Claims: We Claim:
1. A self-heating vessel for instant heating a food or a liquid, said self-heating vessel comprising:
a multi-layered structure wherein outer layer is an insulated layer, an inner layer is a conductive layer, and an induction coil is placed in between the outer layer and inner conductive layer;
a battery, which powers the induction coil for instant heating; and
a switch used to start and shut-off the battery.

2. The self-heating vessel for instant heating a food or a liquid, as claimed in claim 1, wherein the self-heating vessel further comprises a compartment at the bottom, which includes a sachet filled with the ingredients required to instantly prepare a food or a liquid.

3. The self-heating vessel for instant heating a food or a liquid, as claimed in any of the preceding claims, wherein the self-heating vessel further comprises a straw.

4. The self-heating vessel for instant heating a food or a liquid, as claimed in any of the preceding claims, wherein the self-heating vessel further comprises a lid cover.

5. The self-heating vessel for instant heating a food or a liquid, as claimed in any of the preceding claims, wherein the inner layer is a conductive layer which may be made up of thin aluminum foil, copper foil, fiber wool or ionized water with more free electrons.

6. The self-heating vessel for instant heating a food or a liquid, as claimed in any of the preceding claims, wherein the outer layer is an insulating layer which may be made up of paper, plastic, rubber, glass, porcelain, ceramic or polystyrene foams.

7. The self-heating vessel for instant heating a food or a liquid, as claimed in any of the preceding claims, wherein the induction coil may be made up of copper, aluminum, steel or brass.
8. The self-heating vessel for instant heating a food or a liquid, as claimed in any of the preceding claims, wherein the switch may be a self-actuated switch or a mechanical switch.

9. The self-heating vessel for instant heating a food or a liquid, as claimed in any of the preceding claims, wherein the battery is either replaceable or rechargeable.

10. The self-heating vessel for instant heating a food or a liquid, as claimed in any of the preceding claims, wherein the straw is made up of paper or plastic material, further the straw supports the process of smooth drinking and spill proof property while travelling.

11. The self-heating vessel for instant heating a food or a liquid, as claimed in any of the preceding claims, wherein the shape of self-heating vessel may be rectangular, U-shape, or V-shape.

12. The self-heating vessel for instant heating a food or a liquid, as claimed in any of the preceding claims, wherein the self-heating vessel may be selected from cup, mug, flask, can, jar.

13. The self-heating vessel for instant heating a food or a liquid, as claimed in any of the preceding claims, wherein the self-heating vessel may be designed for a single-use or a multiple-use.

14. The self-heating vessel for instant heating a food or a liquid, as claimed in any of the preceding claims, wherein the food or the liquid may be selected from tea, coffee, juice, beverage, porridge, oats, astringency, noodles, dalia.

15. The self-heating vessel for instant heating a food or a liquid, as claimed in any of the preceding claims, the self-heating vessel may further comprise foldable lines, which helps in folding the self-heating vessel.

16. The self-heating vessel for instant heating a food or a liquid, as claimed in any of the preceding claims, the self-heating vessels further comprises a space at the bottom of the cup to hold cookies.

17. The self-heating vessel for instant heating a food or a liquid, as claimed in any of the preceding claims, wherein the self-heating vessel further comprises a stirrer attached with the straw or a motor for providing self-stirring

, Description:FIELD OF THE INVENTION
The present invention generally relates to the field of self-heating vessel for a food or a liquid. The invention, particularly relates to a self-heating vessel for instant heating a food or a liquid, said self-heating vessel comprising: a multi-layered structure wherein outer layer is an insulated layer, an inner layer is a conductive layer, and an induction coil is placed in between the outer layer and inner conductive layer; a battery, which powers the induction coil for instant heating; and a switch used to start and shut-off the battery.

BACKGROUND OF THE INVENTION

Beverage makers especially those for brewing tea and coffee are of increasing interest due to the resurgence of consumer interest in quality, flavorful tea and more especially coffee. However, this desire is counter balanced by the need to make tea or coffee, quickly and easily to meet the time demands of busy people living fast paced lives with little time to make a pot of coffee. Further, commercially prepared food designed for ease of consumption. Products designated as convenience or ready-to-eat foods are often prepared food that can be sold as hot, ready-to-eat dishes; as room-temperature, shelf-stable products; or as refrigerated or frozen products that require minimal preparation (typically just heating). In the market, there is also rise in availability of portable self-heating containers for heating comestible items such as liquids, beverages, soups and the like without the necessary use of an external heat source such as a stove, a microwave oven, a campfire or the like.

