• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A thermal container (1) for foodstuffs intended to be heated on an induction plate and to be placed on a support surface (S) which can be altered by the heat of the thermal container (1). The latter comprises at least a first layer of metallic material (10) having an outer surface (11) and an inner surface (12) intended to come into contact with the foodstuffs and a bottom (20) having an upper surface (22) a contact with the first layer of metallic material (10) and a lower surface (21) placed at the induction plate and resting on the heat-deformable support surface (S). The bottom (20) comprises at least a first plate of ferromagnetic material (30) configured so that when the bottom (20) is in correspondence with the induction plate, the upper surface (22) thereof (20) increases its temperature to heat the first layer (10). Moreover, the bottom (20) comprises at least one layer of thermally insulating material (50) with an upper face (52) facing the first plate of ferromagnetic material (30) and a lower face (51) coinciding with the lower surface (21) . The layer of thermally insulating material (50) is sized and / or configured so that when the upper surface (22) reaches a temperature of 140 ° C the container (1) can be rested on the supporting surface (S) without altering the same.
    公开号:CH712302A2
    申请号:CH00317/17
    申请日:2017-03-15
    公开日:2017-09-29
    发明作者:Prandelli Gianbattista
    申请人:Mepra Spa；
    IPC主号:
    专利说明:

    Description Field of application [0001] The present invention is generally applicable in the field of thermal food containers, and, in particular, relates to a thermal food container which can be heated by induction and is intended to be placed on a surface that can be deteriorated with heat.
    State of the Art [0002] Metal containers are known, such as pots, briquettes, trays or the like for containing foods which are used, for example, to serve on the table or during catering services. In particular, in such cases, there is a need to keep the food contained within the thermal containers as much as possible in temperature.
    [0003] Generally, these last known are thermally isolated.
    [0004] Furthermore, in certain situations it is necessary to heat the food inside the container by means of known systems such as for example induction plates.
    [0005] In particular, food can be heated either to cook the same or to serve it, for example, as in the case of an outdoor catering when food is to be served at a high temperature or the environment is particularly cold.
    [0006] Therefore the container can also reach rather high temperatures externally which make the movement of the same containers by a user complicated and dangerous and risk damaging the surfaces where they are placed.
    Presentation of the invention [0007] The object of the present invention is to overcome at least partially the drawbacks illustrated above, by providing a thermal container for foods of high functionality.
    [0008] Another object of the invention is to provide a heated food container for food.
    [0009] Another object of the invention is to provide a thermal container for foods that allows easy handling of the same by a user.
    [0010] Another object of the invention is to provide a thermal container for foods.
    [0011] Another object of the invention is to provide a thermal container for foods of high aesthetic "appeal".
    [0012] Another object of the invention is to provide a thermal container for foods of high durability.
    [0013] These objects, as well as others which will become clearer below, are achieved by a thermal container for foodstuffs according to what is described, illustrated and / or claimed herein.
    [0014] The dependent claims define advantageous embodiments of the invention.
    Brief description of the drawings [0015] Further characteristics and advantages of the invention will become more evident in the light of the detailed description of some preferred but not exclusive embodiments of a thermal container for foodstuffs, illustrated by way of non-limiting example with the aid of the united units. drawings in which: fig. 1 is a section view of a thermal food container 1; fig. 2 is an enlarged view of some details of fig. 1; fig. 3 is a section view of another embodiment of a thermal food container 1; fig. 4 and 5 are a section view of different embodiments of a bottom 20 of the thermal container 1.
    Detailed description of some preferred embodiments [0016] With reference to the above figures, a thermal container 1 for foods is described. The container 1 may have any shape and size depending on the needs and the food to be contained. For example, the container 1 could be a jug, as shown in fig. 1 or, according to different embodiments, it may be a pot (fig. 3), a tray or the like.
    [0017] Optionally, a cover 2 may be provided, intended to couple with the container to define a closed container.
    [0018] In any case, the container 1 may comprise at least a first layer of metallic material 10 which may have an outer surface 11 and an internal opposite surface 12 intended to come into contact with the foodstuffs.
    [0019] Conveniently, therefore, this metallic material may be of food grade and, preferably, may be of stainless material. For example, the first layer 10 may be made of stainless steel, preferably of AISI 304 steel (American Iron and Steel Institute), AISI 430 or similar.
    [0020] The container 1 may also be particularly suitable for being heated on an induction plate P. The latter may therefore present a lower portion 5 intended to come into contact with the induction plate P.
