Dessert and food heating display device

Abstract

This heated display device for desserts and food with a protective cover is a wireless, rechargeable device designed to maintain the temperature of food during display. The product includes a base with a built-in rechargeable battery and a top plate housing a heating element connected to a printed circuit board (PCB). The heating element allows for adjustable temperature settings via a digital display panel, enabling temperature increases or decreases. It also features a timer function adjustable in 30-minute increments for up to 4 hours. The device can be powered by batteries or connected to a power source via a USB-C charging port. Furthermore, it includes a ventilated glass cover to cover and protect the food while maintaining its temperature. This invention is ideal for displaying baked goods and small-plate foods, maintaining a constant temperature during events or displays.

Description

Technical Field

[0001] This invention relates to the field of food display and heating devices. Specifically, this invention relates to a dessert and food heating and display device designed to maintain the temperature of displayed foods (such as desserts or baked goods). The device uses a rechargeable battery for wireless operation, has a heating element within the top plate, and features adjustable temperature control and timer settings, making it suitable for commercial and home use. Background Technology

[0002] This invention belongs to the field of food heating and display devices, focusing on maintaining the optimal serving temperature of desserts and other small-plate foods during the display process. Specifically, this invention relates to a food heating and display device that not only displays food but also maintains its temperature through a built-in heating element. This invention combines practicality and aesthetics, making it ideal for use in professional settings such as bakeries, catering events, and restaurants, as well as for family gatherings or special occasions.

[0003] Maintaining the appropriate temperature during food presentation is crucial for ensuring its quality, freshness, and appeal. Excessive heating or incorrect temperatures can cause food to dry out or spoil, affecting its taste and texture. In professional settings such as buffets, bakeries, and banquets, keeping food at the right temperature significantly enhances customer satisfaction. This invention provides a solution that ensures food is presented aesthetically pleasing while maintaining its temperature for extended periods without constant monitoring. The ability to set and control temperature and time offers convenience, especially in high-volume production scenarios where food needs to remain fresh and warm for several hours. Furthermore, the invention's wireless functionality adds flexibility and mobility, making it suitable for outdoor events or locations with limited power outlets.

[0004] The food heating and display market is experiencing steady growth, driven by the expanding hospitality industry and increasing consumer demand for fresh, high-quality food presentation. As of 2022, the global food heating and display market was valued at approximately US$1.4 billion and is projected to see significant growth in the coming years. It is projected to grow at a CAGR of 5.2% between 2023 and 2028, with a growing demand for portable and aesthetically pleasing food heating solutions. Restaurants, event organizers, and catering service providers are constantly seeking innovative products that enhance the presentation and functionality of food, ensuring it remains visually appealing while maintaining optimal serving temperatures.

[0005] Several innovative food heating solutions currently available on the market, such as induction heating technology, electric boilers, and heated display cases, enhance food preservation and presentation by achieving temperature control and longer heat retention times. For example, induction food heaters heat food quickly but require specialized cookware and typically need to be plugged into a power outlet, limiting their portability. Similarly, electric buffet heaters are popular in banquet halls and hotels, but are generally bulky and focus more on maintaining the temperature of large quantities of food than providing an elegant food display solution. While these products fulfill their intended uses, they do not fully meet the demands for mobility, portability, and aesthetics, which are becoming increasingly important in modern catering and hospitality environments.

[0006] By reviewing relevant technical documents, one can learn about various devices. For example, US Patent 4,757,913A describes a lid device for a food heater. This lid device for a food heater includes a food container. The lid device includes a frame for connecting to the food container, and multiple door components slidably mounted on the frame. These door components are selectively and independently movable relative to the frame and to each other to close the opening and allow for some degree of access to the food container. The lid device also provides a pair of track components for supporting and guiding each door component. The track components are selectively connected and detachable from the frame and door components to enable assembly and disassembly of the frame, track device, and door components. The key components of the lid device, namely the door components, track components, and frame, are essentially made of sheet metal components to facilitate their manufacture.