A number of different types of self-heating mugs/cups/containers are available in the prior art. For example, the following patents are provided for their supportive teachings and are all incorporated by references. Patent application, CN101766424 discusses a self-heating electric heat insulated cup which comprises a double layer cup body and a cup cover. The cup cover or the cup body is provided with a solar-cell panel; an inner layer cup body is provided with a heating wire; the output electric energy of a solar-cell panel is connected to the heating wire by a lead; and an automatically electrical heating system is formed by a solar energy power switch arranged on the external surface of the cup body, a battery supply switch, a temperature control switch, a solar storage battery arranged between the inner and outer cup bodies and a temperature sensing element fixed on the inner layer cup body. Another prior art, US5799566 discloses a self propelled moving-filter beverage maker. The beverage maker includes an invertible housing having an elongate chamber, a cover at one end removable sealingly engaged with the housing for enabling the introduction and removal of liquid, and a separate non-neutral density filter free to move longitudinally in the chamber; the filter has a cross-section conforming to that of the chamber to minimize liquid bypass and has perforations at its longitudinal ends to accommodate liquid flow through the filter as the filter moves through the liquid each time the housing is inverted. Yet another prior art, US6119461 discusses a metallic insulated container (e.g. vacuum) such as a cup, mug, tumbler, bottle, coffee maker and brewing container is combined with a solid state thermal electric generator to create a container which heats and cools food and beverages and keeps the food and beverages hot or cold. Yet another prior art, US6123010 discloses a portable hot beverage machine. This device also has a detachable beverage mug which can be operated independently from the beverage maker. Both units have self-contained carrying cases and may be powered by electric, rechargeable battery pack, solar power, a wind up generator, and a cigarette lighter plug. safety features include removable overflow reservoir will spill prevention lip, on and off switch with built in timer, insulated receptacle to hold the liquids, and mounting brackets to stabilize units. Another non-patent literature prior art which discloses a one-touch self heating container. Self-heating in the container occurred when in one of the compartment water is coming in contact with the lime stone to generate heating (see: https://www.youtube.com/watch?v=pAquMQT0Nkg ). Another non-patent literature prior art document also found which appear to discuss Hot-Can self heating soups (see: https://www.youtube.com/watch?v=bDw3y_NCV0I ). Another non-patent literature prior art document which appear to discuss commercially viable self-refrigerating beverage can, called the Instant Cool Can™ (“I.C. CAN™”). The I.C. CAN™ is entirely self-contained and portable, displaces only approximately 25% of the beverage in the can, reduces the temperature of the enclosed beverage by approximately 30° to 40°F within three to four minutes, can be readily integrated with existing high speed filling and manufacturing facilities for conventional metal beverage cans, and meets all applicable safety, environmental and recycling requirements. The self-refrigerating beverage can works on the same basic refrigeration principles as the household refrigerator (see https://www.youtube.com/watch?v=Qof_KAirUh0 ). Yet another non-patent literature prior art document also located, which appear to discuss chineseself heating rice meal package. The self-heating occurs due to the water comes in contact with the ingredients like lime stone to generate heat (see https://www.youtube.com/watch?v=HWGks8_sF84 ).

However, above mentioned references and many other similar references has one or more of the following shortcomings: (a) Expensive; (b) Complex designing of the containers; (c) utilized internal resistance coils which produced very high temperatures and breached the vacuum separating the inner and outer shells of the container; (d) while stirring the containers may increase chances of accidents; (e) spilling of how water and burning the user; (f) preserving organoleptic properties; (g) hygiene products; and (h) time consuming may be more than 5 minutes.

There remains a constant need to make self-heating containers for several items such as liquid (beverages); ready-to-cook porridges (e.g. oats, noodles, rice); and medical astringencies. The present application addresses the above mentioned concerns and short comings with regard to providing self-heating vessel.

