duct 16 .
  • a discharge grille 20 is provided at the upper panel 14 to form an outlet from the duct 16 .
  • the intake grille 18 and the discharge grille 20 are thus fluidically coupled to one another by the duct 16 .
  • the intake grille 18 and the discharge grille 20 are spaced from the back panel 12 toward the front of the cabinet portion and ahead of the shelves 17 .
  • a fan 22 and a heat exchanger 24 are located within the duct 16 adjacent to the intake grille 18 and thus are disposed between the lower wall 4 and the lower panel 10 .
  • the fan 22 draws air into the duct 16 via the intake grille 18 which then passes through the heat exchanger 24 where it is cooled to well below the ambient temperature.
  • the air After passing through the heat exchanger 24 , the air continues through the duct 16 between the back wall 6 and the back panel 12 .
  • the back panel 12 is perforated allowing air to pass from the duct 16 into the display area 15 where it cools items located on the shelves 17 and on the lower panel 10 .
  • the remaining air flows through the duct 16 to the discharge grille 20 .
  • the air is ejected from the discharge grille 20 and descends over the open front of the display area 15 to form an air curtain 26 .
  • the air curtain 26 passes from the discharge grille 20 to the intake grille 18 , where it is drawn in by the fan 22 and re-circulated through the duct 16 .
  • the air curtain 26 thus forms a non-physical barrier which separates the display area 15 from the ambient air surrounding the ORDC 2 .
  • the air curtain 26 may be angled away from vertical by around 5-10°. This may be achieved by angling the discharge grille 20 .
  • the discharge grille 20 may be provided with a honeycomb panel (not shown) which rectifies the air flow as it exits the discharge grille 20 to provide laminar flow.
  • the air curtain 26 may also deviate away from the back panel 12 as a result of the air passing through the perforations in the back panel 12 .
  • the intake grille 18 is therefore offset from the discharge grille 20 to allow for this.
  • FIG. 2 shows a flow stabilizing device 28 according to an embodiment of the invention which is fitted to one of the shelves 17 of the ORDC 2 .
  • each shelf 17 comprises a shelf portion 30 and a pair of brackets 32 which support the shelf portion 30 and are configured to be received within slots in the back panel 12 of the ORDC 2 .
  • a product information strip 34 extends across a front surface of the shelf portion 30 and has a channel for receiving tickets displaying information regarding the products on the shelf portion 30 , such as the product's price.
  • the flow stabilizing device 28 comprises a pair of arms 36 a, 36 b.
  • the arms 36 a, 36 b are affixed to either lateral side of the shelf 17 such that they are spaced from one another across the width of the shelf 17 .
  • Each of the arms 36 a, 36 b is connected at one end to the shelf 17 and extends away from the shelf 17 in a cantilevered manner to a free end.
  • the arms 36 a, 36 b thus lie in the same plane as the shelf 17 .
  • the arms 36 a, 36 b may be connected to the shelf 17 in any suitable manner, such as via attachment to the shelf portion 30 , the brackets 32 or the product information strip 34 .
  • a pair of stabilizing beams 38 a, 38 b extend between the arms 36 a, 36 b.
  • the stabilizing beams 38 a, 38 b are spaced from one another and run parallel to one another across the full width of the shelf 17 (and the display area 15 ).
  • the stabilizing beams 38 a, 38 b are arranged so that their widths extend in a vertical direction, substantially perpendicular to the shelf 17 .
  • the stabilizing beams 38 a, 38 b are, however, angled relative to one another so that the gap between the stabilizing beams 38 a, 38 b tapers toward the lower end of the stabilizing beams 38 a, 38 b.
  • the stabilizing beams 38 a, 38 b thus define a first slot 39 a having a vertical extent (length).
  • the first slot 39 a comprises an inlet at an upper end and an outlet at a lower end.
  • the inlet has a greater width than the outlet and a convergent throat is disposed between the inlet and the outlet.
