Dessert Food Warmer Display

Abstract

We offer a versatile cordless food warmer powered by a built-in rechargeable battery. [Solution] The covered dessert / food warmer display is a cordless, rechargeable device designed to keep food warm during display. The product consists of a base with a built-in rechargeable battery, a printed circuit board (PCB) connected to the base, and a top plate with a built-in heating element. The heating element's temperature can be adjusted via a digital display panel, which features both a temperature rise / fall function and a timer function that can be set in 30-minute increments up to a maximum of 4 hours. The device can be powered by USB-C charging or battery operation. Furthermore, the product features a ventilated glass dome that covers and protects food while maintaining its temperature. This invention is ideal for keeping baked goods and small dishes warm at a constant temperature during events and displays.

Description

Technical Field

[0001] The present invention relates to the technical field of food display and warming devices. Specifically, it relates to a dessert hood warmer display that can keep foods such as desserts and baked confectioneries warm during display. This device incorporates a rechargeable battery for cordless operation, arranges heating elements on the top plate, and has adjustable temperature control and timer settings, making it suitable for both commercial and household use.

Background Art

[0002] The present invention belongs to the technical field of food warming and display devices, and particularly relates to a technology that focuses on maintaining the optimal serving temperature during the display of desserts and small dishes. Specifically, the present invention relates to a hood warming display stand that can display food and keep it warm with built-in heating elements. The present invention combines both functionality and aesthetics, and is widely suitable for business applications such as bakeries, catering events, restaurants, etc., as well as for use in family gatherings and special occasions at home.

[0003] Maintaining an appropriate temperature during the display of food is extremely important for maintaining quality, freshness, and appeal. Prolonged overheating or inappropriate temperatures can cause food to dry out or deteriorate, adversely affecting taste and texture. At professional venues such as buffets, bakeries, and catering events, providing food at an appropriate temperature can significantly enhance customer satisfaction. The present invention provides a means to maintain an appropriate temperature over a long period while presenting food attractively, eliminating the need for constant monitoring. The function of setting and controlling temperature and time is particularly convenient when it is necessary to keep cooked food warm and fresh for several hours at a large-scale cooking site. Furthermore, the cordless design of the present invention improves flexibility and mobility, making it convenient for outdoor activities and use in locations with limited power outlets.

[0004] The food warming and display equipment market is experiencing steady growth, driven by the expanding hospitality industry and increasing consumer demand for fresh, high-quality food displays. As of 2022, the global food warming and display equipment market was valued at approximately US$1.4 billion, and further growth is expected in the coming years. A compound annual growth rate (CAGR) of 5.2% is projected from 2023 to 2028, driven by increased demand for portable and aesthetically pleasing food warming solutions. Restaurants, event organizers, and food service operators are constantly seeking innovative products to enhance the display effectiveness and functionality of food, ensuring that food maintains its ideal temperature while simultaneously possessing visual appeal.

[0005] Food warming methods currently available on the market offer innovations such as induction heating technology, electric shearing dishes, and insulated display cases. These products have advanced food serving and display through their temperature control and long-term warming capabilities. For example, induction heating food warmers allow for rapid heating, but they require specialized cooking equipment and are often plugged into power outlets, limiting their portability. Similarly, electric buffet warmers are common in banquet halls and hotels, but they tend to be large and focus on keeping large quantities of food warm, making them insufficient as sophisticated food display methods. While these products serve their intended purposes, they fail to adequately meet mobility, portability, and aesthetic needs, which are becoming increasingly important in modern food service and hospitality environments.

[0006] A prior art review reveals several related devices. For example, U.S. Patent No. 4,757,913A discloses a cover unit for a food warmer. This cover unit is of a type that includes a food container. The cover unit comprises a frame connected to the food container and a number of door members slidably supported on the frame and independently movable from one another, the door members selectively opening and closing the opening and adjusting the amount of entry into the food container. A pair of track members are provided to support and guide each of the door members, and these track members are selectively detachable from the frame and the door members, thereby enabling assembly and disassembly of the frame, the track members and the door members. The main components of the cover unit, such as the door members, the track members and the frame, are basically formed from sheet metal parts to improve the manufacturing efficiency of these components.

