Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
  • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
  • B65D81/38—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents with thermal insulation
  • B65D81/3813—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents with thermal insulation rigid container being in the form of a box, tray or like container
  • B65D81/3823—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents with thermal insulation rigid container being in the form of a box, tray or like container formed of different materials, e.g. laminated or foam filling between walls
• • 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
  • F25D2303/00—Details of devices using other cold materials; Details of devices using cold-storage bodies
  • F25D2303/08—Devices using cold storage material, i.e. ice or other freezable liquid
  • F25D2303/083—Devices using cold storage material, i.e. ice or other freezable liquid using cold storage material disposed in closed wall forming part of a container for products to be cooled
  • F25D2303/0831—Devices using cold storage material, i.e. ice or other freezable liquid using cold storage material disposed in closed wall forming part of a container for products to be cooled the liquid is disposed in the space between the walls of the container
• • 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
  • F25D2331/00—Details or arrangements of other cooling or freezing apparatus not provided for in other groups of this subclass
  • F25D2331/80—Type of cooled receptacles
  • F25D2331/804—Boxes
• • 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
  • F25D3/00—Devices using other cold materials; Devices using cold-storage bodies
  • F25D3/02—Devices using other cold materials; Devices using cold-storage bodies using ice, e.g. ice-boxes
  • F25D3/06—Movable containers
  • F25D3/08—Movable containers portable, i.e. adapted to be carried personally

