US20080050690A1 - Heat packages and methods of their use - Google Patents
Heat packages and methods of their use Download PDFInfo
- Publication number
- US20080050690A1 US20080050690A1 US11/930,657 US93065707A US2008050690A1 US 20080050690 A1 US20080050690 A1 US 20080050690A1 US 93065707 A US93065707 A US 93065707A US 2008050690 A1 US2008050690 A1 US 2008050690A1
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- United States
- Prior art keywords
- heat
- package
- container
- atmosphere
- heat element
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J36/00—Parts, details or accessories of cooking-vessels
- A47J36/24—Warming devices
- A47J36/28—Warming devices generating the heat by exothermic reactions, e.g. heat released by the contact of unslaked lime with water
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24V—COLLECTION, PRODUCTION OR USE OF HEAT NOT OTHERWISE PROVIDED FOR
- F24V30/00—Apparatus or devices using heat produced by exothermal chemical reactions other than combustion
Definitions
- This invention relates generally to heat packages for heating packaged food, use for therapeutic purposes and for heating other materials without using conventional heat sources such as electric energy, gas, oil charcoal etc.
- Packaged food is a widely accepted convenient food delivery system. Consumers' purchase decisions relating to such items are often driven by product convenience, portability, as well as how closely the food product parallels a conventionally prepared food item. Many such conventionally prepared foods are served hot. The emphasis on convenience is readily illustrated by packaged food products of interest to students (‘SNACKABLESTM’), Tuna-to-Go, etc.) as well as those of interest to hunters, campers and employees or personnel at remote locations (sandwiches, freeze-dried foods, dehydrated foods). Packaged food that is subsequently heated during a flight is often used by airlines.
- pre-packaged food is widely utilized by (a) persons in remote or inconveniently located sites, (b) persons in situations not conducive to traditional food storage and preparation and (c) persons to whom the convenience of pre-packaged food is of paramount importance. In many such situations it is often impractical or unsafe to utilize conventional heat sources such as electric, gas or oil heaters or other traditional heating methods.
- Safe materials that generate heat when exposed to atmosphere have been available for some time and are utilized, for example, in heating pads.
- the amount and consistency of heat generated varies depending upon the type of materials used that generate heat due to exothermic reaction, the quantity of the material used, the extent of exposure to atmosphere, etc.
- This invention provides heat packages and heat elements for heating food and other materials and for use as heat pads. This invention also provides for self-contained food packages that can be heated when desired in a safe and efficient manner without the need for conventional heating sources such as stoves, electric heaters and the like.
- the present invention provides a heat package that includes a heat generating element or heat element that generates heat when exposed to atmosphere.
- An insulating material may be placed or juxtaposed to a surface of the heat element to reduce loss of heat to the environment and direct the generated heat toward the object that is desired to be heated.
- one or more air passages or spaces are provided between the heat element and the insulating material.
- a heat-conductive member may be placed on the heat element surface to absorb and evenly distribute heat to an object.
- a fabric or other soft material may be used instead when such heat packages are used on human or animals.
- the heat package may be pre-formed to fit a part of a human or an animal body or any other desired object.
- Straps or other devices may be attached to the heat package to arrange and/or secure the heat package about an object.
- the heat element surfaces to be exposed to atmosphere to generate heat are insulated or protected from atmosphere by a removable material that prevents exposure of the heat element to the atmosphere until its use is desired.
- the heat package may include a number of heat element strips or heat element members arranged in a pattern and placed against a heat conductive material.
- the heat strips may be partially protected from atmosphere by insulating material that prevents at least some of the heat from dissipating to atmosphere during use of the heat package.
- the heat strips may be attached on one or more outer surfaces of the container.
- the heat package includes a container that provides air gaps or passages when placed against a heat element.
- a heat element may be attached to a heat conductive member and wherein all surfaces that are exposed to atmosphere are protected from atmosphere until use.
- FIG. 1 shows a heat package that includes a heat element or a heat generating material and a container that holds the material to be heated.
