Thermal cup with a temperature-maintaining mechanism for hot beverages
The thermal cup with an internal structure and spiral duct redistributes vapor through a nozzle, addressing the need for prolonged temperature maintenance in thermal mugs by enhancing insulation and user interaction.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- BELTRÁN RAMÍREZ JESÚS RAÚL
- Filing Date
- 2025-11-14
- Publication Date
- 2026-05-21
AI Technical Summary
Existing thermal mugs require user intervention to maintain temperature, such as removing interlayers, which can be risky and complex, and do not effectively preserve liquid temperature for prolonged periods without manipulation.
A thermal cup with an internal structure and spiral duct configuration that redistributes vapor using a nozzle, allowing users to blow air to maintain liquid temperature homogeneously without removing components, enhancing thermal insulation and vapor distribution.
The solution ensures the liquid remains hot for longer periods at a consistent temperature, providing improved thermal insulation and user interaction without risking burns or complex manipulations.
Smart Images
Figure MX2025050097_21052026_PF_FP_ABST
Abstract
Description
[0001] Thermal mug with temperature retention mechanism for hot drinks
[0002] TECHNICAL FIELD OF THE INVENTION
[0003] The present invention relates to the technical field of thermodynamics, mechanical engineering, industrial design and more specifically to thermal containers since it provides a thermal cup with a temperature preservation mechanism for hot drinks.
[0004] BACKGROUND OF THE INVENTION
[0005] The history of thermal mugs begins with the human need to maintain the temperature of liquids in adverse conditions. Since ancient times, people have sought ways to keep their drinks hot. In antiquity, clay and ceramic containers were used, which, although not very efficient at thermal insulation, served to keep liquids hot for a while.
[0006] A significant advance occurred in 1892 when the Scottish scientist Sir James Dewar invented the Dewar flask, a double-walled container with a vacuum in between. This design maximizes heat transfer by conduction and convection and became the basis for modern thermos flasks. Although Dewar did not patent it, his design was fundamental to the development of thermal containers.
[0007] In 1904, two German glassmakers, Reinhold Burger and Albert Aschenbrenner, improved the design of the Dewar flask by adding an outer protective layer and patented their invention under the name "Thermos." The Thermos brand became synonymous with thermal containers worldwide.
[0008] During the 20th century, thermos technology diversified and improved. More durable materials such as stainless steel and high-quality plastics were introduced. These materials not only improved the durability and thermal performance of the containers but also made them lighter and more portable. Thermoses became popular among hikers, workers, and students, who appreciated their ability to keep drinks hot or cold throughout the day.
[0009] With the advancement of materials science and engineering, new insulation technologies were developed. The introduction of vacuum technology in stainless steel containers during the 1960s marked a significant milestone. These double-walled vessels with an intermediate vacuum provided superior thermal insulation, allowing beverages to stay hot or cold for longer.
[0010] Designers also began to focus on ergonomics and aesthetics. Cups appeared with more comfortable designs, spill-proof lids, and spouts designed for easy drinking straight from the cup. In addition, manufacturers began offering a variety of colors and styles to appeal to different market segments.
[0011] In recent decades, sustainability has become a central concern in product design. Manufacturers of thermal mugs have responded to this trend by incorporating recyclable and biodegradable materials, as well as improving production processes to reduce environmental impact. Efforts have focused on developing plastics free of BPA and other harmful chemicals, improving consumer safety and health.
[0012] Advances in nanotechnology and composite materials have also enabled the creation of more efficient and lighter thermal cups. Recently, internal coatings have been introduced that improve cleaning and prevent residue buildup, making the cups more hygienic and easier to maintain.
[0013] Thermal mugs have become an essential part of daily life for many people. They are a common accessory for those looking to keep their coffee hot during their commute, for students who need an energy drink during long study sessions, and for adventurers who require constant hydration in extreme conditions. Personalization and branding of thermal mugs have also grown, allowing users to express their personal style and loyalty to certain brands.
