U.S. patent number 3,565,281 [Application Number 04/782,895] was granted by the patent office on 1971-02-23 for container.
This patent grant is currently assigned to Phillips Petroleum Company. Invention is credited to Stafford D. Collie.
United States Patent |
3,565,281 |
|
February 23, 1971 |
CONTAINER
Abstract
A container is formed of a generally bowl-shaped receptacle
which is open at the top. The bottom of the receptacle is provided
with a depending shoulder having a recess in the inner surface
thereof. A base is secured to the receptacle by means of locking
arms which engage the recess in the shoulder. The top portion of
the base is sufficiently flexible to permit the two sections of the
container to be snapped together when assembled.
Inventors: |
Stafford D. Collie (Kansas
City, MO) |
Assignee: |
Phillips Petroleum Company
(N/A)
|
Family
ID: |
25127524 |
Appl.
No.: |
04/782,895 |
Filed: |
December 11, 1968 |
Current U.S.
Class: |
220/506; 220/605;
D7/558 |
Current CPC
Class: |
B65D
11/02 (20130101); B65D 11/20 (20130101) |
Current International
Class: |
B65d 007/42 () |
Field of
Search: |
;220/69,68,23,83,97(C),97(F) |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
Primary Examiner: Joseph R. Leclair
Assistant Examiner: James R. Garrett
Attorney, Agent or Firm: Young & Quigg
Claims
I claim:
1. A container suitable for use in packaging foodstuffs and the
like comprising a generally bowl-shaped receptacle open at the top,
the bottom of said receptacle being provided with a circumferential
depending shoulder the inner surface of which is provided with a
continuous circumferential recess, the portion of said inner
surface below said recess being convex in radiant cross section and
the portion of said inner surface above said recess being concave
in radial cross section and a base secured to said receptacle, the
top of said base being provided with a plurality of raised radially
extending locking arms, the outer surfaces of which are of
substantially the same configuration as the inner surface of said
shoulder the top portion of said base being sufficiently flexible
to cause the outer surfaces of said projections to mate with the
inner surface of said shoulder and be locked therewith when the
container is assembled by said base being positioned adjacent said
receptacle and a force being applied to the central region of said
base in a direction toward said receptacle.
2. The container of claim 1 in which said base is of generally
bowl-shaped configuration and is inverted relative to said
receptacle, said base being of smaller size than said receptacle to
form a compote dish.
3. The container of claim 1 wherein said shoulder has a flat lower
surface, the peripheral top region of said base has a flat upper
surface, and said locking arms are integral with said base and
extend upwardly from the central region of the top portion
thereof.
4. The container of claim 1, further comprising a generally flat
member positioned within said receptacle and extending across the
bottom thereof, said member engaging the sidewalls of said
receptacle to form the interior bottom of said receptacle.
Description
In the food packaging industry, considerable effort has been made
in recent years to provide containers which are sufficiently
attractive and functional to be used as serving dishes. This is
particularly true in the packaging of such foodstuffs as dips,
nuts, candies, margarine and the like. The present invention
provides a container which is particularly suitable for this
purpose.
In accordance with this invention, a container is provided which is
constructed of a generally bowl-shaped receptacle having a base
secured thereto. The receptacle is provided with a depending
shoulder, the inner surface of which is provided with a recess
which serves to lock the base to the receptacle. The top portion of
the base is provided with a plurality of locking arms, the outer
edges of which are provided with projections which engage the
recess in the shoulder of the receptacle. The base is formed of a
material which has a certain flexibility and is of such a
configuration as to permit the locking arms to be snapped into
place when the container is assembled. The base can advantageously
be in the shape of an inverted bowl such that the final container
has the general configuration of a compote dish.
FIG. 1 is an elevation view of the assembled container of this
invention. FIG. 2 is a top view of the base of the container of
FIG. 1. FIG. 3 is a view, shown partially in section, of the
latching mechanism of the container. FIG. 4 is a sectional view of
a portion of the assembled container having a false bottom member
therein.
Referring now to the drawing in detail and to FIG. 1 in particular,
there is shown a container 10 which is formed of a generally
bowl-shaped receptacle 11 and a base 12. Receptacle 11 is open at
the top to permit the container to be filled with the material to
be packaged and to serve as a serving dish for this material. After
filling, a lid of any suitable configuration can be secured to the
top of receptacle 11. As illustrated, base 12 can advantageously be
in the form of an inverted bowl so that the final assembled
container is in the shape of an attractive compote dish.
The container of FIG. 1 is constructed of two separate elements
which are secured together when the container is assembled. As
illustrated in FIG. 2, the top of base 12 is provided with a
plurality of raised locking arms 13 which can form an integral
portion of the top of the base. As illustrated in FIG. 3,
receptacle 11 is provided with a circumferential depending shoulder
14 having a flat lower surface. The inner surface of shoulder 14 is
provided with a recess 16 which serves to receive projections 15
which form the ends of locking arms 13. The container is assembled
by positioning receptacle 11 on base 12 in the position illustrated
in FIG. 3. The top portion of base 12 is formed of a somewhat
flexible material which is of such a configuration that the center
of the base can be snapped upwardly by applying a force to the
central region of the top of the base. This serves to snap
projecting arms 13 upwardly so that projections 15 engage recess
16, as illustrated in FIG. 4. The top of base 12 thus has two
stable positions, and can be deformed from one position to the
other by the application of a force to the central region of the
base top. The outer ends of locking arms 13 serve as pivot points
for this movement. The peripheral region of the top of base 12 has
the same general configuration as the bottom of receptacle 11 so
that the two members fit together tightly.
It should be evident that the container of this invention can be
formed of any convenient material. This container is advantageously
formed of thermoplastic materials such as polyolefins or
poly(vinylchloride), for example, because such materials are easy
to mold, are light in weight, and are relatively inexpensive. They
also provide the needed flexibility to permit the two members to be
snapped together. It is not necessary that the top and bottom be
formed of the same material. However, the base must be formed of a
material which is sufficiently flexible to permit the locking arms
to be snapped into place when the container is assembled.
From an inspection of FIGS. 3 and 4, it can be seen that an annular
depression 18 is formed in the region of shoulder 14. In the
packaging of certain materials, it is desirable to eliminate this
depression in order to permit the material to be removed more
readily. This can be accomplished by the addition of a false bottom
19 which is positioned within receptacle 11 and extends between the
sidewalls thereof. In the packaging of liquid and semiliquid
materials, member 19 can be a disc sealed to the wall of receptacle
11 to prevent the contents of the receptacle from entering region
18.
In view of the foregoing description, it can be seen that a low
cost, attractive container for foodstuffs and the like has been
provided in accordance with this invention. The upper receptacle
and the base are transported separately to a packaging plant in
which the container is filled. These two members are of such
configuration that they can be stacked for convenient
transportation and storage. The container is readily assembled by
placing the receptacle on the base and snapping the locking
mechanism in place.
While this invention has been described in conjunction with
presently preferred embodiments, it should be evident that it is
not limited thereto.
* * * * *