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WO2002028234A1 - Meuble d'immersion - Google Patents

Meuble d'immersion Download PDF

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Publication number
WO2002028234A1
WO2002028234A1 PCT/US2001/028301 US0128301W WO0228234A1 WO 2002028234 A1 WO2002028234 A1 WO 2002028234A1 US 0128301 W US0128301 W US 0128301W WO 0228234 A1 WO0228234 A1 WO 0228234A1
Authority
WO
WIPO (PCT)
Prior art keywords
cabinet
refrigerated
canopy
front wall
ofthe
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.)
Ceased
Application number
PCT/US2001/028301
Other languages
English (en)
Inventor
Thomas W. Rand
Joseph F. Sanders
Robert T. Topper
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.)
Tyler Refrigeration Corp
Original Assignee
Tyler Refrigeration Corp
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 Tyler Refrigeration Corp filed Critical Tyler Refrigeration Corp
Publication of WO2002028234A1 publication Critical patent/WO2002028234A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • A47F3/001—Devices for lighting, humidifying, heating, ventilation
    • 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
    • A47F3/0404—Cases or cabinets of the closed type
    • 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
    • A47F3/005—Show cases or show cabinets with glass panels
    • A47F3/007—Cases or cabinets of the counter type
    • A47F2003/008—Cases or cabinets of the counter type with pivoting front glass panel