[0014] Thermal mugs have evolved from simple clay containers to sophisticated high-tech devices, reflecting advances in materials science, design, and sustainability. This evolution continues, driven by the constant demand for products that combine functionality, aesthetics, and environmental responsibility. Therefore, a prior art search was conducted for thermal mugs with temperature preservation mechanisms for hot beverages. This search revealed the development of various designs, as mentioned in Chinese patent application number CN 101843425 (A), published on September 29, 2010, entitled "THERMO MUG CAPABLE OF PRESERVING AND ARBITRARILY REDUCING TEMPERATURE." This application describes a thermal drinking mug structure where heat preservation and radiant temperature can be selected and adjusted according to the user's preference.The thermal mug, capable of preserving and arbitrarily reducing temperature, comprises a mug liner and an outer mug shell. A plurality of interlayer cups, small internally and large externally, are arranged one on top of the other between the liner and the outer mug shell. The interlayer cups are made of plastic, and their number ranges from 1 to 5. Following this technical design, when the user prepares and drinks tea on a cold day, the interlayer cups effectively preserve and reduce the temperature, insulating against internal and external heat exchange and providing good heat retention. While drinking tea, the user can hold the mug to warm their hands. Depending on the temperature of the tea water in the liner, when the liner is removed, the user can decide how many interlayer cups remain outside to avoid burning their hands.In summer, the interlayer cups and the cup shell can be removed and the liner can be used directly.
[0015] As can be seen in the aforementioned document, they do not describe how to solve the problem of maintaining the appropriate temperature of the contained liquid for prolonged periods, through user intervention without the need to manipulate the glass or cup, by removing the interlayers, an activity that must be carried out before pouring the liquid inside, since once inside, removing the interlayers requires a complex and risky action that could cause burns, unlike the thermal cup with a temperature preservation mechanism for hot beverages that is the subject of the present invention, which is made up of a container that houses an internal structure of the same shape as said container but of smaller dimensions, which allows creating a space between the internal surface of the container and the external surface of the internal structure, improving thermal insulation;The vessel that is the subject of the present invention allows the redistribution of heat using the vapor generated by the liquid itself, by means of an internal structure of the vessel, which has a nozzle joined with a duct placed along the height of the internal structure in a spiral shape, through which the vapor is distributed uniformly, ensuring that the liquid remains hot for longer and at a homogeneous temperature; the above is possible since its configuration allows the user to blow air through a nozzle, which facilitates the redistribution of the vapor, in order to maintain the temperature of the liquid.
[0016] OBJECT OF THE INVENTION
[0017] The present invention aims to provide a thermal cup with a temperature preservation mechanism for hot drinks, which solves the aforementioned problems.
[0018] Another object of the present invention is to provide a thermal cup with a temperature preservation mechanism for hot beverages, which has a container that houses an internal structure of the same shape as said container but of smaller dimensions, which allows creating an interstitial space between the inner surface of the container and the outer surface of the internal structure, improving thermal insulation; the cup that is the subject of the present invention allows redistribution of heat using the vapor generated by the liquid itself, by means of an internal structure of the cup, which has a nozzle joined with a duct placed along the height of the internal structure in a spiral shape, by means of which the vapor is distributed uniformly, ensuring that the liquid stays hot for longer and at a homogeneous temperature;The above is possible because its configuration allows the user to blow air through a nozzle, which facilitates the redistribution of the vapor, in order to maintain the temperature of the liquid.
[0019] BRIEF DESCRIPTION OF THE FIGURES
[0020] The characteristic details of this novel thermal mug with a temperature preservation mechanism for hot beverages are clearly shown in the following description and accompanying figures, as well as an illustration thereof, using the same reference symbols to indicate the parts shown. However, these figures are shown by way of example and should not be considered limiting to the present invention.
[0021] Figure 1 shows a perspective view of the exploded parts of the thermal mug with a temperature preservation mechanism for hot drinks.
