Abstract
The present invention introduces an Insulated Stainless-Steel Lunchbox designed to revolutionize the way meals are stored and transported for school-aged children and environmentally conscious adults. This lunchbox combines advanced thermal insulation technology with eco-friendly materials and user-friendly features. The lunchbox features a double-layered construction of food-grade stainless steel, housing Vacuum Insulated Panels (VIPs) or similar insulating materials, that ensure exceptional temperature control, maintaining the desired temperature of food items for extended periods. Available in medium and large sizes, it caters to the diverse needs of users. The lid of the lunchbox, also constructed from stainless steel with integrated VIPs, boasts a recessed area for customizable artwork and a leak-proof sealing mechanism. A secure handle and locking mechanism enhance convenience and reliability, making it an ideal choice for daily use. The interior of the lunchbox is intelligently designed with customizable compartments, accommodating various food items and maintaining organization. Sealable lids and robust materials ensure the safety and freshness of food items. This eco-friendly lunchbox eliminates the need for disposable plastic containers, aligning with sustainability principles and reducing environmental impact. Its durable construction, retro aesthetic, and focus on food safety make it an appealing choice for users of all ages, promoting a responsible and stylish approach to meal storage and transport.
Claims
1. A lunchbox comprising a base constructed from food-grade stainless steel and having a double-layered design with vacuum insulated panels, or a similar insulating material, sandwiched between the layers, with said base being available in medium and large sizes.
2. The lunchbox according to claim 1, wherein said vacuum insulated panels, or a similar insulating material, are separately manufactured and securely adhered to the inner surface of one of the stainless steel layers, effectively insulating the contents within the base.
3. The lunchbox according to claim 1, further comprising a lid constructed from food-grade stainless steel with a double-layered design incorporating vacuum insulated panels, or a similar insulating material, sandwiched between the layers, said lid featuring a recessed area in its central part designed to hold customizable artwork.
4. The lunchbox according to claim 1, wherein the lid further comprises a protrusion or channel on its underside, facilitating leak-proof sealing to the bottom of the lunchbox when closed.
5. The lunchbox according to claim 1, further comprising a handle securely attached to the top of the lid, facilitating ease of transport.
6. The lunchbox according to claim 1, further comprising a locking mechanism on the lid, creating an airtight seal when engaged with the base, preventing temperature fluctuations and spills.
7. The lunchbox according to claim 1, wherein the base further comprises a recessed groove at its top edge, enabling a secure and airtight sealing mechanism when engaged with the lid.
8. The lunchbox according to claim 1, wherein the base includes a ledge or lip to support the interior compartments, thereby preventing shifting or tilting of food items during transit.
9. The lunchbox according to claim 1, comprising a set of interior compartments made from food-safe materials, that may include stainless steel, plastic, or silicone, which can be customized in arrangement to accommodate various food items, utensils, and condiments.
10. The lunchbox according to claim 1, further comprising sealable lids or covers for select interior compartments, ensuring the secure storage of liquid or moist foods and temperature control within compartments.
Description
BRIEF DESCRIPTION OF THE ACCOMPANYING DRAWINGS
[0020] The aforesaid as well as other objects and advantages of the invention will appear hereinafter from the following description taken in connection with the accompanying drawings in which:
[0021] FIG. 1 illustrates an exemplary perspective view embodiment of the insulated stainless steel lunchbox;
[0022] FIG. 2 illustrates an exemplary front view embodiment of the insulated stainless steel lunchbox;
[0023] FIG. 3 illustrates top view embodiment of the insulated stainless steel lunchbox;
[0024] FIG. 4 illustrates an exemplary view embodiment of the inner view of the insulated stainless steel lunchbox showing compartments;
[0025] FIG. 5 illustrates side view of the bottom part of the insulated stainless steel lunchbox;
[0026] FIG. 6 illustrates an exemplary embodiment illustrating various sizes of insulated stainless steel lunchbox;
[0027] FIG. 7 illustrates an exemplary embodiment illustrating various views of the bottom part of insulated stainless steel lunchbox; and
[0028] FIG. 8 illustrates an exemplary embodiment illustrating various views of the lid or top part of insulated stainless steel lunchbox;
DETAILED DESCRIPTION OF THE INVENTION
[0029] Additional features and advantages of the invention will be outlined in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention. These and other features of the present invention will become more fully apparent from the following description or may be learned by the practice of the invention as set forth hereinafter.
