Information
-
Patent Grant
-
6786351
-
Patent Number
6,786,351
-
Date Filed
Wednesday, October 3, 200123 years ago
-
Date Issued
Tuesday, September 7, 200420 years ago
-
Inventors
-
Original Assignees
-
Examiners
Agents
- Polsinelli Shalton Welte Suelthaus PC
-
CPC
-
US Classifications
Field of Search
US
- 220 780
- 220 DIG 27
- 220 698
- 220 745
- 220 748
- 220 749
- 220 3661
- 220 913
- 220 3671
- 220 571
- 206 508
-
International Classifications
-
Abstract
A food container preferably for heated food, has a lid member and a base member. The base member has complimentary embossed portions in the bottom of the base member to engage a complimentary indented portion in the top surface of the lid member. The retaining mechanism allows containers to be stacked so as to secure each container while allowing steam to escape from the lid of a container. Also, a fluid return system retains fluid in the container and promotes flow of fluid into the bottom of the container.
Description
BACKGROUND OF THE INVENTION
The technical character of the present invention relates in general to food containers used in storing and displaying heated foods and pertains more particularly to chicken roaster containers. The food container of this invention is an improvement over conventional chicken roaster packages in that it features a fluid channel return system and an improved stacking system incorporating a steam escape mechanism in the lid and a retaining mechanism in both the base and in the lid.
Food containers similar to the present invention are often used in scenarios where a person will prepare and sell a food item so that it is prepared and immediately ready to eat. When people purchase food contained in the food containers, oftentimes the containers are not kept in a flat surface such that condensation and oils leak from the container.
A technical problem recognized with respect to conventional food containers relates to leakage of condensation and oils from the container through the seal area. Interlocking arrangements of conventional food containers do not consistently or effectively retain the liquid or prevent condensation or oil from seeping through the interlocking arrangement of a food container.
In addition, with the conventional base and cover combination it is generally necessary to guard against release of steam and hot liquid when removing the cover after heating any food. For example, it is common to place one or more vent openings in the base, the cover, or both in order to allow the escape of steam generated during heating. Conventional food service industry container packaging is often inadequate and does not provide a lid and container that fit together to provide more than minimally acceptable leak resistance. A drawback with conventional food containers includes an inability to provide more than minimally acceptable leak resistance during transportation of the package with heated contents or during the removal of the lid.
Existing lid and container combinations exhibit additional drawbacks, such as lack of acceptable effectiveness with respect to segmented containers, particularly if the food container includes a steam escape feature. A drawback to the steam escape feature exists in either the release of too much or too little steam. If too much steam is allowed to escape from the base and cover combination, then dry food may be the result. Likewise, if steam does not escape from a container, then too much condensation may collect within the container, resulting in food that is too moist.
Another technical problem associated with conventional food containers relates to the loss of liquid from inside the base and cover combination during heating. The heating of the liquid within the base and cover combination may assist the heating process since at least a portion of the heat absorbed by the liquid is transferred to the food. A reduction of this liquid within the base and cover combination could result in food that is not heated to a desired temperature.
Another technical problem associated with conventional food containers is that some containers do not feature a steam escape mechanism. If conventional containers do contain such a mechanism, such a mechanism does not promote or allow containers to be stacked efficiently, such that steam can escape when the containers are assembled and stacked.
Another technical problem associated with conventional food containers is that rarely do food containers contain any kind of mechanism to easily separate the lid from the bottom when the food container is assembled.
Thus, the foregoing solutions to the problem of excess moisture generated during heating of the food in the base and cover combination potentially creates additional problems related to the manner in which the base and cover combination functions and the manner in which the consumer reacts to the heated food. A desirable solution to this and related problems of heating and palatability of the food would provide a mechanism for the release of some liquid and return it back into the base and cover combination.
