This invention relates generally to food storage containers, and specifically to a reusable sandwich container having multiple compartments for housing a plurality of food-related products.
Many workers have elected to bring their lunch from home in a bag or container rather than incur the cost and time associated with eating out. Also, many parents elect to prepare and send lunch to school with their children. Moreover, many people elect to attend picnics and other functions and further elect to bring their own meals. Many known food containers are large enough to be used to contain a sandwich for future consumption. However, because there is usually a long time delay between the preparation and consumption of a sandwich, many sandwiches prepared a period of time prior to consumption may become warm and soggy as the dry sandwich bread absorbs liquid from sandwich contents that include meats, condiments, and toppings such as tomatoes and/or lettuce. Such a sandwich may fall apart or become difficult to consume. Moreover, without refrigeration, over a period of time prior to consumption, the sandwich ingredients will approach ambient temperatures, thereby causing the sandwich to be less appealing. Further, the freshness of the ingredients may be compromised. If certain ingredients are compromised, the entire sandwich could become significantly comprised and possibly cause serious illness in the event of consumption by a user.
Compartmentalized food containers are known in the art. However, few conventional food containers are suitable to be reused and adequate for protecting a sandwich against being flattened as well as losing its freshness in a relatively short time, especially in warm weather. At least some of the known food containers are soft containers, for example, paper and plastic bags. Such containers provide little to no protection against physical damage to the enclosed sandwich. Also, many of the known food containers are single-use containers, thereby increasing waste stream traffic. Further, although some conventional food containers are known to provide temporary sandwich storage, no food container is known which includes a rotatable fluid-tight divider that is adapted to isolate the relatively dry bread from the relatively wet sandwich ingredients in separate compartments so as to prevent the bread from becoming soggy and inedible between the time that the sandwich container is initially packed and the time that the sandwich is ultimately consumed. More particularly, no sandwich container is known having a divider which can be manipulated to assume different configurations so that the storage capacities of different compartments of the container that are isolated by the divider can be selectively adjusted to carry therewithin either slices of dry bread and the wet ingredients for making a sandwich or a ready-to-eat sandwich where the ingredients are placed between the slices within a larger compartment size. Furthermore, no sandwich container is known having a hollow, removable tray to be located in one of the storage compartments wherein the tray is filled with a thermal gel of the kind to be refrigerated or frozen to create a cold pack to chill the sandwich ingredients and prevent spoilage prior to consumption.
In one aspect, a sandwich container is provided. The sandwich container includes an outer housing. The outer housing includes a tray compartment body and a lid compartment body. The tray compartment body is hingedly connected to the lid compartment body. The tray compartment body defines a tray compartment and the lid compartment body defines a lid compartment. The sandwich container also includes a divider hingedly connected to the outer housing. The divider is rotatable from an unseated position to a seated position. The divider is configured to separate the tray compartment from the lid compartment when the divider is in the seated position.
In another aspect, a food container is provided. The food container includes an outer housing comprising a lower body and an upper body. The lower body is hingedly connected to the upper body. The food container also includes a divider hingedly connected to the outer housing. The divider is rotatable from an unseated position to a seated position. The divider and the upper body define an upper compartment and the divider and the lower body define a lower compartment. The divider is configured to separate the lower compartment from the upper compartment when the divider is in the seated position. The divider is movable while in the seated position to change a size of the upper compartment and the lower compartment.
In yet another aspect, a method of assembling a sandwich container is provided. The method includes forming an outer housing by hingedly coupling a tray compartment body to a lid compartment body. The tray compartment body defines a tray compartment and the lid compartment body defines a lid compartment. The method also includes hingedly coupling a divider to the outer housing. The divider is rotatable from an unseated position to a seated position. The divider is configured to separate the tray compartment from the lid compartment when the divider is in the seated position.