[0030] With reference from FIG. 1 to FIG. 3 thereof, embodiment 100, 200 and 300 of the insulated stainless steel lunchbox are disclosed wherein the lunchbox is designed with a strong emphasis on environmental consciousness and practicality, catering to individuals who lead an active lifestyle and are committed to reducing their carbon footprint. The primary material used in this embodiment is a specially sourced, sustainably produced stainless steel (SS304 or equivalent) which ensures the lunchbox's safety for food storage but also aligns with the values of eco-conscious consumers. The Vacuum Insulated Panel (VIPs) integrated into the lunchbox's structure are made from recyclable materials, reinforcing its eco-friendliness. The top of the lunchbox features artwork inspired by nature, such as forests, oceans, or wildlife. This design choice serves as a reminder of the importance of environmental conservation. The lunchbox boasts an earth-toned exterior finish, further highlighting its eco-friendly identity and harmonizing with its natural artwork. Instead of using adhesives or stickers for branding, the logo is embossed directly into the stainless steel, reducing the need for additional materials. The lunchbox is composed of two main components: the base and the lid, which are either separately molded and fused or manufactured as a single unit. The lid features a recessed groove to support an effective sealing mechanism. For insulation Vacuum Insulated Panels (VIPs) are integrated into the lunchbox's design. These VIPs are strategically placed within the lunchbox's structure. They line the base, sides, and interior of the lid, as well as the base surface and inner lid surface. When the lunchbox is closed, the VIPs create a thermal barrier that prevents the transfer of heat between the interior and exterior of the lunchbox. The VIPs act as a barrier against external temperature fluctuations. In hot weather, they prevent heat from entering the lunchbox, ensuring that the contents remain cool. Conversely, in cold conditions, they help retain warmth, keeping hot meals at an optimal temperature. Compared to traditional insulation materials like foam or plastic, VIPs offer superior insulation. They maintain the desired temperature for a longer period, which is especially crucial for keeping food safe and appetizing, whether it's for school lunches or workday meals. The recessed groove in the lid, combined with silicone beading, establishes an airtight seal when the lunchbox is closed. This sealing mechanism is essential for temperature maintenance and ensures that the contents remain at the desired temperature throughout the day. The primary novelty of this embodiment lies in its use of Vacuum Insulated Panels (VIPs) within a stainless-steel lunchbox. This design significantly enhances insulation, surpassing traditional lunch storage methods and maintaining food safety. By addressing food safety concerns through superior insulation and eliminating the need for disposable plastic containers, this embodiment aligns with the dual objectives of food safety and environmental sustainability. The stainless-steel construction ensures durability, resisting wear and tear. Additionally, the incorporation of customizable artwork and a retro design adds aesthetic appeal, making this lunchbox appealing to a wide range of users.
[0031] The insulated stainless steel lunchbox is equipped with a durable, ergonomically designed handle 102. This handle 102 is securely attached to the top of the lunchbox allowing for comfortable carrying and transport. The handle, 102, is thoughtfully designed to ensure a comfortable grip, making it easy for users, including school-aged children and adults, to carry their lunchboxes without straining their hands or fingers. In some embodiments, the handle, 102, may be made from the same high-quality stainless steel as the rest of the lunchbox, ensuring durability and a cohesive aesthetic. It is firmly attached to the lunchbox's lid for stability and longevity. The Insulated Stainless-Steel Lunchbox features a robust and reliable locking mechanism 104 that ensures that the lunchbox remains securely closed during transport, preventing accidental spills or temperature loss. The locking mechanism 104 consists of a clasp or latch, often made from stainless steel or a similarly durable material strategically placed on the front or side of the lunchbox, within easy reach. To close the lunchbox securely, users simply engage the clasp or latch creating an airtight seal, similar to the primary sealing mechanism, ensuring that the interior temperature remains stable. It minimizes the risk of accidental spills or the lunchbox unexpectedly opening during transit.