    [0021] Furthermore, the container 1 may comprise a bottom 20 which may be intended to be interposed between the induction plate P and the first layer 10 so that by operating the first the second increases its temperature.
    [0022] In particular, the bottom 20 may have a lower surface 21 placed in correspondence with the induction plate P and an upper surface 22 placed in contact with the first layer of metallic material 10. In other words, the bottom 20 may be arranged near the lower portion 5 of the container 1 so that the lower surface 21 thereof is in contact with the induction plate P.
    [0023] Suitably, the container 1 may comprise at least a first plate of ferromagnetic material 30, for example made of AISI 430 steel. This type of material, as is known, may be able to increase its temperature following the magnetic field generated by the induction plate P.
    [0024] According to an aspect of the invention, as shown in fig. 5, the bottom 20 may comprise this plate of ferromagnetic material 30 which may then be interposed between the lower surface 21 and the upper surface 22 thereof.
    [0025] In particular, the plate made of ferromagnetic material 30 may have a first upper surface 32 in contact with the first layer 10 to heat the latter and a second lower surface 31 destined to remain facing the induction plate P.
    [0026] In this way, once the container 1 is positioned on the induction plate P, the upper surface 22 of the bottom 20 can increase its temperature so as to heat the first metal layer 10 and therefore the contents of the container 1.
    [0027] According to a different embodiment shown in fig. 4, the bottom 20 may comprise at least one second plate made of thermally conductive material 40 interposed between the plate of ferromagnetic material 30 and the first layer 10 so as to favor the homogeneous diffusion of heat from the first to the second.
    [0028] For this purpose, this thermally conductive plate 40 can be made of a material with high thermal conductivity, for example made of aluminum, and may have a reduced thickness, for example between 0.5 mm and 7 mm.
    [0029] In particular, the second plate in thermally conductive material 40 may have a lower surface 41 in contact with the upper surface 32 of the first plate in ferromagnetic material 30 and an upper surface 42 in contact with the first layer 10 so that this last surface defines the upper surface 22 of the bottom 20.
    [0030] Although a container 1 has been described as being heated by means of an induction plate P, the container 1 may also be suitable for containing food which is already hot, for example, a drink such as tea or coffee.
    [0031] In any case, whether the container 1 is heated by means of the induction plate P, or whether it contains a hot food, the first layer 10 thereof can reach high temperatures.
    [0032] Conveniently, in order to allow a user to move the container 1 without getting burned, special handles 3 can therefore be provided, isolated from the first layer 10, for example by using suitable insulating materials of a known type.
    [0033] Furthermore, the container 1 can be used in particular areas, such as for example restaurants, catering and / or canteens where it is necessary to conserve as much as possible the temperature of the food inside the container 1.
    [0034] For this purpose, the container may comprise a second layer 15 arranged externally with respect to the first 10 and spaced from the latter so as to form an annular interspace 18.
    [0035] It can be understood that if the container 1 comprises a lid 2, the latter may also provide the inner layers 10 and outer layers 15 so as to have the interspace 18 for better thermal insulation of the container 1 itself.
    [0036] In particular, the second layer 15 which may also be made of a metallic material, preferably of stainless steel, may have an inner surface 17 intended to remain facing the outer surface 11 of the first layer 10 and an outer surface 16 intended for to remain visible from the outside.
    [0037] In this way, the annular gap 18 can be sized so as to be thermally insulating so as to limit the transmission of heat from the first layer 10 to the second 15 and vice versa.
    [0038] Thanks to these characteristics it may be possible to preserve the temperature of the food inside the container 1. Furthermore, advantageously, the temperature of the outer surface 16 of the second layer 15 may be sufficiently low so as to allow an operator to support the hands outside of it without getting burned.
    [0039] For example, if a beverage is inserted at a temperature of about 90 ° C inside the cold container 1, the outer surface 16 of the second layer 15 may have a temperature of about 50 ° C. On the other hand, if the content of the container 1 is heated on the induction plate P until it reaches a temperature of 90 ° C, the outer surface 16 of the second layer 15 may have a temperature of about 70 ° C.
    [0040] Possibly, the bottom 20 may be arranged so as to remain interposed between the two layers 10, 15 so that the latter do not come into contact so as to increase the thermal insulation between the same two layers 10, 15.
    [0041] In other words, the container 1 can be firstly heated on the induction plate P, subsequently moved by a user and then placed on a support surface S.
    [0042] In particular, this bearing surface S may be sensitive to heat, i.e. it may be a surface capable of altering and / or being damaged following the application of heat. For example, this supporting surface S may be the surface of a food trolley, a tray, a table made of wood or glass, a tablecloth or the like.