The following detailed description illustrates the disclosure by way of example and not by way of limitation. The description clearly enables one skilled in the art to make and use the disclosure, describes several embodiments, adaptations, variations, alternatives, and use of the disclosure, including what is presently believed to be the best mode of carrying out the disclosure.
The effectiveness of a sandwich container can be measured by the temperature and freshness of its sandwich ingredients and the dryness of the bread. The effectiveness of a sandwich container can also be measured by how well it protects the sandwich and/or sandwich ingredients from crushing during transport and storage. Therefore, to be effective, a sandwich storage container should have sufficient strength to reduce a potential for damage to the sandwich. Also, the sandwich storage container should have sufficient strength to withstand repeated use, including repeated washings and openings/closings. Moreover, the sandwich container should provide sufficient internal storage space to either separate the bread slices from the wet ingredients and/or incorporate a mechanism to keep the sandwich ingredients cool and fresh. Furthermore, the sandwich container should facilitate ease of cleaning after each use and then be reused so as to reduce waste.
The sandwich containers described herein, and the methods of assembling such sandwich containers, facilitate storage and transport of sandwiches and sandwich materials. Specifically, the sandwich containers are assembled to maintain a freshness and/or a temperature of a completed sandwich, or the ingredients therein. Also, specifically, the sandwich containers are assembled to maintain the bread in a dry state. More specifically, the sandwich containers described herein provide sufficient internal storage space to either separate the bread slices from the wet ingredients and/or a mechanism to keep the sandwich ingredients cool and fresh. Further, specifically, the sandwich containers are assembled to protect the sandwich and/or sandwich ingredients from crushing during transport and storage. Therefore, the sandwich storage containers described herein have sufficient strength to reduce a potential for damage to the sandwich and to withstand repeated use, including repeated washings. Moreover, the sandwich containers described herein include components that facilitate ease of converting the sandwich containers from storage for sandwich components to storage for ready-to-eat sandwiches with only minor adjustments of the configuration of the sandwich containers. Furthermore, the sandwich containers described herein facilitate ease of cleaning after each use and are then to be reused so as to reduce waste. In alternative embodiments, materials may be used that facilitate fabricating a disposable sandwich container with at least some of the features of the sandwich containers described herein.
Moreover, the containers described herein are substantially sized and configured for sandwiches for exemplary purposes only and are not intended to limit the use of such containers to merely sandwiches. Therefore, the containers described herein are not limited to sandwiches and can be used to house any food product.
In the exemplary embodiment, dual compartment sandwich container 1 includes an outer housing 4 that includes an upper compartment body 3 and a lower compartment body 5, wherein both bodies 3 and 5 are hingedly coupled to each other along respective and opposing rear edges 6 by a hinge 7 extending therebetween. Upper compartment body 3, hereon referred to as upper body 3, defines an upper compartment 10 and lower compartment body 5, hereon referred to as lower body 5, defines a lower compartment 11. Also, in the exemplary embodiment, lower compartment 11 may receive a removable tray 9. Upper body 3 and lower body 5 define a clam-shell-shaped configuration of container 1. Upper compartment 10 is sometimes referred to as the lid or top compartment. Lower compartment 11 is sometimes referred to as a tray or bottom compartment. Upper body 3 includes a rim 2 that defines a perimeter extending around an outer edge of upper compartment 10. Also, lower body 5 includes a rim 8 that defines a perimeter extending around an outer edge of lower compartment 11.
Further, in the exemplary embodiment, removable tray 9 defines a cavity therein (not shown in
In the exemplary embodiment, sandwich container 1 is substantially formed of durable plastic and/or rubber compounds having a size and shape that facilitate receipt and transport of two slices of dry bread and wet ingredients for making a typical sandwich. Alternatively, sandwich container 1 is formed of any materials that enable operation of sandwich container 1 as described herein. Such materials facilitate durability of container 1, reduce a potential of damage to ingredients placed therein during handling and transport of container 1, and are washable and reusable.