Accordingly, it is an object of the present invention to provide a food container with improved performance relative to the performance of other food containers for use in heating or transporting foods. With the food container of this invention, food, as well as the condensation and any oils or other liquid from the food, may be retained within the container without accidental leakage. In addition, when the container is assembled, the containers can be stacked in such a way that will reduce the likelihood that the stack of containers will fall. Moreover, when the containers are assembled and stacked, steam may still escape from the stacked, individual containers.
These and other objects and features of the present invention will be better understood and appreciated from the following detailed description of one embodiment thereof and the descriptions of the figures, selected for purpose of illustration and shown in the accompanying drawings.
SUMMARY OF THE INVENTION
Embodiments, including the technical features of the invention for which protection is sought, are illustrated and described herein and include a food container generally comprising a base and a lid, which have the features as herein described. The food container of the present invention addresses the aforementioned technical problems by retaining fluid such as condensation and oil and by promoting the downward flow of the fluid into the base member of the container. When the lid is engaged with the base of the container, the leakage of excess fluid is inhibited by the fluid return system. The fluid return system comprises one or more notches in the upper rim, sidewalls, and a channel in the upper rim of the base member. The positioning of the notches, the location of rib members around the lid member and the base member, and the positioning and variety of heights of the walls in the upper edge rim of the base, promote the retention of fluid within the container.
The present invention also overcomes technical problems found in conventional food containers by allowing steam to escape when containers are assembled and stacked. The containers remain restrained by a retaining mechanism formed into the lid and the base.
The present invention also provides tabs in both the base and the lid of the container to promote easy removal of the lid from the base.
These and other objects and features of the present invention will be better understood and appreciated from the following detailed description of one embodiment thereof, selected for purposes of illustration and shown in the accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1
is a perspective view of the food container of the present invention when the lid member is connected with the base member such that the container is in the assembled state;
FIG. 2
is a side view of the food container of the present invention when the container is assembled;
FIG. 3
is another side view of the food container of the present invention when the container is assembled, showing the length of the food container;
FIG. 4
is plan view of the interior of the base member of the present invention;
FIG. 5
is plan view of the exterior or bottom of the base member of the present invention;
FIG. 6
is plan view of a complimentary embossed portion in the base member;
FIG. 7
is a perspective view of the notches that partially form the fluid return channel system of the present invention;
FIG. 8
is plan view of the lid member of the present invention;
FIG. 9
is a side view of the lid member of the food container;
FIG. 10
is another side view of the lid member of the food container, showing the length of the lid member;
FIG. 11
is a cross-sectional view taken along line
11
—
11
in
FIG. 8
;
FIG. 12
is a cross-sectional view taken along line
12
—
12
in
FIG. 2
;
FIG. 13
is a cross-sectional view taken along line
13
—
13
in
FIG. 2
;
FIG. 14
is a cross-sectional view of the length of two assembled food containers of the present invention when one container is stacked upon the other; and
FIG. 15
is another cross-sectional view of two assembled food containers of the present invention when one container is stacked upon the other.
DETAILED DESCRIPTION
Referring now to the drawings, there are shown preferred embodiments for the food container of this invention, including the technical features of the invention for which protection is sought. The food container is described in connection with a chicken roaster where a chicken is prepared and stored in the present invention. The food container has at least two distinguishing features over the prior art, which are a fluid return channel system and a retaining system when containers are stacked. The fluid channel return system comprises a series of channels formed in the upper rim of the base member. The system prevents leakage when the lid member and base member are engaged, and it promotes the downward flow of moisture into the base member. The stacking system features a steam escape feature and a retaining mechanism formed in the lid and the base by a plurality of various height arrangements and a fluid channel return system. The steam escape mechanism allows steam to escape when the containers are stacked and contain either heated or frozen contents.
The drawings show the food container or chicken roaster package
10
generally comprising a lid
12
and a base
14
. The chicken roaster package
10
includes a fluid return channel system
18
, which generally comprises one or more notches
30
and a plurality of sidewall ribs
20
formed in the sidewall
56
. The system may also include a lid member lock rim
110
.