    [0043] For this purpose, the bottom 20 may therefore comprise at least a third layer of thermally insulating material 50 which may have a lower face 51 coinciding with the lower surface 21 of the bottom 20 intended to come into contact with the plate P and / or the bearing surface S, and an upper face 52 intended to remain facing the lower surface 31 of the plate made of ferromagnetic material 30. Possibly, as shown in the attached figures, the latter may be in contact with each other.
    [0044] the bottom 20 can then present a first thermally conductive portion 23 including the first plate of ferromagnetic material 30 and possibly the second plate of thermally conductive material 40, and a second insulating portion 24 including the third layer of thermally insulating material 50.
    [0045] In other words, once the container 1 is on the induction plate P, the insulating portion 24 will allow the passage of the electromagnetic waves so that the ferromagnetic plate 30 heats up to heat the first layer 10 of the container 1, while once the container 1 is on the supporting surface S, the insulating portion 23 can limit the transmission of heat between the thermally conductive portion 24 and the supporting surface S itself.
    [0046] Furthermore, the bottom 20 can be configured so that only the lower surface 21 of the same comes into contact with the bearing surface S. In other words, the lower face 51 of the layer of thermally insulating material 50 may protrude with respect to the second layer 15 of the container 1 so as to prevent the outer surface 16 of the layer 15 from coming into contact with the bearing surface S.
    [0047] Thanks to the characteristics described above, it may therefore be possible to place the container 1 on the supporting surface S without damaging the latter even when the contents of the container 1 have a particularly high temperature.
    [0048] For example, if the upper surface 22 of the bottom 20 has a temperature of about 140 ° C, the lower surface 21 of the same bottom 20 may have a temperature of about 70 ° C.
    [0049] Suitably, the layer of thermally insulating material 50 can be made of a polymeric material, for example a polymeric material having a thermal conductivity at 100 ° C lower than 0.3 W / mK.
    [0050] The layer of thermally insulating material 50 may also have a particularly reduced thickness, for example a thickness of less than 6 mm, preferably between 2 mm and 6 mm.
    [0051] This material may not degrade and / or release toxic gases due to the temperatures reached during the use of the container 1. For example, the material of the layer of thermally insulating material 50 may be stable at least up to 180 ° C.
    [0052] Preferably, such polymeric material may be of food grade.
    [0053] Furthermore, the polymeric material may also have a Shore A hardness in accordance with the ISO 868 standard greater than 65 Sh A and even more preferably greater than 70 Sh A so as to have such a hardness as to resist washing in the dishwasher without alterations .
    [0054] The material may be particularly suitable for being stamped on the plate made of ferromagnetic material 30 and / or on the second plate made of thermally conductive material 40 so as to ensure structural rigidity to the bottom 20.
    [0055] In this way it may be possible to avoid the use of glues and / or adhesives which could degrade and / or emit toxic gases during the operation of the container 1 due to the temperatures reached by the container itself or some of its parts.
    [0056] Moreover, thanks to these characteristics, it will be possible to prevent parts of the material of the layer of thermally insulating material 50 from remaining on the supporting surface S and / or on the induction plate P, causing dirt and / or compromising the latter.
    权利要求:
    Claims (10)
    [1]
    [0057] The container 1 may comprise anti-slip and anti-scratch elements 60 to prevent the container 1 from slipping on the supporting surface S and / or on the induction plate P due to accidental impact by the user and / or damage of the same supporting surface S and / or induction plate P. [0058] Possibly, the material of the layer of thermally insulating material 50 may itself be a non-slip and scratch-resistant material so that the lower surface 21 of the bottom 20 defines the elements anti-slip and anti-scratch 60. [0059] For example, the support surface S and / or the induction plate P may be made of glass while the polymeric material of the layer of thermally insulating material 50 may be a silicone, in particular a polyvinylmethylsiloxane (QMV). [0060] The invention is susceptible of numerous modifications and variations, all of which are within the scope of the appended claims. All the details may be replaced by other technically equivalent elements, and the materials may be different according to requirements, without departing from the scope of protection of the invention defined by the attached claims. claims
    1. A thermal container for foodstuffs intended to be heated on an induction plate (P) and to be rested on a supporting surface (S) deformable by the heat of the thermal container (1), said thermal container (1) comprising: - at least a first layer of metallic material (10) having an outer surface (11) and an inner surface (12) intended to come into contact with the food; and - a bottom (20) having an upper surface (22) in contact with said at least one first layer of metallic material (10) and a lower surface (21) destined to be placed in correspondence with the induction plate (P) and be placed on the heat-deformable support surface (S); wherein said bottom (20) comprises at least one first plate of ferromagnetic material (30) configured so that when said bottom (20) is in correspondence with the induction plate (P) the upper surface (22) of the same (20) increases its temperature for heating said at least one first layer (10); wherein said bottom (20) further comprises at least one layer of thermally insulating material (50) with an upper face (52) facing said at least one first plate of ferromagnetic material (30) and a lower face (51) coinciding with said surface lower (21), said at least one layer of thermally insulating material (50) being sized and / or configured so that when said upper surface (22) reaches a working temperature of 140 ° C the same at least a layer of thermally insulating material (50) does not degrade and the container (1) can be rested on said supporting surface (S) without altering the latter; wherein said thermally insulating material is food grade so that at said working temperature it does not emit toxic gases to the environment and to the food contained in the container.
