Cup, cup blank, and method of forming a cup

Abstract

A cup 100, a blank 500 for the cup 100, and a method for forming the cup 100 are provided. The cup 100 for holding a liquid comprises a base 110, a wall 200, a first closure flap 310, and a second closure flap 320. The base and the wall define a container having a space 202 for holding a liquid. The first and second closure flaps are attached to and extend from the wall, the first and second closure flaps are foldable against the wall, the first and second closure flaps are foldable between an open position and a closed position, and the first and second closure flaps define a lid (300) when in the closed position, the lid being defined by the first closure flap being folded at least twice to the closed position and the second closure flap being folded at least once to the closed position.

Description

[Technical Field]

[0001] Technical Field The present invention relates to cups, and particularly, but not exclusively, to cups with closable lids. [Background technology]

[0002] background Disposable items are common in modern society. Disposable cups, such as paper cups and plastic cups, are commonly used in the food and beverage industry today. These disposable items are often discarded or recycled after a single or limited use.

[0003] Drinking and eating cups are often provided with separate lids to prevent spills. These lids are often separate pieces that are placed and secured onto the cup after the cup has been filled with a liquid or solid, such as a drink or food. The lid can then be removed by the user to access the drink or food, after which the lid can be discarded or recycled with the cup.

[0004] These detachable lids often need to be processed, e.g., recycled, separately from the rest of the cup because they are made from a different material. Lids are often made from recyclable plastics, but at a higher cost than the cup.

[0005] Furthermore, these removable lids can present some practical difficulties for end users, as the lids are often placed incorrectly on the cup, which can cause the cup to leak. During use, the end user may need to exert extra effort to accurately attach the lid to the cup, such as by aligning the lid precisely with the top rim of the cup while applying even pressure to ensure the lid fits securely onto the rim of the cup. If the lid is not placed correctly or is misaligned, the user may experience spills when using the cup. Summary of the Invention [Means for solving the problem]

[0006] The present invention relates to cups, and particularly, but not exclusively, to cups with closable lids. The present invention also relates to blanks for cups and methods of forming cups.

[0007] According to a first aspect, the present invention provides a cup for holding a liquid, comprising: base, With walls, the base and the wall define a container with a space for holding a liquid; The cup also a first closure flap and a second closure flap attached to the wall and extending from the wall; the first closure flap and the second closure flap are foldable against the wall and foldable between an open position and a closed position to define a lid when in the closed position; the lid is defined by a first closure flap that folds to a closed position at least twice and a second closure flap that folds to a closed position at least once; Regarding the cup.

[0008] In one configuration, the cup includes a first lateral fold, and a first closure flap is attached to the wall at the first lateral fold, the first closure flap including a pair of opposing diagonal folds defined on the first closure flap.

[0009] In one configuration, to close the flaps, the first closure flap is folded twice and the second closure flap is folded once, and to move the first closure flap to the closed position, the first closure flap is folded along a pair of diagonal folds and along a first lateral fold, and the second closure flap is folded along a second lateral fold to the closed position.

[0010] In one configuration, the first closure flap comprises a pair of opposing side flaps and an intermediate flap extending between the side flaps, each side flap attached to the intermediate flap along a longitudinal fold, each side flap attached to the wall at the side fold, and the intermediate flap attached to the wall at the first transverse fold.

[0011] In one configuration, the middle flap is attached to the wall along a first lateral fold and each side flap is attached to the wall along a side fold.

[0012] In one configuration, each side flap includes an arcuate edge, the intermediate flap includes a curved edge, and the arcuate edge of each side flap includes a first curved portion and a second curved portion that define the arcuate edge.

[0013] In one configuration, each side flap includes a distal panel and a proximal panel, the proximal panel of each side flap being proximal to the intermediate flap and the distal panel being distal to the intermediate panel, and a diagonal fold in each side flap separating the proximal and distal panels.

[0014] In one configuration, each side flap is folded about a side fold and the proximal panel is folded about a diagonal fold and positioned over the distal panel to define two folds of the first closure flap.

[0015] In one configuration, the first lateral fold and the second lateral fold are curved edges.

[0016] In one configuration, the first closure flap has a locking opening and the second closure flap has a locking tab, and when the first closure flap and the second closure flap are in the closed position, the second closure flap rests on top of the first closure flap and the locking tab of the second closure flap engages with the locking opening of the first closure flap to lock the first and second closure flaps in the closed position.

[0017] In one configuration, the second closure flap is foldable around the second lateral fold, and the second closure flap is foldable between an open position and a closed position, in which the second closure flap rests on top of the first closure flap.

[0018] In one configuration, the second closure flap is foldable at an angle between 0 and 180 degrees relative to the second lateral fold.

[0019] In one configuration, the second closure flap is in a fully open position when the second closure flap is at 0 degrees, the second closure flap is in a closed position when the second closure flap is at 180 degrees, the second closure flap is perpendicular to the first closure flap when at 0 degrees, and the user can see inside the container when the second closure flap is at 0 degrees.

[0020] In one configuration, the cup includes a third lateral fold portion, the third lateral fold portion is disposed on the second closure flap, the third lateral fold portion is disposed adjacent to the second closure flap, and the second closure flap is foldable around the third lateral fold portion.

[0021] In one configuration, the second closure flap is movable relative to the third lateral fold at an angle between 0 and 90 degrees.

[0022] In one configuration, the second lateral fold and the third lateral fold are arcuate folds.

[0023] In one configuration, the second lateral fold and the third lateral fold include opposing bends.

[0024] In one configuration, the first closure flap is longer than the second closure flap.

[0025] In one configuration, the first closure flap that is folded around the diagonal fold defines a pair of opposing arcuate lips formed by the arcuate edges of each side flap of the first closure flap and a lateral lip formed by the arcuate edge of the middle flap of the first closure flap when the first closure flap is folded into the closed position.

[0026] In one configuration, a pair of opposing arcuate lips and lateral lips form a seal that prevents the contents of the cup from spilling when the cup is inverted or tilted into a drinking orientation or when the cup is inverted onto the middle flap.

[0027] In one configuration, the wall comprises a first longitudinal edge and a second longitudinal edge, the longitudinal edges overlapping to form a cylindrical or prismatic shape to define the container, and at least one of the first longitudinal edge or the second longitudinal edge comprising a notch therein.

[0028] In one configuration, the second longitudinal edge includes a C-shaped notch therein.

[0029] In one configuration, the C-shaped notch is located in the side fold when the first longitudinal edge and the second longitudinal edge overlap to form a cylinder or prism, and the C-shaped notch improves the foldability of each side flap.

[0030] In one configuration, the first closure flap has a curved upper surface and the second closure flap has a curved upper surface, the upper surface of the first closure flap and the upper surface of the second closure flap curving in the same direction.

[0031] In one configuration, the first closure flap and the second closure flap include a concave curvature.

[0032] In one configuration, the intermediate flap of the first closure flap and the second closure flap include a concave bend.

[0033] In one configuration, each side fold is defined along a straight edge of the wall, and the top surface of the first closure flap and the top surface of the second closure flap have a concave curvature, and the straight edge of each side allows for easy folding of the flap because the tension on the flap is unidirectional.

[0034] In one configuration, audible or tactile feedback is provided when the locking tab is engaged with the locking opening and / or audible or tactile feedback is provided when the locking tab is disengaged from the locking opening.