The base member bottom comprises a series of channels and ribs such that the food retained in the container is elevated from residual condensation and oils. Specifically, the base member
14
comprises a base bottom
32
, sidewall
56
, and an upper rim
98
, wherein the fluid return channel system is formed into the upper rim
98
and the sidewalls
56
. The base bottom also includes a series of channels including at least two outer edge channels
78
. The channels
78
and the returning channel
48
cooperate in the base member of the container to retain of any moisture or fluid from the heated food or the condensation formed from food that is defrosting in the container. Each
78
is formed by rib members
54
and
84
. Generally, the rib members comprising the uniform rib member
68
and rib members
84
complimentary embossed portions
34
,
66
, and the retaining mechanism
36
support a food item.
The fluid return channel system is best shown in the embodiment in FIG.
7
. In a preferred embodiment, the fluid return channel
30
comprises two undercuts forming a notch
30
having a vertex
120
in the base member upper rim
98
to promote the downward flow of fluid into the base member bottom, wherein each notch
30
is an acute angle formed in the upper edge of the base member
14
. It is understood that the fluid return channel may comprise a notch, as shown and described, or another specific shape or indentation in the base member upper rim
98
that would promote the downward flow of liquid or into the base member as well as the retention of any liquid in the base member of the container.
In one preferred embodiment of the invention, nine fluid return channels, or notches,
30
are formed into the base member upper rim
98
. It is understood by one skilled in the art that any number of these fluid return channels in the base bottom member will promote downward flow of moisture and achieve the desired results of the present invention.
FIG. 4
shows the notches
30
placed at various intervals and surrounding the base member upper rim
98
.
FIG. 7
shows a notch
30
that is formed in the base member upper rim
98
of the base member
14
, interrupting the continuous formation of the base member rim
98
.
The base member also includes a retaining mechanism
36
, which comprises a series of channels and embossed portions, as shown in FIG.
15
. More specifically, a series of embossed portions
86
and a series of channels
88
,
90
in between the portions
86
form a uniform shape in the base bottom
32
. The uniform shape of the retaining mechanism will be complementary to the shape of the lid member retaining mechanism
38
. The elevated uniform shape of the raised portions
86
forms a base member retaining inner area
96
. In one preferred embodiment illustrated in
FIG. 15
, the plurality of raised portions
86
act as a gripping mechanism for the food item placed in the container. It is understood, however, that the retaining inner area
96
may comprise a flat surface instead of a plurality of raised portions
86
.
The elevated feature of inner area
96
necessarily forms a base member returning channel
48
, and the uniform base rib
68
further comprises the retaining feature.
The base member
14
and the lid member
12
are held together by an interlocking arrangement
28
.
FIG. 12
shows the interlocking arrangement
28
of the present invention where the base member
14
is engaged with the lid member
12
at a point where the fluid channel return notch
30
is not located. At this section of the container, the base member edge lock rim
102
engages lid member lock rim
110
. The base member edge lock rim
102
comprises a base member edge lock rim upper portion
104
and base member interior walls
128
,
130
. The base member interlocking channel
132
comprises opposing interior walls
128
,
130
connected by base member edge lock rim upper portion
104
. The base member edge lock rim upper portion
104
is formed by the intersection of base member upper interior walls
136
,
138
. The intersection of base member upper interior walls
136
,
138
also forms a base member rim groove
100
in the upper rim
98
.
When the lid member lock rim
110
engages the base member lock rim
102
, a sealed channel
122
is formed. The sealed channel
122
may become filled with excess fluid or condensation from the contents of the container. Base member groove
100
, however, extends throughout the entire upper rim
98
of the base member
14
and the vertex
120
of the notch
30
promotes the downward flow of liquid to return the liquid back into the base of the container, thereby achieving one of the objects of the present invention.