[0007] U.S. Patent 2,022,0079,379 relates to a food heating system. Its embodiments describe a method comprising heating food in an integral heating plate insert of a food container, generating heat within the food container using the reactance of multiple heat dissipation elements, activating and controlling electrical components including the multiple heat dissipation elements via a control printed circuit board assembly connected to a power button, heating the food at a comfortable and safe suitable temperature by adjusting the heat generated by the multiple heat dissipation elements, activating the electrical components including the multiple heat dissipation elements using at least one rechargeable battery pack with a power button connected to the control printed circuit board assembly, and transmitting food status information to a user and receiving user commands from a user's digital device using a food heating system application, the application including a timer and variable temperature control functions.

[0008] U.S. Patent 4,074,108, "Countertop Heater," describes a luminous display heater for displaying food products and maintaining them at a suitable eating temperature. The heater includes a glass front and sides, a base providing a flat heating surface, and a top from which a radiant heater is suspended for heating the food within the heating chamber. Independent convection airflow paths provide ventilation to the heater's interior and keep the external surface temperature low. This heater is particularly well-suited for countertop mounting. The recessed design of the heater's low-profile base allows for safe mounting on countertops without the risk of scorching or burns.

[0009] U.S. Patent 3,614,923a describes a food heater that includes a vertical cabinet with a heating and storage area inside, and a closed forced air heating system that provides humidity-controlled hot air to the heating and storage area, thereby maintaining the temperature of food in a controlled environment.

[0010] Despite numerous innovations, users still face many challenges when using food heating devices. One major drawback is the reliance on power cords, which limits the portability of such devices and makes them difficult to use in environments where power outlets are not readily available. Furthermore, many food heaters lack precise temperature control, leading to overheating or uneven heating of food, thus affecting the quality of the served food. Larger models often sacrifice aesthetics for functionality, making them unsuitable for high-end events where both taste and appearance are important. Another common problem is the lack of integrated timers, forcing users to constantly monitor the device to prevent overheating or unnecessary energy consumption. These limitations underscore the need for a product that not only solves the food heating problem but also prioritizes portability, precision, and visual appeal.

[0011] The "Dessert and Food Heating Display Device" proposed in this application addresses a series of problems faced by current food heating solutions. This product is a multi-functional, wireless food heater that operates using a rechargeable battery built into its base, offering complete portability without the need for a power cord. The top panel of the display stand (display device) incorporates a built-in heating element, easily controlled via a digital interface, allowing users to adjust the temperature to their needs. The display stand also features a user-friendly timer function, allowing settings in 30-minute increments for up to 4 hours, ensuring food is kept at the desired temperature for the required duration without constant monitoring. The "+" and "-" buttons on the control panel facilitate precise temperature setting, preventing the risk of overcooking or drying out food. Furthermore, the display stand can also be powered via a USB-C charger, providing flexibility for both mobile and stationary applications.

[0012] This product includes a smooth, transparent glass dome with ventilation holes, designed to cover and protect food while maintaining a suitable temperature and preventing moisture buildup. This ensures that food remains fresh and visually appealing throughout the event, making it ideal for upscale parties, catering events, and professional food service venues.

[0013] The "Dessert and Food Heating Display Device" combines portability, precision, and elegant food display capabilities, aiming to fill a key market gap. Existing food heating solutions often lack mobility and precise temperature control, leading to inconsistent results or limited application scenarios. By employing a rechargeable battery and a compact, portable design, this invention allows users to place the heating device anywhere, without the need for a power outlet. This is particularly useful for outdoor activities, mobile catering services, or locations with limited electrical infrastructure.

[0014] Furthermore, the digital temperature control and integrated timer provide users with unprecedented control over the heating process, ensuring food remains at the ideal serving temperature without manual adjustment. The heater's sleek, modern design, combined with its functionality, makes it not only a practical heating solution but also a focal point that enhances the visual appeal of food presentation.

[0015] None of the foregoing inventions or patents, whether used alone or in combination, are considered to describe the claimed invention. Therefore, the inventors of this invention propose to solve and overcome the existing technical difficulties to eliminate the deficiencies of the prior art. Summary of the Invention

[0016] In view of the deficiencies in the prior art, the following overview is provided to aid in understanding certain unique and innovative features of the present invention, but this overview is not a complete description. For a full understanding of all aspects of the invention, a thorough reading is required in conjunction with the entire specification, claims, drawings, and abstract.