Definitions

  • the present invention relates generally to refrigerated cabinets of the type used in commercial application for housing containers of frozen confection to be hand dipped. More specifically, the present invention relates to an improved canopy for a dipping cabinet.
  • refrigerated dipping cabinets are horizontal cabinets having a front wall, a back wall, and end walls, all ofthe same height.
  • the four walls define an open compartment for housing the containers of frozen confection, to be served, for example not only ice cream, but also frozen yogurt, sherbet, sorbet and the like.
  • the walls are commonly of the "cold wall” type having interior and exterior sheet metal skins surrounding a thermally insulating core wherein refrigerant tubing is mounted to the reverse side of the inner sheet metal skin. Cold refrigerant is circulated through the refrigerant tubing to cool the interior skin, while heat is transferred from the product to the cold interior skin of the surrounding walls by radiation and conduction to ensure a stable stratification of cold, dense air is maintained within the cabinet.
  • dipping cabinets are provided with a tent-like canopy supported atop the four walls of the cabinet. Customers can view the product through a window provided in the front wall of the canopy on the front, that is customer side, of the cabinet. Additionally, the canopy has a rear wall having a service access on the back side, that is server side, of the cabinet.
  • these canopies are constructed with a single pane glass front window and a rear lid of a thermally formed clear acrylic or polycarbonate-type plastic sheet.
  • a cover typically either a hinged lid or a pair of sliding doors, is provided for closing the service access when access is not being made to the interior of the canopied cabinet.
  • the product fill line is customarily several inches below the top edge of the cabinet. This open volume is necessary to provide space for a layer of cold refrigerated air over the top of the frozen product to protect the product from the warm ambient, air in the store.
  • the product is recessed somewhat below the top edge ofthe cabinet, customers can not ready view the product through the front window in the canopy of the cabinet, particularly product stored in the front region ofthe cabinet interior.
  • frost shields comprising substantially planar panels, are mounted to the upper interior wall of the cabinet to provide a removal surface on which the frost can collect, rather than collecting directly on the cabinet interior walls. To defrost the cabinet, the frost shields are removed from the cabinet and the frost thereon readily removed, typically by contacting the frost with hot water.
  • a refrigerated cabinet having a cabinet base defining an open top compartment having a refrigerated interior for housing a refrigerated product and a canopy disposed atop the refrigerated compartment.
  • the cabinet base has a front wall, a back wall and end walls, the front wall being shorter in height than said back wall.
  • the canopy has a front wall having a transparent window through which the cabinet interior may be viewed, and a back wall having a service door. The service door moveable between a closed position and an open position to provide access to the cabinet interior.
  • the front wall ofthe canopy and the transparent window extend downwardly to the front wall of said cabinet whereby the view ofthe cabinet interior is expanded.
  • the transparent window of the front wall of the canopy advantageously is a tempered glass window, and most advantageously a thermopane glass window having at least a first glass pane and a second glass pane disposed in spaced relationship with an insulating gap therebetween.
  • An electroconductive coating may be deposited on a lower portion of at least one glass pane of the transparent window ofthe front wall ofthe canopy.
  • Figure 1 is a sectional side elevation view ofthe refrigerated cabinet of the present invention
  • Figure 2 is a sectional side elevation view ofthe refrigerated cabinet of the present invention with the service door ofthe canopy in the open position
  • Figure 3 is a sectional side elevation view ofthe refrigerated cabinet of the present invention with the rear wall ofthe canopy in the open position
  • Figure 4 is an expanded sectional side view ofthe lower portion of the front wall ofthe cabinet base ofthe refrigerated cabinet of Figure 1;
  • Figure 5 is a perspective view of the refrigerated cabinet of the present invention taken generally from the front ofthe cabinet;
  • Figure 6 is a perspective view of the refrigerated cabinet ofthe present invention taken generally from the rear ofthe cabinet;
  • Figure 7 is a perspective view of the refrigerated cabinet of the present invention taken generally from the rear ofthe cabinet showing the service door in an open position
  • Figure 8 is a perspective view ofthe refrigerated cabinet ofthe present invention taken generally from the rear ofthe cabinet showing the service door and framework as a unit in an open position
  • Figure 9 is a perspective view of a prior art dipping cabinet.
  • the canopied refrigerated cabinet of the present invention will be described herein in a preferred embodiment as an ice cream dipping cabinet. It is to be understood, however, that the canopied refrigerated cabinet of the present invention is generally applicable in various embodiments as refrigerated display cases wherein customer viewing and service access are required. Therefore, it is to be understood that the present invention and the various aspects thereof are not limited to the embodiments illustrated in the drawing.
  • the refrigerated cabinet 10 is depicted as an ice cream dipping cabinet.
  • the cabinet 10 includes a refrigerated base 20 and a canopy 30 supported upon the base 20.
  • the refrigerated base 20 includes an outer shell 12 and an interior refrigerated liner 14 disposed in spaced relationship and capped by a trim member 16. So constructed, the base 20 defines a box-like enclosure having a front wall 13, a rear wall 15 and side walls 17, a floor and an open top.
  • the walls and floor ofthe liner 14 are each formed of a metallic, conventionally stainless steel, support sheet with a vinyl layer coated on the observe side thereof.
  • the liner 14 encloses a refrigerated volume 23 in which refrigerated product 50 is stored, usually up to the product fill line 21.
  • the refrigerated product 50 may, for example, constitute hard ice cream, frozen yogurt, sorbet, sherbet or other frozen confection.
  • the outer shell 12 surrounds the liner 14 in spaced relationship about the four side walls and floor thereof.
  • the liner 14 is cooled in a conventional manner by means of evaporator tubing 22 mounted to or otherwise disposed in heat exchange relationship with the back surface of the liner 14.
  • the evaporator tubing is part of a conventional refrigeration circuit (not shown) wherein compressed refrigerant from a compressor is expanded via a thermal expansion devise, passed through the evaporator tubing, thence through a condenser before returning to the compressor.
  • compressed refrigerant for example R-22, R-404a or other commercially available refrigerant
  • the refrigerant passes through the evaporator tubing, the refrigerant evaporates upon absorbing heat through the liner 14 from the air within the refrigerated volume, thereby cooling the air and the product to maintain a desired temperature. In this manner, a layer of cold air is maintained in the volume 25 above the product 50, which as noted before normally fills the refrigerated enclosure up to the product fill line 21.
  • the refrigerated base 20 of the cabinet 10 as described hereinbefore and depicted in Figure 1, is of the conventional "cold wall" construction.
  • the particular construction of the base 20 or the particular method of refrigerating the base 20 is not germane to the present invention.