Also, in at least one embodiment, removable tray 9 is formed such that air gaps (not shown) may be formed in the vicinity of the perimeter and/or the lower surface of removable tray 9 to further provide at least some insulating features to reduce a potential for formation of condensation within, and on the exterior of, sandwich container 1. Accordingly, removable tray 9 is configured to reduce a potential for introduction of liquids to any dry bread slices (not shown in
Further, in the exemplary embodiment, dual compartment sandwich container 1 includes an adjustable divider 12, that is, specifically, a rotatable, flexible bi-stable divider 12 located between upper and lower compartments 10 and 11, respectively. In the exemplary embodiment, and as discussed further below, divider 12 is sized to be complementary to removable tray 9. Divider 12 is manufactured from silicone rubber, thermoplastic elastomer (TPE) or any suitable elastomeric material that enables operation of sandwich container 1 as described herein. Moreover, divider 12 is manufactured from any materials that enable operation of sandwich container 1 as described herein.
Divider 12 has flexibility characteristics that facilitate selectively changing divider 12 to one of two stable configurations, each described further below, as a function of the contents to be carried within upper and lower compartments 10 and 11, respectively, as discussed further below. Alternatively, divider 12 is manufactured from any material that enables operation of sandwich container 1 including, without limitation, hard plastics. Adjustable divider 12 is hingedly coupled to lower body 5 along respective and opposing edges 13 of lower body 5 and divider 12 by a hinge 14. Divider 12 is adapted to rotate at hinge 14 in either of the directions indicated by a directional arrow 15 (only shown in
Dual compartment sandwich container 1 also includes a hard plastic locking tang 16 that extends upwardly from a front of lower body 5 opposite hinge 7. An open window 17 is defined within locking tang 16 (shown in
In the assembled and closed sandwich container configuration, tray 9 is removably received within lower compartment 11 and divider 12 is rotated at hinge 14 from its unseated position to its seated position in order to cover tray 9 and thereby form a substantially air and moisture-tight barrier to isolate upper and lower compartments 10 and 11, respectively, from each another. Moreover, upper body 3 is rotated at hinge 7 towards lower body 5 to extend over divider 12. Locking slot 22 of divider 12 is substantially aligned with locking tang 16, extending from lower body 5. As upper body 3 is rotated over divider 12, flexible locking clasp 18 of upper body 3 will first be bent by hard plastic locking tang 16 to store energy and then snap into detachable locking engagement with locking tang 16 at open window 17 formed therein. That is, flexible locking clasp 18 has a spring memory that induces clasp 18 to release stored energy such that it snaps into, and maintains detachable locking engagement with, locking tang 16 whenever sandwich container 1 is fully closed. While locking clasp 18 engages locking tang 16, sandwich container 1 will be held in the closed (and locked) configuration (as shown in
Dual compartment sandwich container 1 further includes an integral push button 26 formed at an exterior portion of front portion 19 of upper body 3 and is operatively coupled to locking clasp 18. Push button 26 is preferably manufactured from a resilient material which may be momentarily compressed, such that a manual pushing force applied thereto in the direction of a directional arrow 28 (only shown in
Dual compartment sandwich container 1 also includes a lifting lip 30 integrally formed with divider 12, wherein lifting lip 30 extends from divider 12 opposite hinge 14. A lifting slot 32 is formed in lower body 5 opposite hinge 14, wherein slot 32 receives lifting lip 30 when divider 12 is closed upon lower body 5. Specifically, when divider 12 is rotated at hinge 14 towards lower body 5 to its seated position covering tray 9, lifting lip 30 will be removably received within lifting slot 32. Thus, lifting lip 30 will be conveniently accessible to receive a lifting force applied thereto when it is desirable to rotate divider 12 away from lower body 5 and towards its unseated position (as shown in
Divider 12 includes a plurality of segments that are each coupled together at an associated hinge mechanism. Specifically, the plurality of segments of divider 12 include a flat traverse member, or base 36, a peripheral inner lip, or inner rim 38, a peripheral outer lip, or outer rim 39 opposite to rim 38, and a sloping intermediate wall 40 extending between base 36 and rim 38. Divider inner rim 38 and outer rim 39 define a perimeter extending around an outer edge of divider 12. Regardless of the disposition of removable tray 9, that is, inserted or not inserted within sandwich container 1, when divider 12 is moved to a closed position, divider inner rim 38 contacts lower body rim 8 and forms a seal thereon.