The lid member lock rim
110
comprises lid member interior sidewalls
116
,
158
and lid member lock rim top wall
118
, which is connected to each sidewall
116
,
158
. When the lid member lock rim
110
engages the base member edge lock rim, lid member interior surface
114
contacts base member outer surface
126
at one or more locations.
FIGS. 12 and 13
show the lid member engaged with the base member such that the interlocking arrangement
28
provides a mechanism to engage the base
14
with the lid
12
.
FIG. 12
shows the interior lips
146
,
148
contacting the lid member lock rim top wall
118
. The interior lip
146
is formed by the intersection of one of base member interior sidewall
130
and base member upper interior wall
136
. The surface of corner
146
contacts the lid member inner surface
114
, likewise, exterior lip
148
is formed by the intersection of base member interior side wall
128
and base member upper interior side wall
138
.
The perspective view of
FIG. 12
shows the interior lips
146
,
148
such that the points of contact generally between the base member base member interlocking means
82
and the lid member interlocking means
80
, specifically, the lid member lock rim top wall
118
, occur at two locations. The base member outer surface
126
contacts the interior sidewalls
116
,
158
. These various points of contact generally form the seal of the lid member
12
to the base member
14
, and more particularly, form the sealed channel
122
of the base member. Fluid may collect in the sealed channel
122
and fill the channel. The fluid return channel system, however, promotes the flow of any liquid into the container such that the channel
122
should not retain any substantially amount of collected moisture.
FIG. 13
shows the section view of the fluid return notch
30
at the vertex
120
. In this section of the container, the vertex
120
of the notch
30
generally promotes the flow of liquid from an upper portion of the base member rim
98
, specifically in the sealed channel
122
to the bottom of the base.
FIG. 13
also shows fluid flow channel
134
, which is formed by an opening between the base member upper rim
98
and the lid member lock rim
110
and allows the fluid to flow back into the container. In this embodiment, the base member upper exterior surface
126
is a diagonal portion, which comprises vertex
120
of the notch
30
. The base member interlocking channel
132
is formed by the intersection of the two base member interior walls
128
,
130
.
Also, it is shown that the base member edge lock rim
102
and the lid member lock rim
110
contact each other at several locations. First, base member interior wall
128
contacts lid member interior wall
158
and lid member outer edge
140
comes in contact with base member outer edge
142
. In addition, exterior lip
148
contacts the lid member inner surface
114
at a lid member lock rim corner
160
. The absence of an upper portion of the base member lock rim forms a fluid flow channel
134
, which allows and promotes the flow of any excess fluid into the base of the container.
The retaining mechanism of the present invention is formed in both the base member
14
and the lid member
12
. The retaining mechanism of the base member generally comprises a series of channels and embossed portions, and has a uniform shape so as to effectively retain the lid member
12
of a separate food container located under the base member
14
. The base member retaining mechanism
36
comprises a series of embossed portions
86
, which form intersecting channels
88
,
90
. In a preferred embodiment, the raised portions have a square shape and are formed into the base bottom
32
, and add a gripping feature to the base member
14
.
The retaining mechanism
36
is elevated from the base bottom
32
, such that fluid in channels
88
,
90
flows downward into the retaining channel
48
.
FIG. 5
shows that the channels are formed in the base member
14
such that channel
88
is at a slightly lower level than channel
90
. The level of the channels may vary to promote the downward flow of fluid into the outer edge channels
78
,
52
.
The retaining mechanism
36
may also include a region
92
in approximately the same plane as the channels
88
,
90
so that a manufacturer could include a trademark or other type of writing or design in the base member
14
. Similarly, writing could be formed into the base member at any desired location.
The retaining mechanism
38
of the lid member generally has a complementary uniform shape to the base member retaining mechanism
36
and further comprises an embossed portion
38
in the upper surface
46
of the lid member
12
. The embossed portion
38
comprises the lid member upper surface
46
, lid member retaining sidewall
44
, and embossed retaining surface
42
.
