A multi-tiered food serving set with temperature retention capabilities, which is stackable and can be stacked on top of each other.

Abstract

The present invention relates to a food container including a bottom, a peripheral wall, and first, second, and third protrusions. The protrusions are spaced apart and coupled to the wall and bottom. Each of the first, second, and third protrusions defines a respective support surface extending radially inward from the wall, a recess in the bottom, and a recess in the wall. Each of the support surfaces is configured to support a non-recessed portion of the bottom of another food container in a stacked configuration. Each of the wall and bottom recesses is configured to receive the support surface of another food container in a stacked configuration.

Description

Technical Field

[0001] The present invention relates generally to containers, and more specifically, without being limited thereto, to containers that facilitate stacking of containers for providing food and stacking of containers for storage when empty.

Background Art

[0002] When providing food to a large number of people in a buffet style (i.e., self-service), there is a conflict between, on the one hand, presenting attractive food with proper heat retention, and on the other hand, labor efficiency and convenience for the diners. The least expensive way to serve such food is to provide everything at once and pile it high on a few large serving trays. As a result, as individual items of food are removed by the diners, the overall presentation looks worse, "hot" food gets cold, and "cold" food warms up. A further problem with this method of service occurs with foods that must be served on ice, such as small shrimp or shell-on oysters, and as the ice melts, water accumulates in the serving tray, resulting in a waterlogged, unappealing, and unhealthy mass.

[0003] An alternative is to have servers constantly entering and leaving the kitchen to place the food attractively arranged on smaller serving dishes that are heated, cooled, or chilled as needed. This is useful for better presenting the food while maintaining high and low temperatures more effectively, but it increases labor costs, creates the potential for accidents and confusion, and requires storing or transporting bulky serving dishes between storage and serving locations.

[0004] It is considered an advancement in the art to provide a food service set that has a heat retention function and facilitates compact storage and attractive presentation of food.

Summary of the Invention

[0005] In one embodiment of the present invention, an improved stackable and stackable multi-tiered food serving set comprising multiple containers that include a temperature-retaining function and facilitate compact storage is described. The containers preferably include a bottom, a peripheral wall bonded to the bottom, and three protrusions. Each protrusion is preferably bonded to the bottom and the wall and positioned apart from the other protrusions. Each of the first, second, and third protrusions preferably defines a support surface extending radially inward from the wall, a recess in the bottom, and a recess in the wall.

[0006] In certain embodiments, each of the first, second, and third projections includes a lower end and an upper end that is narrower than the respective lower end.

[0007] In another embodiment, each of the support surfaces is preferably configured to support the non-recessed portion of the bottom of another food container in a stacked configuration. Each of the wall and bottom recess is preferably configured to receive the support surface of another food container in a stacked configuration.

[0008] In another embodiment, each of the first, second, and third projections preferably defines a stabilizer positioned above its respective support surface. The stabilizer is preferably configured to horizontally stabilize another food container in a stacked configuration. The wall preferably defines an upper diameter and a lower diameter smaller than the upper diameter. Each of the stabilizers preferably extends radially inward from the wall, to about half or less of the difference between the upper and lower diameters.

[0009] The container preferably includes three or fewer support surfaces configured to support the non-recessed portion of the bottom of another food container in a stacked configuration. The first, second, and third projections are preferably distributed at approximately 120° to each other around the center of the bottom. In certain embodiments, a drain hole extends through the bottom.

[0010] Preferred and alternative examples of the present invention will be described in detail below with reference to the following drawings. [Brief explanation of the drawing]

[0011] [Figure 1] This is a perspective view of a preferred food serving container. [Figure 2] Figure 1 is a perspective view of the bottom of the food serving container. [Figure 3] This is a perspective view of another preferred food serving container. [Figure 4] A perspective view of multiple preferred food serving containers in a stacked state. [Figure 5] Figure 4 is a perspective side view of the food serving containers in their superimposed state. [Figure 6] This is a cross-sectional view of two preferred food serving containers stacked on top of each other. [Figure 7] This is a preferred perspective side view of the lid. [Modes for carrying out the invention]

[0012] A preferred food container 2 according to the principle of the present invention of the food serving set is shown in Figure 1. The food container 2 preferably has a bottom 4 having an inner surface 5 and an outwardly sloping peripheral wall 6 having an inner surface 7. The food container 2 preferably includes at least three protrusions 8, 10, 12 extending upward from the inner surface 5 of the bottom 4 and extending inward from the inner surface 7 of the peripheral wall 6, which facilitate the arrangement of the food container set in both a stacked configuration (see Figure 4) and a superimposed configuration (see Figure 5). The protrusions are preferably distributed substantially evenly around the periphery of the food container 2, although the exact position of the protrusions around the periphery may vary, for example, depending on the needs in a particular serving situation. In the preferred embodiment having the three protrusions 8, 10, 12 shown in Figure 1, the protrusions are preferably arranged around the periphery of the food container 2 at intervals of about 120°.