[0035] In the configuration, the audible feedback comprises an audible click produced due to the curved top surface of the first closure flap and the curved top surface of the second closure flap.

[0036] In one configuration, the locking tab is disengaged from the locking opening by applying a force to the top surface of the first closure flap or the top surface of the intermediate flap.

[0037] In one configuration, the first closure flap includes an exit opening formed therein.

[0038] In one configuration, the cup includes a collapsible cover, the cover being movable between a closed position and an open position, the outlet opening being exposed when the cover is in the open position so that the contents of the cup can exit through the outlet opening, and the outlet opening being covered by the cover when the cover is in the closed position so that the contents of the cup are retained within the cup.

[0039] In one configuration, the second closure flap is foldable to form a lip positioned for a user to access liquid held within the space.

[0040] In one configuration, the cover is biased in the closed position by a concave curvature in the top surface of the first closure flap.

[0041] According to a second aspect, the present invention provides a blank for a cup, comprising: The wall and a first closure flap attached to and extending from the wall; a second closure flap attached to and extending from the wall; the first closure flap and the second closure flap are integrally formed with the wall, and the blank is of one-piece construction; the first closure flap includes a pair of opposing arcuate edges and an intermediate edge extending between the arcuate edges; the first closure flap comprises two diagonal folds; the first closure flap is attached to the wall at the first lateral fold; the second closure flap is attached to the wall at the second lateral fold; The blank relates to a lid formed in use by folding the first closure flap initially around at least the diagonal fold and the first lateral fold, and the second closure flap foldable around the second lateral fold, and by folding the first closure flap twice and the second closure flap once.

[0042] In one configuration, the blank includes a third lateral fold disposed on the second closure flap, the second closure flap being foldable around the third lateral fold and / or the second lateral fold, and the second lateral fold and the third lateral fold are curved.

[0043] In one configuration, the third lateral fold and the second lateral fold include opposing bends.

[0044] In one configuration, the third lateral fold comprises a convex bend and the second lateral fold comprises a concave bend.

[0045] In one configuration, the first closure flap comprises a first side flap, a second side flap, and an intermediate flap extending between and connecting the first and second side flaps, the intermediate flap being attached to the wall along the first fold, each side flap being attached to the wall at a side fold, each side flap comprising an arcuate edge, and the intermediate flap comprising a curved edge, the curved edges connecting each arcuate edge.

[0046] In one configuration, each arcuate edge comprises a first curved portion and a second curved portion, the first curved portion and the second curved portion comprising different curvatures or different arc lengths or different radii.

[0047] In one configuration, the wall comprises a first longitudinal edge and a second longitudinal edge, the longitudinal edges being disposed opposite one another and defining a boundary of the wall, and either the first longitudinal edge or the second longitudinal edge comprising the notch.

[0048] According to a third aspect, the present invention relates to a method of forming a cup using a blank, the blank comprising a wall, the wall comprising a first longitudinal edge and a second longitudinal edge, the blank further comprising a first closure flap attached to and extending from the wall and a second closure flap attached to and extending from the wall, the first closure flap and the second closure flap being integrally formed with the wall, the blank being of one piece construction, the first closure flap comprising a pair of opposing arcuate edges and an intermediate edge extending between the arcuate edges, the first closure flap comprising two diagonal folds, the first closure flap attached to the wall at a first lateral fold and the second closure flap attached to the wall at a second lateral fold, the method comprising: attaching a portion of the wall adjacent the second longitudinal edge to a portion of the wall adjacent the first longitudinal edge to form a cylindrical or prismatic shaped body, the cylindrical or prismatic shaped body defining a hollow space therein to define a container; forming or attaching a base; forming a lid by folding the first closure flap along at least two diagonal folds to fold two portions of the first closure flap inward; folding the first closure flap about the first lateral fold so that the first closure flap is in a closed position; folding the second closure flap around the second fold portion such that the second closure flap rests on top of the first closure flap in the closed position, the first closure flap and the second closure flap being folded to form a lid; the second closure flap includes a locking tab and the first closure flap includes a locking opening, and inserting the locking tab into the locking opening to lock the second closure flap to the first closure flap to form a closed lid that prevents or reduces leakage of contents of the cup.

[0049] According to another aspect of the present invention, there is provided a disposable beverage cup for use with an electric beverage dispenser, comprising: base, With walls, the base and the wall define a container with a space for holding a beverage; The cup is further A cup is provided that is attached to a wall and has a first closure flap and a second closure flap extending from the wall; the first closure flap and the second closure flap are foldable against the wall, the first closure flap and the second closure flap are foldable between an open position and a closed position, the first closure flap and the second closure flap defining a lid when in the closed position; the lid is defined by a first closure flap that folds to a closed position at least twice and a second closure flap that folds to a closed position at least once; the base and wall are dimensioned to allow the beverage cup to stand at a height of approximately 15 cm, or about the height of a dispensing position of the beverage dispenser, such that one of the first or second closure flaps is positioned to fit into a slot between the wall and the nozzle of the beverage dispenser in the open position; the cup having a first lateral fold, a first closure flap attached to the wall at the first lateral fold, the first closure flap including a pair of opposing diagonal folds defined thereon; To close the flaps, the first closure flap is folded twice and the second closure flap is folded once; to move the first closure flap to a closed position, the first closure flap is folded along a pair of diagonal folds and along a first lateral fold, and the second closure flap is folded along a second lateral fold to the closed position; the first closure flap comprises a pair of opposing side flaps and an intermediate flap extending between the side flaps, each side flap attached to the intermediate flap along a longitudinal fold, each side flap attached to the wall at the side fold, and the intermediate flap attached to the wall at a first transverse fold; the middle flap is attached to the wall along a first lateral fold, and each side flap is attached to the wall along a side fold; each side flap has an arcuate edge, the intermediate flap has a curved edge, the arcuate edge of each side flap has a first curved portion and a second curved portion that define the arcuate edge; each side flap having a distal panel and a proximal panel, the proximal panel of each side flap being proximal to the intermediate flap and the distal panel being distal to the intermediate panel, a diagonal fold on each side flap separating the proximal and distal panels; each side flap is folded about a side fold and a proximal panel is folded about a diagonal fold and positioned over the distal panel, defining two folds of the first closure flap; the first lateral fold and the second lateral fold are curved edges; the first closure flap has a locking opening and the second closure flap has a locking tab, and when the first closure flap and the second closure flap are in a closed position, the second closure flap rests on top of the first closure flap and the locking tab of the second closure flap engages with the locking opening of the first closure flap to lock the first and second closure flaps in the closed position; a second closure flap foldable around the second lateral fold, the second closure flap foldable between an open position and a closed position, in which the second closure flap rests on top of the first closure flap, the second closure flap foldable at an angle between 0 and 180 degrees relative to the second lateral fold; the second closure flap is in a fully open position when the second closure flap is at 0 degrees, and in a closed position when the second closure flap is at 180 degrees, the second closure flap is perpendicular to the first closure flap when at 0 degrees, and a user can see inside the container when the second closure flap is at 0 degrees and determine that the level of the beverage is in the cup; the cup includes a third lateral fold portion, the third lateral fold portion is disposed on the second closure flap, the third lateral fold portion is located adjacent to the second closure flap, and the second closure flap is foldable around the third lateral fold portion; the second closure flap is movable at an angle between 0 and 90 degrees relative to the third lateral fold; the second lateral fold and the third lateral fold are arcuate folds; the second lateral fold and the third lateral fold have opposing bends; The first closing flap is longer than the second closing flap; when the first closure flap is folded into the closed position, the first closure flap is folded about the diagonal fold to create a pair of opposing arcuate lips formed by the arcuate edges of each side flap of the first closure flap and a lateral lip formed by the arcuate edges of the middle flap of the first closure flap; the pair of opposing arcuate lips and lateral lips create a seal that prevents the beverage in the cup from spilling when the cup is inverted or tilted into a drinking orientation or when the cup is inverted toward the middle flap; the first closure flap has a curved upper surface, the second closure flap has a curved upper surface, and the upper surfaces of the first closure flap and the second closure flap are curved in the same direction; the first closure flap and the second closure flap have a concave curvature; the intermediate flap of the first closure flap and the second closure flap have a concave bend; each side fold is defined along a straight edge of the wall, and the top surface of the first closure flap and the top surface of the second closure flap have a concave curvature, the straight edge of each side allowing for easier folding of the flap since tension on the flap is unidirectional; providing audible or tactile feedback when the locking tab is engaged with the locking opening and / or providing audible or tactile feedback when the locking tab is disengaged from the locking opening; the audible feedback includes an audible click generated due to the curved top surface of the first closure flap and the curved top surface of the second closure flap; the locking tab is disengaged from the locking opening by a force applied to the top surface of the first closure flap or the top surface of the intermediate flap; the first closure flap having an outlet opening formed thereon; the cup further comprises a foldable cover, the cover being movable between a closed position and an open position, and when the cover is in the open position, the outlet opening is exposed so that a beverage in the cup can exit the outlet opening, and when the cover is in the closed position, the outlet opening is covered by the cover so that a beverage in the cup is retained within the cup; The second closure flap is foldable to form a lip positioned for a user to access liquid held within the space.