When the base member
14
of a container is stacked on a lid member
12
of another container, the containers generally come in contact at two or more locations. First, retaining sidewall
44
contacts the base member retaining exterior sidewall
50
, and the lid member retaining surface
42
contacts the base member retaining channel
48
. In addition, the embossed retaining surface contacts the base member retaining channel
48
. Base member inner retaining channel
48
comprises a channel having a uniform shape, which is uninterrupted by any embossed portions or ribs. Also, the lid member upper surface
46
contacts the uniform rib
68
.
The lid member also contains steam escape openings
16
formed in a vented extension
124
as shown and described herein. The extension
124
is formed in the container and comprises a vented extension wall
108
and an upper surface or platform
106
. In a preferred embodiment, the extension wall
108
is rounded. A flap
26
is formed in the upper surface
106
, which creates a vented opening
16
. The lid member also includes a plurality of ribs
22
.
The base member also includes at least two complementary base member embossed portions
34
,
66
that partially comprise the retaining system. The three layer surface composition of the base member embossed portions
34
,
66
is shown in FIG.
6
. In the preferred embodiment of the present invention, the embossed portions
34
,
66
have different shapes that correspond with the shape of the food container
10
, which is intended to store a chicken. These embossed portions correspond with the vented extension
124
so steam can escape from the openings
16
when a container is stacked on top of another, as shown in FIG.
14
.
The two embossed portions
34
,
66
shown in
FIG. 6
comprise a plurality of incremental surfaces and transition portions, wherein each base member embossed portion
34
,
66
comprises three surfaces: a base bottom inner surface
56
,
68
, a base member embossed portion intermediate surface
58
,
70
, and a base member embossed upper surface
60
,
72
. Intermediate surfaces
58
,
70
comprise the base member uniform rib
68
.
Transition portions connect the various surfaces, and comprise upper embossed transition portion
62
,
74
and a lower embossed transition portion
64
,
76
. The lower embossed transition portions
64
,
76
comprise sidewalls and form part of the base member returning channel
48
.
In a preferred embodiment, the upper surface
72
is at a location higher than the retaining mechanism in the base bottom member
36
of the base
14
. Therefore, the food held within the present invention initially contacts the base member embossed portion upper surface
60
,
72
. Both transition portions
62
,
74
and
64
,
76
allow and promote the flow of juice and fluid from a chicken, for example, held within the food container
10
to flow to the bottom of the base
14
.
The three layer embodiment of the base member embossed portion
34
and
66
allows the base member retaining mechanism
36
and the complementary lid member retaining mechanism
38
to effectively remain engaged while steam escapes from the vented lid member openings
16
. The lid member flaps
26
may contact the upper surface
60
,
72
of the embossed portions
34
,
66
when the containers are stacked, as shown in FIG.
14
.
The present invention also includes one or more tabs in the lid member
12
and in the base member
14
. Lid member tabs
24
are formed by cut-outs from the lid member outer edge
140
. The lid member tab
24
includes an upper surface
154
and a lower surface
156
that remain exposed. Likewise, a tab
40
in the base member
14
comprises an upper surface
150
and a lower surface
152
. The shape of tabs
40
in the rim outer edge
142
are such that the upper surface
150
remains uncovered by the lid member outer edge
140
when the lid member and base member are engaged by the interlocking arrangement
28
.
In operation, each lid member
12
retains the base member
14
by retaining the base member retaining mechanism
36
. The lid member retaining mechanism
38
is formed in the lid member in a shape complementary to the general shape of the base member retaining mechanism
36
. The lid member retaining mechanism
38
is formed by an embossed retaining surface
42
, a retaining sidewall
44
, and upper surface
46
. The base member retaining mechanism
36
is formed by a plurality of raised portions
86
that comprise an inner area
96
having a uniform shape. The retaining mechanism also includes a uniform base rib
68
, wherein the base rib
68
and the inner retaining area
96
form a retaining channel
48
.
