EP0153326A1 - Top structure for a cooled, transport compartment. - Google Patents

Top structure for a cooled, transport compartment.

Info

Publication number
EP0153326A1
EP0153326A1 EP84902628A EP84902628A EP0153326A1 EP 0153326 A1 EP0153326 A1 EP 0153326A1 EP 84902628 A EP84902628 A EP 84902628A EP 84902628 A EP84902628 A EP 84902628A EP 0153326 A1 EP0153326 A1 EP 0153326A1
Authority
EP
European Patent Office
Prior art keywords
pallet
compartment
tank
top structure
collar
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.)
Granted
Application number
EP84902628A
Other languages
German (de)
French (fr)
Other versions
EP0153326B1 (en
Inventor
Benny Fredrixon
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.)
ALTAMON B.V.
Original Assignee
ILSBO INDUSTRIER AB
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
Priority claimed from SE8303938A external-priority patent/SE443868B/en
Application filed by ILSBO INDUSTRIER AB filed Critical ILSBO INDUSTRIER AB
Priority to AT84902628T priority Critical patent/ATE48911T1/en
Publication of EP0153326A1 publication Critical patent/EP0153326A1/en
Application granted granted Critical
Publication of EP0153326B1 publication Critical patent/EP0153326B1/en
Expired legal-status Critical Current

Links

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
    • F25D3/00—Devices using other cold materials; Devices using cold-storage bodies
    • F25D3/10—Devices using other cold materials; Devices using cold-storage bodies using liquefied gases, e.g. liquid air
    • F25D3/105—Movable containers
    • 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
    • B65D81/18—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 providing specific environment for contents, e.g. temperature above or below ambient