[0050] This aspect of the invention can be advantageous because beverage cups or containers can be used in commercial or large-scale hospitality environments, such as coffee shops or fast-food kitchens. In these environments, beverage dispensers, such as coffee or soft drink machines, may be sized accordingly and have a nozzle that extends downward toward the base of a filling platform on which a cup typically rests while being filled. In this example, when the flap is in the open position, the flap engages a slot between the dispenser wall and the nozzle, thus allowing the cup to fit within the dispenser's filling platform while the nozzle can direct the beverage into the cup. This opening allows an operator to see the cup's fill status, while the fit of the flap within the slot, if at the appropriate height, helps to retain the cup within the beverage dispenser even if the cup is accidentally displaced. This reduces the risk of accidents and spills.

[0051] Reference to a range of numbers disclosed herein (e.g., 1-10) also incorporates reference to every rational number within that range (e.g., 1, 1.1, 2, 3, 3.9, 4, 5, 6, 6.5, 7, 8, 9, and 10) and any range of rational numbers within that range (e.g., 2-8, 1.5-5.5, and 3.1-4.7), and therefore all subranges of every range explicitly disclosed herein are intended to be hereby expressly disclosed. These are merely examples of what is specifically intended, and all possible combinations of numerical values ​​between the lowest and highest values ​​recited shall be considered to be expressly disclosed in this application as well.

[0052] It is to be understood that alternative embodiments or configurations may include any and all combinations of two or more of the parts, elements or features shown, described or referred to herein.

[0053] As used herein, the term "and / or" means "and" or "or," or, where the context allows, both.

[0054] As used herein, "(s)" following a noun refers to the plural and / or singular form of that noun.

[0055] As used herein, the term "cup" includes a cup or other receptacle or container having a generally circular or polygonal base and a wall extending from the base, having a cylindrical or polygonal prism shape, and forming a space for holding a liquid and / or solid, e.g., food and / or beverage. Additionally, as used herein, the term "liquid" may include viscous fluids and can also be extended to include solids, such as aggregates of fine or large particles, such as, but not limited to, sugar crystals, salt crystals, candy or spice pieces, and the like. Thus, as used herein, the term "liquid" may be considered any content, in fluid or solid form, that is accessible or otherwise pourable from a cup.

[0056] Also, it should be noted that at least some embodiments may be described as a method (i.e., process) that is depicted as a flowchart, a flow diagram, a structure diagram, or a block diagram. Although a flowchart may describe operations as a sequential method, many of the operations may be performed in parallel or concurrently. The order of the operations may also be rearranged. A method (i.e., process) ends when the operations are completed.

[0057] As used herein, the word "comprising" and variations thereof, such as "comprises," have their ordinary meaning in accordance with international patent practice. That is, the word does not exclude additional or unrecited elements, materials, or method steps in addition to those specifically recited. Thus, a described device, material, or method may have other elements, materials, or steps in various embodiments. As used herein, the word "comprising" (and its grammatical variations) is used in the inclusive sense of "having" or "including," and not "consisting only of."

[0058] Conditional language such as "can," "could," "might," or "may," unless otherwise specified or understood within the context in which it is used, is generally intended to convey that certain embodiments include certain features, elements, and / or steps, while other embodiments do not. Thus, such conditional language is generally not intended to imply that the features, elements, and / or steps are in any way required for one or more embodiments, nor is it generally intended to imply that one or more embodiments necessarily include logic that determines, with or without user input or assistance, whether those features, elements, and / or steps are included in or performed in any particular embodiment.

[0059] As used herein, terms of degree, such as "approximately," "about," "generally," and "substantially," refer to a value, amount, or characteristic that is close to a stated value, amount, or characteristic that still performs a desired function or achieves a desired result. For example, the terms "approximately," "about," "generally," and "substantially" can refer to an amount within ranges of less than 10%, less than 5%, less than 1%, less than 0.1%, and less than 0.01% of the stated amount.

[0060] The invention(s) described herein may also be broadly stated to comprise the parts, elements and features, and any and all combinations of any two or more of said parts, elements or features, individually or collectively, referred to or shown in the specification of this application, and where a specific integer having known equivalents in the art relevant to the invention is referred to herein, such known equivalents are deemed to be incorporated herein as if individually set forth.

[0061] BRIEF DESCRIPTION OF THE DRAWINGS Notwithstanding any other forms which may fall within the scope of the present invention, preferred embodiments will now be described, by way of example only, with reference to the accompanying drawings, in which: [Brief explanation of the drawings]

[0062] [Figure 1] 1 shows an exemplary configuration of a cup with a lid. [Figure 2] 2 illustrates an exemplary configuration of a cup blank used to make the cup shown in FIG. 1; [Figure 3] 2 shows the cup of FIG. 1 with the second closure flap in a folded-over position. [Figure 4] 1 shows a first fold formed within the first closure flap. [Figure 5] 10 shows a second fold formed within the second closure flap. [Figure 6] 1 shows the first closure flap in a closed position. [Figure 7] The second closure flap is shown folded into the closed position. [Figure 8] A force is shown being applied to the top surface of the second closure flap to engage the locking tab of the second closure flap with the locking opening. [Figure 9] 10 shows the locking tab engaged in the locking opening to lock the lid in the closed position. [Figure 10] 10 shows the force applied to the top surface of the second closure flap to release the locking tab. [Figure 11] The locking tab is shown disengaging from the locking opening. [Figure 12] 1 shows the outlet opening and the cover in a closed position covering the outlet opening. [Figure 13] 1 shows the cover in an open position so that the outlet opening is accessible and open. [Figure 14] The longitudinal edges are shown overlapping and glued together, with a notch in one of the longitudinal edges. [Figure 15] FIG. 10 is a side view showing the second closure flap moving in the folded direction. [Figure 16] FIG. 10 is a side view showing the second closure flap moving in the folded direction. [Figure 17] FIG. 10 is a front view showing the second closing flap moving in the folded direction. [Figure 18] FIG. 10 is a front view showing the second closing flap moving in the folded direction. DETAILED DESCRIPTION OF THE INVENTION