SUMMARY OF THE INVENTION
In the view of the foregoing disadvantages inherent in the known types of self-heated container for heating a food or beverages now present in the prior art, the present invention provides an improved self-heating vessel. As such, the general purpose of the present invention, which will be described subsequently in greater detail, is to provide a new and an improved self-heating vessel for instant heating a food or a liquid which has all the advantages of the prior art and none of the disadvantages.

An object of the present invention is to provide a self-heating vessel for instant heating a food or a liquid, said self-heating vessel comprising: a multi-layered structure wherein outer layer is an insulated layer, an inner layer is a conductive layer, and an induction coil is placed in between the outer layer and inner conductive layer; a battery, which powers the induction coil for instant heating; and a switch used to start and shut-off the battery.

It is another object of the invention to provide the self-heating vessel for instant heating a food or a liquid, wherein the self-heating vessel further comprises a compartment at the bottom, which includes a sachet filled with the ingredients required to instantly prepare a food or a liquid.

It is yet another object of the invention to provide the self-heating vessel for instant heating a food or a liquid, wherein the self-heating vessel further comprises a straw.

It is yet another object of the invention to provide the self-heating vessel for instant heating a food or a liquid, wherein the self-heating vessel further comprises a lid cover.

It is yet another object of the invention to provide the self-heating vessel for instant heating a food or a liquid, wherein the inner layer is a conductive layer which may be made up of thin aluminum foil, copper foil, fiber wool or ionized water with more free electrons.

It is yet another object of the invention to provide the self-heating vessel for instant heating a food or a liquid, wherein the outer layer is an insulating layer which may be made up of paper, plastic, rubber, glass, porcelain, ceramic or polystyrene foams.

It is yet another object of the invention to provide the self-heating vessel for instant heating a food or a liquid, wherein the induction coil may be made up of copper, aluminum, steel or brass.

It is yet another object of the invention to provide the self-heating vessel for instant heating a food or a liquid, wherein the switch may be a self-actuated switch or a mechanical switch.

It is yet another object of the invention to provide the self-heating vessel for instant heating a food or a liquid, wherein the straw is made up of paper or plastic material, further the straw supports the process of smooth drinking and spill proof property while travelling.

It is yet another object of the invention to provide the self-heating vessel for instant heating a food or a liquid, wherein the shape of self-heating vessel may be rectangular, U-shape, or V-shape.

It is yet another object of the invention to provide the self-heating vessel for instant heating a food or a liquid, wherein the self-heating vessel may be selected from cup, mug, flask, can, jar.

It is yet another object of the invention to provide the self-heating vessel for instant heating a food or a liquid, wherein the self-heating vessel may be designed for a single-use or a multiple-use.

It is yet another object of the invention to provide the self-heating vessel for instant heating a food or a liquid, wherein the food or the liquid may be selected from tea, coffee, juice, beverage, porridge, oats, astringency, noodles, dalia.

It is yet another object of the invention to provide the self-heating vessel for instant heating a food or a liquid, wherein the battery is either replaceable or rechargeable.

It is yet another object of the invention to provide the self-heating vessel for instant heating a food or a liquid, the self-heating vessel may further comprise foldable lines, which helps in folding the self-heating vessel.

It is yet another object of the invention to provide the self-heating vessel for instant heating a food or a liquid, the self-heating vessels further comprises a space at the bottom of the cup to hold cookies.

It is yet another object of the invention to provide the self-heating vessel for instant heating a food or a liquid, wherein the self-heating vessel further comprises a stirrer attached with the straw or a motor for providing self-stirring.

In this respect, before explaining at least one embodiment of the invention in detail, it is to be understood that the invention is not limited in its application to the details of construction and to the arrangements of the components set forth in the following description or illustrated in the drawings. The invention is capable of other embodiments and of being practiced and carried out in various ways. Also, it is to be understood that the phraseology and terminology employed herein are for the purpose of description and should not be regarded as limiting.

These together with other objects of the invention, along with the various features of novelty which characterize the invention, are pointed out with particularity in the disclosure. For a better understanding of the invention, its operating advantages and the specific objects attained by its uses, reference should be had to the accompanying drawings and descriptive matter in which there are illustrated preferred embodiments of the invention.