[0022] Figure 2 shows a perspective view of the thermal mug with temperature preservation mechanism for hot drinks.
[0023] Figure 3 shows a perspective view of the thermal mug with temperature preservation mechanism for hot drinks, without the lid and with the space between the container and the internal structure.
[0024] Figure 4 shows a detailed top perspective view of the lid of the thermal mug with a temperature preservation mechanism for hot drinks.
[0025] Figure 5 shows a detailed top perspective view of the internal structure of the thermal mug with a temperature preservation mechanism for hot drinks.
[0026] Figure 6 shows a detailed perspective view of the internal structure of the thermal mug with a temperature preservation mechanism for hot drinks.
[0027] DETAILED DESCRIPTION OF THE INVENTION
[0028] For a better understanding of the present invention, the parts that make up the thermal cup with temperature preservation mechanism for hot beverages, which is the subject of the present invention, are listed below:
[0029] 1. Container
[0030] 2. Internal structure
[0031] 3. Duct
[0032] 4. Nozzle
[0033] 5. Lid
[0034] 6. Nozzle opening
[0035] 7. Cover
[0036] 8. Opening
[0037] 9. Space
[0038] With reference to the figures, the thermal cup with temperature preservation mechanism for hot drinks is made up of a thermal container (1) that preferably has a truncated conical shape like a cup, which is configured to contain the temperature of what is inside, acting as an external coating and providing a crucial thermal insulation layer.
[0039] An internal structure (2) is housed inside the container (1) in such a way that it is protected by said container (1). The internal structure (2) is configured to contain the hot liquid, whose temperature is maintained; said internal structure (2) has the same truncated conical shape but with smaller dimensions than the container (1). This configuration allows creating a space (9) between the internal surface of the container (1) and the external surface of the internal structure (2), as shown in Figure 3, which improves thermal insulation by significantly reducing heat transfer between the liquid contents and the external environment.
[0040] The thermal container (1) and internal structure (2) can be made of one or more thermal materials, such as stainless steel, borosilicate glass, ceramic, high-quality plastics like polypropylene or polycarbonate, silicone, or a combination thereof. These materials are selected and combined to manufacture the thermal container (1) and internal structure (2) that maintains the temperature of beverages for extended periods.
[0041] A duct (3) is embedded in the surface of the internal structure (2), running its entire height in a spiral shape. The duct (3) is configured so that part of its surface is inside the internal structure (2) and the other part is outside. The lower end of the duct (3), located at the bottom of the internal structure (2), has an opening that allows the entry of the contained hot liquid. The upper end of the duct (3) protrudes slightly from the top of the internal structure (2); a nozzle (4), ergonomically shaped for a comfortable fit in the mouth, is positioned above this upper end of the duct (3).
[0042] This configuration allows the vapor from the liquid contained in the internal structure (2) to rise through the duct (3) and exit through the nozzle (4), so that the user of the thermal mug with a temperature preservation mechanism for hot drinks places their mouth on the nozzle (4) in order to blow, which allows the vapor generated by the hot liquid to travel through the inside of the duct (3) back to the bottom of the internal structure (2), heating the duct (3) and in turn transferring this heat to the liquid contained in the internal structure (2), and this action is repeated as many times as necessary to maintain the high temperature of the liquid.
[0043] The surface of the duct (3) that is outside the internal structure (2) is in contact with the internal surface of the container (1). This configuration allows the internal structure (2) to be positioned inside the container (1) to create the space (9) between the internal surface of the container (1) and the external surface of the internal structure (2). It also prevents the internal structure (2) from coming out or having unwanted movements when the thermal cup with a temperature preservation mechanism for hot drinks, which is the subject of this invention, is tilted to drink the liquid it contains, thus preventing the liquid from spilling.