Definitions

• the present invention refers to a thermally insulate container, mainly intended for storing and/or transportation of material requiring storage at a constant temperature or within a temperature interval, such as for example vaccine, biological material or the like, including a storing space intended for an object to be cooled, and which is surrounded by at least one insulating layer.
• British patent GB-1.006,746 discloses a container -for transport of material which requires cooling by means of a gas in liquid state.
• the container comprises an insulating external container in which a porous container body is located and in the interior of which the material, which should be cooled can be introduced.
• the container body is prepared with slowly boiling liquid gas which slowly evaporates whereby cold is emitted.
• This invention is primarily intended for biological material which should be kept at a very low temperature, well below the freezing point, and which therefore requires a liquid gas for its cooling.
• the device is furthermore designed to allow the gas generated during the boiling to escape through evacuation canals.
• the cooling device is primarily intended t be used during measurement inside tunnel owens and the like, and it comprises mainly an inner and an outer cylinder locate in an insulated container. Between the inner and oute cylinder is arranged a heat-storing material whic communicates with the surroundings via a steam exhaust tub and a filling tube. The inner device is again located in a insulated container filled with insulating material. This invention is thus intended for very high surrounding temperatures, which occur e.g. in owens.
• a heat storing material which when exposed to heat evaporates to steam which escapes through an relief tube.
• the device is position sensitive, e.g. it must always be located in a certain way where the filling tube and the tube for evacuation of steam is directed upwards, in order to work. It is also only intended to maintain a certain temperature in its inner space during a short period of time.
• the purpose of the present invention is to provide a thermally insulated container which can be used as a disposable container and which is cheap to manufacture.
• Another purpose of the invention is that the container should be robust and protect its contents against damages caused by external influence in the form of impacts and blows.
• a further purpose is that the inner space of the container shall be kept at an mainly constant temperature or within a certain temperature interval during a long period of time.
• the container shall use a passive system, e.g. no energy shall be supplied from outside to maintain the determined temperature.
• the container is designed with at least one outer and one inner casing which are hermetically sealed off. that a phase transforming material is arranged in the inner casing of the container in connection to the cooled object and that at least one insulating layer is arranged between the outer and inner casing of the container and intended to completely surround the cooled object.
• Figure 1 shows a cross section of a container according to the invention
• figure 2 shows another container according to the invention
• figure 3 shows a further alternative of a container intended for a higher temperature interval.
• FIG 1 a thermally insulated container according to the invention. It consists of an outer casing 1 made e.g. of plastic material and it is designed as a square box in order to facilitate stacking and storing.
• the size of the outer casing can of course be varied within wide margins but can e.g. be about 50x50x50 cm.
• a container of this dimension has a transport weight of about 15-20 kg.
• an inner casing 2 In the space inside the outer casing is located an inner casing 2 at a certain distance from the outer casing 1. Also this inner casing 2 may consist of plastic or similar material.
• the outer and inner casing 1 , 2 are designed to be diffusion proof in order to reduce the pressure increase and to maintain a low heat conductivity. Between the outer and the inner casing 1.
• an insulating layer 3 which space preferably can be filled with an insulating, porous material, e.g. perlite.
• an insulating, porous material e.g. perlite.
• this space has been put under vacuum by evacuation. This may e.g. be achieved thereby. that crosslinked polyethylene is used.
• the outer and the inner casing are sealed e.g. by a plastic weld after pack the material, the cooling object 4, which should be transported or stored.
• the material, the cooled object, which shall be stored and/o transported at a constant temperature, is located in th intermediate space of the inner box shaped casing 1.
• Th material which can consist of a daily ration of vaccin. e.g about 1-2 kg can be enclosed in a further box of plastic o similar material or it may simply be enclosed in shrink film (see fig. 2).
• the space between the package 6. 7 of the coole object and the inside of the inner casing 2 is filled with phase transforming material 5. which e.g. can be salt or ic of distilled water. If ice is used as phase transformin material, vaccine of the above mentioned quantity, can be kep cooled during a very long time.
• phase trans ⁇ forming material will not transform to gases.
• phase trans ⁇ forming material will not transform to gases.
• phase transforming material such as ice water or salt impacts and blows are effectively absorbed whereby the cooled object is well protected during the transport.
• FIG 2 is shown an alternative embodiment according to the invention. Partly is shown how the cooled object 4 has been packed by means of shrink film 7 only and put into the inner space 5 of the inner casing 2. Another essential difference is the insulation which is arranged in the space between the outer and inner casing 1 , 2 of the container. A number o f layers of foil 8 have been used here instead of a porous insulating material. It is still important that the _ _
• casing 1,2 is diffusion sealed and it is suitable that vaccum is used to reduce the heat leakage further.
• One advantage in using the film layer is that a better protection against i.a. among radiation is achieved.
• the cooled object can also be located together with the phase transformation material in an inner cylindric metal container.
• This container are a number of , e.g. 20, insulating layers arranged .
• the insulating layers can e.g. consist of layers of glass fibres and aluminium foil. It is important at the application that the insulating layers fit tightly around the inner container and that no thermal bridges are formed in possible joints.
• the metal container and insulation layers are thereafter located in an outer, e.g. cylindric container, which could be provided with a reinforcement at the inside, and the outer container is vacuum evacuated.
• Both the inner and outer container may consist of a container of the type of tin can, which makes the transport container cheap to manufacture as earlier already known technology may be used.
• the container according to the invention may be designed in a way shown in figure 3.
• the inner space of the container has been divided into two chambers 9. 10 by means of a partition wall 12.
• the first chamber 9 contains the phase transforming material and the secondchamber 10 constitutes the storing space for the cooled object 4.
• the phase transforming material 5 may in this case consist of ice of distilled water and maintain a tem-
• the storing space 10 Owing to the fact that the cooled object 4 is not enclosed by the phase transforming material 5 on all sides, but some of the wall surfaces in the storing space 10 are close to the insulating layers 3, the storing space 10 will achieve a somewhat higher temperature than the phase transforming material. This depends on the small amount of heat which finds its way through the outer insulating layer 3.
• the somewhat higher temperature at hand in the storing space 10 in this type of package is about some tenths of degree over 0. which is enough to store vaccine at a temperatur which does not damage, crystalize, the vaccine.
• the temperature in the storing space 10 may b adjusted to desired level.
• the insulation ability of the partition wall 12 hereby determines the difference in temperature between the storing space 10 and the phase transforming material 5.
• the container is exposed to direct sunlight or other heat radiation it is appropriate to provide the outer surface of the container with a reflecting layer 11. e.g. in the form of a metal film (see figure 3).

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Packages (AREA)
• Table Devices Or Equipment (AREA)
• Medical Preparation Storing Or Oral Administration Devices (AREA)
• Thermally Insulated Containers For Foods (AREA)
• Refrigerator Housings (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=20355399

Family Applications (2)

Family Applications After (1)

Country Status (9)

Families Citing this family (28)

Family Cites Families (16)

• 1984
  • 1984-04-02 SE SE8401805A patent/SE447094B/sv not_active IP Right Cessation
• 1985
  • 1985-04-01 EP EP85901661A patent/EP0210168A1/de not_active Withdrawn
  • 1985-04-01 AT AT85850116T patent/ATE45926T1/de not_active IP Right Cessation
  • 1985-04-01 EP EP85850116A patent/EP0157751B1/de not_active Expired
  • 1985-04-01 JP JP60501637A patent/JPS61501700A/ja active Pending
  • 1985-04-01 WO PCT/SE1985/000150 patent/WO1985004384A1/en not_active Ceased
  • 1985-04-01 DE DE8585850116T patent/DE3572640D1/de not_active Expired
  • 1985-04-01 AU AU41586/85A patent/AU4158685A/en not_active Abandoned
  • 1985-11-29 DK DK553585A patent/DK162491C/da active
  • 1985-11-29 NO NO85854824A patent/NO165671C/no unknown

Non-Patent Citations (1)

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