[0013] Each of the projections 8, 10, and 12 is preferably substantially horizontally positioned and has respective support surfaces 14, 16, and 18 extending radially inward from the inner surface 7 of the peripheral wall 6. The projections 8, 10, and 12 preferably have respective stabilizers 32, 34, and 36 extending upward from their respective support surfaces 14, 16, and 18 and extending inward from the inner surface 7 of the peripheral wall 6. In an alternative embodiment, each stabilizer 32, 34, and 36 includes a respective flange (not shown) extending upward from its respective support surface 8, 10, and 12 and located radially inward away from the peripheral wall 6. The support surfaces 14, 16, and 18 of the projections 8, 10, and 12 provide vertical support to such food containers when a set of food containers is arranged in a stacked configuration (see Figure 4). The stabilizers 32, 34, and 36 preferably provide horizontal stabilization to the food containers when the food containers are arranged in a stacked configuration.

[0014] As shown in Figure 2, the protrusions 8, 10, and 12 preferably define recesses 9, 11, and 13 on the outer surface 20 of the base 4 and the outer surface 22 of the peripheral wall 6. The recesses 9, 11, and 13 facilitate the reception of the protrusions of food containers placed directly beneath this container in a stacked configuration (see Figure 5). The stabilizers 32, 34, and 36 may be solid as shown in Figure 2, or they may be hollow and open from the bottom to facilitate the reception of the top surface of the stabilizer directly below in a stacked configuration (not shown). Again as shown in Figure 2, the preferred outer surface 20 of the base 4 is preferably substantially flat to facilitate stable placement on the support surfaces 14, 16, and 18 in a stacked configuration (see Figure 4).

[0015] As shown in Figure 6, as a result of the outward inclination of the peripheral wall 6, the upper diameter 62 of the upper opening 63 of the food container 2 is larger than the bottom diameter 64 of the bottom 4 of the food container 2. The upper diameter 62 is preferably about 12 inches. The most radially inward portion of each stabilizer 32, 34, 36 is offset radially inward from the peripheral wall 6 by a distance 66, which is preferably about half the difference between the upper diameter 62 and the bottom diameter 64. In another embodiment, for example, this ratio may be one-third or two-thirds of the difference. As a result, the stabilizers 32, 34, 36 help prevent food containers stacked on the protrusions 8, 10, 12 from sliding toward or away from the peripheral wall 6 in a stacked configuration.

[0016] Another preferred food container 80 of the present invention of the food serving set is shown in Figure 3. Food container 80 is preferably the same as or similar to food container 2, except that food container 80 preferably has no drainage holes and preferably includes two handles 82, 84 on both sides of container 80 to facilitate transport of a stacked or superimposed configuration (see Figures 4 and 5) with food container 80 as the bottom container. The handles 82, 84 are preferably substantially coplanar with the upper edge 86 of the food container. The handles 82, 84 are preferably rounded and most preferably have a radius of about 1.5 inches.

[0017] Figures 4 and 5 show a food serving set 38 consisting of food containers 40, 42, 44, and 46, each of which is preferably structurally identical or similar to the food container 2 described above. For the purposes of this specification, each of the containers 40, 42, 44, and 46 has the same structural features as those described above with respect to container 2, and references used with respect to container 2 refer to the corresponding structural features of containers 40, 42, 44, and 46.

