Abstract:
The present invention relates to a heating container. More particularly, the invention relates to a portable heating container to conveniently heat foods, such as beverages, etc. The present invention, the portable heating container, comprises an outer container into which an inner container which contains foods is inserted and the heating substances that is to react to water are housed; and cover members which are detachably fixed to an open entrance of the outer container, in which a through-hole through which the inner container penetrates is formed, and in which an emission groove through which water vapors are emitted is formed around the through-hole.

Description:
TECHNICAL FIELD 
       [0001]    The present invention relates to a heating container. More particularly, the invention relates to a portable heating container to conveniently heat foods, such as beverages, etc. 
       PRIOR ART 
       [0002]    People have to prepare for heating devices, such as a burner, etc. to heat or cook foods in their outdoor activities such as mountain climbing, fishing, etc., whereas foods may be cooked or heated indoors without difficulty due to heating devices therein. Furthermore, the use of a heating device is restricted or even prohibited in many places due to danger such as a fire and environmental pollution it may cause. Thus, it is much more difficult to cook or heat foods in these places. 
         [0003]    Thus, people have to buy foods in neighboring areas or used a separate heat retaining container for their foods, while they enjoy their outdoor activities in place where the foods can&#39;t be cooked. It is inconvenient to carry a heat retaining container and its heat retaining capacity is limited in terms of time. Moreover, people can&#39;t conveniently cook foods with the heating retaining container where they want or when they want. 
         [0004]    A heating container has been developed and used to solve drawbacks stated above in the heat retaining container, which is composed of various components such as a sealed heating unit bag with food contents within a body thereof, etc. Foods may be heated as follows: to take out and open the bag; to pour water into the bag; to let it generate heats by reacting to the water. 
         [0005]    Heating containers which may be carried and used to warm a feeding bottle for an infant or a toddler were disclosed in the Korean Patent Publication No. 1105660 (hereinafter referred to as the “Cited Reference 1”) and the Korean Utility Model Publication No. 0446651 (hereinafter referred to as the “Cited Reference 2”). 
         [0006]    In the Cited Reference 1, a heating container is supplied separately from a feeding bottle. A heating pack is incorporated in a body of the heating container, which is composed of a heating substance containment part and a water reservoir. An upper part of the body of the hearing container is equipped with a heat transfer plate. A bottom of the feeding bottle, which contacts the upper part of the body of the heating container, is also equipped with its own heat transfer plate which receives heat from the heating transfer plate in the heating container. 
         [0007]    However, the configuration of the heating container in the Cited Reference 1 is complicated. Furthermore, it is hard to be widely used because a feeding bottle therefor shall also be equipped with its own heat transfer plate. 
         [0008]    In the Cited Reference 2, a heating container is composed of the following components: an outer container with open/shut means on upper part thereof; an inner container with open/shut means on upper part thereof, made of metals and housed within the outer container; retaining means which are combined with an lower part of the outer container and prevents the inner container from escaping and; a heating unit which is housed at the lower part of the inner container. 
         [0009]    However, the configuration of the heating container in the Cited Reference 2 is also complicated, because the inner container is separately housed in the outer container which contains liquid contents. Thus, a generally used feeding bottle may not be used with this invention without difficulty. 
         [0010]    References Cited 
         [0011]    Patent Publication No. 1105660 (published on Jan. 18, 2012) 
         [0012]    Korean Utility Model Publication No. 0446651 (published on Nov. 18, 2009) 
       SUMMARY OF INVENTION 
     Technical Objectives that the Invention Intends to Achieve 
       [0013]    The present invention intends to resolve the drawbacks in the existing heating containers and to provide a portable heating container which enables foods to be conveniently heated by storing the foods in an inner food container. 
       Structure and Characteristic of the Invention 
       [0014]    The present invention, a portable heating container, comprises an outer container into which an inner container which contains foods is inserted and the heating substances that is to react to water are housed; and cover members which are detachably fixed to an open entrance of the outer container, in which a through-hole through which the inner container penetrates is formed, and in which an emission groove through which water vapors are emitted is formed around the through-hole. 