  • the stabilizing beams 38 a, 38 b may taper at an angle of greater than 0° and less than 20° to the vertical. The angle may, however, differ between the two stabilizing beams 38 a, 38 b within a single flow stabilizing device 28 .
  • the outermost stabilizing beam 38 a may be arranged vertically and the innermost stabilizing beam 38 b angled relative to the outermost stabilizing beam 38 a.
  • the outermost stabilizing beam 38 a may be provided with a product information strip which can be used to display information regarding the products on the shelf portion 30 if the product information strip 34 of the shelf 17 itself is obscured by the stabilizing beams 38 a, 38 b.
  • the stabilizing beams 38 a, 38 b may be transparent to allow the product information strip 34 of the shelf 17 to be viewed. This may also prevent the stabilizing beams 38 a, 38 b from blocking light from a light source within the ORDC 2 and thus ensure proper illumination of the products within the ORDC.
  • each of the shelves 17 is provided with a flow stabilizing device 28 .
  • the stabilizing beams 38 a, 38 b of each shelf 17 are spaced from the shelf 17 so as to form a second slot 39 b between the innermost stabilizing beam 38 b and the shelf 17 .
  • the stabilizing beams 38 a, 38 b are positioned such that the majority of the air curtain 26 passes between the stabilizing beams 38 a, 38 b, through the first slot 39 a. A portion of the air curtain 26 may pass between the innermost stabilizing beam 38 b and the shelf 17 , through the second slot 39 b, or beyond the exterior surface of the outermost stabilizing beam 38 a.
  • the back panel 12 is perforated to allow air to pass from the duct 16 into the display area 15 where it cools items located on the shelves 17 and on the lower panel 10 .
  • the direction of air flow from the back panel 12 is thus predominantly perpendicular to that of the air curtain 26 .
  • the air from the back panel 12 is entrained with the portion of the air curtain 26 passing through the second slot 39 a which turns the air flow towards the direction of the air curtain 26 . This reduces the effect the air flow from the back panel 12 has on the air curtain 26 .
  • the air curtain 26 may be angled away from vertical and the stabilizing beams 38 a, 38 b may be spaced progressively further from the shelf 17 (or, where the shelves are of different lengths, from the back panel 12 ) from the uppermost shelf 17 to the lowermost shelf 17 so as to be aligned with the air curtain 26 .
  • the spacing between the stabilizing beams 38 a, 38 b may increase from the uppermost flow stabilizing device 28 to the lowermost flow stabilizing device 28 to account for the air curtain 26 becoming thicker as it passes down the front of the ORDC 2 .
  • the intake grille 18 is not directly aligned with the discharge grille 20 .
  • the stabilizing beams 38 a, 38 b of the uppermost flow stabilizing device 28 are curved so that the air curtain 26 is turned slightly as it passes through this flow stabilizing device 28 .
  • the stabilizing beams 38 a, 38 b of the uppermost flow stabilizing device 28 may also run parallel to one another such that they do not converge.
  • FIGS. 4 and 5 provide a comparison of the flow characteristics of the air curtain 26 without the flow stabilizing devices 28 of the invention ( FIG. 4 ) and with the flow stabilizing devices 28 ( FIG. 5 ).
  • the air leaves the discharge grille 20 as a coherent jet 40 .
  • the jet 40 soon becomes unstable in region 42 , and begins to separate. This causes a high level of turbulent mixing in region 44 which warms the air curtain 26 considerably, thus warming the ORDC 2 .
  • the flow stabilizing devices 28 acts to re-stabilize the flow.
  • the stabilizing beams 38 a, 38 b converge such that, as a result of the Venturi effect, the air is accelerated as it passes through the first slot 39 a of the flow stabilizing device 28 .
  • the acceleration acts to further stabilize the air curtain 26 .
  • the width of the air curtain 26 is also reduced which helps maintain a thin shear layer throughout the length of the air curtain 26 .