[0063] Detailed Description of the Preferred Embodiments Cups, such as paper cups and plastic cups, are common in modern society and are used to hold food and / or beverages, i.e., solids and / or liquids. Cups are often disposable cups that are disposed of in landfills or recycled. Commonly used cups often have a separate lid that is attached to the cup to seal the cup. The lid often includes an opening for dispensing the contents of the cup. The lid must also be disposed of in landfills or recycled. Lids are often made of a different plastic material than the cup. Lids can be difficult to use because they must be pressed onto the rim of the cup. This can be difficult, and the lid often does not position properly on the cup. Furthermore, to properly secure the lid to the cup, even pressure must be applied to the entire perimeter of the lid when pressing it against the cup. This can be difficult, leading to mispositioning or crushing the lid.

[0064] The present invention relates to an improved cup. The present invention relates to a cup having a closable lid and a releasable lid. The present invention relates to a cup having an integral lid formed as part of the cup. The lid can be easily opened and closed by folding at least two flaps of the cup to position the lid in a closed position. The integral lid makes it easier to close the cup compared to a separate lid that must be pressed onto the cup. Furthermore, the integral lid may be reused, recycled, or disposed of with the cup. The integral lid reduces the number of parts and may help reduce overall waste generated because there is no separate lid on the cup.

[0065] The present invention relates to cups, particularly but not exclusively to cups having a closable lid, the cup having an integral lid, i.e., the lid is not a separate part, the lid being formed as part of the cup.

[0066] In one configuration, a cup for holding a liquid or solid comprises a base and a wall, the base and wall defining a container having a space for holding a liquid, the cup further comprising a first closure flap and a second closure flap attached to and extending from the wall, the first closure flap and the second closure flap being foldable against the wall, the first closure flap and the second closure flaps being foldable between an open position and a closed position, the first closure flap and the second closure flaps defining a lid when in the closed position, the lid being defined by the first closure flap being folded at least twice to the closed position and the second closure flap being folded at least once to the closed position.

[0067] In one configuration, a cup for holding a liquid or solid includes a base and a wall extending from the base, the wall defining a cylinder or prism having a hollow space therein for holding the liquid or solid, and the cup further includes a lid, the lid including at least two closure flaps, the lid moving to a closed position through at least a three-fold configuration, the three-fold configuration including folding at least one closure flap once and the other flap at least twice. The twice-folded flaps may include at least two diagonal folds and a horizontal fold. The flaps are first folded along the horizontal folds and then folded along the diagonal folds.

[0068] In one configuration, a cup for holding a liquid or solid includes a base and a wall, the wall and the base defining a container including a hollow space for receiving and holding the liquid or solid, the cup further including a first closure flap attached to and extending from the wall, the first closure flap and the second closure flap being separate from each other (i.e., not connected to each other), the first closure flap and the second closure flaps being foldable along a fold between an open position and a closed position, the first and second closure flaps defining a lid that is closed by folding the first closure flap and the second closure flaps to the closed position, the first closure flap including three edges, the three edges including two opposing arcuate edges and a middle edge extending between the two arcuate edges, the middle edge may include a curved edge, and each of the arcuate edges includes two arcuate sections, each arcuate section having a different arc length. Further, the two arcuate sections have different radii, and the two arcuate sections provide an additional sealing lip when the first closure flap is folded, the first closure flap being folded at least twice and the second closure flap being folded at least once to move to the closed position to define a closed lid.

[0069] The cup is formed using a blank. The blank defines a wall, a first closure flap, and a second closure flap. The blank also includes a plurality of folds. The closure flaps are foldable along the folds to fold between an open position and a closed position. The first closure flap includes at least two diagonal folds. The blank includes a first lateral fold and a second lateral fold. The first closure flap is associated with the first lateral fold to allow the first closure flap to be folded along the first lateral fold. The second closure flap is associated with the second fold to allow the second closure flap to be folded along the second fold.

[0070] In a further aspect, a cup blank used to form a cup comprises a wall, a first closure flap attached to and extending from the wall, and a second closure flap attached to and extending from the wall, the first closure flap and the second closure flap being integrally formed with the wall, the blank being of one-piece construction, the first closure flap including a pair of opposing arcuate edges and an intermediate edge extending between the arcuate edges, the first closure flap comprising two diagonal folds, the first closure flap being attached to the wall at the first lateral fold and the second closure flap being attached to the wall at the second lateral fold, wherein in use the first closure flap is initially foldable around at least the diagonal folds and is foldable around the first lateral fold and the second closure flap is foldable around the second lateral fold, and a lid is formed by folding the first closure flap twice and the second closure flap once. The blank includes a third lateral fold disposed on the second closure flap, the second closure flap being foldable around the third lateral fold and / or the second lateral fold, and the second lateral fold and the third lateral fold are curved. The third lateral fold and the second lateral fold include opposing bends.

[0071] FIG. 1 illustrates one embodiment of a cup 100 for holding a liquid or solid therein. The cup 100 includes a base 110 and a wall 200. The wall 200 is attached to the base and extends upward from the base 110. The wall 200 terminates at a top 120, which is an opening. The wall 200 is an upright wall. The wall 200 is a continuous wall and, as shown in FIG. 1, is cylindrical or prism-shaped. The wall 200 defines a container having a space 202 therein. A liquid, solid, or other substance can be placed in and held within the container 202. The wall 200 defines the boundary of the space 202. The base 110 is integral with the wall 200. The base 110 may be formed by bending or folding a lower portion of the wall to form the base. The folded or bent lower portions may be glued together, welded, or attached by any other suitable method to form the base.

[0072] Alternatively, the base 110 may be a separate piece that is joined to the lower region of the wall 200. In this alternative construction, the base 110 may be a separate disk-shaped piece that is glued to the lower portion, e.g., the lower edge, of the wall to form the base 110.

[0073] The cup 100 includes a lid 300. The lid 300 is integral with the wall 200 and positioned around the top 120. The lid 300 is connected to the wall 200. The lid 300 and the wall 200 may form a monolithic structure. The lid 300 is configured to move between an open position and a closed position. The lid 300 folds to a closed position and unfolds to an open position. The one-piece lid 300 is advantageous because it allows a user to easily fold and unfold the lid, making it easy to open and close. The user does not need to properly align the lid with the top edge of the cup and then apply even pressure to secure the lid. Additionally, the one-piece lid means that the lid cannot be lost.

[0074] The lid 300, the walls 200, and the base 110 are all formed from the same material. For example, in one form, the cup 100 can be formed from paper or paperboard. In another form, the cup 100 (i.e., the base 110, the walls 200, and the lid 300) can be formed from cardboard. In a further form, the cup 100 (i.e., the base 110, the walls 200, and the lid 300) can be formed from a natural fiber material, such as jute. In a further form, the cup 100 can be formed from a composite material including natural and synthetic fibers. In a further form, the cup 100 can be formed from a plastic material or polymer, such as a thermoplastic polymer. In a further form, the cup 100 can be formed from a recycled or recyclable plastic material.