[0044] A lid (5) is placed on top of the container (1), fitted tightly to ensure maximum heat and steam retention within the thermal mug with a temperature preservation mechanism for hot beverages, which is the subject of the present invention. The lid (5) has an opening for the nozzle (6), which is located in the middle of the lid (5). The nozzle's rim (4) is positioned over this opening. This configuration allows the user to blow air directly into the nozzle (4), thus facilitating the distribution of the accumulated steam into the duct (3). A cover (7) is placed over the opening for the nozzle (6), preferably by means of a hinge. This allows the cover to be opened so the user can blow air and distribute the steam into the duct (3) or closed to prevent steam from escaping, thereby maintaining the temperature of the contained liquid.
[0045] Furthermore, the lid (5) has a drinking opening (8), located on the upper front part. This opening is configured to allow the consumption of the liquid contained in the thermal cup with temperature preservation mechanism for hot drinks, the subject of the present invention, maintaining thermal integrity without the need to completely remove the lid (5).
[0046] The configuration of the thermal mug with a temperature preservation mechanism for hot beverages, which is the subject of the present invention, allows the mug to not only be an effective tool for keeping beverages hot, but also interactive, thus improving the user experience. In view of what has been stated in this descriptive chapter, it is reiterated that the scope of the present invention shall not be limited by the embodiments particularly described, and it is understood that variations may be made in several respects. Such variations shall not be considered a departure from the spirit and scope of the invention, and all such modifications may be obvious to a person skilled in the art and shall be included within the scope of the following claims.
Claims
CLAIMS 1. A thermal mug with a temperature preservation mechanism for hot beverages, characterized in that it comprises: a thermal container (1) which contains the temperature of what is inside, acting as an external coating and providing a layer of thermal insulation; an internal structure (2) which contains the hot liquids, housed inside the container (1) in such a way that it is protected by said container (1), said internal structure (2) having the same shape but with smaller dimensions than the container (1), in such a way that a space (9) is created between the internal surface of the container (1) and the external surface of the internal structure (2); a duct (3) is embedded in the surface of the internal structure (2), running the entire height of it in a spiral shape;The lower end of the duct (3), which is located at the bottom of the internal structure (2), has an opening that allows the entry of the contained hot liquid. The upper end of the duct (3) protrudes slightly from the top of the internal structure (2); a nozzle (4) is placed on this upper end of the duct (3); a lid (5) is placed on the top of the container (1), said lid (5) has an opening for the nozzle (6) which is located in the middle of the lid (5), over which the outline of the nozzle (4) is placed; and, the lid (5) has a drinking opening (8), located on the upper front.
2. The thermal cup according to claim 1 characterized in that the container (1) and the internal structure (2) have a truncated conical shape like a cup.
3. The thermal cup according to claim 1 characterized in that the container (1) and the internal structure (2) are made of one or more thermal materials.
4. The thermal mug according to the preceding claim, characterized in that the thermal materials are stainless steel, borosilicate glass, ceramic, high-quality plastics such as polypropylene or polycarbonate, silicone, or a combination thereof.
5. The thermal cup according to claim 1 characterized in that the duct (3) is embedded in the internal structure (2) such that one part of its surface is inside the internal structure (2) and the other part is outside.
6. The thermal cup according to claim 1 characterized in that the nozzle (4) has an ergonomic shape, which allows it to fit comfortably in the mouth.
7. The thermal cup according to claim 1 characterized in that the surface of the duct (3) that is outside the internal structure (2) is in contact with the internal surface of the container (1), allowing the position of the internal structure (2) to be secured inside the container (1), and to generate the space (9) between the internal surface of the container (1) and the external surface of the internal structure (2).
8. The thermal mug according to claim 1 characterized in that the lid (5) fits tightly on top of the container (1) to ensure maximum retention of heat and steam within the thermal mug with temperature preservation mechanism for hot drinks.
9. The thermal cup according to claim 1 characterized in that a cover (7) is placed over the opening for the nozzle (6).
10. The thermal cup according to claim 9 characterized in that the connection between the cover (7) and the opening for the nozzle (6) is by means of a hinge.