[0018] Food containers 40, 42, and 44 may be rotatable about a vertical axis 48 to align or offset the projections of each food container 40, 42, and 44 with the projections of the food containers 42, 44, and 46 directly below them on their periphery, in order to selectively arrange food serving sets in a stacked configuration (see Figure 4) or a superimposed configuration (see Figure 5). The stacked configuration prevents the outer surface 20 of the bottom of each food container from coming into contact with the food contained in the food container directly below, by allowing the outer surface 20 of the bottom of each food container to be separated from the inner surface 5 of the bottom of the food container directly below. Such a gap is determined by the height 50 of the projections in the food container directly below (see Figure 6), and the food should be contained below the height 50 of the support surface of the projections in the food container directly below. The height 50 may vary depending on the overall size and shape of the containers desired for a particular serving configuration, and depending on the specific structural configuration of the projections 8, 10, and 12.

[0019] As shown in Figures 1 and 2, one or more of the food containers 40, 42, and 44 may include a drain hole 52. Food containers with drain holes are preferably used to serve cold food or food chilled with ice. Food containers without drain holes are preferably used to serve hot food or hot food, or cold food or food chilled with ice, but are placed at the bottom of a stacked set 38 to facilitate the capture of water from melted ice in the intermediate or upper food containers. Food containers containing hot food or hot food are preferably stacked on top of food containers containing cold food or food chilled with ice to facilitate the prevention of overheating of the cold food or food chilled with ice and the overheating of the hot food or food chilled with ice. In some cases, all containers in the stack except the bottom container preferably contain food on ice, and water from melting ice preferably flows off the ice and collects in the bottom container. If water is carried away from the ice as it melts, the ice will preferably last longer, and the food will preferably stay colder.

[0020] A preferred lid 100 of the present invention for the food serving set is shown in Figure 7. The lid 100 preferably has a generally convex outer surface 102 and a generally smooth inner surface (not shown). Thus, the upper contour 104 of the lid 100 is preferably dome-shaped. The periphery 106 of the lid 100 preferably has substantially the same shape as at least the upper opening 63 of the topmost container 40. The outer diameter of the periphery 106 of the lid 100 is preferably substantially the same as at least the bottom diameter 64 of the topmost container 40. Thus, when the lid 100 is placed on the topmost container 40 when the set 38 is in a stacked configuration, the lid 100 substantially surrounds the food in the topmost container 40. The lid 100 preferably has a knob or a finger hole 112 as shown in Figure 7 to facilitate removal of the lid 100 from the topmost container 40. Therefore, when the sets 38 are in a stacked configuration, the lid 100 is preferably inverted within the top container 40 (with the concave side of the lid 100 facing upward) to facilitate the compact storage of the lid 100 within the top container 40 (not shown).

[0021] In some versions, the lid 100 has recesses such as 108, which are substantially the same number as the protrusions such as 8, 10, 12 that the top container 40 has. In these versions, the outer diameter of the periphery 106 of the lid 100 is preferably substantially the same as the diameter 64 of the top opening 63. The outermost radial edge of a recess, such as the outermost radial edge 110, preferably defines a shape such as a circle having substantially the same cross-sectional length or diameter as the bottom diameter 64 of the top container 40. Thus, when the set 38 is in a stacked configuration, the lid 100 is preferably inverted within the top container 40 by receiving the protrusions in the top container 40 into the recesses of the lid 100, in order to further facilitate the compact storage of the lid 100 within the top container 40.

[0022] Food service set 38 facilitates the distribution of all food items, for example on a buffet table, simultaneously, in a plurality of stacks of serving containers each having the food attractively arranged inside its respective container. As soon as the food in the topmost container 40 in the stack of containers 40, 42, 44, 46 is depleted, this container can be removed to expose a second container filled with food, and then, when this second container becomes empty, this second container can be removed to expose a third container, and so on.

[0023] Removing the topmost serving container from the stack when it becomes empty requires far less serving effort compared to the effort required for continuous replenishment from the kitchen, and is far less intrusive to the diner compared to not using the food service set of the present invention. Further, the present invention provides support for the stacked containers even when the lower containers do not have food, keeps the containers separated for cleaning, and facilitates the cleaning of used containers.

[0024] In certain embodiments, the stack design and the fact that the topmost container is preferably removed when it becomes empty reduce heat loss from and heat access to the food, and thus, according to this set, there is excellent heat retention and cold retention.

[0025] The fact that similar or identical serving containers can be both stackable and nestable (an apparent contradiction) is due to their unique design. The containers are preferably made of a relatively thin material having a substantially straight side and a slightly tapered design. That is, the diameter of the top of each container is preferably slightly larger than the diameter of the bottom of each container, allowing the containers to be nested ( "stacked") one on top of and inside the other for storage and transportation. The degree of taper can vary depending on the exact size and configuration of the food service set based on specific needs and circumstances.