[0007] U.S. Patent No. 20220079379 discloses a food heating system, the embodiments of which include the following: heating food in an integrated heating tray insert of a food container; generating heat within the food container using the electrical resistance of multiple heat dissipation elements; activating and controlling an electrical component including the multiple heat dissipation elements using a control printed circuit board assembly connected to a power button; adjusting the temperature of the heat dissipation elements to heat the food to an appropriate and safe temperature; further activating the electrical component including the heat dissipation elements using at least one rechargeable battery pack with a power button connected to the control printed circuit board assembly; transmitting food status information to a user through a food heating system application with timer and variable temperature control functions; and receiving instructions from the user's digital device.

[0008] U.S. Patent No. 4074108 describes a countertop display warmer, an illuminated display warmer for displaying and storing food at a suitable temperature. The illuminated display warmer comprises a glass front and sides, a base with a flat heating surface, and a ceiling, from which a radiant heater is suspended for heating food inside the warming chamber, and the warming chamber is ventilated by a separate convection airflow path to maintain a low external surface temperature. The illuminated display warmer is particularly suitable for countertop installation due to its low-profile base heater design, which allows for installation without the risk of scorching or burning the countertop.

[0009] U.S. Patent No. 3614923A discloses a food warmer comprising a vertical cabinet with a heating and storage compartment and a closed forced-air heating system supplying humidity-controlled warm air. It is designed to keep food warm under controlled conditions.

[0010] Despite existing technologies, significant challenges remain for food warming devices. A major drawback is their reliance on power cords, which limits the mobility of such devices and hinders their use in locations where power outlets are inconvenient. Furthermore, many warmers lack precise temperature control, leading to overheating or uneven heating of food and a decline in the quality of the served dishes. Larger models often sacrifice design for functionality, making them unsuitable for high-end events where the appearance of the food is as important as the taste. Another common problem is the lack of built-in timer functions. Therefore, users must constantly monitor the device to prevent overheating and unnecessary power consumption. These limitations highlight the need for products that not only keep food warm but also combine mobility, precise temperature control, and visual appeal.

[0011] The dessert food warmer display of this invention solves many of the problems associated with existing food warming methods. This product is a versatile cordless food warmer that operates on a rechargeable battery built into the base, achieving complete portability and freeing users from the constraints of power cords. The stand's top plate has a built-in heater that can be easily operated via a digital interface. Users can adjust the temperature as needed. This display stand has a user-friendly timer function that can be set in 30-minute increments up to a maximum of 4 hours. This allows food to be kept at the appropriate temperature for a desired period of time without constant monitoring. Precise temperature setting is possible with the + / - buttons on the control panel, preventing food from overheating or drying out. Furthermore, it can operate while being powered by USB-C charging, providing flexibility for both mobile and stationary use.

[0012] This product includes a transparent glass dome with ventilation holes, designed to maintain optimal temperature, prevent moisture buildup, and cover and protect food. This keeps food fresh and visually appealing throughout the event, making it an ideal solution for high-end parties, food and beverage events, and professional catering environments.

[0013] The dessert food warmer display of this invention addresses a significant gap in the market by integrating portability, precision, and elegant food display into a single product. Existing food warming methods often lack flexibility and fine-grained temperature control, leading to inconsistent results and limited use cases. By combining a rechargeable battery with a compact, portable design, this invention allows users to place the warmer anywhere without needing a power outlet. This is particularly useful for outdoor events, mobile catering, and venues with limited electrical facilities.

[0014] Furthermore, digital temperature control and a built-in timer allow users to precisely control the heating process, keeping food at the ideal serving temperature without the need for manual adjustments. The warmer's sophisticated, modern design, combined with its functionality, makes it not only a practical food warming device but also an attractive central decoration that enhances the visual appeal of food displays.