Generally, the height of lid member sidewall
44
and corresponding base member retaining exterior sidewall
50
have a uniform shape and determines the effectiveness of the retaining mechanism. In one preferred embodiment, the height of the retaining sidewall
44
ranges from ⅛ inch to ½ inch where the engaging mechanism of each the base member and the lid member has a uniform shape; therefore, the height of the respective sidewall is uniform throughout. Accordingly, the engaging mechanism exterior sidewall
50
will range from approximately ⅛ inch to ½ inch, enabling the base member engaging
36
to be effectively retained within the lid member retaining mechanism
38
.
When the lid member retaining mechanism
38
is engaged with the base member retaining mechanism
36
, the lid member flaps
26
may contact the upper surface of the embossed portion
60
,
72
.
Having described the invention in detail, those skilled in the art will appreciate that modifications may be made of the invention without departing from its spirit. Therefore, it is not intended that the scope of the invention be limited to the specific embodiment illustrated and described. It is not intended that the scope of the invention be limited to the specific embodiments illustrated and described.
Claims
- 1. A food container comprising:a lid member, the lid member including a retaining mechanism; a base member, the base member including a fluid channel return system and a retaining mechanism complementary with the lid member retaining mechanism; and an interlocking arrangement in the lid member and the base member that secures the base member and the lid member.
- 2. The food container as set forth in claim 1 wherein the base member comprises a base bottom, sidewalls, an upper rim, and a series of channels.
- 3. The food container as set forth in claim 2 wherein the series of channels comprise a first base member outer edge channel and a second base member outer edge channel.
- 4. The food container as set forth in claim 1 further comprising a fluid return channel system comprising a fluid return channel.
- 5. The food container as set forth in claim 4 wherein the fluid return channel comprises one or more notches in the fluid return channel, whereby a vertex in the notch promotes the downward flow of fluid into the base member bottom.
- 6. The food container as set forth in claim 4 wherein the fluid return channel system further comprises a plurality of sidewall ribs formed into the upper rim and sidewalls of the base member.
- 7. The food container as set forth in claim 4 wherein the fluid return channel system further comprises a base member lock rim.
- 8. The food container as set forth in claim 1 wherein the fluid channel return system comprises nine notches in an upper rim of the base member.
- 9. The food container as set forth in claim 8 wherein the shape of the retaining mechanism is formed by a plurality of embossed portions and channels.
- 10. The food container as set forth in claim 8 wherein the shape of the retaining mechanism is formed by a retaining inner area having a flat surface.
- 11. The food container as set forth in claim 8 wherein the retaining mechanism further comprises a uniform rib in the base member whereby the rib member contacts an upper surface of the lid member to retain the base member and the lid member.
- 12. The food container as set forth in claim 8 further comprising at least two complementary base member embossed portions.
- 13. The food container as set forth in claim 12 further comprising embossed portions comprising a plurality of elevated and incrementally spaced surfaces formed in the base member.
- 14. The food container as set forth in claim 12 wherein the embossed portions are formed by a base bottom inner surface, a base member embossed portion intermediate surface, and a base member embossed upper surface.
- 15. The food container as set forth in claim 1 wherein the interlocking arrangement in the base member comprises a base member lock rim.
- 16. The food container as set forth in claim 15 wherein the base member lock rim formed a channel further comprises a base member edge lock rim upper portion and base member interior walls.
- 17. The food container as set forth in claim 16 wherein the base member edge lock rim upper portion is formed by the intersection of upper interior walls whereby the intersection of the upper interior walls forms a groove in the base member lock rim.
- 18. The food container as set forth in claim 1 wherein the interlocking arrangement in the lid member comprises a lid member lock rim.
- 19. The food container as set forth in claim 18 wherein the lid member lock rim comprises a channel in the lid member formed by lid member interior sidewalls intersecting with lid member lock rim top wall.