[0026] An advantage of the present invention is that the containers are stackable. This is preferably achieved by using a narrow, stepped projection which is integral to the side walls and bottom of the container and supports the upper container above the lower container, centering it. The food serving set preferably includes three projections positioned at 120-degree intervals around the perimeter, but may include a different number of projections at different intervals, such as four projections at 90-degree intervals.

[0027] In a preferred embodiment, the projections are preferably cast or formed to bond to the peripheral wall and bottom of the container, with the bottom of the projection being wider than the top of the projection. Also in a preferred embodiment, the projections are hollow and open at the bottom and on the outside, so that the projections can "overlap" with each other when the projections are aligned with each other when the container is stored.

[0028] When in use, the upper container is preferably stacked on top of the lower container, supported by the lower container, when the upper container is rotated a few degrees so that the protrusions do not align with each other. The stepped top of the protrusions of the lower container preferably supports and centers the bottom of the upper container. This stackable / stackable feature is extremely efficient for storage, utilizing less than 25% of the volume that would be required if the containers were not stackable. Keeping food warm and cold:

[0029] In another embodiment, reusable ceramic, metal, or plastic discs are provided, each configured to fit along the bottom of a serving container. In preferred operation, these are heated or refrigerated according to the desired use and then placed in the container before food is added to assist in heating and cooling. Design options for foods chilled with ice:

[0030] In another embodiment, the set preferably comprises several serving containers, each having one or more drainage holes in the center of its bottom. The serving stack is then preferably configured such that all containers in a particular stack, except for the bottommost container, have drainage holes. In application of this embodiment, ice-chilled foods such as shrimp, oysters in the shell, and ice cream sandwiches can be served in the upper containers, allowing the water from the melting ice to drain into the bottommost (collection) container. Foods without liquid may be served in containers without drainage holes.

[0031] In the food serving set described above, the food containers 40, 42, 44, and 46 are preferably made from stainless steel, aluminum, or other materials, or from cast or vacuum-formed plastic, by hydraulic molding or pressing, but may be made from any suitable material.

[0032] In one embodiment, using a stainless steel version of the preferred type shown, 10 containers can be stored, preferably in less than twice the space occupied by one container. For example, one typical container itself is preferably 3 inches tall, and when eight of those same containers are stacked on top of each other, the overall height is preferably only 4-1 / 2 inches. Each protrusion preferably has a triangular cross-section, with the top narrower than the bottom, and the overall wall thickness is preferably the same as the wall thickness of the container. In some versions, the containers are larger or smaller, square, oval, oval, or freeform artistic designs, and may have four or more support ridges, but all preferably utilize the same stackable and overlapping features. Another feature preferably includes a ceramic oven heating heat storage disc or battery heating disc, preferably placed inside each container to keep the food at a high temperature.

[0033] When used herein, the following terms take the meanings explicitly associated herein unless the context makes it clear otherwise. The term "or" is a comprehensive grammatical conjunction indicating that one or more of the terms connected by it may be used. For example, the phrase "one or more A, B, or C" or "one or more A, B, or C" is used to disclose (i) one or more A, (ii) one or more B, (iii) one or more C, (iv) one or more A and one or more B, (v) one or more A and one or more C, (vi) one or more B and one or more C, and (vii) each of one or more A, one or more B, and one or more C individually. When used herein, the term "based on..." is not exclusive and may also be based on further factors not listed. The articles "a," "an," and "the" include when there are plural objects being referred to. A plural reference is intended to also disclose the singular form. The phrase "one or more" or "at least one" discloses just one, two or more, or all of them.

[0034] The term “transverse” refers to a non-parallel orientation, including but not limited to a vertical orientation. The term “configured” means that an element has one or more of the sizes, dimensions, arrangements, or orientations necessary to achieve or provide the mentioned function or result. The terms “approximately” or “substantially” refer to a range of values ​​that includes all values ​​within the stated value or within 5, 10, 20, 30, 40, or 50% of the stated value. For example, the term “substantially parallel” means parallel or within a range of 5, 10, 15, 20, 25, 30, 35, 40, or 45 degrees of parallelism. As another example, the term “substantially horizontal” means horizontal or within a range of 5, 10, 15, 20, 25, 30, 35, 40, or 45 degrees of horizontalism. The term “directly joined” means that one component is in contact with another component (e.g., fastened, glued, or integral). The term “indirectly connected” refers to a connection of one component to one or more other components connected to a second component, or to one or more further components connected to a second component. The term “connected” should be understood to disclose both direct and indirect connections of components or elements that are described as connected to one another.