  • the second slot 39 b formed between the innermost stabilizing beam 38 b and the shelf 17 further promotes stabilization of the air curtain 26 by drawing air from the back panel 12 into the air curtain 26 .
  • each flow stabilizing device 28 may be pivotably connected to the shelf 17 so that the flow stabilizing device 28 remains horizontal (or at some other predetermined orientation).
  • the arms 36 a, 36 b may be pivotably connected to the shelf 17 .
  • the arms 36 a, 36 b may each comprise first and second members connected to one another at an articulated joint.
  • the arms 36 a, 36 b may also allow the distance of the stabilizing beams 38 a, 38 b from the shelf 17 to be varied.
  • the arms 36 a, 36 b may therefore allow for this to be counteracted so that the stabilizing beams 38 a, 38 b remain in the correct position for the air curtain 26 .
  • the arms 36 a, 36 b may allow the stabilizing beams 38 a, 38 b to be located in a plurality of positions (e.g. defined by discrete mounting holes or a continuous slot) or the arms 36 a, 36 b themselves may be connected to the shelf 17 in a plurality of positions.
  • the arms 38 a, 38 b may comprise a telescoping arrangement to alter their length.
  • the flow stabilizing device 28 may comprise an injector port which receives additional air.
  • the injector port may be connected to the duct 16 via a conduit or the injector port may receive air which passes through the perforated back panel 12 .
  • the injector port may be located adjacent the inlet of the flow stabilizing device 28 .
  • the Venturi effect creates an area of low pressure within the flow stabilizing device 28 as the air curtain 26 is accelerated. This acts to draw in the additional air from the injector port which further increases the velocity of the air curtain, thus helping it to remain stable and intact in extreme ambient conditions.
  • the flow stabilizing devices 28 can be connected to a standard shelf 17 and thus allow the flow stabilizing devices 28 to be retrofit to existing ORDCs.
  • the flow stabilizing devices 28 may, however, be integrally formed with the shelves 17 or the ORDC 2 .
  • each shelf 17 of the ORDC 2 has been described as having a flow stabilizing device 28 , this need not be the case and only some of the shelves 17 may be provided with flow stabilizing devices 28 . It is, however, desirable that the flow stabilizing devices 28 are provided at regular spacings of between 120 mm and 190 mm, which corresponds to approximately 4 to 6 times the width of the discharge grille 20 , and preferably at spacings of around 160 mm (5 times the width of the discharge grille 20 ).
  • the flow stabilizing devices 28 have been described as being connected directly to the shelves 17 , they may instead be connected to other parts of the ORDC 2 .
  • the arms 36 a, 36 b of the flow stabilizing devices 28 may connect to the back panel 12 such that the flow stabilizing devices 28 are positioned between adjacent shelves 17 (or between the lowermost shelf 17 and the lower panel 10 ).
  • the flow stabilizing devices 28 may be positioned just below each of the shelves 17 .
  • the flow stabilizing devices 28 may be connected to the left and right side walls of the ORDC 2 .
  • the arms 36 a, 36 b can be omitted and the stabilizing beams 38 a, 38 b connected directly to the ORDC 2 .
  • the stabilizing beams 38 a, 38 b also need not lie in the plane of the shelf 17 .
  • the stabilizing beams 38 a, 38 b may be offset from the shelf 17 such that they are not aligned with the product information strip 34 , thus allowing the product information strip 34 to be viewed. This may be achieved by using arms which are stepped or otherwise configured so that the connection to the shelf 17 and the connection to the stabilizing beams 38 a, 38 b are offset from one another.
  • the stabilizing beams 38 a, 38 b may not converge and are instead arranged parallel to one another. Such parallel stabilizing beams 38 a, 38 b may guide the air flow and prevent expansion of the air curtain, thus still re-stabilizing the flow.