BRIEF DESCRIPTION OF THE DRAWINGS
The invention will be better understood and objects other than those set forth above will become apparent when consideration is given to the following detailed description thereof. Such description makes reference to the annexed drawings wherein:
Fig.1 depicts perspective view of the self-heating vessel.
Fig.2 depicts top view of the self-heating vessel.
Fig. 3 depicts perspective view of the foldable self-heating vessel.
Fig. 4 depicts perspective view of the self-heating vessel from outside – ornamental look.

DETAILED DESCRIPTION OF THE INVENTION
In the following detailed description, reference is made to the accompanying drawings which form a part hereof, and in which is shown by way of illustration specific embodiments in which the invention may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the invention, and it is to be understood that the embodiments may be combined, or that other embodiments may be utilized and that structural and logical changes may be made without departing from the spirit and scope of the present invention. The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the present invention is defined by the appended claims and their equivalents.

As mentioned above, there remains a need for a self-heating device that helps persons to prepare the preferred beverages such as tea, coffee, energy drink, juices or a food, such as oats, dalia, noodles, instantly. The current invention specifies for preparing beverages or food instantly while on a travel or as and when required. While on a travel, if a person wants to drink coffee or tea or any beverage, he will have to wait for the halt of a vehicle which is not feasible when using public mode of transport. Further, the persons on a camping or picnic area or while travelling to a remote location also require to heat comestible items such as liquids, beverages, soups and the like without the necessary use of an external heat source such as a stove, a microwave oven, a campfire or the like. Also, availability of ingredients to prepare the desired comestible items is not possible when a person is travelling to another geographical location. Self-heating containers find useful application in instances where the above-mentioned external heat sources are not available or are not conducive to the environment or situation, such as camping, hiking, picnicking in a car, a boat, a plane, a train, on a playing field, at a sports stadium or in any remote area distant from an external heat source. There may also be instances where for example at a time of crises or conflict, the making or using of a campfire to heat up comestible items may be unsafe and thus this self-heating container finds an application. This invention also helps patients in hospitals, to prepare porridges of their wish including oats hygienically. The self-heating vessel can also be used to prepare hot water and astringency to treat cold, cough or fever.

Figure 1 depicts perspective view of the self-heating vessel. Figure 2 depicts the top view of the self-heating vessel. The self-heating vessel 100 for instant heating a food or a liquid, said self-heating vessel comprising: a multi-layered structure wherein outer layer 11 is an insulated layer, an inner layer 10 is a conductive layer, and an induction coil 2 is placed in between the outer layer and inner conductive layer; a battery1, which powers the induction coil 2 for instant heating; and a switch 9 used to start and shut-off the battery. The self-heating vessel 100 has a multi-layered structure that is winded by an induction coil 2 at its second layer. The outer layer 11 of the self-heating vessel 100 is made up of an insulating material, which will prevent the heat from spreading to outer layer of the self-heating vessel 100 so that user holding the cup will not feel the heat of the beverage inside. The outer layer 11 is an insulating layer which may be made up of paper, plastic, rubber, glass, porcelain, ceramic or polystyrene foams. Further, the inner layer 10 is a conductive layer which may be made up of thin aluminum foil, copper foil, fiber wool or ionized water with more free electrons. The induction coil 2 may be made up of copper, aluminum, steel or brass. The battery 1 that is placed at the bottom of the cup provides energy to the induction coil 2 is the main source of power. The self-heating vessel may also include optionally a solar cell (which is not shown in the figure). If the solar cell is connected, this generates the energy that will be stored into the battery 1 as an extra source. The solar cell can be placed with the self-heating vessel during manufacturing.

The self-heating vessel 100 comprises a battery 1 and a switch 9. The battery provides powers/energy/electricity to the induction coil 2 for instant heating. The heat is transferred from the induction coil 2 to the liquid/food inside the self-heating vessel 100 thru the inner conductive layer 10. Further, the switch can be either a self-actuated switch or a mechanical switch. The mechanical switch works when the user pushes/presses the switch/button and the battery 1turn on. While the self-actuated switch works as soon as the liquid/water is filled into the self-heating vessel 100 at certain specific level up to the level mark 12. The level mark 12 is predefined as per the size or volume of the self-heating vessel for example, 50 ml, 75 ml, 100 ml, 150 ml, and likewise up to the 350 ml. The self-actuation of the switch works as soon as the liquid/water mark touch to the level mark. Further, the battery 1can be shut off automatically as soon as it attains the pre-specified temperature for each type of food or liquid. The temperature range to be achieve for the self-heating vessel 100 is in the range of 45 0C to 80 0C.