[0015] Existing inventions and patents, whether viewed individually or in combination, do not disclose the scope of the claims of the present invention. Therefore, the applicant of the present invention proposes to solve and overcome existing technical problems and eliminate the aforementioned shortcomings of the prior art. [Overview of the Initiative] [Problems that the invention aims to solve]

[0016] To address the shortcomings of the prior art and to facilitate understanding of some of the innovative features unique to this invention, the following outline of the invention is provided. This is not intended to be a complete description. To fully understand the various aspects of this invention, it is necessary to refer to the entire specification, claims, drawings, and abstract in conjunction.

[0017] The present invention aims to improve upon the prior art and provide advanced designs and methodologies for dessert food warmer displays. [Means for solving the problem]

[0018] The present invention aims to provide a cordless, rechargeable heated food display stand that does not require a power outlet. This provides excellent flexibility and portability in various environments. The rechargeable heated food display stand includes a base with a built-in rechargeable battery, a printed circuit board (PCB) housed within the base, a top plate connected to the PCB and including a built-in heating element, and a digital control panel integrated with the base and equipped with buttons for temperature adjustment and timer setting. The rechargeable heated food display stand can operate in both a cordless mode using the rechargeable battery and a wired mode via a USB-C charging port.

[0019] Preferably, the heating element is positioned flush with the surface of the top plate, forming a seamless area for food placement. The heating element within the top plate is capable of maintaining a temperature range of 160°F to 170°F, and the digital control panel provides the user with a temperature setting function via + / - buttons.

[0020] Preferably, the glass dome has at least three evenly spaced vents to allow hot air to escape while preventing condensation on the food.

[0021] Preferably, the base and the top plate are made of a heat-resistant material that does not deform or become unstable even when a variety of foods, including cakes and other baked goods, are placed on them.

[0022] Preferably, the timer function includes a shut-off function that automatically stops the heating element when a set time has elapsed.

[0023] Preferably, the heated food display stand includes a safety override function that automatically shuts off the heating element if the temperature exceeds a preset safety limit.

[0024] Preferably, the heated food display stand further includes a glass dome with ventilation holes designed to cover the food on the top plate, thereby promoting heat circulation while preventing moisture accumulation.

[0025] A further object of the present invention is to prevent overheating and drying while always maintaining a warm and available state by consistently keeping the food at the user-set temperature.

[0026] Also, a further object of the present invention is to provide precise temperature control with intuitive digital buttons, enabling the user to adjust the heating temperature according to the characteristics of various foods.

[0027] Also, a further object of the present invention is to have a built-in timer function that allows the user to set the holding time up to a maximum of 4 hours in 30-minute increments, reducing the need for constant monitoring.

[0028] Also, a further object of the present invention is to enhance the food display effect with a sophisticated modern design, enabling this hood warmer to function as an attractive central decoration in events, restaurants, and catering services.

[0029] Furthermore, a further object of the present invention is to provide a dual power function that maximizes convenience by enabling the user to operate this hood warmer using a rechargeable battery or while being powered by a USB-C connection.

[0030] Also, a further object of the present invention is to include a protective glass dome with ventilation holes that prevents moisture accumulation while keeping the food at an appropriate temperature, maintaining the food in a fresh and appetizing state.

[0031] Furthermore, a further object of the present invention is to provide a flush and seamless heating surface that ensures uniform heat distribution across the entire food display area, preventing low-temperature areas and uneven heating.

[0032] Another object of the present invention is to provide the food warmer with an LED indicator light that informs the user when it has reached a desired temperature and provides a clear visual signal that it is ready.

[0033] Therefore, the objective of the present invention is to provide novel and improved versatility that can handle a wide variety of food types, such as desserts, baked goods, and small dishes, in both professional and home environments.

[0034] Furthermore, an objective of the present invention is to create a highly durable, long-life device that can withstand wear and tear from repeated use.

[0035] The summary of the present invention is provided solely for the purpose of summarizing aspects of several embodiments and to provide a basic understanding of some aspects of the subject matter described herein. Therefore, it should be understood that the features described above are merely illustrative and should not be construed as limiting the scope or spirit of the subject matter described herein in any way. Further features, embodiments, and advantages relating to the subject matter described herein will become apparent from the following detailed description, drawings, and claims.