[0035] While preferred embodiments of the present invention have been illustrated and described, as stated above, numerous modifications are possible without departing from the spirit and scope of the invention. For example, where an element or component is disclosed as preferably having a certain feature or characteristic, each such disclosure is also intended to disclose that the element or component does not have such feature or characteristic, unless it is clearly evident from the principles of the invention that it does not. Therefore, the scope of the invention is not limited by the disclosure of preferred embodiments. Rather, the invention should be fully determined by referring to the appended claims. Furthermore, each feature, characteristic, element, or component described herein may be implemented in combination with one or more other features, characteristics, elements, or components described herein. Furthermore, it should be noted that the dependencies of the claims and combinations of elements described herein are not intended to refrain from claiming other subject matter disclosed herein. Rather, this disclosure is intended to disclose subject matter consisting of any combination of any two or more claims so that any one of the dependent claims may be described in a later claim as dependent on any one or more other claims and all of the other claims in the options (e.g., "a food container as described in any one of the preceding or succeeding claims"). Furthermore, this disclosure is intended to disclose subject matter described in any one of the dependent claims as if it were an independent claim that includes or does not include all or part of the subject matter of the original independent claim or any other subject matter disclosed herein. Embodiments of the present invention in which exclusive ownership or privilege is claimed are defined as follows:

Claims

1. Food container, The bottom and, The peripheral wall attached to the bottom, The first projection connected to the bottom and the peripheral wall, A second projection is connected to the bottom and the peripheral wall and is positioned at a distance from the first projection, A third projection is connected to the bottom and the peripheral wall and is positioned at a distance from the first and second projections. It is equipped with, Each of the first, second, and third projections is, The recess at the bottom, The recess in the peripheral wall and, A support surface extending radially inward from the peripheral wall and Determine, Each of the aforementioned support surfaces is configured to support the non-recessed portion of the bottom of the second food container in the stacked configuration, and each of the recesses in the bottom and the peripheral wall is configured to receive the support surface of the third food container in the stacked configuration. Each of the first, second, and third projections has a stabilizer positioned above the support surface, each stabilizer extending radially inward from the peripheral wall, and each stabilizer is configured to horizontally stabilize the other food containers in the stacked configuration. A food container, wherein each stabilizer is positioned below the upper edge of the peripheral wall and has an uppermost part that is separated from the upper edge of the peripheral wall by a distance exceeding the height of the transition between the upper edge of the peripheral wall and the inner surface of the peripheral wall.

2. The food container according to claim 1, wherein each of the first, second, and third protrusions defines a stabilizer positioned above the support surface.

3. The food container according to claim 1, wherein the peripheral wall has an upper diameter and a lower diameter smaller than the upper diameter, and each stabilizer extends radially inward from the peripheral wall to less than half the difference between the upper diameter and the lower diameter.

4. The food container according to claim 1, further comprising three or fewer support surfaces configured to support the non-recessed portion of the bottom of the other food containers in the stacked configuration.

5. The food container according to claim 1, wherein the first, second, and third protrusions are distributed at approximately 120° intervals from each other around the center of the bottom.

6. The food container according to claim 1, further comprising a drain hole extending through the bottom.

7. The food container according to claim 1, wherein each of the first, second, and third projections has a lower end and an upper end, and each of the upper ends is narrower than the lower end.

8. The food container according to claim 1, wherein a first stabilizer is positioned above the support surface of the first projection, a second stabilizer is positioned above the support surface of the second projection, and a third stabilizer is positioned above the support surface of the third projection, and each of the first, second, and third stabilizers is separate from each other.