[0075] In one exemplary structure, the material of the cup 100 may be a multi-layer paperboard having at least two overlapping fibrous layers. The multi-layer paperboard may include three or more plies. At least one ply, such as the middle ply, may include chemical pulp, bleached chemical pulp, or bleached chemi-thermomechanical pulp. The outer plies may be formed from bleached pulp. The multi-layer paperboard may be coated with a suitable coating material to provide heat resistance or strength to the paperboard. For example, a liquid barrier material or an impact-resistant material may be added as a coating. Some examples of coatings may include a polymer film or biopolymer coating, a PE coating, a PP coating, or a plant-based coating, which may be further advantageous because it is fully biodegradable. The material of the cup 100 may also include pigments to provide color.

[0076] The cup may include graphics, logos, or other indicia disposed thereon. For example, the exterior surface of wall 200 may include a logo or other indicia such that the logo or other indicia is visible to a user. The exterior or outer surface of lid 300 may include a logo, graphic, or other indicia such that the logo or other indicia is visible to a user, for example, when the user is drinking from the cup.

[0077] Cup 100 may be any suitable size. Cup 100 may be sized to have a volume between 4 ounces and 20 ounces. Receptacle or space 202 may have a volume between 4 ounces and 20 ounces. For example, cup 100 may be sized such that the volume of the cup (or space 202) can be any one of 4 ounces, 5 ounces, 6 ounces, 7 ounces, 8 ounces, 9 ounces, 10 ounces, 12 ounces, 16 ounces, and 20 ounces. Alternatively, cup 100 may be sized and shaped to define any suitable volume. Cup 100 may have a standard volume size.

[0078] The cup 100 may be frusto-conical when the cup 100 is formed from the blank 500 shown in FIG. 2 . The cup 100 has a frusto-conical shape, as shown in FIG. 1 . The cup wall 200 may be formed as a tapered cylinder or a tapered prism having a polygonal prismatic cross-section. The wall 200 tapers inward toward the base 110 such that the base 110 is narrower than the top 120. Preferably, the wall 200 forms a tapered cylinder. Preferably, the base is circular and the top is substantially circular. Preferably, the shape of the cup allows the cup to be stackable, with the base 110 nestable within the top 120, thus allowing multiple cups to be stacked together for storage or transport. Several exemplary configurations of the cup 100 are described.

[0079] In one configuration, the cup 100 may have a top with a diameter of 62 mm, a height of 62 mm, and a base with a diameter of 46 mm. In another configuration, the cup 100 has a top with a diameter of 70 mm, a height of 80 mm, and a base with a diameter of 46 mm. In another configuration, the cup 100 has a base with a diameter of 46 mm, a height of 92 mm, and a top with a diameter of 70 mm. In yet another configuration, the cup 100 has a base with a diameter of 48 mm, a height of 102 mm, and a top diameter of 73 mm. In another configuration, the cup 100 has a base with a diameter of 57 mm, a height of 90 mm, and a top with a diameter of 80 mm. In another configuration, the cup has a base diameter of 60 mm, a height of 95 mm, and a top diameter of 90 mm. In another configuration, the cup 100 has a 90 mm top diameter, a 109 mm height, and a 60 mm base diameter. In a further configuration, the cup 100 has a 60 mm base, a 90 mm top diameter, and a 111 mm height. In another configuration, the cup 100 has a 60 mm base diameter, a 136 mm height, and a 90 mm top diameter. In a further configuration, the cup 100 has a 60 mm base diameter, a 150 mm height, and a 90 mm top diameter. The cup may be sized according to any one of the described configurations. Alternatively, the cup 100 may have any other suitable dimensions.

[0080] FIG. 1 shows an exemplary form of a cup 100. FIG. 2 shows a blank 500 for the cup 100 shown in FIG. 1. The blank 500 defines the two-dimensional form of the cup. The blank 500 is the two-dimensional form of the cup. The blank 500 is a sheet that can be used to cut or stamp or punch out a pattern from the material of the cup. The blank 500 is rolled and folded to form the cup as shown in FIG. 1 and other figures.

[0081] 1 and 2, the cup 100 includes a first closure flap 310 and a second closure flap 320. The first closure flap 310 and the second closure flap 320 are integrally formed with the wall 200, as shown in FIG. 2. The first closure flap 310 and the second closure flap 320 extend outward from the wall 200, as shown in FIGS. 1 and 2. The first closure flap 310, the second closure flap 320, and the wall 200 form a single, continuous, or one-piece, structure. In other words, the cup (i.e., the closure flaps and the wall) form a monolithic structure. The first closure flap 310 has a longer, or greater, height than the second closure flap 320.

[0082] 2, a first closure flap 310 and a second closure flap 320 extend upward from the wall 200. The first closure flap 310 is attached to the wall 200 via a first lateral fold 400. The second closure flap 320 is attached to the wall 200 via a second lateral fold 402. The first closure flap 310 is foldable around the first lateral fold 400, and the second closure flap 320 is foldable around the second lateral fold 402.

[0083] The first closure flap 310 comprises multiple portions. Referring to Figures 1 and 2, the first closure flap comprises a pair of side flaps 311, 312 and an intermediate flap 313. The first closure flap 310 comprises a first side flap 311 and a second side flap 312. The intermediate flap 313 extends between the side flaps 311, 312. The intermediate flap 313 connects the two side flaps 311, 312. Each side flap 311, 312 is attached to an opposite edge of the intermediate flap 313 by a longitudinal fold. The first side flap 311 is attached to the intermediate flap 313 by a first longitudinal fold 420. The second side flap 312 is attached to the intermediate flap by a second longitudinal fold 421. Longitudinal folds 420, 421 extend vertically on the first closure flap 310.

[0084] The first side flap 311 is attached to the wall 200 at a first side fold 430. The second side flap 312 is attached to the wall 200 at a second side fold 431. The middle flap 313 is attached to the wall at a first lateral fold 400. The first side flap 311, the second side flap 312 and the middle flap 313 are formed as a one-piece structure.

[0085] Each side flap 311, 312 has an arcuate edge. The first side flap 311 has a first arcuate edge 330. The second side flap 312 has a second arcuate edge 331. The arcuate edges 330, 331 can be identical or substantially similar in size and shape. The side flaps 311, 312 are identical or substantially similar in size and shape. The arcuate edges 330, 331 of each side flap have a first curved portion 332 and a second curved portion 333, and the two curved portions define the arcuate edge. The first curved portion 332 and the second curved portion 333 have different arc lengths, or perimeters. In the illustrated example, the second curved portion 333 is longer than the first curved portion. Additionally, the intermediate flap 313 has a curved edge 334. The arcuate edges 330, 331 and the curved edge 334 define the free edges of the first closure flap 310. The arcuate edges 330, 331 and the curved edges are free edges.

[0086] Each side flap 311, 312 includes a distal panel 340 and a proximal panel 342. The proximal panel 342 of each side flap is proximal to the intermediate flap 313. The distal panel 340 is distal to the intermediate panel 313. The first closure flap 310 includes two diagonal folds 440, 441. Each side flap includes a diagonal fold. The diagonal folds 440, 441 separate the proximal panel 342 and the distal panel 340. Each side flap 311, 312 is foldable along the diagonal folds 440, 441. In use, each side flap 311, 312 is folded around the side folds 430, 431.