Moreover, divider 12 includes a first and a second hinge mechanism, that is, a first and a second thin reversing crease 42 and 44, respectively. Reversing creases 42 and 44 are configured and positioned such that the segments, that is, base 36, rim 38, and wall 40 can be displaced relative to one another, whereby divider 12 can be manipulated by the user to either one of a stable upper, or raised cap position/configuration, or a stable lower, or recessed dish position/configuration in response to a pressing force applied thereto. More specifically, reversing creases 42 and 44 are portions of divider 12 that are made of substantially similar materials as adjoining portions of divider 12, however, reversing creases 42 and 44 are thinner than such adjoining portions, thereby at least partially weakening those portions of divider 12 defined by reversing creases 42 and 44. Also, specifically, flat base 36 is hingedly coupled to intermediate wall 40 by reversing crease 42 therebetween and intermediate wall 40 is hingedly coupled to peripheral rim 38 by reversing crease 44 therebetween. Therefore, in the exemplary embodiment, a storage capacity of lower compartment 11 can be selectively adjusted to receive removable tray 9 with or without the wet ingredients for making a sandwich lying therein. Moreover, adjustable divider 12 facilitates forming a substantially air and moisture-tight barrier between upper and lower compartments 10 and 11, respectively. In the exemplary embodiment, divider 12 includes two reversing creases. Alternatively, divider 12 includes any number of reversing creases that enable operation of divider 12 as described herein.
Moreover, a plurality of dry slices of sandwich bread 48 are located in upper compartment 10, and divider 12 is rotated to its seated position over tray 9 to segregate dry bread 48 from wet ingredients 46. In order to accommodate tray 9 and sandwich ingredients 46 within lower compartment 11, an upward pushing force is applied to base 36 of divider 12 to cause divider 12 to assume its raised cap configuration. More specifically, reversing crease 42 flexes such that base 36 of divider 12 is moved upwardly relative to peripheral rim 38. At the same time, reversing crease 44 flexes so that intermediate wall 40 is also moved upwardly relative to peripheral rim 38 to increase the size and storage capacity of lower compartment 11.
Moreover, divider 400 includes a pair of reversing creases, that is, an upper reversing crease 410 and a lower reversing crease 412 that are substantially similar to continuous reversing creases 42 and 44 (shown in
In this exemplary alternative embodiment, each of creases 410 and 412 are configured to have a concave/convex shape (from an inward/outward perspective, respectively) with respect to wall 408, thereby defining a slight bend in wall 408 in the immediate vicinities of creases 410 and 412. Such slight bend and concave shape facilitates inducing a biasing within each of crease 410 and 412, thereby facilitating reducing mechanical stresses induced therein and increasing longetivity and durability of creases 410 and 412 throughout a multitude of user manipulation between the two aforementioned positions/configurations. Crease 410 separates wall 408 into an upper wall 411 between crease 410 and inner rim 406 and a lower wall 413 between crease 410 and lower crease 412.
Divider 400 also includes an outer rim 414 that defines an outer periphery of divider 400, wherein outer rim 414 includes a lifting latch 416, similar to lifting lip 30 (shown in
Both wiping ribs 442 and 444 have sufficient flexibility to bend inward as shown by bi-directional arrows 446 when upper body 3 is lowered towards lower body 5, wherein both bodies 3 and 5 are manufactured from a plastic material including, without limitation, polypropylene. Moreover, both wiping ribs 442 and 444 have sufficient flexibility to bend outward to return to their original positions when upper body 3 is raised away from lower body 5 as also shown by bi-directional arrows 446.