[0036] The attached drawings, which show identical or functionally similar elements across different views using the same reference numerals, constitute part of the specification together with the following detailed description. These drawings further illustrate conceptual embodiments including the claimed invention and serve to illustrate the various principles and advantages of such embodiments. [Brief explanation of the drawing]

[0037] [Figure 1] An assembly diagram of a dessert food warmer display according to a preferred embodiment of the present invention is shown. [Figure 2] A bottom view of the dessert food warmer display cover according to a preferred embodiment of the present invention is shown. [Figure 3]An exploded top view of the dessert food warmer display cover according to a preferred embodiment of the present invention is shown. [Figure 4] This shows an exploded bottom view of the dessert food warmer display cover according to a preferred embodiment of the present invention. [Figure 5] This diagram shows the operation state of the dessert food warmer display cover according to a preferred embodiment of the present invention. [Figure 6] A heating element of the dessert food warmer display cover according to a preferred embodiment of the present invention is shown. [Figure 7] Another viewpoint view of the heating panel of the dessert food warmer display cover according to a preferred embodiment of the present invention is shown. [Figure 8] A display panel for the dessert food warmer display cover according to a preferred embodiment of the present invention is shown. [Figure 9] Another viewpoint view of the dessert food warmer display cover according to a preferred embodiment of the present invention is shown. [Modes for carrying out the invention]

[0038] Those skilled in the art will understand that the elements in the drawings are shown for the sake of brevity and clarity and are not necessarily drawn to actual scale. For example, the dimensions of some elements in the drawings may be exaggerated relative to others in order to aid in understanding embodiments of the present invention.

[0039] The components of this device and method are represented in the drawings by commonly used reference numerals as appropriate, and details that would be easily understood by those skilled in the art by referring to this specification are omitted, with only specific details that are important for understanding embodiments of the present invention being shown.

[0040] This specification provides a detailed description of preferred embodiments. However, it should be understood that the present invention can be implemented in various forms. Accordingly, the specific details disclosed herein should not be construed as limiting, but rather as the basis for the claims and as a representative basis for those skilled in the art to utilize the invention in substantially any appropriately detailed system, structure, or method.

[0041] The terms used herein are for the purpose of describing specific embodiments only and are not intended to limit the invention. In this specification, the term “and / or” includes any combination of one or more of the relevant enumerated items. In this specification, “one,” “one,” or “the foregoing” when used in the singular includes the plural unless the context explicitly indicates otherwise. Furthermore, it should be understood that the terms “encompassing” and / or “containing,” when used herein, identify the presence of the described features, processes, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, processes, operations, elements, components, and / or groups thereof.

[0042] This invention provides a dessert food warmer display, specifically designed to keep food items such as cakes, pastries, and other baked goods warm during display. At the heart of this invention lies the cordless functionality achieved by a rechargeable battery built into the stand's base. This rechargeable battery powers the entire device, providing portability and convenience for use in a variety of environments, including outdoor events, catering parties, and high-end buffets. Unlike conventional food warmers that rely on continuous power connections, the rechargeable battery of this invention enables extended cordless operation, providing the flexibility for users to freely move and position the warmer as needed.

[0043] In a preferred embodiment, the top plate of the warmer is equipped with a built-in heating element for generating and maintaining heat. This heating element is seamlessly integrated into the top plate, and the surface remains smooth and free of irregularities, allowing for easy placement of food. The heating element is designed to distribute heat evenly across the entire top plate, preventing temperature variations and low-temperature areas. This feature is particularly important when displaying delicate foods, as it provides consistent warmth across the entire surface to preserve the quality of the food.

[0044] In a preferred embodiment of the present invention, temperature control is a key feature. The user can adjust the temperature setting using a digital display panel located at the base of the stand, which is equipped with + / - buttons for precise temperature adjustment. This flexibility is critically important in accommodating various types of food that require specific heating conditions. For example, delicate pastries may require a low temperature setting, while firmer foods such as bread and cookies may be better suited to a slightly higher temperature setting. This digital control allows the user to adjust the temperature according to the type of food being displayed, thereby improving both the quality of the food and the display effect.