Definitions

  • the present invention relates to a top structure for a transport, compartment formed of a pallet witn a so- called pallet collar or the like or of another upwardly openable container, which structure is adapted to up- wardly close the compartment and to maintain cold in goods contained in the transport compartment,
  • tne goods be kept at a prescribed storing temperature.
  • refrigerator vans provided witn individual freezing systems.
  • Transport of small amounts of goods, for instance deep-frozen foods, to one or a few retailers or consumers by means ot refrigerator vans will come expensive and not very expedient and involves unrational utilization of the refrigerator van.
  • deep-rrozen goods are tnerefore orten, for reasons of freight costs, transported on conventional vehicles, wnicn may lead to quality losses and risks for damages.
  • the object of this invention is to provide a simple and inexpensive structure primarily intended for use in the last part of tne transport chain, i.e. when the large goods volume is divided into small lots to be distributed to consumers who may be spread over a relatively large area.
  • the new feature of the structure according to the invention is that at least one tank or container for cooling or freezing medium in liquid state is accommodated in the structure closing the top of the transport compartment, that at least one permanently open nozzle, debouching towards said comaxtment is connected to said tank or container, and that the tank or container has a filling opening provided with a quick coupling, and the medium is adapted, after bein., filled into the tank, to successively evaporate and in gaseous state to flow out into the transport compartment under the top structure.
  • Fig. 1 is a side view showing partly in section a top structure according to the invention arranged on a pallet provided with a collar;
  • Fig. 2 is a bottom view of the same top structure
  • Fig. 3 is a side view showing partly in section a modified embodiment of the top structure.
  • Fig. 4 is a corresponding view of another modified embodiment of the top structure.
  • the top structure has a body including an outer frame 1 and a transverse support bar 2.
  • a plate or sheet constituting the top side of the structure is designated by 3 while 4 designates a bottom plate.
  • Arranged inside the two box-shaped cavities S in the structure are two tanks or containers 6 for the freezing medium which in the preferred embodiment is liquid nitrogen or carbon dioxide.
  • the pallet 7 and the collar 8 placed on it are substantially of conventional design.
  • the pallet consists preferably of light-metal or plastic material and is provided with insulation.
  • the pallet collar 8 may consist of multi-layer corrugated fibre-board, aluminium plate with insulation layers of cellular material or the like.
  • Each tank 5 which is enveloped by an insulation, is provided with a filling pipe 9 provided with a quick coupling and an automatic valve permitting filling of freezing medium with a simple manipulation.
  • Each tank has an outlet pipe 10.
  • the outlet pipe 10 opens into a pipe system 12 arranged along the bottom plate 4 and including pipes 13 extending diagonally across either half of the structure towards pipes 14 extending along the long sides of the top structure.
  • the pipes 13, 14 extend from either tank to the corners situated at the nearest respective tank as well as to the corners situated beyond the other tank.
  • the pipe ends at all the corners have nozzles 15 which thus can be reached by freezing medium both from the nearest tank and from the remote tank.
  • the nozzles are permanently open and directed downwards. As long as there is liquid freezing medium in one of the tanks it-will be ejected in evaporated state through the nozzles.
  • the pipe system may serve as an anchoring system for rods or the like designed to carry hooks for suspended goods.
  • the tanks 6 in the top structure are filled with freezing medium from a preferably stationary container.
  • the pallet is ready for transport.
  • the liquid medium starts to evaporate, under the influence of the ambient temperature and to flow out in gaseous state through the nozzles 15 and to fill up the space inside the pallet.
  • evacuation openings indicated by 16, at the center of the top structure.
  • the top structure On arrival with the consumer the top structure is lifted off and withdrawn for return transport and. reuse together with pallets and the like.
  • the tanks and the insulation around them are adapted to permit evaporation of a predetermined amount of liquid medium per unit of time.
  • the tanks 6 are adjusted so that the amount of gas evaporated from one tank during the predetermined time unit is sufficient to keep the transport compartment at the temperature required for cold transport.
  • only one tank is filled with liquid freezing medium. If the structure is to be used for transport of deep-frozen goods both tanks are filled and both of them are emptied within the same time unit as the medium gradually evaporates and flows out through the nozzles 15.
  • the embodiment shown in Fig. 3 differs from that of Figs.
  • top structure in that the top structure is modified so as to permit fitting on the top of it a per se known pallet 7' in inverted position.
  • Various designs of that type of pallets are known which are so constructed that in one position they function as a bottom and support for the load and in inverted position they can be fitted as a top closure for a pallet collar placed on the first pallet.
  • the upper inverted pallet 7' is intended to receive and fix another loaded pallet placed on the top.
  • the top structure according to Fig. 3 has a modified frame 1' adapted to be fitted inwards against the pallet collar 8 to receive the rim 17 of the inverted upper pallet 7'.
  • the frame 1' has at its top a circumferentially extending recess 18 constituting an abutment for the pallet flange and the vertical side of which is alined with the plane of the inside of the pallet collar 8.
  • this design substantially agrees with that of Figs. 1 and 2.
  • the embodiment according to Fig. 4 is primarily intended for use for palletized loads where a bottom pallet 7' supports the load and a pallet collar surrounding the load and against the upper edge of which an inverted pallet 7' rests.
  • the pallet collar 8' is taller than the load L.
  • the frame 1" of the top structure is in this case adapted to be pushed down into the pallet collar above the load.
  • hooks 19 Arranged at the top of the frame 1" are hooks 19, a projecting flange or the like intended to engage with the upper rim of the pallet collar 8. After su ⁇ h engagement an inverted pallet 7' can be placed on the edge of the pallet collar and the hooks or flange in the usual manner.
  • the design of this structure may be simplified.
  • the frame 1' of the top structure must be able to transmit the weight from an overlying load to the pallet collar.
  • the top structure is entirely unloaded and therefore the frame can be of a simple design.
  • the structure according to the invention is extremely simple, easily handled and inexpensive. The uncomplicated construction makes it possible to use the structure repeatedly without any maintenance worth mentioning.
  • Decisive for the gas emission is the insulation capacity of the insulation layers of the tanks and the ambient temperature, Valves, thermostats and other checking means are quite unnecessary. Since a pressureless freezing medium, preferably liquid nitrogen, is used it is possible to manufacture the tanks at a low cost in contrast to pressure vessels.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Warehouses Or Storage Devices (AREA)
  • Pallets (AREA)