[0087] The first lateral fold 400 has a curved shape. The first lateral fold has an arc. The first lateral fold has a concave curvature. By concave, we mean that it curves toward the base 110, i.e., the lower edge 210 of the wall. The lower edge 210 of the wall is arc-shaped. The lower edge 210 has a convex curve, i.e., it curves toward the apex 120. The lower edge 210 is used to form the base 110, or alternatively, a separate piece, such as a disk of material, is attached to the lower edge 210 as part of forming the cup.

[0088] The cup 100 includes a third lateral fold 404. The third lateral fold 404 is disposed on the second closure flap 320. The third lateral fold 404 is disposed adjacent to the second lateral fold 402. The second lateral fold 402 and the third lateral fold 404 are curved. The two lateral folds 402, 404 include opposing bends. In the configuration shown, the second lateral fold 402 includes a concave curvature. The third lateral fold 404 includes a convex curvature.

[0089] 1 and 2, the first closure flap 310 includes a locking opening 600. The locking opening 600 may be semicircular. The locking opening 600 may have any other suitable shape, such as a crescent shape. The locking opening 600 is a cutout in the first closure flap 310. The second closure flap 320 includes a locking tab 602. The locking tab 602 extends outward from a free edge 334 of the second closure flap 320. The free edge 334 is preferably a straight edge, but may include a bend therein if the cup 100 is formed by rolling the wall 200.

[0090] The wall 200 includes a first longitudinal edge 212 and a second longitudinal edge 214. The second longitudinal edge 214 may include a C-shaped notch 216. The C-shaped notch 216 is located at the side fold when the first longitudinal edge 212 and the second longitudinal edge 214 overlap to form a cylinder or prism, as shown in FIG. 14 . The C-shaped notch 216 helps reduce stiffness for folding, thereby allowing both side flaps 311, 312 to fold with similar force applied by the user. This makes the folding of the side flaps and the folding of the first closure flap 310 more intuitive and easier. The C-shaped notch may be an optional feature.

[0091] The wall further includes one or more vertical folds 450 formed on and / or within the wall 200. As shown in at least FIGS. 1 and 2, the wall 200 includes four vertical folds 450. The vertical folds extend a partial distance along the wall. The vertical folds 450 extend longitudinally along the wall 200, i.e., parallel to the longitudinal axis of the wall 200. Two vertical folds 450 align with the longitudinal folds 420, 421. Two other vertical folds extend away from the second closure flap 320 and align with the vertical edges 321, 322 of the second closure flap 320. The four vertical folds 450 facilitate easy rolling of the wall 200. The wall can be folded or rolled to attach the two longitudinal edges 214, 212 together. The vertical folds 450 help make it easier to roll the wall 200. The vertical folds 450 can be lines or weakened areas.

[0092] Cup 100 further includes an outlet opening 700 and a foldable cover 702, as shown in Figures 12 and 13. The foldable cover 702 is movable between a closed position and an open position. When cover 702 is in the open position, outlet opening 700 is exposed. When cover 702 is in the open position, outlet opening 700 is accessible by a user so that the contents of the cup can exit opening 700. Outlet opening 700 is covered by cover 702 when the cover is in the closed position.

[0093] The cup 100 is formed using an automated process. The cup 100 may be formed by a cup forming machine. The blank 500 can be used as a pattern to stamp or cut the shape of the blank. The cup 100 is formed by rolling the walls and attaching the longitudinal edges 212, 214 to one another. The longitudinal edges 212, 214 may be glued or welded to one another. The vertical fold 450 can help roll the walls to form the frusto-conical shape of the cup 100. The blank 500 can be used to cut multiple patterns to form multiple cups 100.

[0094] Next, a method of using the cup 100 will be described. The lid 300 is formed by folding the first closure flap 310 and the second closure flap 320. The first closure flap 310 is folded twice to move the first closure flap 310 to the closed position. The second closure flap 320 is folded once to move the second closure flap 320 to the closed position. Figures 4 to 6 illustrate the process of folding the first closure flap 310 to the closed position. The lid 300 is formed by a three-fold arrangement. The first closure flap 310 is folded twice and the second closure flap 320 is folded once to close the lid. Figure 4 shows the first fold of the first closure flap 310. The first closure flap is folded along the diagonal folds 440 and 441. Figure 5 shows the second folding of the first closure flap 310, where the first closure flap is folded around the first lateral fold 400. Figure 6 shows the first closure flap 310 in a folded position. Figure 7 shows the second closure flap 320 folded around the second lateral fold 402. Figure 9 shows the lid in a closed position.

[0095] 4, the first closure flap is folded along the side folds 430, 431 and the lateral fold 400. In particular, the side flaps 311, 312 are folded inward, i.e., toward each other, along the side folds 430, 431. The middle flap 313 is folded inward along the lateral fold.

[0096] The first closure flap 310 is folded around the diagonal folds 440, 441 as shown in Figures 4 and 5. Each side flap 311, 312 is folded around the diagonal folds 440, 441 to form a second fold of the first closure flap 310. The folding around the diagonal folds 440, 441 forms a pair of opposing arcuate lips. The opposing inward arcuate lips are defined by the arcuate edges 330, 331 of each side flap 311, 312. The intermediate flap 313 is folded along the diagonal folds 440, 441 and the lateral fold 400. The arcuate edges 330, 331 of each side flap and the curved edge 334 of the intermediate flap form a folded flap. The edges of the side and middle flaps form three surfaces, and the three lips form a seal that prevents the contents of the cup from spilling when the cup is turned or tilted for drinking or when it is turned against the middle flap. The proximal and distal panels of each side flap 311, 312 and middle flap 313 are spaced apart such that the flaps overlap each other when folded into the closed position.

[0097] FIG. 6 shows the first closure flap 310 in a fully closed orientation (i.e., the closed position of the side flaps 311, 312 and the middle flap 313). As shown in FIG. 5, the side flaps 311, 312 are folded inward, with the arcuate edges 330, 331 folded toward each other. The middle flap 313 rests on top of the folded side flaps 311, 312. The first curved portion 332 of each side flap 311, 312 is longer than the second curved portion 333. The first curved portion 332 of each side flap 311, 312 extends closer to each other in the folded position compared to the second curved portion 333 of each side flap 311, 312. The two curved portions 332, 333 form a curved sealing surface to prevent the contents of the cup from spilling.

[0098] The curvature of the curved edge 334 of the intermediate flap 313 corresponds to the curvature of the second lateral fold 402, as shown in Figures 1, 5 and 6. As shown in Figure 6, the intermediate flap 313 has a length that extends across the apex such that the curved edge 334 of the intermediate flap 313 rests against the second lateral fold 402. Figure 6 shows how the intermediate flap 313 extends the apex 120 and extends from one side of the cup to the other to seal off the cup.

[0099] 6 shows the matching bend of the second lateral fold 402 and the curved edge 334 of the intermediate flap 313. The matching bend is advantageous because it improves the seal of the cup, helping to prevent, or at least reduce the likelihood of, the contents of the cup leaking out.

[0100] The second closure flap 320 is folded around the second lateral fold 402, as shown in Figure 7. The second closure flap 320 rests on top of the intermediate flap 313, as shown in Figure 9. The locking tab 602 is pressed into the locking opening 600, as shown in Figure 8. A downward force is applied by the user to further insert the locking tab 602 into the locking opening 600. The locking tab received in the locking opening locks the second closure flap 320 to the first closure flap 310, thereby locking the lid in a closed position.