[0017] The present invention aims to improve upon the prior art and provide an advanced design and method for a "heated display device for desserts and food".

[0018] This invention aims to provide a wireless rechargeable food heating display stand that does not require a power outlet, offering greater flexibility and portability in various environments. The display stand includes: a base with a built-in rechargeable battery; a printed circuit board (PCB) located within the base; a top plate connected to the PCB, wherein a heating element is embedded in the top plate; and a digital control panel integrated with the base, which has buttons for adjusting the temperature and setting the timer. The food display stand can operate in wireless mode using the rechargeable battery, as well as in plugged-in mode via a USB-C charging port.

[0019] Preferably, the heating element is flush with the surface of the top plate, providing a seamless area for placing food, and the heating element in the top plate is able to maintain a temperature of 160°F to 170°F, and the digital control panel allows users to set the temperature via + and - buttons.

[0020] Preferably, the glass cover has at least three evenly distributed ventilation holes to dissipate heat and prevent condensation from accumulating on the food.

[0021] Preferably, the base plate and top plate should be made of heat-resistant materials to support a variety of foods, including cakes and other baked goods, without deformation or instability.

[0022] Preferably, the timing function includes an automatic shut-off function, that is, the heating element will be turned off when the set timer ends.

[0023] Preferably, the device has a safety over-limit function, that is, the heating element will be shut off when the temperature exceeds a preset safety limit.

[0024] Preferably, the food heating display device further includes a glass cover with ventilation holes for covering the food placed on the top plate to achieve heat circulation and prevent moisture accumulation.

[0025] Another objective of this invention is to keep food at a constant temperature set by the user, preventing the food from overcooking or drying out, while ensuring that the food is kept warm and ready to eat at any time.

[0026] The present invention also aims to provide a device capable of precise temperature control, which is equipped with easy-to-operate digital buttons, allowing users to adjust the heating temperature according to the specific needs of different foods.

[0027] Another objective of this invention is to incorporate a timer function, allowing users to set the heating time in 30-minute increments, up to a maximum of 4 hours, thereby reducing the need for continuous monitoring.

[0028] The purpose of this invention is also to enhance the presentation of food by adopting a stylish and modern design, making food heaters a more attractive focal point in various events, restaurants, and catering services.

[0029] Another objective of this invention is to provide a dual power supply function, allowing users to operate the food heater using a rechargeable battery or by connecting a power source via a USB-C interface, thereby maximizing convenience.

[0030] Another object of the present invention is to introduce a protective glass cover with ventilation holes, which can maintain the temperature of food while preventing moisture buildup, thereby ensuring that the food is fresh and delicious.

[0031] Another objective of this invention is to provide a flat, seamless heating surface to ensure uniform heat distribution throughout the food display area and avoid cold spots and uneven heating.

[0032] Another object of the present invention is to provide an LED indicator light to alert the user when the food heater reaches the set temperature, thereby providing a clear visual indication of whether the food is ready.

[0033] Therefore, the purpose of this application is to provide a new and more advanced multi-functional application that is suitable for various food categories, including desserts, baked goods and small dishes, whether in professional or home environments.

[0034] The purpose of this invention is to design a durable device that can withstand wear and tear caused by repeated use.

[0035] This overview is intended only to summarize some exemplary embodiments in order to provide a basic understanding of certain aspects of the subject matter described herein. Therefore, it should be understood that the above features are merely illustrative and should not be construed as narrowing or limiting the scope or spirit of the subject matter described herein in any way. Other features, aspects, and advantages of the subject matter described herein will become apparent in the following detailed description, drawings, and claims. Attached Figure Description

[0036] In the accompanying drawings, the same reference numerals refer to the same or functionally similar parts in the individual views. These drawings, together with the following detailed description, are incorporated into and form part of this specification and are intended to further illustrate embodiments that cover the concepts of the claimed invention and explain the various principles and advantages of these embodiments.