         [0015]    A container seating part is formed within the inner side of the outer container, with which the inner container is seated apart from an inner bottom of the outer container. 
         [0016]    The container seating part is extended from the side of the outer container. 
         [0017]    A water line which determines a water level is formed in the side of the outer container. 
         [0018]    Support projections are protruded on a concentric circle on a rim of bottom of the outer container, and reinforcing ribs which reinforce a bottom surface of the outer container are protruded in the inside of the support projections. 
         [0019]    Cover members comprise a ring-shaped fixing part to be fixed on the entrance of the outer container with a fitting groove in which the entrance of the outer container is inserted; and a sealing part which is extended from an inner surface of the fixing part, whose inner diameter is smaller than an inner diameter of the inner container, which bends downward and adheres to the outside of the inner container with its elasticity when the inner container penetrates, which returns to its original state when the inner container is separated, and on which the water vapor emission groove is formed. 
         [0020]    An edge part which is extended outward is formed on the entrance of a container body which constitutes the outer container. A latching part which is extended downward and separated from the container body is formed on a rim of the edge part. The fixing part of the cover members is formed to cover the edge part as well as the latching part. 
       EFFECTS OF THE INVENTION 
       [0021]    The present invention can conveniently heat a food container outdoors and reduce production costs due to its simple configuration. The present invention is also easy to use. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0022]      FIG. 1  is a perspective view of the feeding bottle inserted into the portable heating container according to a preferred embodiment of the present invention. 
           [0023]      FIG. 2  is a front view of heating the feeding bottle by heating water with a heater housed in the portable heating container according to a preferred embodiment of the present invention. 
           [0024]      FIG. 3  is a perspective view of the portable heating container according to a preferred embodiment. 
           [0025]      FIG. 4  is an exploded perspective view of  FIG. 3 . 
           [0026]      FIG. 5  is a cross-sectional view along the line A-A of  FIG. 3 . 
           [0027]      FIG. 6  is a cross-sectional view along the part B of  FIG. 4 . 
       
    
    
     DETAILED DESCRIPTION OF EXEMPLARY EMBODIMENTS 
       [0028]    Hereinafter, the present invention is described in more detail with reference to attached drawings. 
         [0029]      FIG. 1  is a perspective view of the feeding bottle inserted into the portable heating container according to a preferred embodiment of the present invention, and  FIG. 2  is a front view of heating the feeding bottle by heating water with a heater housed in the portable heating container according to a preferred embodiment of the present invention. 
         [0030]    According to the present invention, the portable heating container  1 , the feeding bottle  2  as the inner container is inserted through a center of the cover members  200  which is fixed at the entrance of the outer container  100  which houses water and the heater  3 . As the time passes posterior to the insertion of the feeding bottle  2 , the water vapor is generated as the water boils with the reaction of the water and the heater  3 . The water vapor heats the feeding bottle  2  as it contacts the feeding bottle  2 . The generated vapor is emitted outward through the cover members  200 . 
         [0031]    The milk in the feeding bottle  2  may be heated to maintain its temperature to 37 which is the same temperature as that of mother&#39;s milk by adjusting composition of the heater  3 , weight of water which reacts with the heater  3 , emission of water vapor through the cover members  200 . In case where the inner container is a food container other than the feeding bottle  2 , such as a sake container, etc, the food container may be heated to a temperature that a user wants by adjusting conditions stated above. 
         [0032]    On the other hand, the feeding bottle  2  is inserted to the outer container  100  with the cover members  200  attached to the outer container  100  by inserting the feeding bottle  2  through the through-hole  221 , stated below, which is formed at the center of the cover members  200 . The feeding bottle  2  may be detached from the outer container  100  only by pulling it out. 
         [0033]      FIG. 3  is a perspective view of the portable heating container according to a preferred embodiment,  FIG. 4  is an exploded perspective view of  FIG. 3 ,  FIG. 5  is a cross-sectional view along the line A-A of  FIG. 3 , and  FIG. 6  is a cross-sectional view along the part B of  FIG. 4 . 