- 20. The food container as set forth in claim 1 wherein the lid member further comprises steam escape openings formed in a vented extension of the lid member.
- 21. The food container as set forth in claim 20 wherein the vented extension in the lid member comprises a vented extension wall and an upper surface.
- 22. The food container as set forth in claim 20 wherein the steam escape openings are formed by flaps in the vented extension lid member.
- 23. The food container as set forth in claim 20 wherein the shape of the retaining mechanism, is formed by a plurality of embossed portions and channels, and wherein the shape of the embossed portions is complementary to the shape of the vented extension of the lid member.
- 24. The food container as set forth in claim 1 wherein tabs for formed by cut-outs in an outer edge of the lid member and in an outer edge of the base member.
- 25. The food container as set forth in claim 1 wherein the lid member retaining mechanism is formed by an embossed surface, a sidewall, and an upper surface.
- 26. A food container comprising:a lid member, the lid member including a retaining mechanism, wherein the retaining mechanism is formed by an embossed surface, a sidewall, and an upper surface; a base member, the base member including a fluid channel return system and a retaining mechanism complementary with the lid member retaining mechanism, wherein the fluid channel return system comprises one or more notches in a fluid return channel, a plurality of sidewall ribs from into an upper rim and sidewall of the base member, and a base member lock rim and wherein the retaining mechanism is formed by a retaining inner area comprising a plurality of embossed portions and channels, a uniform rib, at least two embossed portions comprising a plurality of elevated and incrementally spaced surface having a shape complementary to a vented extension in the lid member; and an interlocking arrangement in the lid member and the base member that secures the base member with the lid member to form the container.
- 27. A food container comprising:a lid member, the lid member including a retaining mechanism, wherein the retaining mechanism is formed by an embossed surface, a sidewall, and an upper surface; a base member, the base member including a fluid channel return system and a retaining mechanism complementary with the lid member retaining mechanism, wherein the fluid channel return system comprises one or more notches in a fluid return channel, a plurality of sidewall ribs from into an upper rim and sidewall of the base member, and a base member lock rim and wherein the retaining mechanism is formed by a retaining inner area having a flat surface, a uniform rib, at least two embossed portions comprising a plurality of elevated and incrementally spaced surface having a shape complementary to a vented extension in the lid member; and an interlocking arrangement in the lid member and the base member that secures the base member with the lid member to form the container.
- 28. A food container comprising:a lid member, the lid member including a vent, the lid member including a lid retaining mechanism, wherein the lid retaining mechanism is formed by an embossed shape in the lid member; a base member, the base member including a fluid channel return system and a base retaining mechanism complementary with the embossed shape of the lid retaining mechanism; wherein the fluid channel return system comprises: one or more notches in an upper rim of the base member and a plurality of sidewall ribs in the base member; an interlocking arrangement of the lid member and the base member that secures the lid member with base member to form the food container; wherein the base member further comprises an embossed channel, a groove, or a combination thereof to provide for the passage of gases, moisture, or mixtures thereof when the base member is stacked on a second lid member having a second vent and a second embossed shape complementary to the base retaining mechanism.
- 29. A food container comprising:a lid member, the lid member comprising an embossed surface, a sidewall, and an upper surface, the upper surface further comprising openings, slits, or vents; a base member, the base member comprising a plurality of sidewall ribs, an upper rim, a base member lock rim, the upper rim comprising one or more notches; a bottom surface of the base member comprising a protruding surface complementary to the embossed surface of the lid member; at least one channel in the bottom surface of the base member, wherein the channel is adjacent to the protruding surface, wherein the channel is adjacent to the openings, slits or vents of the lid member when the embossed surface of the lid member receives the protruding surface of the base member.
- 30. The food container according to claim 29 wherein the upper rim has nine notches.
- 31. The food container according to claim 29 wherein the upper rim comprises at least two rims.
US Referenced Citations (45)