Sealing mechanism 440 also includes a reinforcing device, or stiffening ring device 450 that includes an upright ring section 452 and a unitarily-formed lateral ring section 454. Stiffening ring device 450 is manufactured from a plastic material including, without limitation, polypropylene, and facilitates circumferential support and stiffness. Stiffening ring device 450 extends about the entire inner and outer peripheries defined by inner rim 406 and outer rim 414, respectively. Therefore, during an inward flex of wiping rib 442, it wipes, that is, it slides and depresses against upper body sealing surface 443, thereby forming an upper seal. Moreover, during an inward flex of wiping rib 444, it wipes, that is, slides and flexes against lower body sealing surface 445, thereby forming a lower seal. Move over, the upper seal is at least partially formed when upper body sealing surface 443 contacts divider upper sealing lip 417 and the lower seal is at least partially formed when lower body sealing surface 445 contacts divider lower sealing lip 419.
Modulating the stiffness values of TPE used in portions of sealing mechanism 440 facilitates sealing of the sandwich container and shifting between two, or more, positions/configurations. One method of modulating such stiffness includes injection molding techniques, such as overmolding, during fabrication of portions of sealing mechanism 440. Overmolding of a hard material, such as polypropylene, with a more stiff TPE facilitates wall 408 retaining its raised cap position/configuration while facilitating greater durability between configuration changes. An additional overmold of another, less stiff TPE material, facilitates a more flexible seal contact area along outer rim 414, divider upper sealing lip 417, divider lower sealing lip 419, upper wiping rib 442, and lower wiping rib 444. Such sealing mechanism is referred to as a triple-shot sealing mechanism used to describe use of a hard plastic, a stiff TPE rubber, and a less stiff TPE rubber therein.
In addition to functioning as a flexible divider for division of internal compartments 10 and 11, divider 400 also provides seal features between internal compartments 10 and 11 of sandwich container 1. Specifically, in addition to functioning as a multi-position divider, divider 400 may further include two flexible materials of differing hardness/stiffness values such that one of the flexible membrane materials has a higher hardness/stiffness value that is optimized for the function of divider 400 as a multi-position compartment divider and the other flexible material has a softer hardness/stiffness value that is optimized for providing a sealing feature, for example, sealing mechanisms 400 and 440, between divider 400 and outer housing 4 of sandwich container 1.
Both wiping ribs 462 and 464 have sufficient flexibility to bend upward and downward, respectively, as shown by bi-directional arrows 466 when upper body 3 is lowered towards lower body 5, wherein both bodies 3 and 5 are manufactured from a plastic material including, without limitation, polypropylene. Moreover, both compression ribs 462 and 464 have sufficient flexibility to return to their original positions when upper body 3 is raised away from lower body 5 as also shown by bi-directional arrows 466.
Sealing mechanism 460 also includes stiffening ring device 450 that includes upright ring section 452 and unitarily-formed lateral ring section 454, wherein device 450 facilitates circumferential support and stiffness. Stiffening ring device 450 extends about the entire inner and outer peripheries defined by inner rim 406 and outer rim 414, respectively. Therefore, during an inward press of rib 462, it compresses against upper body sealing surface 463, thereby forming an upper seal. Moreover, during an inward press of rib 464, it compresses against lower body sealing surface 465, thereby forming a lower seal.
In a manner substantially similar to sealing mechanism 440 (shown in
Moreover, a plurality of dry slices of sandwich bread 48 are located in upper compartment 10 on top of surface 404, and divider 400 is rotated to its seated position over tray 9 to segregate dry bread 48 from wet ingredients 46. In order to accommodate tray 9 and sandwich ingredients 46 within lower compartment 11, an upward pushing force is applied to transverse member 402 of divider 400 to cause divider 400 to assume its raised stable configuration as described above.