         [0034]    The present invention, the portable heating container  1  includes the outer container  100  and the cover members  200 . 
         [0035]    The outer container  100  into which the feeding bottle is inserted and which houses the water and the heater is composed of the container body  110 , the edge part  120 , the latching part  130 , the container seating part  140 , the support projections  150 , and the reinforcing ribs  160 . 
         [0036]    The container body  110  has accommodating spaces for the feeding bottle, water and the heater. The upper part of the container body  110  is exposed and the cross-section thereof is circular. The water line  170  which determines a water level is formed in the bottom side of the container body  110 . The water line  170  may be formed in a shape of grooves or projections. 
         [0037]    The edge part  120  is extended outward from the upper part of the container body  110  and an upper side thereof may be formed as round. The latching part  130  is extended downward from the rim of the edge part  120  and separated from the container body  110 . The cover members  120  are fixed in a shape to cover the upper part of the container body  110 , the edge part  200  and the latching part  130 . The cover members may be stably fixed and not be easily detached from the outer container  100  by the latching part  130 . 
         [0038]    The container seating part  140  make the feeding bottle  2  seat apart from the inner bottom of the container body  110  by extending inward from the side of the container body  110 . The reaction of water with the heater occurs in a space between the bottom surfaces of the container body  110  and the feeding bottle  2 . The container seating part  14  is arranged radially around a centerline which perpendicularly penetrates a center of the container body  110 . 
         [0039]    The support projections  150  are protruded on a concentric circle on a rim of bottom of the container body  110  and support the container body  110  to be separated from the bottom. The support projections  150  are formed to be separated from each other but may be formed continuously. 
         [0040]    The reinforcing ribs  160  are protruded from the bottom of the container body  110  and reinforce strength of the bottom surface of the container body  110  by being formed radially on the inside of the support projections  150 . 
         [0041]    The cover members  200  are made of materials with elasticity such as silicon and include the fixing part  210  and the sealing part  220 . 
         [0042]    The fixing part  210  is in a ring-shape and fixed on the entrance of the container body  110 . The fitting groove  211  is formed, in which the upper part of the container body  110 , the edge part  120  and the latching part  130  are fastened. The fixing part  210  includes the container body contact surface  212  which contacts to the inner surface of the container body  110 , the edge part contact surface  213  which is extended outward from the container body contact surface  212 , and the latching part contact surface  214  which covers the edge part contact surface  213  and the latching part  130 . Since the latching part contact surface  214  is formed in a bend-shape to cover the inside and outside of the latching part  130  and the bottom surface thereof, the fixing part is latched to the latching part  130 . Thus, the fixing part  210  may be detached from the container body  110  only by pulling the fixing part  210  with strength. 
         [0043]    As stated above, the fixing part  210  has its elasticity. Thus, in case where the fixing part  210  is fixed on the entrance of the container body  110 , a user opens the entrance of the fitting groove  211  with strength. Once the fixing part  210  is fixed on the entrance of the container body  110 , the entrance of the fitting groove  211  returns to its original state by its elasticity and the fixing part  210  is prevented from detaching. 
         [0044]    The sealing part  220  is horizontally extended inward from an inner circumferential surface of the container body contact surface  212  which composes the fixing part  210  and is formed in a thin silicon-shaped membrane. The sealing part  220  is formed as a ring-shape, which has a container penetration hole  221  through which the feeding bottle penetrates. A number of water vapor emission grooves  222  which emits water vapor in the outer container  100  are formed around the container penetration hole  221 . Since the inner diameter of the container penetration hole  221  is smaller than that of the feeding bottle, the fixing part  220  bends downward and attaches to the feeding bottle in case where the feeding bottle penetrates. It returns its original state in case where the feeding bottle is detached. The feeding bottle may be inserted and separated without difficulty due to the sealing part  220 . 
         [0045]    The present invention is explained in detail above on the basis of the preferential embodiment. However the preferential embodiment is only one of embodiments and a person having ordinary skills in the art may implement the present invention in various ways within the scope of the claims stated below.