[0032] With reference from FIG. 4 to FIG. 6 thereof, embodiment 400, 500, and 600 of the compartments of insulated stainless steel lunchbox is disclosed revealing a well-organized layout, optimizing space for food storage while maintaining temperature control. It consists of two primary compartments, the main compartment is spacious and capable of holding a variety of food items, including sandwiches, fruits, and containers of various sizes. This area is where the primary temperature control is maintained with the help of vacuum insulated panels (VIPs). Located beneath the main compartment, the secondary compartment, is designed to hold smaller items such as utensils, napkins, or condiment packets. This compartment is thoughtfully divided with removable dividers, allowing users to customize the space as needed. The interior compartments of the Insulated Stainless-Steel Lunchbox are meticulously designed to accommodate a variety of food items while maintaining organization and temperature control. The lunchbox is available in different size variations, offering medium and large options for the bottom part allowing users to choose the lunchbox that best suits their needs, whether for a child's lunch or an adult's meal. The medium-sized lunchbox provides a compact yet spacious interior for school-aged children, while the large-sized lunchbox offers more storage capacity for adults or individuals with larger appetites. The interior of the lunchbox is arranged with compartments of varying sizes and arrangements to accommodate different types of food items. In an alternative embodiment of the present invention, users can customize the arrangement of compartments based on their specific needs. Removable dividers allow for flexibility in organizing food items. For example, a larger compartment may be used for sandwiches, while smaller sections can hold snacks, fruits, or condiments. The compartments are strategically designed to hold specific types of food items securely. For example, a dedicated section may be included for utensils, ensuring they don't come into contact with food. The interior compartments may be made from various materials to suit different food items and facilitate easy cleaning. Some compartments may be constructed from stainless steel, ensuring food-grade safety and durability. Stainless steel compartments are ideal for holding items that need to be kept cool or warm. Other compartments, particularly those used for items like fruit slices or moist snacks, may be made from food-safe plastic or silicone. These materials are easy to clean and prevent flavor transfer. Some compartments within the lunchbox may be designed with sealable lids or covers. These lids provide an additional layer of protection against spills and help maintain the freshness of certain food items. Compartments with sealable lids ensure that liquids like soups or yogurt remain securely sealed within the compartment, preventing spills and leaks. These lids also contribute to temperature control by preventing temperature exchange between compartments, ensuring that hot foods stay hot and cold foods stay cold. A ledge or lip is included in the bottom part of the lunchbox to support the interior compartments, including the stainless steel food tray. The ledge or lip ensures that the compartments and trays remain securely in place, preventing shifting or tilting of food items during transit. It also facilitates organization within the lunchbox, helping users keep their meals neatly arranged and separated.
[0033] With reference to the FIG. 7 thereof, an exemplary embodiment 700 of the bottom part of the insulated stainless-steel lunchbox is illustrated, that is carefully designed to maximize insulation, durability, and user friendliness. The bottom part of the lunch box consists of two stainless steel layers forming the foundation of the lunchbox, providing structural integrity, durability, and the base for insulation. The stainless steel used is of food-grade quality (typically SS304 or equivalent) to ensure safety and hygiene in food storage. The use of two layers enhances the lunchbox's strength and thermal resistance, contributing to its long lifespan. Sandwiched between the two stainless steel layers is a Vacuum Insulated Panel (VIP) 704. The VIP 704 serves as an insulating barrier, minimizing the transfer of heat between the interior and exterior of the lunchbox. The VIP 704 is adhesively attached to inner surface of one of the stainless steel layers ensuring it remains securely in place. The base and sides of the lunchbox are seamlessly joined by welding, chemical adhesion, or other suitable methods to form a sturdy and watertight connection. Welding the base to the sides creates a robust bond that is both durable and hermetic ensuring that there are no gaps through which heat or moisture can penetrate. Alternatively, chemical adhesion methods may be used, employing food-safe adhesives to create a secure and moisture-resistant bond between the base and sides. At the top of the lunchbox base, a recess or groove 702 is pressed into the stainless steel to support the sealing mechanism. This groove is integral to maintaining an airtight seal when the lunchbox is closed. The recess or groove provides a designated space for the sealing mechanism, such as silicone beading, to fit snugly ensuring that when the lunchbox is closed, a secure seal is established, preventing temperature fluctuations and leaks. A ledge or lip is incorporated into the bottom part of the lunchbox to support the interior compartments, specifically the stainless steel food tray. The ledge or lip acts as structural support for the food tray, preventing it from shifting or tilting when the lunchbox is in transit. It ensures that the interior compartments remain well-organized, with the food tray securely in place. This is particularly important for keeping different food items separated and preventing them from coming into contact during transport.