- FIG. 2 shows a heat package that includes a heat element wrapped around an outer surface of a container.
- FIG. 3 shows a heat package that includes a heat element enclosed in an insulating material.
- FIG. 4 shows an alternative heat package with the heat element surface enclosed in an insulating material.
- FIG. 4A shows the heat package of FIG. 4 with a strap.
- FIG. 5 shows a heat package that includes an insulating member attached to a bottom surface of a heat element.
- FIG. 6 shows a heat package wherein heat element strips are placed against a bottom side of a conductive container.
- FIG. 6A shows heat package with straps attached to a relatively flat heat conductive material.
- FIG. 6B shows a heat package with a strap attached to insulating member protecting heat elements.
- FIG. 7 shows a heat package that includes heat element strips attached to a cover of a heat-conducted container.
- FIG. 8 shows a pattern of heat strips.
- FIG. 9 shows an alternate pattern of heat strips.
- FIG. 10 shows a heat package in which air gaps are provided between a heat conducting member and a heat-generating member.
- FIG. 1 shows a heat package 10 that includes a container 11 that has a bottom 13 and sides 19 a - 19 d .
- the container 11 is adapted to hold edible items or other materials 12 (medical instruments, heat pads etc.) the user desires.
- a cover or lid 14 may be used to seal or hold the material 12 in the container 11 .
- the bottom 13 or the entire container 11 is made from a heat conducting material such as aluminum or another alloy.
- a heat element 17 also referred to herein as the heat generating material that will generate heat when exposed to the atmosphere is placed on the bottom 13 .
- a sealing material or seal 16 placed on the bottom surface 17 a of the heat element 17 seals the surface 13 and any other exposed surface of the heat element 17 , such as sides 17 b from the atmosphere.
- the heat package 10 may be placed in a sealed enclosure 18 , such as a sealed plastic envelope.
- the heat package 10 or multiple such packages can then be placed in a container suitable for shipping and storage, such as a heavy paper box or a metal box (not shown).
- a container suitable for shipping and storage such as a heavy paper box or a metal box (not shown).
- the seal 16 and/or enclosure 18 are removed to expose the heat element 17 to the atmosphere, which initializes heat generation.
- the heat so generated heats the bottom 13 of the container 11 , which heat is conducted to the material 12 through the heat conductive bottom 13 .
- the cover 14 aids in trapping the heat in the container 11 , which further aids in heating the material 12 .
- the cover 14 can be removed to access the heated material 12 from the container 11 .
- the material 12 as noted above may be an edible material or any other material that is desired to be heated.
- FIG. 2 shows a heat package container 15 that includes the heat conducting container 11 having a bottom 13 a and sides 19 a - 19 d .
- a cover 14 encloses the material 12 to be heated in the container 11 .
- a heat element 17 a is placed substantially around the entire outer surface of the container 11 (bottom 13 a and sides 19 a - 19 d ) of the container 11 .
- the heat element 17 a is sealed or protected from the environment by a seal member 18 a .
- the seal member 18 a is removed to expose the heat element 17 a to the atmosphere, thereby allowing the heat element 17 a to generate heat, which conducts through the container 11 to heat the material 12 .
- the heat package 15 may be further enclosed in an outer sealed envelope 16 .
- FIG. 3 shows a heat package 30 having a heat element 32 .
- the heat element 32 is formed or shaped to hold a container of a desired size.
- a removable sealing member or element 34 such as a plastic member, seals the inner surface 33 of the heat element 32 from the atmosphere.
- the outer surface 37 of the heat element 32 is enclosed in an insulating material 38 that seals the outer surface 37 of the heat element 32 from the atmosphere.
- the insulating material 38 is chosen to partially or fully prevent the heat generated by the heat element 32 from radiating to the atmosphere from the outer surface 37 . This arrangement can aid in directing a larger proportion of the generated heat toward the inner surface 33 , thereby aiding the heating of the material 12 placed against the inner surface 33 , thereby providing a more efficient heat transfer system.
