ARRANGEMENT IN A DOUBLE-WALLED CONTAINER, ESPECIALLY A TRANSPORT CONTAINER

DISPOSITION DE CONTENEUR DOUBLE-PAROI, PARTICULIEREMENT UN CONTENEUR SERVANT AU TRANSPORT

English Abstract

Abstract.
An arrangement in a double-walled container, especially a
transport container, where at least one pipe is
provided in the interspace between an outer wall and an
inner wall, with a number of outlets , which are
passed water-tightly through the inner container wall.
The ends of pipe, or pipes, respectively, are
passed out through the oter container wall in the shape
of sockets which are provided with connections. Outlet
sockets are provided in a well-shaped recess in the
container wall, so that sockets with connections
sit inside the external limit of the container.

Claims

CLAIMS:
An arrangement in double-walled containers, especially in a
transport container, c h a r a c t e r i z e d i n that
in the interspace between an outer wall , and an inner
wall at least one pipe is provided having a
number of outlets which are extended water-tightly
through the inner container wall , and that the ends of
pipe , or pipes , respectively, are passed
through the outer container wall in the shape of pipe
sockets which are provided with connections.
An arrangement as stated in claim 1, in which the container
is manufactured from plastic material, c h a r a c t e r-
i z e d i n that outlets are firmly moulded into
inner container wall
3.
An arrangement as stated in claim 1 or 2,
c h a r a c t e r i z e d i n that outlet sockets I of
pipes are provided in a well-shaped recess in the
container wall, so that sockets with connections
sit inside the external limits of the container.
An arrangement as stated in one or several of the preceding
claims, c h a r a c t e r i z e d i n that the outlets
have the shape of niples which on the outside are
provided with transversal ribs to ensure that they are firmly
moulded in the container wall .

Description

2030~61
The present invention relates to an arrangement in a double-
walled container, especially a transport container. The
expression double-walled in this connection means double
walls and a double bottom.
The klnd of containers which are intended in connection with
the invention are relatively large containers, e.g. con-
tainers having a transport volume of 300 liters. Such
containers are much used for transport and freezing of fish
in blocks. Being double-walled the containers will obtain
high rigidity with low expenditure of material, and will
have relatively good thermal insulation.
It is an ob~ect of the present invention to propose an
improvement of containers of the above mentioned kind, so
that the containers may be used for other purposes, and
provide advantages in conventional use.
A new application of such containers will be transport of
fish for stocking, e.g. fish for the fish breeding industry.
To day, fish for stocking, and the like must be transported
by special vehicles or special tanks. This is expensive as
well as often cumbersome. In connection with the invention it
is, among others, an ob~ect to be able to use common
transport containers for transport of fish for breeding. Such
transport containers are inexpensive and may readily be moved
across short distances and be transported by the aid of
common vehicles across longer distances.
According to the invention this is achieved by an arrangement
in double-walled containers which is characterized by the
fact that at ~east one pipe with a number of outlets is
provided in the interspace between the inner and outer wall
and is extended in a water-tight manner through the inner
container wall, and that the ends of the pipe are extended

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through the outer container wall in the shape of a socket
piece which is provided with a pipe connection.
By the aid of the arrangement according to the invention
thawing of fish frozen in blocks in the container may be sped
up by pumping a thawing medium into the container through the
pipe. On the other hand, fresh fish, e.g. on board of a
fishing vessel or during transport may be supplied with a
coolant, e.g. supercooled sea water, so that fish may be
stored for a longer time in a fresh, non-frozen state.
As regards transport of, e.g. fish for breeding, the
transport container is filled with water and during transport
oxygen may be supplied to the water in the contalner through
the piping system, and fish for breeding may thus stay for a
long time in the container.
The invention is explained in more detail below with
reference to an embodiment of the invention.
Figure 1 shows the container from above.
Figure 2 is a sectional view through the container of
Figure 1, and
Figure 3 shows a section through the inner wall of the
container with a nozzle.
The double-walled container according to the embodiment is a
standard transport container with a transport volume of 300
litres. The container has an inner wall 1, an outer wall 2,
an inner bottom 3, and an outer bottom 4. In the double
bottom 3, 4 through ducts 5 and 6 are provided for insertion
of the fork of a fork truck. Between inner and outer bottom
3, 4 of this embodiment two separate piping systems 7, 8 are
provided. Five nozzle niples 9 are connected to pipe 8. Pipe
7 is extended through inner wall 1 and ends with a socket 11

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in a well-shaped recess 10. Socket 11 is provided with a
connection 12 for ~oining with an external system for supply
of gas or liquid. Pipe system 8 is provided with ten nozzles
9 and, like pipe 7, extendss outwards through inner wall 1
and ends in well 10 in the shape of a socket 11 with a
connection 12. Pipe 7 is intended for connection with a
source of oxygen which will provide live fish for breeding
with necessary oxygen during s-torage and transport in the
container.
Pipe 8 is intended for connection with an external source for
supply of a thawing medium, if desired a coolant. By the aid
of a thawing medium fish frozen in blocks may be thawed more
rapidly, and by the aid of a coolant, e.g. supercooled sea
water, fresh fish will have prolonged keeping quality. The
outlets from pipes 7 and 8 have the shape of niples 9 which
were passed through the internal bottom 3 and were firmly
moulded into the latter during production in order to provide
a tight passage.
Mounting of the pipe systems may readily be carried out
during casting of the containers. The whole piping system
with outlet nozzles is placed inside the mould before filllng
with the raw material. By the aid of special fastening polnts
pipes and niples are held in place during casting.
In the embodiment according to the drawing two particular
pipe systems 7, 8 are shown. The pipe systems may have other
designs, and it may also be considered, only to place one
pipe system in a container which is designed for a special
appl i cation.
When the container is used for transport of fish for
breeding, the transport may be carried out without harmlng
the fish, since the whole supply system for oxygen sits
outside the internal bottom 3. There will thus be no
installations inside the container which might harm the fish.

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If the container is to be used for a thawing contalner or a
cooling container the whole plpe system will be a firmly
integrated part and reversal/emptylng may be carrled out
wlthout any damage to pipes or niples.
Because there is ready access to the pipe ends they may
readil,y be blinded from outside, so that the containers may
also be used for other and more conventional purposes.

Representative Drawing