Abstract

Une structure de couvercle de fermeture pour un compartiment de transport formé d'une palette avec un collier dit de palette ou autre ou d'un autre conteneur ouvrable vers le haut, est adaptée pour fermer vers le haut le compartiment et maintenir froids les articles contenus dans le compartiment de transport. La nouvelle caractéristique consiste dans le fait qu'un réservoir ou conteneur (6) pour un milieu de refroidissement ou de congélation à l'état liquide est accomodé dans la structure de couvercle, ce réservoir étant pourvu d'un ajutage ouvert en permanence (15) au travers duquel le milieu après évaporation est adapté pour sortir et s'écouler dans le compartiment sous la structure de couvercle.A closure cover structure for a transport compartment formed by a pallet with a collar said to be a pallet or the like or of another container which can be opened upwards, is suitable for closing the compartment upwards and keeping the articles contained cold. in the transport compartment. The new feature consists in the fact that a tank or container (6) for a cooling or freezing medium in the liquid state is accommodated in the cover structure, this tank being provided with a nozzle open permanently (15 ) through which the medium after evaporation is adapted to exit and flow into the compartment under the cover structure.

Description

Top structure for a cooled, transport compartment
The present invention relates to a top structure for a transport, compartment formed of a pallet witn a so- called pallet collar or the like or of another upwardly openable container, which structure is adapted to up- wardly close the compartment and to maintain cold in goods contained in the transport compartment, During transport of deep-frozen goods it is required that tne goods be kept at a prescribed storing temperature. When transporting large goods volumes use is made of refrigerator vans provided witn individual freezing systems. Transport of small amounts of goods, for instance deep-frozen foods, to one or a few retailers or consumers by means ot refrigerator vans will come expensive and not very expedient and involves unrational utilization of the refrigerator van. Also deep-rrozen goods are tnerefore orten, for reasons of freight costs, transported on conventional vehicles, wnicn may lead to quality losses and risks for damages.
The object of this invention is to provide a simple and inexpensive structure primarily intended for use in the last part of tne transport chain, i.e. when the large goods volume is divided into small lots to be distributed to consumers who may be spread over a relatively large area. The new feature of the structure according to the invention is that at least one tank or container for cooling or freezing medium in liquid state is accommodated in the structure closing the top of the transport compartment, that at least one permanently open nozzle, debouching towards said comaxtment is connected to said tank or container, and that the tank or container has a filling opening provided with a quick coupling, and the medium is adapted, after bein., filled into the tank, to successively evaporate and in gaseous state to flow out into the transport compartment under the top structure.
The structure according to the invention makes it possible at a low cost to distribute also deep-frozen goods by means of conventional vehicles. A preferred embodiment of the structure according to the invention will be described more fully below with reference to the accompanying drawings, in which:
Fig. 1 is a side view showing partly in section a top structure according to the invention arranged on a pallet provided with a collar;
Fig. 2 is a bottom view of the same top structure;
Fig. 3 is a side view showing partly in section a modified embodiment of the top structure; and
Fig. 4 is a corresponding view of another modified embodiment of the top structure.
The top structure has a body including an outer frame 1 and a transverse support bar 2. A plate or sheet constituting the top side of the structure is designated by 3 while 4 designates a bottom plate. Arranged inside the two box-shaped cavities S in the structure are two tanks or containers 6 for the freezing medium which in the preferred embodiment is liquid nitrogen or carbon dioxide.
The pallet 7 and the collar 8 placed on it are substantially of conventional design. The pallet, however, consists preferably of light-metal or plastic material and is provided with insulation. The pallet collar 8 may consist of multi-layer corrugated fibre-board, aluminium plate with insulation layers of cellular material or the like. Each tank 5, which is enveloped by an insulation, is provided with a filling pipe 9 provided with a quick coupling and an automatic valve permitting filling of freezing medium with a simple manipulation. Each tank has an outlet pipe 10. The outlet pipe 10 opens into a pipe system 12 arranged along the bottom plate 4 and including pipes 13 extending diagonally across either half of the structure towards pipes 14 extending along the long sides of the top structure. The pipes 13, 14 extend from either tank to the corners situated at the nearest respective tank as well as to the corners situated beyond the other tank. The pipe ends at all the corners have nozzles 15 which thus can be reached by freezing medium both from the nearest tank and from the remote tank. The nozzles are permanently open and directed downwards. As long as there is liquid freezing medium in one of the tanks it-will be ejected in evaporated state through the nozzles.