[0037] Figure 1 An assembly diagram of a dessert and food heating and display device according to a preferred embodiment of the present invention is shown.

[0038] Figure 2 A bottom view of a dessert and food heating display device according to a preferred embodiment of the present invention is shown.

[0039] Figure 3 An exploded top view of a dessert and food heating display device according to a preferred embodiment of the present invention is shown.

[0040] Figure 4 An exploded bottom view of a dessert and food heating display device according to a preferred embodiment of the present invention is shown.

[0041] Figure 5 A working view of a dessert and food heating and display apparatus according to a preferred embodiment of the present invention is shown.

[0042] Figure 6 The heating element of a dessert and food heating display device according to a preferred embodiment of the present invention is shown.

[0043] Figure 7 This invention presents another perspective on the heating element of a dessert and food heating display device according to a preferred embodiment of the present invention.

[0044] Figure 8 A display panel of a dessert and food heating display device according to a preferred embodiment of the present invention is shown.

[0045] Figure 9 Another view shows a dessert and food heating and display apparatus according to a preferred embodiment of the present invention.

[0046] Experienced technicians will understand that some elements in the drawings are drawn intentionally for simplicity and clarity, and are not drawn to scale. For example, the dimensions of some elements in the drawings may be exaggerated relative to other elements to facilitate a better understanding of the embodiments of the invention.

[0047] Where appropriate, the components of the apparatus and methods have been indicated by conventional symbols in the figures. Only those specific details that are essential to understanding the embodiments of the invention are shown so as not to obscure the description with too much detail, which will be obvious to those skilled in the art who have been taught in this specification. Detailed Implementation

[0048] Preferred embodiments have been described in detail herein. However, it should be understood that the invention can be implemented in many forms. Therefore, the specific details disclosed herein should not be construed as limiting, but rather as the basis for the claims and as an exemplary basis for demonstrating to those skilled in the art how the invention can be applied in virtually any system, structure, or manner with appropriate level of detail.

[0049] The terminology used herein is for describing particular embodiments only and is not intended to limit the scope of the invention. In this document, the term "and / or" includes all combinations associated with one or more of the listed items. In this document, the singular forms "a," "an," and "the" are intended to include both the plural and singular forms unless the context clearly indicates otherwise. Furthermore, the terms "comprising" and "including" as used in this specification indicate the presence of a specified feature, step, operation, element, and / or component, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, or groups thereof.

[0050] This invention introduces a dessert and food heating display device designed to maintain the temperature of displayed foods such as cakes, pastries, and other baked goods. The core of this invention lies in its wireless functionality, achieved through a rechargeable battery built into the display device's base. This battery powers the entire device, making it portable and convenient for various occasions, including outdoor events, banquets, and upscale buffets. Unlike traditional food heaters that rely on a continuous power connection, this battery provides extended wireless operation, allowing users the flexibility to move and place the heating device in the desired location.

[0051] According to a preferred embodiment, a heating element is embedded in the top plate of the heating device, which is responsible for generating and maintaining heat. This element is seamlessly integrated with the top plate, ensuring a flat and continuous surface for easy food placement. The heating element is designed to distribute heat evenly across the top plate, avoiding uneven heating or cold spots. This feature is particularly important when displaying fragile foods, as it ensures consistent heat across the entire surface area, thus preserving the food's quality.

[0052] According to a preferred embodiment, temperature control is one of the key features of the invention. Users can adjust the temperature settings via a digital display panel (digital control panel) located on the base. This panel includes "+" and "-" buttons for precise temperature adjustment. This flexibility is particularly important when heating different types of food that may require specific temperature settings. For example, delicate pastries may need to be kept at a lower temperature, while more substantial foods like bread or cookies may require a slightly higher temperature setting. The digital control settings ensure that users can customize the temperature according to the type of food to be displayed, thereby improving its quality and presentation.