In this exemplary alternative embodiment, adjustable divider 400 divides upper compartment 10, and materials stored therein, from lower compartment 11, and the materials stored therein. Also, divider 400 provides a transverse member 402 that is flexible enough to allow overfilling of lower compartment 11, while rigid enough to support materials on either side of transverse member 402. Such flexibility and rigidity is modulated as a function of the intended commercial use of divider 400. Moreover, divider 400 transitions between two stable configurations, this is, a raised position and a lowered position. Rigid components of divider 400 are manufactured such that a flexible membrane is bonded/overmolded to divider 400 by chemical and/or mechanical bonding processes, such that during manufacturing of divider 400 the flexible membrane and rigid components combine to facilitate assembly of the two materials to form to a higher-level product assembly, that is, outer housing 4 (shown in
In addition to functioning as a flexible divider for division of internal compartment, divider 400 also provides seal features between internal compartments of sandwich container 1. Specifically, in addition to functioning as a multi-position divider, divider 400 may further include two flexible materials of differing hardness/stiffness values such that one of the flexible membrane materials has a higher hardness/stiffness value that is optimized for the function of divider 400 as a multi-position compartment divider and the other flexible material has a softer hardness/stiffness value that is optimized for providing a sealing feature, for example, sealing mechanisms 440 and 460, between divider 400 and outer housing 4 of sandwich container 1.
Sandwich container 1100 also includes a hinged divider 1110 that is hingedly coupled to lower compartment 1106 via a hinging mechanism 1112 at one edge of hinged divider 1110 to facilitate an approximately 180° arcual movement in a plane orthogonal to hinging mechanism 1112. Any hinging mechanism 1112 that enables operation of sandwich container 1100 as described herein is used.
In the exemplary embodiment, a plurality of bread slices 1114 are inserted into upper compartment 1104 under corner members 1102 and are at least partially held in place by corner members 1102. Wet ingredients (not shown in
The sandwich containers described herein, and the methods of assembling such sandwich containers, facilitate storage and transport of sandwiches and sandwich materials. Specifically, the sandwich containers are assembled to maintain a freshness and/or a temperature of a completed sandwich, or the ingredients therein. Also, specifically, the sandwich containers are assembled to maintain the bread in a dry state. More specifically, the sandwich containers described herein provide sufficient internal storage space to either separate the bread slices from the wet ingredients and/or a mechanism to keep an entire assembled sandwich and its ingredients cool and fresh. Further, specifically, the sandwich containers are assembled to protect the sandwich and/or sandwich ingredients from crushing during transport and storage. Therefore, the sandwich storage containers described herein have sufficient strength to reduce a potential for damage to the sandwich and to withstand repeated use, including repeated washings. Moreover, the sandwich containers described herein include components that facilitate ease of converting the sandwich containers from storage for sandwich components to storage for ready-to-eat sandwiches with only minor adjustments of the configuration of the sandwich containers. Furthermore, the sandwich containers described herein facilitate ease of cleaning after each use and then are to be reused so as to reduce waste.
Exemplary embodiments of sandwich containers are described above in detail. The methods, apparatus and systems are not limited to the specific embodiments described herein or to the specific illustrated sandwich containers.
While the invention has been described in terms of various specific embodiments, those skilled in the art will recognize that the invention can be practiced with modification within the spirit and scope of the claims.
This application claims the priority of Provisional Patent Application Ser. No. 61/339,812, entitled “DUAL COMPARTMENT SANDWICH CONTAINER WITH A ROTATABLE FLEXIBLE BI-STABLE DIVIDER”, which was filed on Mar. 8, 2010 and which is hereby incorporated by reference in its entirety.
Number | Date | Country | |
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61339812 | Mar 2010 | US |