    [2]
    2. Container according to claim 1, wherein said at least one first plate of ferromagnetic material (30) has a first upper surface (32) intended to interact with said at least one first layer (10) to heat the latter and a lower surface (31) intended to remain facing the upper face (52) of said at least one layer of thermally insulating material (50).
    [3]
    3. Container according to claim 2, wherein said bottom (20) further comprises at least a second plate made of thermally conductive material (40) to favor the homogeneous diffusion of heat, said at least one second plate made of thermally conductive material (40) presenting a first surface (42) in contact with said at least one first layer (10) to define said upper surface (22) of said bottom (20) and an opposite surface (41) in contact with said at least one first plate of ferromagnetic material (30 ).
    [4]
    4. Container according to claim 2, wherein said first upper surface (32) is in contact with said at least one first layer (10), said first upper surface (32) defining said upper surface (22) of said bottom (20) .
    [5]
    5. Container according to any one of the preceding claims, wherein said at least one layer of thermally insulating material (50) has a thickness of less than 6 mm, preferably a thickness of between 2 mm and 6 mm.
    [6]
    6. Container according to any of the previous claims, wherein said thermally insulating material is a polymeric material, preferably a silicone polyvinylmethylsiloxane (VMQ).
    [7]
    7. Container according to the previous claim, wherein said polymeric material is an anti-slip material so as to prevent the container (1) from slipping on the supporting surface (S) following an accidental impact by an operator.
    [8]
    8. Container according to claim 6 or 7, wherein said polymeric material has a hardness such as to resist washing in the dishwasher without alterations, the Shore A hardness in accordance with the ISO 868 standard being preferably higher than 65 Sh A and even more preferably greater than 70 Sh A.
    [9]
    9. A container according to any one of the preceding claims, further comprising an outer layer (15), said inner (10) and outer (15) layers being mutually spaced to form a thermally insulating annular gap (18) sized to allow an operator to rest the hands on said outer layer (15) without getting burnt, said bottom (20) being interposed between said inner (10) and outer (15) layers.
    [10]
    10. Container according to the previous claim, wherein said lower face (51) of said at least one layer of thermally insulating material (50) protrudes with respect to said second layer (15) of said container (1) so as to prevent this last to come into contact with the support surface (S).
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    同族专利:
    公开号 | 公开日
    CH712302B1|2021-04-15|
    AT16005U1|2018-10-15|
    DE202017101452U1|2017-05-24|
    ITUA20161757A1|2017-09-17|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    CH667790A5|1985-10-31|1988-11-15|Kuhn Heinrich Metall|COOKING POT.|
    WO1988003379A1|1986-11-15|1988-05-19|Heinrich Berndes Gmbh|Metal cooking, baking or frying vessel|
    DE29907003U1|1999-04-20|1999-07-15|Hsiao|Non-metallic saucepan used with an electromagnetic hotplate|
    EP1726242B1|2005-05-27|2009-07-22|Schmalz Distributions-Systeme AG|Devive for holding food prepared on plates warm|
    US8602248B2|2011-03-02|2013-12-10|Bose Corporation|Cooking utensil|
    GB2492121A|2011-06-22|2012-12-26|Christopher Lawson|Induction Cookware with polymeric contact surface|
    DE102013006649B4|2013-04-18|2017-01-26|Jochen Hennes|Cookware for making hot food|
    法律状态:
    2020-02-28| AZW| Rejection (application)|
    优先权:
    申请号 | 申请日 | 专利标题
    ITUA2016A001757A|ITUA20161757A1|2016-03-17|2016-03-17|THERMAL CONTAINER FOR FOODS|
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