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  • 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)
  • Duct Arrangements (AREA)
  • Air-Flow Control Members (AREA)
US14/702,249 2014-06-27 2015-05-01 Open Refrigerated Display Case and a Flow Stabilizing Device Abandoned US20150374141A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US14/840,727 US9370262B2 (en) 2014-06-27 2015-08-31 Open refrigerated display case and a flow stabilizing device

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GBGB1411474.8A GB201411474D0 (en) 2014-06-27 2014-06-27 An open refrigerated display case and a flow stabilising device
GB1411474.8 2014-06-27
GB1502192.6A GB2527628C (en) 2014-06-27 2015-02-10 An open refrigerated display case having a flow stabilising device and a flow stabilising device for an open refrigerated display case
GB1502192.6 2015-02-10

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US14/840,727 Continuation US9370262B2 (en) 2014-06-27 2015-08-31 Open refrigerated display case and a flow stabilizing device

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US20150374141A1 true US20150374141A1 (en) 2015-12-31

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US14/702,249 Abandoned US20150374141A1 (en) 2014-06-27 2015-05-01 Open Refrigerated Display Case and a Flow Stabilizing Device
US15/321,587 Abandoned US20170208967A1 (en) 2014-06-27 2015-06-29 An Open Refrigerated Display Case and a Flow Stabilizing Device
US14/840,727 Active US9370262B2 (en) 2014-06-27 2015-08-31 Open refrigerated display case and a flow stabilizing device

Family Applications After (2)

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US15/321,587 Abandoned US20170208967A1 (en) 2014-06-27 2015-06-29 An Open Refrigerated Display Case and a Flow Stabilizing Device
US14/840,727 Active US9370262B2 (en) 2014-06-27 2015-08-31 Open refrigerated display case and a flow stabilizing device

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US (3) US20150374141A1 (es)
EP (2) EP2959805B8 (es)
JP (1) JP6534400B2 (es)
CN (1) CN106604664B (es)
AU (2) AU2015278917B2 (es)
ES (1) ES2612106T3 (es)
GB (3) GB201411474D0 (es)
HK (1) HK1231341A1 (es)
HU (1) HUE031300T2 (es)
PL (1) PL2959805T3 (es)
PT (1) PT2959805T (es)
WO (1) WO2015198076A1 (es)

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US20170340141A1 (en) * 2014-10-28 2017-11-30 Aht Cooling Systems Gmbh Refrigeration unit
CN108778065A (zh) * 2016-05-16 2018-11-09 艾若弗尔能源有限公司 开放式陈列冰箱的改进
USD852941S1 (en) * 2017-03-22 2019-07-02 Wirth Research Limited Air flow deflector
US10765231B2 (en) 2016-02-11 2020-09-08 Hill Phoenix, Inc. Discharge air straightener
US20210298492A1 (en) * 2018-08-20 2021-09-30 Wirth Research Limited A Refrigerated Display Case

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GB201306612D0 (en) 2013-04-11 2013-05-29 Fridgeland Uk Ltd Improvements in refrigerators
GB2544760A (en) 2015-11-25 2017-05-31 Aerofoil Energy Ltd Improvements in refrigerators
JP6696187B2 (ja) * 2016-01-25 2020-05-20 富士電機株式会社 ショーケース
GB2552536A (en) * 2016-07-28 2018-01-31 Aerofoil Energy Ltd Improvements to open display refrigerators
JP2018117979A (ja) * 2017-01-27 2018-08-02 株式会社オカムラ オープンショーケース
GB2560367B (en) 2017-03-09 2021-06-23 Aerofoil Energy Ltd Improvements to cooling units
GB2560932B (en) * 2017-03-28 2021-07-07 Aerofoil Energy Ltd Air curtain guide mounting kit
GB2561354A (en) * 2017-04-10 2018-10-17 Wirth Res Limited An open refrigerated display case and an adjustable shelf for an open refrigerated display case
GB2555227A (en) * 2017-09-26 2018-04-25 Aerofoil Energy Ltd Improvements to open display refrigerators
GB2563468B (en) * 2017-11-22 2019-06-19 Wirth Res Limited A method of configuring an open refrigerated display case
WO2019174729A1 (en) * 2018-03-14 2019-09-19 Wirth Research Limited A refrigerated display case
GB2575298A (en) * 2018-07-05 2020-01-08 Wirth Res Limited A refrigerated display case and a flow control device for a refrigerated display case
GB2576512A (en) * 2018-08-20 2020-02-26 Wirth Res Limited A refrigerated display case
GB2578141B (en) * 2018-10-18 2020-10-07 Wirth Res Limited A flow stabilising device for an open refrigerated display case
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