The pipe system may serve as an anchoring system for rods or the like designed to carry hooks for suspended goods.
After the pallet has been loaded and the collar 8 has been put in position the tanks 6 in the top structure are filled with freezing medium from a preferably stationary container. After the top structure has been anchored, if required, the pallet is ready for transport. When one or both tanks have been filled the liquid medium starts to evaporate, under the influence of the ambient temperature and to flow out in gaseous state through the nozzles 15 and to fill up the space inside the pallet. To begin with air contained in the pallet space is forced out and so is later the excess of gasified freezing medium through, evacuation openings, indicated by 16, at the center of the top structure.
On arrival with the consumer the top structure is lifted off and withdrawn for return transport and. reuse together with pallets and the like. The tanks and the insulation around them are adapted to permit evaporation of a predetermined amount of liquid medium per unit of time. In the example shown the tanks 6 are adjusted so that the amount of gas evaporated from one tank during the predetermined time unit is sufficient to keep the transport compartment at the temperature required for cold transport. Thus, in this connection only one tank is filled with liquid freezing medium. If the structure is to be used for transport of deep-frozen goods both tanks are filled and both of them are emptied within the same time unit as the medium gradually evaporates and flows out through the nozzles 15. The embodiment shown in Fig. 3 differs from that of Figs. 1 and 2 in that the top structure is modified so as to permit fitting on the top of it a per se known pallet 7' in inverted position. Various designs of that type of pallets are known which are so constructed that in one position they function as a bottom and support for the load and in inverted position they can be fitted as a top closure for a pallet collar placed on the first pallet. The upper inverted pallet 7' is intended to receive and fix another loaded pallet placed on the top. The top structure according to Fig. 3 has a modified frame 1' adapted to be fitted inwards against the pallet collar 8 to receive the rim 17 of the inverted upper pallet 7'. The frame 1' has at its top a circumferentially extending recess 18 constituting an abutment for the pallet flange and the vertical side of which is alined with the plane of the inside of the pallet collar 8. In other respects this design substantially agrees with that of Figs. 1 and 2.
Also the embodiment according to Fig. 4 is primarily intended for use for palletized loads where a bottom pallet 7' supports the load and a pallet collar surrounding the load and against the upper edge of which an inverted pallet 7' rests. When the structure of Fig. 4 is used the pallet collar 8' is taller than the load L. The frame 1" of the top structure is in this case adapted to be pushed down into the pallet collar above the load. Arranged at the top of the frame 1" are hooks 19, a projecting flange or the like intended to engage with the upper rim of the pallet collar 8. After suσh engagement an inverted pallet 7' can be placed on the edge of the pallet collar and the hooks or flange in the usual manner. In the embodiments of Figs. 3 and 4 in which the top structure is mechanically protected by the inverted pallet placed on its top the design of this structure may be simplified. In the embodiment according to Fig. 3 the frame 1' of the top structure must be able to transmit the weight from an overlying load to the pallet collar. In the embodiment of Fig. 4 the top structure is entirely unloaded and therefore the frame can be of a simple design. The structure according to the invention is extremely simple, easily handled and inexpensive. The uncomplicated construction makes it possible to use the structure repeatedly without any maintenance worth mentioning. Decisive for the gas emission is the insulation capacity of the insulation layers of the tanks and the ambient temperature, Valves, thermostats and other checking means are quite unnecessary. Since a pressureless freezing medium, preferably liquid nitrogen, is used it is possible to manufacture the tanks at a low cost in contrast to pressure vessels.
The invention must not be considered restricted to that described above and shown in the drawings but may be modified in various ways within the scope of the appended claims.