The self-heating vessel 100 may also further include a lid cover 6 and a straw 3. The lid cover 6 also has a spill-proof hole 7 for inserting straw 3 to the self-heating vessel 100 and a slot 8 which is used to fill water into the self-heating vessel 100. The water will be filled up to the level mark 12. The straw 3 also includes a stirrer 5 at the bottom. The stirrer 5 will rotate with the help of a threading technique that will rotate the straw to provide stirring. Also, alternative stirring technique is to place the motor, which helps rotation of the straw which will start automatically with the heating process. Yet another stirring technique is to just place an elastic thread attached to the tip of the straw. The straw 3 is designed in such a way that supports the process of smooth drinking and spill proof property while travelling. The straw 3 can be made up of paper or plastic material.

The self-heating vessel 100 further comprises a compartment 4 at the bottom, which includes a sachet filled with the ingredients required to instantly prepare a food or a liquid. The sachet is placed inside the compartment 4 at the time of manufacturing the self-heating vessel. There are two types of ingredients sachet/pouch: (a) For beverages or liquids like coffee, tea, juices, and (b) for instant porridges and astringencies. For beverages, ingredients will be placed in a porous pouch/sachet which can be edible or not. The ingredients such as sugar are dissolvable and will be dissolved with the help of water and heat. Also, coffee or tea powders will be instant powders. The ingredients pouch may also resemble dip tea pouches. For porridges and astringencies the ingredients sachet/pouch is totally dissolvable and edible. Oats, noodles, dalia and other porridges/food products will be using instant materials. Since they will be soft, time consumption will not be more but food products will be providing more energy. The vessel has been provided a space at the bottom to hold cookies.
Fig. 3 depicts perspective view of the foldable self-heating vessel. The foldable self-heating vessel 300 includes all the elements as explained in the Fig. 1. The foldable self-heating vessel further also includes foldable lines 301. The foldable lines are reduces the space requirements for transporting the self-heating vessel. Which further are very easy to open when the consumer needs use the self-heating vessel. The foldable self-heating vessel 300 for instant heating a food or a liquid, said self-heating vessel comprising: a multi-layered structure wherein outer layer is an insulated layer, an inner layer is a conductive layer, and an induction coil is placed in between the outer layer and inner conductive layer; a battery 1, which powers the induction coil for instant heating; and a switch used to start and shut-off the battery. The foldable self-heating vessel 300 may also further include a lid cover and a straw. The lid cover also has a spill-proof hole for inserting straw to the foldable self-heating vessel 300 and a slot which is used to fill water into the foldable self-heating vessel 300. The foldable self-heating vessel 300 further comprises a compartment at the bottom, which includes a sachet filled with the ingredients required to instantly prepare a food or a liquid. The sachet is placed inside the compartment 4 at the time of manufacturing the self-heating vessel. The foldable self-heating vessel 300 has been provided a space 302 at the bottom to hold cookies. Fig. 4 depicts perspective view of the self-heating vessel from outside – ornamental look.

It is to be understood that the above description is intended to be illustrative, and not restrictive. For example, the above-discussed embodiments may be used in combination with each other. Many other embodiments will be apparent to those of skill in the art upon reviewing the above description.

The benefits and advantages which may be provided by the present invention have been described above with regard to specific embodiments. These benefits and advantages, and any elements or limitations that may cause them to occur or to become more pronounced are not to be construed as critical, required, or essential features of any or all of the embodiments.

While the present invention has been described with reference to particular embodiments, it should be understood that the embodiments are illustrative and that the scope of the invention is not limited to these embodiments. Many variations, modifications, additions and improvements to the embodiments described above are possible. It is contemplated that these variations, modifications, additions and improvements fall within the scope of the invention.