- the insulating seal 38 may be made from a stiff material that aids in maintaining the shape of the heat element 32 and allows easy handling of the heat package 30 when heat element 32 is generating heat due to exposure to the atmosphere.
- the insulating material or member 38 may be a molded member. Any suitable material, such as Teflon, or another synthetic material may be used.
- the member 38 may be fixedly attached to the heat element 32 or may be placed in close contact with the heat element 32 .
- the inner seal 34 is removed to expose the inner surface 33 of the heat element 32 to the atmosphere.
- a container similar to container 11 of FIG. 1 carrying the material to be heated is placed inside the package 30 against the heat element 32 .
- the outer dimensions and configuration of the container carrying the material to be heated are made such that atmospheric air remains in contact with at least a portion of the heat element 32 to ensure continued exposure of the heat element 32 to the atmosphere, which will be needed for the heat element 32 to generate the heat.
- the heat package 30 may be enclosed in a sealed enclosure 39 instead of or in addition to using the seal 34 .
- the heat package 30 may be further placed in a container or an enclosure (not shown) for shipping purposes.
- FIG. 4 shows another embodiment of a heat package 40 that includes a heat element 42 whose outer surfaces are enclosed by an insulating material 44 .
- the top surface 42 is not enclosed in an insulating material.
- Air passages 46 are provided between the heat element bottom surface 42 b and the insulating material 44 .
- the heat element 42 along with the insulating material 44 are placed in a sealed enclosure 48 , which is removed to expose the heat element 42 to the atmosphere when it is desired to heat a material.
- a heat-conducting member 49 may be placed on the top surface 42 t of the heat element 42 to provide even heat distribution to a material placed thereon.
- the heat element package 40 is removed from the sealed envelope 48 , thereby exposing the air passages 46 to the atmosphere, which allows the heat element 42 to react with the air and exothermically generate heat.
- the insulating member or material 44 prevents at least a portion of the generated heat from radiating to the atmosphere from the bottom 42 b of the heat element 42 . Such an arrangement aids in directing some amount of the generated heat toward the top surface 42 t of the heat element 42 .
- the material or food to be heated, placed in a suitable container is placed on the top surface 42 t of the heat element 42 or on the top of the heat-conducting member 49 when such a member is utilized.
- the member 49 may be made from any suitable heat conducting metal orallory.
- the material 49 can aid in rapid and even distribution of heat to an object that is placed in contact therewith.
- the insulating member 44 may be made from a stiff or a relatively flexible material.
- the insulating member 44 may be attached to the heat element 42 .
- the heat element 42 is usually a flexible package. If flexible insulating material 44 is used, it can adapt to any desired contour, such as a human or animal body part and can thus be used more easily and efficiently as a heat pad.
- a heat pad that has an insulating member 44 can direct a larger portion of the generated heat toward the body than heat pads that allow heat to dissipate to the atmosphere from surfaces that are not in contact with the body.
- the heat package 40 can be pre-molded into any desired configuration, such as a configuration to fit or wrap around a body part, such as a knee, shoulder, calf, elbow, neck etc.
- a strap or any suitable fastener may be attached to the insulating member ends 44 e to wrap the heat element 42 around the desired object.
- the outer and inner contours of the heat package 40 can be designed or chosen for any particular intended use. The contours may have any shape and dimensions.
- the member 49 may be a fabric or any other material that is suitable for contact with the human body or the object intended to be heated.
- the entire package heat package 40 may be enclosed in a material suitable for heat pad.
- the heat package 40 is enclosed in a sealed package 43 for storage.
- FIG. 4 a shows the insulating member 44 of the heat package of FIG. 4 with straps 49 a and 49 b for attaching the heat package 40 to a body part or another object.
- the strap 49 a has a Velcro-type material 41 a or any other type of locking arrangement, such as a buckle arrangement, or any other suitable arrangement, at its far end 43 a .
- the strap 49 b has a locking arrangement 41 b at its far end 43 b that is compatible with the locking arrangement 41 a .
- the locking arrangement 43 a and 43 b when placed together lock with each other.