[0101] The concave shape of the second folding portion 402 allows the second closure flap 320 to be easily folded into the closed position, allowing a user to easily engage the locking tab 602 with the locking opening 600. The concave shape of the second folding portion 402 allows a user to fold the second closure flap 320 without tipping over the folded first closure flap 310, reducing the force required to fold the second closure flap 320 and lock the flap 320.

[0102] The locking tab 602 can be unlocked from the locking opening 600 by applying force to the top surface of the lid 300, as shown in FIG. 10 . More specifically, to open the lid 300, a user can apply force (i.e., push down) on the second closure flap 320 when it is in the folded position, as indicated by the arrow shown in FIG. 10 . The locking tab 602 is removed from the locking opening 600, and the second closure flap 320 moves upward, as shown in FIG. 11 . The second closure flap 320 is biased upward by the concave shape of the second lateral fold 402. This concave shape of the fold 402 provides additional tension to form a better seal.

[0103] Preferably, audible or tactile feedback is provided when the locking tab 602 engages with the locking opening 600. Additionally, audible or tactile feedback is provided when the locking tab 602 disengages from the locking opening 600. The audible feedback includes an audible click sound caused by the curved upper surfaces of the first closure flap 310 and the second closure flap 320. The audible click sound also results from the second closure flap 320 being biased upward, i.e., the second closure flap expanding and contracting to produce the click sound. The closure flap 320 expands, i.e., moves upward, due to the upward bias.

[0104] Locking opening 600 is shown as a cut-out opening in this example, however, opening 600 may take other forms including a slit, cut, slot, or any other receiving structure that can be cut or pressed into the flap to receive locking tab 602.

[0105] The second closure flap 320 can be folded back. The second closure flap 320 is configured to be foldable at angles between 0 and 180 degrees. The second closure flap 320 is in a fully open position when the second closure flap is at 0 degrees, as shown in FIGS. 2 and 16. The second closure flap 320 is in a closed position when the second closure flap is at 180 degrees, as shown in FIGS. 9 and 10. The second closure flap 320 is perpendicular to the first closure flap 310 when at 0 degrees, as shown in FIG. 16. The second closure flap 320 can also be positioned at 90 degrees, as shown in FIG. 15.

[0106] The third lateral fold 404 is disposed on the second closure flap 320. The third lateral fold 404 is disposed adjacent to the second lateral fold 402. The second closure flap 320 is foldable around the third lateral fold such that the second closure flap can move at an angle between 0 degrees and 180 degrees, any angle between 0 degrees and 180 degrees relative to the horizontal. As shown in FIGS. 3 and 16 , when the second closure flap 320 is fully folded back, i.e., at 0 degrees, a user can see the interior of the cup and determine the cup's fill level. The folded second closure flap 320 allows a user to view the fill level when the cup is being filled, for example, by a beverage dispenser. Furthermore, the second closure flap 320 may be folded back by a user to open the cup while forming a lip for the user to drink directly from or access the contents of the cup.

[0107] Figures 17 and 18 show front views of the cup. Figure 17 shows the second closure flap 320 at a 90-degree position relative to the horizontal. Figure 17 shows the second lateral fold 402 and the third lateral fold 404. The second lateral fold 402 and the third lateral fold 404 are curved. The two folds are curved in opposite directions. Figure 17 more clearly shows the convex curvature of the third lateral fold 404 and the concave curvature of the second lateral fold 402. As shown in Figure 18, which is a front view of Figure 16, the second closure flap 320 is folded around the third lateral fold to the 0-degree position, i.e., the closure flap is folded back to expose the hollow space 202.

[0108] The second lateral fold 402 and the third lateral fold 404 have opposing bends. The third lateral fold 404 is a convex bend, and the second lateral fold 402 is a concave fold. The convex shape of the third lateral fold 404 allows the second closure flap 320 to be folded without upsetting or disturbing the rest of the structure, such as the folded first flap 310. Figure 16 shows the second closure flap 320 in a folded position. Figures 4-6 show the second closure flap 320 in a folded position while the first closure flap 310 is folded without interference.

[0109] 12 and 13 show the outlet opening 700 and the foldable cover 702. FIG. 12 shows the cover 702 in a closed position, covering the outlet opening 700. FIG. 13 shows the cover 702 in an open position, allowing access by the user. The outlet opening 700 and cover 702 remain closed due to the bending of the first closure flap 310 and the second closure flap 320. The cover 702 must be opened manually, thereby reducing the possibility of accidental spills through the outlet opening 700. The cover 702, in combination with the arcuate lip formed by the folded side flaps, improves the cup's seal. The outlet opening 700 is sized to allow a straw or stirring rod to be inserted into the cup. The opening 700 is large enough to allow a user to drink through it.

[0110] FIG. 14 shows how the longitudinal edges overlap to form a cylindrical or prism shape to define the container. The second longitudinal edge 214 includes a notch 216. The notch 216 is a C-shaped notch. The C-shaped notch 216 is located at the side fold when the first and second longitudinal edges overlap to form the cylinder or prism, and the C-shaped notch improves the foldability of each side flap. The C-shaped notch reduces the stiffness of the side flaps, thus making them easier to fold. The side flaps 311, 312 can be folded with a similar force applied by the end user, making it easier to form the lid.

[0111] 12 and 13 show the lid 300 in a closed configuration. The lid 300 has a curved upper surface. The upper surface of the lid 300 is curved inward, i.e., has a concave curvature. As shown in FIGS. 12 and 13, the first closure flap 310 and the second closure flap 320 each have a curved upper surface. The upper surface 314 of the first closure flap 310 and the upper surface 324 of the second closure flap 320 are curved in the same direction. The first closure flap 310 and the second closure flap 320 have a concave curvature, i.e., the flaps are curved inward. More specifically, as shown in FIGS. 12 and 13, the middle flap 313 of the first closure flap and the second closure flap 320 have a concave curvature.

[0112] The cup 100 has straight side edges. Each side fold 430, 431 is defined along the straight edge of the wall 200. The top surface 314 of the first closure flap and the top surface of the second closure flap have a concave curvature. The straight edges on each side of the cup allow for easier folding because tension on the side flaps is unidirectional. The concave curvature of the first closure flap 310 and the second closure flap 320, together with the straight edges, creates an inward tension or bias to more easily fold the closure flaps. Furthermore, the concave curvature of the top surface allows the user's nose to be accommodated within the space formed by the curved surface to facilitate drinking from the cup 100.

[0113] The cup 100 described herein offers several advantages as described herein. The shape and structure of the cup 100 make it easier to close the lid. The cup includes first and second closure flaps that define the lid. The closure flaps are integrated with the cup wall, thus creating a one-piece lid. The first closure flap is folded twice, and the second closure flap is folded once to form the closed lid, as shown in FIG. 12. This three-fold configuration allows for a simple closure method. The first closure flap includes two side flaps with arcuate edges or arcuate free edges. The side flaps are folded inward, and the arcuate edges form multiple, overlapping sealing edges. The side flaps and middle flap overlap each other, creating multiple sealing surfaces, thereby reducing the possibility of leakage from the cup. The second closure flap can be folded directly back to allow for easy viewing of the contents of the cup. The cup includes two folds with two opposing bends. This allows the second closure flap to be folded 180 degrees, so that the second closure flap can be closed or fully opened.