[0053] According to a preferred embodiment, in addition to temperature control, the present invention is also equipped with a timer function, through which the user can set the duration of food insulation. The timer can be adjusted in 30-minute increments, and can be set to a maximum of 4 hours. This function is particularly useful in professional environments where food needs to be kept warm for extended periods but continuous monitoring is not possible. When the timer expires, the device automatically shuts off, thereby saving energy and preventing the food from overheating. This automatic function increases convenience and reduces the need for manual intervention during activities.

[0054] According to its preferred embodiment, one of the most significant advantages of the present invention is its dual-mode power supply capability. The device is designed to operate wirelessly via a rechargeable battery, and can also be used in a plugged-in state via a USB-C charging port. This dual capability ensures that the heating device continues to operate even when the battery is low. This provides peace of mind for users in busy restaurants or during extended periods of activity, knowing that the heating device will continue to operate normally without interruption. Furthermore, the USB-C charging port provides a universal and efficient charging method, widely compatible with modern charging systems.

[0055] This invention also includes a glass cover over the top panel, which offers both aesthetic and practical advantages. The glass cover has ventilation holes to promote air circulation and prevent condensation from accumulating on the food surface. This allows the food to maintain its temperature without becoming soggy or losing its original texture due to moisture buildup. The glass cover also provides protection against contaminants while enhancing the food's appearance, making it ideal for formal dining occasions, bakeries, and other food service establishments where visual appeal is paramount.

[0056] According to a preferred embodiment, an additional feature of the invention is the inclusion of an LED indicator light that clearly signals to the user when the heating device reaches the desired temperature. This visual cue helps the user know precisely when the heating device is ready to use, eliminating the need for manual temperature checks. The LED light not only enhances the user experience by reducing guesswork but also contributes to the product's stylish and modern appearance. This visual element adds a touch of sophistication, allowing the device to complement upscale food displays and dining settings.

[0057] According to a preferred embodiment, the heating element is carefully designed to maintain a temperature range within 170°F, which is ideal for keeping food warm and preventing overcooking or drying. This precise temperature range is particularly important for baked goods and delicate desserts that require continuous heat retention to maintain freshness and texture. By ensuring that the heating element never exceeds this range, the device guarantees that food is served at its optimal temperature without affecting its taste or quality. This level of control represents an improvement over conventional heaters that may lack fine-tuning of temperature control.

[0058] According to its preferred embodiment, the display stand portion of the heating device is structurally both robust and aesthetically pleasing. Made of durable and heat-resistant materials, the stand can support a variety of foods, including heavier cakes and pastries. The heating elements are embossed on the surface of the top plate, forming a smooth heating surface that eliminates any bumps or edges, facilitating cleaning and maintenance. The overall design of the heating device strikes a balance between functionality and aesthetics, making it suitable for both casual gatherings and upscale events. Although the invention has been described in its preferred form, it is flexible enough to accommodate changes in size or materials without deviating from its core function of maintaining food temperature during display.

[0059] The provided images provide a clearer understanding of the device's structure. The images show the main components. The protective cover, labeled 101, maintains the food temperature through air circulation. The dessert display case is labeled 102, and the control buttons are also labeled, including 103a (power button) and 103b (buttons for increasing temperature and setting the timer). The digital display is labeled 103c, while 103d represents the button for decreasing temperature and setting the timer. Additionally, 103e is the timer button for quickly setting the timer.

[0060] Figure 2 The external structure of the device is highlighted. The protective cover 101 and the dessert display case housing 102 are shown again in the figure. Additionally, the figure also illustrates the charger input interface, labeled 104, used to connect the device to a power source.

[0061] Figure 3 The entire electronic component and heating element of the device are shown. It features the same protective cover 101 and dessert display case 102. The figure shows control buttons 103a to 103e, including a power button, temperature / timer control button, display screen, and timer button. Additionally, the top plate (labeled 105), heating element wires 106, printed circuit board (PCB) 107, and rechargeable battery 108 are also depicted in the figure.

[0062] Figure 4 The heating and power supply components are highlighted. The protective cover 101, the dessert display case housing 102, the top plate 105, and the heating element wires 106 are shown again. The printed circuit board 107 and the rechargeable battery 108 are also shown in the figure.