- FIG. 5 shows a heat package 50 that includes an insulating member 54 attached to a bottom side 52 b of a heat element 52 .
- the exposed surfaces of the heat element 52 are sealed from the atmosphere with a suitable material 56 .
- the sealing material 56 may enclose the heat package including the insulating member 54 .
- FIG. 6 shows a heat package 60 that includes a container 61 with a number of heat generating element strips or members 62 in contact with its bottom sides 61 b .
- An insulating material 64 may be placed on the bottom 62 b of each heat-generating element 62 .
- the elements 62 may be straight heat strips or of any other desired configuration.
- the package thus described is placed in a sealed enclosure 66 .
- the envelope or sealed enclosure 66 is removed to expose the sides 62 s of the heat elements 62 to the atmosphere, which causes them to generate heat due to exothermic reaction.
- the heat so generated heats the container 61 which is made from heat conducting material, such as aluminum or another suitable material.
- the food or any other material placed in the container 61 can be accessed by removing the cover 65 .
- the insulating material 64 on the bottom sides of the strips 62 aids in directing the heat toward the container 61 .
- the sides 62 s of the strips are at least partially exposed to the atmosphere while their top surface 62 t remains in contact with the container 61 .
- a relatively flat member 67 of any shape and size may be used, as shown in the heat package 60 a of FIG. 6A .
- a package can be wrapped around an object, such as a body part.
- Straps 68 a and 68 b may be attached respectively to opposite ends 67 a and 67 b of the member 67 or in the alternative as shown in FIG. 6B , a strap 68 may be attached to the bottom sides 64 b of the insulating materials 64 .
- the embodiment 70 shown in FIG. 7 conceptually is similar to that of FIG. 6 .
- the heat strips 72 lined on one or more sides with an insulating material 74 are attached to the container cover 75 . Once the material in the container 71 is heated, the cover 75 is removed to expose the material in the container 71 .
- the heat strips 64 may be selectively attached in any configuration to any member that is desired to be heated. The size and shape of the strips is chosen depending upon the object to be heated. Such an arrangement provides great flexibility and uses optimal amount of materials.
- the heat elements may be arranged in any suitable pattern.
- FIG. 8 shows a rectangular matrix pattern wherein heat elements 82 v are placed in a first direction while heat elements 82 v are placed in a second cross direction.
- the elements 82 v and 82 v may be interwoven or placed one on top of the other as shown in FIG. 8 or may have no overlap.
- FIG. 9 shows an angular pattern of heat elements wherein heat elements 92 a are placed on top of elements 92 b .
- the heat elements 92 a and 92 b may be interwoven at an angle.
- the heat elements may also be placed in a non-overlapping manner.
- FIG. 10 shows a heat package 100 that includes a heat-generating element 102 placed or lined inside an insulating liner 106 .
- a container 101 is placed in the heat element enclosure 102 .
- the outside of the container 101 is designed to provide one or more air passages or spaces between the container 101 and the heat element 102 .
- the air passages may be in the form of air channels 104 that run along the sides 101 s of the container 101 and/or air passages or spaces 103 along the bottom 101 b of the container 101 .
- the container 101 is made from a heat conducting material, such as aluminum, copper or another suitable alloy.
- the container 101 placed in the heat-generating element 102 is enclosed in a sealed outer enclosure 108 , such as made from a plastic or a polyurethane material.
- any suitable material can be used for the outer enclosure 108 .
- air flows along the air passages 103 and or 104 that allow the heat element to generate heat.
- the insulating material 106 if used, aids in directing heat toward the container 101 .
- embodiments of the present invention can include heat elements formulated or configured to produce selected amounts of thermal energy.
- the heat element can be configured to heat a material to no greater than a maximum temperature. This may be advantageous, for instance, to prevent a food, such as infant formula, from injuring a child when ingested.
- the heat element can be configured to heat a material at least a minimum temperature, such a temperature at which the material is predicted to have a specified degree of sterilization.