[0114] The term "fold feature" as used herein defines a folding structure around which a flap can be folded. A fold feature can be a fold line. Alternatively, a fold feature can be a weakened area of ​​a flap or wall or other structure of a cup. For example, a fold feature can be a half-cut curve and / or line, a perforated curve and / or line.

[0115] Any description of these alternative embodiments is considered to be exemplary, and any of the alternative embodiments and features thereof may be used in combination with each other or with the embodiments described with respect to the figures.

[0116] While only preferred embodiments of the present invention have been described above, modifications obvious to those skilled in the art can be made thereto without departing from the scope of the present invention. Although the present invention has been described with reference to certain preferred embodiments, it should be understood that the present invention can be embodied in many other forms.

Claims

1. A cup for holding a liquid, comprising: A base and Walls and the base and the wall define a container with a space for holding the liquid; the cup further comprising: a first closure flap and a second closure flap attached to and extending from the wall; the first closure flap and the second closure flap are separate from each other; the first closure flap is attached to the wall at a first lateral fold and includes a pair of opposing diagonal folds defined on the first closure flap; the second closure flap is attached to the wall at a second lateral fold and includes a third lateral fold adjacent the second lateral fold; the first closure flap is foldable against the wall about the first lateral fold and the second closure flap is foldable against the wall about the second lateral fold, the first closure flap and the second closure flaps being foldable between an open position and a closed position, the first closure flap and the second closure flaps defining a lid when in the closed position; the lid is defined by the first closure flap being folded at least twice around the opposing diagonal folds and the first lateral fold to a closed position, and the second closure flap being folded at least once around the second lateral fold to a closed position; The second closure flap is foldable around the third lateral fold so that the second closure flap is positioned on the opposite side of the wall from the space so that a user can view the interior of the cup and determine the fill level.

2. 2. The cup of claim 1, wherein the first closure flap comprises a pair of opposing side flaps and an intermediate flap extending between the side flaps, each of the side flaps being attached to the intermediate flap along a longitudinal fold, each of the side flaps being attached to the wall at a side fold, and the intermediate flap being attached to the wall at the first transverse fold.

3. 3. The cup of claim 2, wherein each of the side flaps comprises a distal panel and a proximal panel, the proximal panel of each of the side flaps being proximal to the intermediate flap and the distal panel being distal to the intermediate flap, and the diagonal fold of each of the side flaps separating the proximal and distal panels.

4. 4. The cup of claim 3, wherein each of the side flaps is folded around the side fold and the proximal panel is folded around the diagonal fold and positioned over the distal panel to define two folds of the first closure flap.

5. The cup of any one of claims 1 to 4, wherein the first and second lateral folds are curved edges.

6. 6. A cup according to claim 1, wherein the first closure flap comprises a locking opening and the second closure flap comprises a locking tab, and when the first closure flap and the second closure flap are in the closed position, the second closure flap rests on top of the first closure flap, and the locking tab of the second closure flap engages with the locking opening of the first closure flap to lock the first and second closure flaps in the closed position.

7. The cup of any one of claims 1 to 6, wherein the second closure flap is movable at an angle between 0 and 90 degrees relative to the third lateral fold.

8. The cup of any one of claims 1 to 7, wherein the second lateral fold and the third lateral fold are arcuate folds.

9. the first closure flap has a curved upper surface; the second closure flap has a curved upper surface; The cup according to any one of claims 2 to 8, wherein the upper surface of the first closure flap and the upper surface of the second closure flap are curved in the same direction.

10. 10. The cup of claim 9, wherein each side fold is defined along a straight edge of the wall, the top surface of the first closure flap and the top surface of the second closure flap have a concave curvature, and the straight edge of each side allows for easy folding of the flap since tension on the flap is unidirectional.

11. Cup according to any one of the preceding claims, wherein the first closure flap comprises an outlet opening formed in the first closure flap.

12. 12. The cup of any one of claims 1 to 11, wherein the second closure flap is foldable to form a lip positioned for a user to access liquid held within the space.

13. A cup blank, comprising: a wall having a first longitudinal edge and a second longitudinal edge; a first closure flap attached to and extending from the wall; a second closure flap attached to and extending from the wall; the first closure flap and the second closure flap are separate from each other; the first closure flap and the second closure flap are integrally formed with the wall, and the blank is of one-piece construction; the first closure flap has a pair of opposing diagonal folds defined thereon and is attached to the wall at a first lateral fold; the second closure flap is attached to the wall at a second lateral fold and includes a third lateral fold adjacent the second lateral fold; in use, a portion of the wall adjacent the second longitudinal edge is connectable to a portion of the wall adjacent the first longitudinal edge to form a cylindrical or prismatic body, the cylindrical or prismatic body defining a hollow space therein to define a container, the first closure flap is foldable first around the diagonal fold and then around the first lateral fold, the second closure flap is foldable around the second lateral fold, and a lid is formable by folding the first closure flap twice and the second closure flap once; the second closure flap is foldable about the third lateral fold so that the second closure flap is positioned on an opposite side of the wall from the hollow space so that a user can view the interior of the cup to determine the fill level. Cup blanks.

14. 1. A method of forming a cup using a blank, the blank comprising a wall, the wall comprising a first longitudinal edge and a second longitudinal edge, the blank further comprising a first closure flap attached to and extending from the wall, and a second closure flap attached to and extending from the wall, the first closure flap and the second closure flap being separate from one another, the first closure flap and the second closure flap being integrally formed with the wall, the blank being of one-piece construction; the first closure flap is attached to the wall at a first lateral fold and includes a pair of opposing diagonal folds defined on the first closure flap; the second closure flap is attached to the wall at a second lateral fold and includes a third lateral fold adjacent the second lateral fold; The method comprises: attaching the portion of the wall adjacent the second longitudinal edge to the portion of the wall adjacent the first longitudinal edge to form a cylindrical or prismatic body, the cylindrical or prismatic body defining a hollow space therein and defining a container; forming or attaching a base; folding the second closure flap around the third lateral fold so that the second closure flap is positioned on an opposite side of the wall from the hollow space so that a user can visualize the interior of the cup and determine the fill level; forming a lid by folding the first closure flap along the diagonal fold to fold two portions of the first closure flap inward; folding the first closure flap around the first lateral fold so that the first closure flap is in a closed position; folding the second closure flap around the second lateral fold so that the second closure flap rests on top of the first closure flap in a closed position, the first and second closure flaps being folded to form a lid; A method comprising:

15. 1. A method of using a cup, comprising: The cup comprises a base and a wall; the base and the wall define a container with a space for holding a liquid; the cup further comprising: a first closure flap and a second closure flap attached to and extending from the wall; the first closure flap and the second closure flap are separate from each other; the first closure flap is attached to the wall at a first lateral fold and includes a pair of opposing diagonal folds defined on the first closure flap; the second closure flap is attached to the wall at a second lateral fold and includes a third lateral fold adjacent the second lateral fold; The method comprises: filling the cup with a beverage using a beverage dispenser; folding the second closure flap around the third lateral fold so that the second closure flap is positioned on an opposite side of the wall from the space so that a user can view the interior of the cup to determine its fill level; forming a lid by folding the first closure flap along the diagonal fold to fold two portions of the first closure flap inward; folding the first closure flap around the first lateral fold so that the first closure flap is in a closed position; folding the second closure flap around the second lateral fold so that the second closure flap rests on top of the first closure flap in a closed position, the first and second closure flaps being folded to form a lid; A method comprising:

Images