Claims

1. Top structure for a transport compartment formed of a pallet with a so-called pallet collar or the like or of another upwardly openable container, which structure is adapted to upwardly close the compartment and to maintain cold in goods contained in the transport compartment, c h a r a c t e r i z e d in that at least one tank or container (6) for cooling or freezing medium in liquid state is accomodated in the structure closing the top of the transport compartment, that at least one permanently open nozzle (15) debouching towards said compartment is connected to said tank or container, and that the tank or container (6) has a filling opening provided with a quick coupling, and that the medium is adapted, after being filled into the tank, to successively evaporate and in gaseous state flow out into the transport compartment under the top structure.
2. Top structure as claimed in claim 1 , c h a r a c t e r i z e d in that two or more tanks or containers (6) are arranged in the structure (1 - 4) and that the tanks are connected each one to a pipe system in which the nozzle or nozzles (15) are provided.
3. Top structure as claimed in claim 2, c h a r a c t e r i z e d in that outlet nozzles (15) are provided at least at the corners of the top structure.
4. Top structure as claimed in claim 1, c h a r a c t e r i z e d in that the tank or tanks (6) are surrounded by an insulation controlling the evaporation of the liquid medium.
5. Top structure as claimed in claim 1, c h a r a c t e r i z e d in that the structure alone closes the compartment formed of the pallet and the pallet collar.
6. Top structure as claimed in claim 1, c h a r a c t e r i z e d in that the structure is adapted to rest against the top edge of a pallet collar while it supports an inverted pallet intended for use as an interconnecting means for a pallet placed on the top.
7. Top structure as claimed in claim 1, c h a r a c t e r i z e d in that the structure is adapted to be moved downwards inside a pallet collar or a similar wall structure defining a load compartment and to be carried by the rim thereof, whereby an inverted pallet or the like can be fitted against the edge of the pallet collar.
EP84902628A 1983-07-11 1984-07-04 Top structure for a cooled, transport compartment Expired EP0153326B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84902628T ATE48911T1 (en) 1983-07-11 1984-07-04 LID STRUCTURE FOR REFRIGERATED TRANSPORT COMPARTMENT.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
SE8303938 1983-07-11
SE8303938A SE443868B (en) 1983-07-11 1983-07-11 SHIPPING DEVICE FOR TRANSPORT CONTAINERS EQUIPPED FOR KEEPING CLEARANCE OF COOLS IN THE TRANSPORT AREA OF EXISTING GOODS
US52973883A 1983-09-06 1983-09-06
US529738 1983-09-06

Publications (2)

Publication Number Publication Date
EP0153326A1 true EP0153326A1 (en) 1985-09-04
EP0153326B1 EP0153326B1 (en) 1989-12-20

Family

ID=26658520

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84902628A Expired EP0153326B1 (en) 1983-07-11 1984-07-04 Top structure for a cooled, transport compartment

Country Status (5)

Country Link
EP (1) EP0153326B1 (en)
AU (1) AU575840B2 (en)
DE (1) DE3480807D1 (en)
FI (1) FI850909L (en)
WO (1) WO1985000421A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8619437D0 (en) * 1986-08-08 1986-09-17 Bradley L Storage & refrigeration
SE457204B (en) * 1987-03-25 1988-12-05 Altamon Bv DEVICE FOR A CONTAINER FOR REMOVABLE REFRIGERANT OR FREEZING MEDIUM
FR2802186B1 (en) * 1999-12-13 2002-03-01 Messer France CONTAINER FOR THE REFRIGERATED TRANSPORT OF VARIOUS PRODUCTS AND METHOD FOR ITS CONSTITUTION AND LOADING
CN110228664B (en) * 2019-05-10 2021-07-16 王照云 Packing box

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1864040A (en) * 1929-02-01 1932-06-21 March Culmore Container
US3156105A (en) * 1963-08-09 1964-11-10 Wilburn E Bahner Refrigerated lunch box
FR1493543A (en) * 1966-06-01 1967-09-01 Self-contained cooling assembly construction device
US3410109A (en) * 1967-01-09 1968-11-12 Howard R. Maryland Iceless freezer chest
US3557569A (en) * 1968-10-08 1971-01-26 Holbert R Hill Portable cargo system
SE387916B (en) * 1975-01-28 1976-09-20 Aga Ab DEVICE FOR STORAGE AND TRANSPORT OF TEMPERATURE-PRODUCED GOODS
US4007124A (en) * 1975-02-14 1977-02-08 The Procter & Gamble Company Process for preparing a silicate-pyrophosphate detergent composition
DE3003987C2 (en) * 1980-02-04 1984-10-31 Messer Griesheim Gmbh, 6000 Frankfurt Thermally insulated small container for the transport of refrigerated food for several hours

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8500421A1 *

Also Published As

Publication number Publication date
DE3480807D1 (en) 1990-01-25
WO1985000421A1 (en) 1985-01-31
AU3102484A (en) 1985-02-07
FI850909A0 (en) 1985-03-07
FI850909L (en) 1985-03-07
EP0153326B1 (en) 1989-12-20
AU575840B2 (en) 1988-08-11

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