[0063] Figure 5 The internal power system is highlighted. The figure includes a protective shield 101, a dessert display case 102, and core electronic components: a printed circuit board 107 and a rechargeable battery 108.

[0064] Figure 6The printed circuit board (labeled 107) was specially displayed and enlarged to more clearly show its structure and connections.

[0065] Figure 7 and Figure 6 Similarly, the printed circuit board 107 is highlighted, but its complex structure and its connection to other internal components of the device are emphasized.

[0066] Figure 8 The control interface of the device is shown. The figure displays a power button 103a, a temperature / timer increase button 103b, a digital display 103c, a temperature / timer decrease button 103d, and a timer button 103e. Additionally, a new control element 103f is introduced, which may correspond to auxiliary or additional functions of the interface.

[0067] Figure 9 The structure of the heating system is shown. This structure includes a protective cover 101, a dessert display case housing 102, and a top plate 105. Heating element wires 106, shown in the figure, are connected below the top plate to provide heat to the food stored inside.

[0068] According to its preferred embodiment, the dessert and food heating and display device is an innovative solution that combines modern heating technology, portability, and aesthetic design to meet the dual needs of professional and home users. Its rechargeable battery, digital control, and thoughtful design make it a multi-functional tool that enhances the display effect while maintaining food temperature, filling a market gap for an elegant and portable food heater that combines functionality and aesthetics.

[0069] While specific embodiments have been shown and described, there are many possible variations in their implementation. More features may be added over time. The platform's specific shape or structure, or its internal architecture, may change to suit its associated systems or devices.

[0070] After a detailed description of the invention, those skilled in the art will understand that modifications can be made without departing from its spirit. Therefore, the scope of the invention should not be limited to the specific embodiments illustrated and described. Rather, the scope of the invention should be determined by the appended claims and their equivalents.

[0071] This abstract is intended to give the reader a quick understanding of the nature of the technical disclosure. It is assumed, in submitting this abstract, that it will not be used to interpret or limit the scope or meaning of the claims. Furthermore, as will be apparent from the foregoing detailed description, various features have been combined in different embodiments for the purpose of simplification. This manner of disclosure should not be construed as indicating that the claimed embodiments require more features than expressly stated in each claim. Rather, as reflected in the following claims, the inventive subject matter does not encompass all features of a single disclosed embodiment. Therefore, the following claims are now incorporated into the detailed description, each existing as a separate, independent claim.

Claims

1. A dessert and food heating and display device, characterized in that, include: Base with built-in rechargeable battery; A printed circuit board (PCB) located within the base; A top plate connected to the PCB, wherein a heating element is embedded in the top plate; A digital control panel integrated with the base, the panel having buttons for adjusting the temperature and setting the timer; The dessert and food heating display device can operate in wireless mode using the rechargeable battery, or in plugged-in mode via the USB-C charging port.

2. The dessert and food heating and display device as described in claim 1, characterized in that, The heating element is flush with the surface of the top plate, providing a seamless area for placing food, and the heating element in the top plate is capable of maintaining a temperature between 160°F and 170°F, wherein the digital control panel allows the user to set the temperature via + and - buttons.

3. The dessert and food heating and display device as described in claim 1, characterized in that, The dessert and food heating display device also includes a glass cover with ventilation holes for covering the food placed on the top plate to achieve heat circulation and prevent moisture accumulation.

4. The dessert and food heating and display device as described in claim 1, characterized in that, The base and the top plate are made of heat-resistant materials and are designed to support a variety of foods, including cakes and other baked goods, without deformation or instability.

5. The dessert and food heating and display device as described in claim 1, characterized in that, The timing function includes an automatic shut-off function, which means that the heating element will be turned off after the set timeout period ends.

6. The dessert and food heating and display device as described in any one of claims 1-5, characterized in that, The dessert and food heating display device has a safety over-control function, that is, the heating element will be turned off when the temperature exceeds the preset safety limit.

7. The dessert and food heating and display device as described in claim 3, characterized in that, The glass cover has at least three evenly distributed ventilation holes to dissipate heat and prevent condensation from accumulating on the food.

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