  • the cabinet base 20 may be constructed with cold refrigerated air circulating through an open passage between an outer wall and an inner wall as disclosed in copending United States patent applications serial number 09/016,824, filed January 20, 1998, the entire disclosure of which is hereby incorporated herein by reference.
  • the canopy 30 has a top wall 32, a front wall 34 on the customer side of the cabinet 10, side walls 36, and a rear wall 38 on the service side, i.e. the backside, of the cabinet 10.
  • the top wall 32 is supported upon and extends between the side walls 36 and the front wall 34.
  • the front wall 34 comprises a transparent window 35, made of a transparent material, supported in a frame 37.
  • the window 35 provides a customer view area through which a customer may view the product 50 stored within the refrigerated volume 23.
  • the side walls 36 may be made of stainless steel or other metal, molded plastic, or, if desired, of a support frame and a panel of a transparent material mounted within the frame.
  • the transparent front wall 34 is extended downwardly toward the product fill line 17, and most advantageously down to the product fill line 17, thereby increasing the customer view area.
  • the front wall 13 ofthe cabinet base 20 is foreshortened to a height that is lower than the height ofthe rear wall 15 and side walls 17 ofthe cabinet base 20.
  • the front wall 13 will be several inches, for example about six inches, shorter than the side walls and rear wall of the cabinet base 20.
  • the window 35 in the front wall 34 ofthe canopy 30 may be formed as a single piece, flat or arcuate, of molded, transparent plastic or Plexiglas material.
  • the window 35 is a multi-pane thermal window having two or more panes disposed in spaced relationship thereby forming an insulating air space therebetween.
  • the window 35 whether flat or arcuate, comprises such a thermal window with a pair of spaced glass panes 35 ' and 35".
  • an electroconductive coating 70 may be applied to at least the lower portion of one ofthe panes, for example to the inside surface of the lower portion of outside pane 35'. Busbars (not shown) in contact with the electroconductive coating an connected to a power supply provide a means of supplying electric current across the electroconductive coating.
  • Electrical current is selectively passed through the electroconductive coating to heat the window sufficiently to maintain the window at a temperature above the local dew point thereby precluding frost formation on the inside surface of the inside panel 35 "or condensation on the outside surface of the outside panel 35', but avoiding undesireable heating of the product 50 in the refrigerated cabinet 10.
  • the rear wall 38 ofthe canopy 30 comprises a transparent service door 40 carried on a framework 42.
  • the service door 40 may be made of a transparent plastic material or Plexiglas, as in conventional dipping cabinets, most advantageously, the service door 40 is a panel of flat, tempered glass.
  • Tempered glass is considerably stronger than plastic materials and has greater structural rigidity. Further, tempered galss is not as easily marred, scratched or broken.
  • the service door 40 and the framework 42 are carried on a support system 60 comprising hinges 41 and two sets of paired gas springs 62 and 64 and adapted to pivot about different respective centers of rotation as best seen in Figures 1, 2 and 3.
  • Each gas spring 62 connects at its distal end to a hinge 41 mounted to the framework 42 and at its proximal end to a support bracket 63 mounted on the respective side wall 36.
  • the service door 40 pivots about a first center of rotation through a pivot pin 65 in each hinge 41.
  • Each gas spring 64 connects at its distal end to the framework 42 and its proximal end to a support bracket 67 mounted on the side wall 36.
  • the framework 42 pivots about a second center of rotation through the pivot pins 69 supported on the respective side wall 36.
  • a set of support brackets 63 and 67 and pivot pin 69 are provided in each ofthe side walls 36.
  • the rear wall 38 In the closed position, as illustrated in Figures 1 and 6, the rear wall 38 is held at a nominal 45 degree angle with its lower end in sealing contact with the trim member 16 on the rear wall 15 of the cabinet base 20 and with its upper end in sealing contact with the top wall 32 of the canopy 30.
  • the sides of the rear wall 38 of the canopy 30 are in sealing contact with the respective side walls 36 of the canopy 30.
  • the sealing function is accomplished by gaskets carried on one or more of the edges of the rear wall 38, the top wall 32, or the side walls 36.
  • the service door 40 is pressed against the framework 42 and held in that position by the action ofthe gas springs.
  • a lamp 80 is mounted to the top wall 32 ofthe canopy 30 at a position external to the canopy interior when the rear wall is in its closed position as best illustrated in Figure 6.
  • Conventional dipping cabinets typically have a lamp mounted to the top wall of the canopy but positioned within the cabinet interior. So positioned within the canopy, the heat energy radiated from the lamp is trapped within the refrigerated interior of the cabinet 10, thereby increasing the cooling load on the refrigeration system and potentially warming and softening the ice cream product. Also, high-energy wavelengths from the lamp tend to break down the product chemistry causing discoloration.
  • the heat energy form the lamp is dissipated to the environment outside the refrigerated cabinet.
  • the high- energy wavelength light may be reflected by the service door 40, while only the lower energy wavelength light passes through the transparent service door 40 to illuminate the interior ofthe refrigerated cabinet 10.
  • the tempered glass panel forming the service door 40 in the preferred embodiment may be coated with an appropriate material to enhance blocking of the high-energy wavelength light from entering the refrigerated cabinet. If desired, the tempered glass panel forming the service door 40 may be coated with an electroconductive film whereby electrical current may be applied to the coating to selectively heat the glass panel to prevent fogging from condensation and/or frosting..
  • the service attendant To access the interior of the refrigerated cabinet 10 for dipping the ice cream product 50, the service attendant merely pushes the service door 40 inward. Pushing downwardly on the lower portion of the service door 40 causes the service door 40 to rotate inwardly about the first center of rotation
  • the service door 40 rotates forward to rest against one or more stops in its open position, as best illustrated in Figures 2 and 7. When opened, the service door 40 affords easy access to the product 50 within the interior of the refrigerated cabinet 10, while not obstructing the customer's view.
  • the service door 40 and framework 42 which together form the rear wall 38 of the canopy 30, upwardly and outwardly, about the second center of rotation 67, thereby facilitating cleaning of the interior of the refrigerated cabinet 10.
  • Lifting the lower portion ofthe service door 40 causes the service door 40 and framework 42 to pivot together as a single unit through a nominal angle of about ninety degrees to an open position, as best illustrated in Figures 3 and 8.
  • the gas spring hinges 64 function to hold the service door 40 and framework 42 in place in the open position and also assist in lifting this unit to the open position.
  • Latches are provided at the lower corners of the service door 40 that are selectively engaged to lock the service door 40 to the framework 42 so that the service door 40 and framework 42 form a unit that may be rotated upwardly and outwardly to access the interior of the cabinet 10 for cleaning and sanitizing.
  • the service door 40 may be rotated inwardly independently of the framework 42 to provide service access to the product 50.

