[0001] This invention relates to improvements to containers particularly suitable for use
as food containers.
[0002] It is well known that in merchandising, packaging of the product to be sold is extremely
important and good packaging can greatly increase the demand for the article. This
applies equally to the food industry, especially the take-away food industry, where
it is very important to provide attractive containers for take-away food.
[0003] The present invention in one form aims to provide an attractive take-away food container
which will be economical to produce so as to enable small quantities of food to be
dispensed therein, attractive and functional. Other objects and advantages of the
invention will hereinafter become apparent.
[0004] With the foregoing and other objects in view, this invention resides broadly in a
container assembly of the type including a bowl portion supported on an upstanding
elongate base portion, characterised in that:
(1) releasable connector means interconnect said bowl portion and said base portion;
(2) said releasable connector means is disposed substantially centrally between the
under and lower extremities of said container assembly, and
(3) said bowl portion and said base portion each taper inwardly from their respective
operative upper and lower ends towards said releasable connector means.
[0005] In order that the invention may be more readily understood and put into practical
effect, reference will now be made to the accompanying drawings which illustrate preferred
embodiments of this invention and wherein:-
Fig. 1 is a cross-sectional view of a two-part container made in accordance with the
present invention;
Fig. 2 and Fig. 3 are exploded views of a further embodiment of the invention from
below and above respectively, and
Fig. 4 is a side view of yet a further embodiment of the invention.
[0006] As shown in Fig. 1, the food container 10 is a two-part container comprising a top
bowl portion 11 and a base portion 12, each of which taper from their outer ends towards
their spigot/socket connection assembly 9 so that when dismantled a plurality of the
bowls may be stacked within one another and similarly, a plurality of base portions
12 may be stacked within one another to facilitate packaging, storing and transportation.
For this purpose, the sides of the components are suitably formed with a seven degree
taper. The bowl portion 11 in the illustrated embodiment has a capacity of approximately
six hundred millilitres which is suitable for a take-away food serve. However, this
may vary from say five hundred millilitres to a litre as required.
[0007] The bowl portion 11 is formed with a centrally disposed cylindrical socket 13 to
receive the upper tapered spigot end 14 of the stem 15 whereby the portions may be
pushed firmly together to provide a releasable but firm connection between the parts
which may be made and released quickly while at the same tine maintaining a secure
connection in use. For this purpose, the spigot end 14 is provided with internal stiffening
ribs 16 which extend from the upper end of the stem downwardly past the lower edge
of the socket 13.
[0008] The open end of the bowl portion is provided with an outwardly extending peripheral
flange 17 extending therearound for the purpose of securing thereto a clip-on type
lid 18 and in this embodiment the base portion 12 is similarly formed with a peripheral
flange 19 having identical proportions to the flange 17 whereby the lid 18 when removed
from the bowl portion 11 may be clipped about the base portion 12. This has the advantage
that in use the person consuming the contents of the container can remove the lid
and secure same to the base whereby it remains integral with the container and does
not have to be otherwise disposed of. Furthermore, it remains quickly accessible for
replacement onto the bowl portion 11 should the contents need to be stored for later
consumption.
[0009] A further advantage of the present invention is the formation of the spigot/socket
connector assembly 9 adjacent the bottom of the bowl portion 11. This arrangement
has the advantage that the joint at this point is operatively stable as opposed to
say forming the bowl portion and stem integrally and securing the lower end of the
stem into a supporting base at which position the dislocation forces are much greater,
as a result such connection would be extremely prone to failure. Furthermore, in order
to achieve the required physical size as outlined above, the overall height of the
container 10 is about 22 cm. and the formation of the joint at the base of the bowl
reduces the overall length of each component to approximately one-half the overall
length of the assembly whereby each component may be formed by injection moulding
in general purpose polystyrene using relatively small moulding apparatus as compared
with the apparatus which would be necessary to form say the combination bowl and stem
in one piece, with say a removable base plate.
[0010] In addition, it is very difficult to cool the inside core of a mould say 20 cm. long
as the heat build- up requires extra curing time which in turn slows down the production
cycle. This causes the unit cost to be increased. If the long curing time is not provided
then the possibilities of producing deformities will be greatly increased and this
will further add to the unit cost of the article.
[0011] A further disadvantage of forming the container in one piece is that thicker wall
sections would be required for the longer flow paths to ensure that the cavity of
the mould was completely filled with the polystyrene, and this would add to the material
cost of the article. Thus, by forming the spigot/socket joint at the base of the container
it is possible to form the article at a faster production rate on simpler machinery
so that the manufacturing costs can be greatly reduced as can the material cost, due
to the thinner wall thickness of the moulding which is possible due to the small physical
size of each component being moulded.
[0012] Further embodiments of the invention are shown in Figs. 2 to 4. In the embodiment
shown in Figs. 2 and 3 the socket connector portion 13a extends upwardly within the
bowl portion 11a so as to conceal the joint, while in the embodiment illustrated in
Fig. 4, the spigot end 14b is stepped inwardly from the stem 15b so that the external
diameter of the socket portion 13b may be substantially identical to the external
diameter of the upper end of the stem 15b.
[0013] These embodiments also illustrate obvious variations in the shape of the bowl portion.
[0014] Of course,the shape and size of the bowl may be varied as may the stem, but it is
preferred that several bowl variations be provided each of which may connect to the
common stem. In use, when the container is used as a hot food container, the consumer
may support the container by the stem instead of having to hold a hot food container
by the actual container portion itself which, of course, can be very hot and uncomfortable
to hold.
[0015] Preferably, the container is formed of G.P. styrene which is a clear plastic having
a glass-like appearance to enhance the appearance of the container but of course,
it may be made of other materials as desired. Additionally, the connection between
the base portion and the bowl portion may be a push-in connection as shown or it may
include possible locking means such as a bayonet connection or a threaded connection.
[0016] It will of course be realised that while the above has been given by way of illustrative
example many modifications of constructional detail and design may be made to the
above described embodiment by persons skilled in the art without departing from the
broad scone and ambit of the invention as is defined in the appended claims.
1. A container assembly of the type including a bowl portion supported on an upstanding
elongate base portion, characterised in that;
(1) releasable connector means interconnect said bowl portion and said base portion;
(2) said releasable connector means is disposed substantially centrally between the
upper and lower extremities of said container assembly, and
(3) said bowl portion and said base portion each taper inwardly from their respective
operative upper and lower ends towards said. releasable connector means.
2. A container assembly according to Claim 1, wherein said releasable connector means
comprises a socket and spigot assembly, one said portion being provided with a socket
and the other said portion being provided with a complimentary spigot and said socket
and said spigot being adapted to be joined together to form said socket and spigot
assembly.
3. A container assembly according to Claim 2, wherein said bowl portion is provided
with a cylindrical socket extending downwardly from the underside thereof, and wherein
the spigot on said base portion tapers inwardly towards its operative upper end.
4. A container assembly according to Claim 2, wherein said bowl portion has a capacity
of between 500 millilitres and one litre.
5. A container assembly according to Claim 4, wherein said bowl portion and said base
portion are moulded from a plastics material.
6. A container assembly according to Claim 5, wherein said plastics material is general
purpose polystyrene.
7. A container assembly according to Claim 4, wherein said base portion includes a
lower part having a configuration substantially identical to the top part of said
bowl portion.
8. A container assembly according to Claim 7, wherein said lower part and said top
part are each provided with an outwardly extending flange therearound to enable a
covering lid to be clipped to either said bowl portion. or said base portion.
9. A container assembly substantially as hereinbefore described with reference to
the accompanying drawings.