[0034] With reference to the FIG. 8 thereof, an exemplary embodiment 800 of the lid or top part of the insulated stainless-steel lunchbox is illustrated wherein the lid/top consists of two stainless steel layers, just like the base providing structural integrity, insulation, and a base for the lid's design features. Within the lid/top, a Vacuum Insulated Panel (VIP) 806 is sandwiched between the two stainless steel layers acting as a highly efficient insulating material. The VIP serves as a thermal barrier, minimizing heat transfer between the interior and exterior of the lunchbox. The VIP 806 is adhesively attached to the inner surface of one of the stainless steel layers within the lid/top. This ensures the VIP 806 remains securely in place. In the central part of the lid/top, a recessed is incorporated to hold artwork as a decorative feature. This area allows for customization and personalization of the lunchbox's exterior. The recessed area 802 is designed to perfectly accommodate artwork, which can be attached using various methods, such as magnets, vinyl or woodcut stickers, or other viable options. This feature adds a personal touch to the lunchbox's design. The recessed area 802 protects the artwork from external elements and physical damage while maintaining a flush and smooth surface for the rest of the lid/top. On the underside of the lid/top, a protrusion or channel 804 is designed to facilitate leak-proof sealing to the bottom of the lunchbox ensuring that when the lunchbox is closed, it creates an airtight and watertight seal, preventing spills and temperature fluctuations. The protrusion or channel houses a sealing feature, such as a silicon bead or gasket, which is in direct contact with the top edge of the base of the lunchbox. When the lunchbox is closed, the sealing feature engages with the recessed groove on the top of the lunchbox base. This creates an airtight and leak-proof seal, ensuring that the interior temperature remains stable and preventing any liquid or food from leaking out.
[0035] The Insulated Stainless-Steel Lunchbox offers a range of advantages that make it a highly desirable lunch storage solution for school-aged children and environmentally conscious adults. Here's a detailed breakdown of its key advantages: [0036] Superior Insulation: The integration of Vacuum Insulated Panels (VIPs) within the lunchbox ensures outstanding thermal insulation. It effectively maintains the desired temperature of packed meals, keeping food either hot or cold for extended periods. [0037] Food Safety: The lunchbox addresses food safety concerns by preventing temperature fluctuations that could lead to spoilage or bacterial growth. This feature is particularly crucial for school lunches and workday meals. [0038] Stainless Steel Construction: The use of high-quality stainless steel for both the base and lid ensures durability. Stainless steel is resistant to dents, scratches, and corrosion, making the lunchbox a long-lasting investment. [0039] Plastic-Free: In an era of environmental consciousness, the absence of plastic components contributes to the lunchbox's longevity, as it is less prone to wear and tear compared to plastic alternatives. [0040] Reduction of Plastic Waste: By eliminating the need for disposable plastic containers, the lunchbox aligns with eco-friendly principles and reduces personal environmental impact. It encourages a shift away from single-use plastics. [0041] Sustainable Materials: The use of stainless steel, which is recyclable, further enhances the eco-friendliness of the lunchbox. Stainless steel is known for its recyclability and minimal environmental impact. [0042] Artwork Options: The lunchbox's customizable artwork feature allows users, especially children, to express their individuality and personal preferences by decorating the top of the lunchbox with magnets, stickers, or other attachments. [0043] Retro Aesthetic: The lunchbox's retro rounded-square design adds a touch of nostalgia and style, appealing to users of all ages. [0044] Handle and Locking Mechanism: The addition of a handle and a secure locking mechanism enhances the lunchbox's usability. The handle makes it easy to transport, while the locking mechanism prevents accidental spills and ensures food remains secure during transit. [0045] Interior Organization: The interior compartments, with various sizes and customizable arrangements, provide convenience and organization for packing a variety of meal components. They prevent food items from mixing or shifting during transport. [0046] Compact Design: Despite its robust insulation, the lunchbox maintains a sleek and space-efficient design. It maximizes interior storage space while minimizing bulk, making it easy to carry and store. [0047] Food-Grade Materials: The use of food-grade stainless steel ensures that the lunchbox is safe for storing and transporting food. It doesn't leach harmful chemicals or flavors into the contents. [0048] Easy to Clean: Stainless steel and certain compartment materials, like plastic or silicone, are easy to clean and maintain hygiene, ensuring the lunchbox is suitable for daily use.
[0049] While the exemplary embodiments of the present invention are described and illustrated herein, it will be appreciated that they are merely illustrative. It will be understood by those skilled in the art that various modifications in form and detail may be made therein without departing from or offending the spirit and scope of the invention as defined by the appended claims. Additionally, the invention illustratively disclosed herein suitably may be practiced in the absence of any element which is not specifically disclosed hereinand in particular, embodiment specifically contemplated, is intended to be practiced in the absence of any element which is not specifically disclosed herein.