Landscapes

  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Freezers Or Refrigerated Showcases (AREA)
  • Refrigerator Housings (AREA)

Abstract

L'invention concerne un meuble réfrigéré (10) comprenant une base (20) de meuble définissant un compartiment supérieur ouvert ayant un intérieur réfrigéré destiné à abriter un produit réfrigéré (50) et un couvercle (30) posé au-dessus dudit compartiment. Une fenêtre vitrée transparente, pratiquée dans la paroi frontale du couvercle (30) descend jusqu'à la ligne de remplissage de produit à l'intérieur du compartiment réfrigéré, ce qui permet d'élargir le champ de vision du client. La paroi arrière du couvercle (30) comporte une porte de service (40) transparente et un châssis (42). La porte de service (40) peut tourner indépendamment du châssis (42) vers une position ouverte donnant accès de service au compartiment réfrigéré. La porte de service (40) et le châssis (42) peuvent également tourner simultanément en tant qu'unité vers une seconde position ouverte donnant accès au compartiment réfrigéré en vue de le nettoyer et de le désinfecter. Une lampe (80), destinée à éclairer l'intérieur du meuble est placée à l'extérieur du couvercle (30).
PCT/US2001/028301 2000-10-02 2001-09-10 Meuble d'immersion Ceased WO2002028234A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US23727900P 2000-10-02 2000-10-02
US60/237,279 2000-10-02
US09/745,056 2000-12-20
US09/745,056 US20020073725A1 (en) 2000-10-02 2000-12-20 Dipping cabinet

Publications (1)

Publication Number Publication Date
WO2002028234A1 true WO2002028234A1 (fr) 2002-04-11

Family

ID=26930514

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/028301 Ceased WO2002028234A1 (fr) 2000-10-02 2001-09-10 Meuble d'immersion

Country Status (2)

Country Link
US (1) US20020073725A1 (fr)
WO (1) WO2002028234A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110326939A (zh) * 2019-07-17 2019-10-15 宁波惠康国际工业有限公司 一种售卖展示一体式冰淇淋柜

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090308084A1 (en) * 2008-06-12 2009-12-17 Presence From Innovation, Llc Cooler/counter merchandising display unit
USD612517S1 (en) 2008-08-20 2010-03-23 Anthony, Inc. Door
US8613161B2 (en) * 2008-08-20 2013-12-24 Anthony, Inc. Refrigerator door construction including a laminated package
IT1396490B1 (it) * 2009-12-10 2012-12-14 Blasi De Banco vetrina refrigerato per gelati, a ridotto consumo energetico e ad elevata protezione dei prodotti contenuti

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1956102A (en) * 1930-11-22 1934-04-24 Puffer Hubbard Mfg Co Antifogging device for glass-walled refrigeration chambers
US2150195A (en) * 1936-12-19 1939-03-14 Malcolm G Valade Refrigerating display case
WO2000053062A1 (fr) * 1999-03-10 2000-09-14 Ardco, Inc. Vitrine a panneau de verre chauffe

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1956102A (en) * 1930-11-22 1934-04-24 Puffer Hubbard Mfg Co Antifogging device for glass-walled refrigeration chambers
US2150195A (en) * 1936-12-19 1939-03-14 Malcolm G Valade Refrigerating display case
WO2000053062A1 (fr) * 1999-03-10 2000-09-14 Ardco, Inc. Vitrine a panneau de verre chauffe

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110326939A (zh) * 2019-07-17 2019-10-15 宁波惠康国际工业有限公司 一种售卖展示一体式冰淇淋柜
CN110326939B (zh) * 2019-07-17 2024-05-31 宁波惠康工业科技股份有限公司 一种售卖展示一体式冰淇淋柜

Also Published As

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