[0045] In a preferred embodiment of the present invention, in addition to a temperature control function, the invention also includes a timer function that allows the user to set the food warming time. The timer can be adjusted in 30-minute increments and can be set for up to 4 hours. This function is particularly useful in commercial environments where it is necessary to keep food warm for extended periods, but constant monitoring is difficult. After the timer expires, the device automatically powers off, saving energy and preventing overheating of the food. This automatic function reduces the need for manual operation during events and improves convenience.

[0046] In a preferred embodiment of the present invention, one of the most important advantages of the present invention is the dual power mode. The device can operate cordlessly using a rechargeable battery, while also being powered via the USB-C charging port. This dual functionality allows the warmer to continue operating even when the battery level is low. For users in busy catering environments or long-duration events, this feature provides peace of mind knowing that the warmer will continue to operate without interruption. Furthermore, the USB-C charging port provides a versatile and efficient charging method and offers broad compatibility with modern charging systems.

[0047] This invention further incorporates a glass dome covering the top plate, providing both aesthetic appeal and functionality. The glass dome's ventilated design ensures proper air circulation, preventing condensation on the food surface. This allows food to retain its warmth while avoiding stickiness and deterioration of texture due to moisture. The glass dome not only protects food from external contaminants but also enhances its visual appeal, making it ideal for use in environments where aesthetics are paramount, such as formal dining events, bakeries, and catering.

[0048] In a preferred embodiment, a further feature of the present invention is the inclusion of an LED indicator light. This LED indicator light provides a clear visual signal to the user when the warmer reaches the set temperature. This visual signal allows the user to instantly know that the warmer is ready for use without having to manually check the temperature. This LED indicator light not only improves the user experience by eliminating the need for guesswork, but also contributes to the product's sophisticated and modern design. The visual element adds a touch of luxury, making the device meet the standards for high-end food displays and catering exhibits.

[0049] In a preferred embodiment, the heating element is precisely designed to maintain a temperature range of up to 170°F. This temperature range is ideal for keeping food warm without the risk of overheating or drying. This precise temperature range is important for foods that require a constant temperature to maintain freshness and texture, such as baked goods and delicate desserts. By designing the heating element not to exceed this temperature range, food can be kept at the optimal serving temperature without compromising taste or quality. This level of temperature control represents an improvement over conventional food warmers that lack fine temperature control.

[0050] In a preferred embodiment, the display stand of the warmer has a structure that combines robustness and aesthetic appeal. Constructed from a durable, heat-resistant material, the stand can reliably support a variety of foods, including heavy cakes and pastries. The heating element is embedded in the surface of the top plate, forming a flat, smooth heating surface, making cleaning and maintenance easy. The overall design of this warmer balances functionality and elegance, making it suitable for a wide range of occasions, from casual gatherings to high-end events. Although the present invention has been described in a preferred embodiment, it is versatile and can be modified, such as by changing the size or material, without compromising its core function of keeping food warm during display.

[0051] The configuration of this device can be further understood from the provided drawings. Figure 1 shows the main components of the device, including a protective cover 101 to help circulate air for keeping food warm, a dessert stand housing 102, and control buttons including 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 for quick access to timer settings. The protective cover 101 also functions as a top plate.

[0052] Figure 2 focuses on the external structure of the device. In addition to the protective cover 101 and the dessert stand housing 102, Figure 2 shows the charging input terminal 104 which is responsible for connecting to the power supply.

[0053] Figure 3 clearly shows the complete configuration of the device's electronic components and heating elements. In addition to the protective cover 101 and dessert stand housing 102, Figure 3 shows control buttons 103a-103e including a power button, temperature / timer adjustment buttons, a digital display, and a timer button, a top plate 105, heating element wires 106, a printed circuit board (PCB) 107, and a rechargeable battery 108.

