Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B32—LAYERED PRODUCTS
  • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
  • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
  • B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
• • 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
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B32—LAYERED PRODUCTS
  • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
  • B32B15/00—Layered products comprising a layer of metal
  • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
  • B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B32—LAYERED PRODUCTS
  • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
  • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
  • B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions
  • B32B3/08—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B32—LAYERED PRODUCTS
  • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
  • B32B2311/00—Metals, their alloys or their compounds
  • B32B2311/24—Aluminium
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B32—LAYERED PRODUCTS
  • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
  • B32B2323/00—Polyalkenes
  • B32B2323/04—Polyethylene
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B32—LAYERED PRODUCTS
  • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
  • B32B2367/00—Polyesters, e.g. PET, i.e. polyethylene terephthalate

Definitions

• This invention relates to a reliable cover for freezing boxes and cooling cabinets used in supermarket stores etc , as stated in the introductory part of claim 1 , which covers such boxes/cabmets in periods when the goods are not to be displayed and which allows ior filling and removal
• the main object of the invention is to provide a cover for the cooling compartments of supermarket stores, which is lighter and less expensive than known covers Preferably, it should be easy to roll out and to remove Further it is an object to provide a cover which will drain condensed water and reduce the deicing frequency
• Fig. 1 shows a perspective view of a freezing box with a thermal cover according to the invention
• Fig. 2 shows a part of the lower side of the thermal cover according to Fig. 1
• Fig. 3 shows a section along line Ill-Ill of Fig. 2.
• a freezing box 1 1 with an upward opening is shown. Covering this opening is a thermal cover 12 according to the invention, the edges of which are placed at the sides and ends of the freezing box.
• the thermal cover 12 which shown in detail in Fig. 2 and 3, has a base material 13 of plastic sheets enclosing air bubbles.
• the material consists of a cover layer 13A (best illustrated in Fig. 3), which is a laminate of a polyester layer with an outer metallic covering, and an inner plastic layer, the "bubble layer” 13B welded to said first layer to enclose voids or "bubbles" 14 of air, and a second covering layer 13C.
• the plastic part of the cover layer 13A, the bubble layer 13B and the second covering layer 13C are made from polyethylene in this example.
• reinforcing bars 16A-D (Fig. 1 ) which extends crosswise to the longitudinal axis of the thermal cover, each a short distance longer than the inner width of the freezing box 11. It has been found suitable to attach the reinforcing bars 16A-D to the second covering layer 13C of base material 13 as shown in Figs. 2 and 3, in stead of incorporating them into the base material 13 during the manufacturing.
• Figs. 2 and 3 show the attachment of the reinforcing bars 16A-D with tapes 17 attached to the base material 13 on each side of the reinforcing bars.
• the tape 17 may be of a known type with a textile base and an adhesive layer attaching permanently to said second covering layer 13C
• the reinforcing bars 16A-D are slightly shorter than the w idth of the thermal cover 12, to allow the ends of the reinforcing bars to be completel ⁇ covered by the ends of the tape, which is attached adjacent to the end of the reinforcing
• edge tape 18 similar to tape 17
• the purpose of the edge tape 18 is twofold Firstly its object is to protect the edge of the thermal cover 12 against tea ⁇ ng dunng rolling in and out Further it facilitates upright storage of thermal cover rolls, without damage
• the purpose of the up ⁇ ght storage will be desc ⁇ bed hereinafter
• the edge tape 18 will protect also the laminated base mate ⁇ al from being contaminated Tapes 17 and 18 may alternatively be of a material which can be welded to the base material 13
• the reinforcing bars 16A-D of the example are plastic tubes, e g tubes of similar construction as tubes in elect ⁇ cal installations Such tubes combines low weight, high elasticity and the necessary strength Additionally, such tubes are easy to arrange A corresponding thermal cover as in the example can also be used for cooling cabinets It will then be convenient to attach a "Velcro" tape on the top of the cooling cabinet and provide the thermal cover with a corresponding tape
• the thermal cover is attached at the top and is rolled down in front of the cabinet opening When used, 1 e at closing the store in which the the ⁇ nal covers are used, the covers are rolled out to cover the openings of freezing boxes and cooling cabinets With the thermal cover applied the refrigeration or freezing temperature of the compartment is better maintained and so the power consumption will decrease In some cases, a reduction of 25% to 35% in power consumption in the period of applying the thermal cover has been achieved
• the favourable properties are assumed to be based on the combination of the mate ⁇ al used, with reflecting surface, and the use of reinforcing bars as provided by the invention This
• the thermal cover When the thermal cover is removed from a freezing box at the opening of a store, condensed water will be deposited, mainly on the upper face Due to the closed but structured face, this water will keep on the surface, particularly on a ho ⁇ zontal freezing box Dunng the day, the rolled up thermal covers are stored up ⁇ ght The water will thus drain and the thermal cover 12 will be dried for the next use box During the day, the rolled up thermal covers are stored up ⁇ ght The water will thus drain and the thermal cover 12 will be dried for the next use
• a Tollable cover for freezing compartments and cooling cabinets used in supermarket stores etc which covers the boxes/cabmets when not open for removal ol goods or display, comprising a layer of pliable, thermal insulating mate ⁇ al which can be rolled on to the compartment to cover its opening, and rolling up after being used, and which m rolled out condition covers the opening by engaging the four edges of the opening, the thermal insulating mate ⁇ al consisting of a porous matenal, characterized in
• the base mate ⁇ al (13) is a laminate of plastic sheets enclosing air bubbles (14), with an exposed light reflecting surface, - that the base mate ⁇ al (13) is provided with reinforcing bars (16A-D) which are attached with tapes adhered or welded to the base mate ⁇ al, and
• a surface layer is a metallic foil, particularly an aluminium foil, which is laminated in a manner known per se to a plastic layer

Landscapes

• Physics & Mathematics (AREA)
• Thermal Sciences (AREA)
• Refrigerator Housings (AREA)
• Wrappers (AREA)
• Packages (AREA)
• Devices That Are Associated With Refrigeration Equipment (AREA)

Applications Claiming Priority (3)

Publications (1)

Family

ID=20402785

Family Applications (1)

Country Status (7)

Families Citing this family (3)

Family Cites Families (3)

• 1996
  • 1996-05-30 SE SE9602106A patent/SE509490C2/sv not_active IP Right Cessation
• 1997
  • 1997-05-21 EP EP97927497A patent/EP0903991A1/en not_active Withdrawn
  • 1997-05-21 CN CN97195830A patent/CN1117259C/zh not_active Expired - Fee Related
  • 1997-05-21 AU AU31947/97A patent/AU3194797A/en not_active Abandoned
  • 1997-05-21 WO PCT/NO1997/000130 patent/WO1997045042A1/en not_active Application Discontinuation
  • 1997-05-23 ZA ZA9704540A patent/ZA974540B/xx unknown
  • 1997-05-28 ID IDP971806A patent/ID18429A/id unknown

Non-Patent Citations (1)

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