9. Food container, The bottom and, The peripheral wall attached to the bottom, The first projection connected to the bottom and the peripheral wall, A second projection is connected to the bottom and the peripheral wall and is positioned at a distance from the first projection, A third projection is connected to the bottom and the peripheral wall and is positioned at a distance from the first and second projections. It has, Each of the first, second, and third projections is, The recess at the bottom, The recess in the peripheral wall, A support surface extending radially inward from the aforementioned peripheral wall is defined, Each of the aforementioned support surfaces is configured to support the non-recessed portion of the bottom of the second food container in the stacked configuration, and each of the recesses in the bottom and the peripheral wall is configured to receive the support surface of the third food container in the stacked configuration. The food container, in a stacked configuration, includes three or fewer support surfaces configured to support the non-recessed portion of the bottom of other food containers. Each of the first, second, and third projections has a stabilizer positioned above the support surface, each stabilizer defining an inner stabilizing surface positioned radially inward from the peripheral wall, and each stabilizer is configured to horizontally stabilize other food containers in a stacked configuration. A food container, wherein each stabilizer is positioned below the upper edge of the peripheral wall and has an uppermost part that is separated from the upper edge of the peripheral wall by a distance exceeding the height of the transition between the upper edge of the peripheral wall and the inner surface of the peripheral wall.

10. The food container according to claim 9, wherein the first, second, and third protrusions are distributed at approximately 120° intervals from each other around the center of the first bottom.

11. It is a set of food containers, The first bottom and, The first peripheral wall connected to the first bottom, The first projection connected to the first bottom and the first peripheral wall, A second projection is connected to the first bottom and the first peripheral wall, and is positioned at a distance from the first projection, A third projection is connected to the first bottom and the first peripheral wall, and is positioned at a distance from the first and second projections. It has, Each of the first, second, and third projections defines a first support surface extending radially inward from the first peripheral wall, a first recess in the first bottom, and a first recess in the first peripheral wall, in a first food container, and The second bottom and, The second peripheral wall connected to the second bottom, A fourth projection connected to the second bottom and the second peripheral wall, A fifth projection is connected to the second bottom and the second peripheral wall, and is positioned at a distance from the fourth projection, A sixth projection is connected to the second bottom and the second peripheral wall, and is positioned at a distance from the fourth and fifth projections. It has, Each of the fourth, fifth, and sixth projections defines a second support surface extending radially inward from the second peripheral wall, a second recess at the bottom of the second, and a second recess in the second peripheral wall. The second food container has a stabilizer positioned above the second support surface, each of the fourth, fifth, and sixth projections, each stabilizer extending radially inward from the second peripheral wall, each stabilizer configured to horizontally stabilize the first food container in a stacked configuration, each stabilizer positioned below the upper edge of the second peripheral wall, and having an uppermost portion that is spaced from the upper edge of the second peripheral wall by a distance exceeding the height of the transition between the upper edge of the second peripheral wall and the inner surface of the second peripheral wall. Includes, Each of the second support surfaces of the second food container is configured to support the non-recessed portion of the first bottom of the first food container in a stacked configuration. Each of the first recesses in the first peripheral wall and the first bottom of the first food container is configured to receive the second support surface of the second food container in the superimposed configuration. Each second support surface defines a longitudinal dimension extending along the radius of the second peripheral wall, a support length measured along the longitudinal dimension from the innermost part of the second support surface along the longitudinal dimension to one innermost part of the stabilizer along the longitudinal dimension, and a support width measured perpendicular to the longitudinal axis at the widest part of the support surface between the innermost part of the second support surface and one innermost part of the stabilizer, wherein the support length is greater than the support width. Food container set.

12. The food container set according to claim 11, wherein each of the fourth, fifth, and sixth projections defines a stabilizer positioned above the second support surface.

13. The food container set according to claim 11, wherein the second peripheral wall has an upper diameter, the first peripheral wall has a lower diameter smaller than the upper diameter, and each stabilizer extends radially inward from the second peripheral wall to less than half the difference between the upper diameter and the lower diameter.

14. The food container set according to claim 11, wherein the second food container includes three or fewer second support surfaces configured to support the non-recessed portion of the bottom of the first food container in the stacked configuration.

15. The food container set according to claim 11, wherein the first, second, and third protrusions are distributed at approximately 120° intervals from each other around the center of the first bottom.

16. The food container set according to claim 11, further comprising a drain hole extending through the first bottom.

17. The food container set according to claim 16, wherein the second bottom portion does not have a drain hole.

18. The food container set according to claim 11, wherein each of the first, second, and third projections has a lower end and an upper end, and each of the upper ends is narrower than the lower end.

Images