[0054] Figure 4 highlights the heating and power supply components. In addition to the protective cover 101, dessert stand housing 102, top plate 105, and heating element wires 106, Figure 4 also shows the printed circuit board 107 and rechargeable battery 108.

[0055] Figure 5 focuses on the internal power supply system. In addition to the protective cover 101 and the dessert stand housing 102, Figure 5 includes the central electronic components: the printed circuit board 107 and the rechargeable battery 108.

[0056] Figure 6 shows a magnified view of the printed circuit board 107, illustrating its structure and connections in detail.

[0057] Figure 7, like Figure 6, highlights the printed circuit board 107, but with an additional focus on the complex connection design with other internal components of the device.

[0058] Figure 8 highlights the device's control interface. In addition to the power button 103a, temperature / timer increase button 103b, digital display 103c, temperature / timer decrease button 103d, and timer button 103e, Figure 8 shows a new control element 103f that may correspond to secondary or additional functions of the interface.

[0059] Figure 9 shows the structure of the heating system. In addition to the protective cover 101, dessert stand housing 102, and top plate 105, Figure 9 shows heating element wires 106 connected to the bottom of the top plate for supplying heat to the food inside.

[0060] A dessert food warmer display according to a preferred embodiment of the present invention is an innovative solution that integrates modern heating technology, portability, and aesthetic design, meeting the needs of both professional and home users. With its rechargeable battery, digital control, and meticulous design features, it functions as a multi-purpose tool that maintains food temperature while enhancing display effectiveness, filling a market gap for elegant, portable food warmers that combine functionality and design.

[0061] While specific embodiments are shown and described, numerous modifications are possible. Additional features may be adopted over time. The specific shape or configuration of the platform, or its internal configuration, may be modified to suit the system or equipment in which it is used.

[0062] Although the present invention has been described in detail, those skilled in the art will understand that modifications can be made without departing from the spirit of the invention. Therefore, the scope of the invention is not intended to be limited to the specific embodiments shown and described. Rather, the scope of the invention is intended to be defined by the appended claims and their equivalents.

[0063] This summary of the disclosure is provided to enable readers to quickly grasp the content of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. Furthermore, as can be seen in the preceding detailed description, various features have been grouped into various embodiments for the purpose of streamlining the disclosure. This method of disclosure should not be interpreted as reflecting an intention that the claimed embodiments require features beyond those explicitly stated in each claim. Rather, as reflected in the following claims, the subject matter of the invention lies in fewer features than all the features of a single disclosed embodiment combined. Accordingly, the following claims are incorporated herein into the detailed description, with each claim standing independently as subject matter claimed independently.

Claims

1. A heated food display stand, A base with a built-in rechargeable battery, A printed circuit board (PCB) housed within the base, A top plate connected to the PCB, which has a built-in heating element, A digital control panel integrated into the base, which includes buttons for temperature adjustment and timer setting, The glass dome covering the top plate and Equipped with, The heated food display stand is characterized in that it can operate in both a cordless mode using the rechargeable battery and a wired mode via a USB-C charging port.

2. The heated food display stand according to claim 1, characterized in that the heating element is arranged in the same plane as the surface of the top plate, forming a seamless area for food placement, the heating element within the top plate is capable of maintaining a temperature range of 160°F to 170°F, and the digital control panel provides the user with a temperature setting function using + / - buttons.

3. The heated food display stand according to claim 1, characterized in that the glass dome has at least three evenly spaced ventilation holes to prevent condensation on food while allowing hot air to escape.

4. The heated food display stand according to claim 1, characterized in that the base and the top plate are made of a heat-resistant material that does not deform or become unstable even when various foods, including cakes and other baked goods, are placed on it.

5. The heated food display stand according to claim 1, characterized in that the timer setting includes a shut-off function that automatically stops the heating element when a set time has elapsed.

6. The heated food display stand according to claim 1, characterized in that it includes a safety override function that automatically stops the heating element when the temperature exceeds a preset safety limit.

7. A heated food display stand according to any one of claims 1 to 6, further comprising a ventilated glass dome designed to cover food placed on the top plate in order to promote heat circulation and prevent moisture accumulation.

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