- Other embodiments can include a selected temperature range.
- the heat produced by the heat element can be user selectable.
- a selective removal of the insulating material and thus the selective exposure of the heat element to the atmosphere can produce a corresponding controllable heat generation by the heat element.
- the seal or other material or member covering the heat element can be re-usable, e.g., re-attached to the heat element. This may be advantageous to temporarily or permanently halt the heating process.
Abstract
The present invention provides a heat package wherein a surface of a generating heat element that generates heat when exposed to atmosphere is placed against or attached to a heat conductive member. The heat element is protected from atmosphere until use. The heat package may include a heat-generating element attached to an insulating member with one or more air spaced there between. An outer surface of the heat-generating element can be exposed to atmosphere to produce heat when desired.
Description
- This application is a continuation of U.S. patent application Ser. No. 10/877,328, filed Jun. 25, 2004 which takes priority from U.S. Provisional Patent Application Ser. No. 60/482,726, filed Jun. 26, 2003.
- 1. Field of the Invention
- This invention relates generally to heat packages for heating packaged food, use for therapeutic purposes and for heating other materials without using conventional heat sources such as electric energy, gas, oil charcoal etc.
- 2. Background
- Packaged food is a widely accepted convenient food delivery system. Consumers' purchase decisions relating to such items are often driven by product convenience, portability, as well as how closely the food product parallels a conventionally prepared food item. Many such conventionally prepared foods are served hot. The emphasis on convenience is readily illustrated by packaged food products of interest to students (‘SNACKABLES™’), Tuna-to-Go, etc.) as well as those of interest to hunters, campers and employees or personnel at remote locations (sandwiches, freeze-dried foods, dehydrated foods). Packaged food that is subsequently heated during a flight is often used by airlines. As highlighted by these examples, pre-packaged food is widely utilized by (a) persons in remote or inconveniently located sites, (b) persons in situations not conducive to traditional food storage and preparation and (c) persons to whom the convenience of pre-packaged food is of paramount importance. In many such situations it is often impractical or unsafe to utilize conventional heat sources such as electric, gas or oil heaters or other traditional heating methods.
- Much packaged ready-to-eat food is stored and served at room temperature (ambient temperature) despite the fact that the taste experience would improve materially were the food warmer when consumed. Moreover, consumers would prefer the option of purchasing food both convenient in packaging and easily heated without the need for conventional heating equipment. Such an option can be superior to and different from packaged food items presently available.
- In colder environments increasing food temperature by as few as ten or twenty degrees Fahrenheit may significantly improve the quality of the food's taste. Food products packaged with heat elements designed and placed to heat the food contents to a degree sufficient to improve the perceived taste quality would be desirable for various entities or individuals including the institutional food delivery programs in prisons, hospitals, etc.
- In many other situations, people need access to heat packages designed as comfort and therapeutic elements and in situations requiring responses to pain and/or discomfort due to bodily injury or environmental extremes. The same is true for animals, particularly domesticated animals. Self-generating heat chambers or enclosures can also be used to enclose botanical elements during cold weather. At present there are few self-heating conveniently packaged products addressing these needs, at least some of which lack ergonomic flexibility and are inefficient in heat delivery.
- Safe materials that generate heat when exposed to atmosphere (i.e., by exothermic reaction) have been available for some time and are utilized, for example, in heating pads. The amount and consistency of heat generated varies depending upon the type of materials used that generate heat due to exothermic reaction, the quantity of the material used, the extent of exposure to atmosphere, etc.
- This invention provides heat packages and heat elements for heating food and other materials and for use as heat pads. This invention also provides for self-contained food packages that can be heated when desired in a safe and efficient manner without the need for conventional heating sources such as stoves, electric heaters and the like.
- The present invention provides a heat package that includes a heat generating element or heat element that generates heat when exposed to atmosphere. An insulating material may be placed or juxtaposed to a surface of the heat element to reduce loss of heat to the environment and direct the generated heat toward the object that is desired to be heated. In one aspect, one or more air passages or spaces are provided between the heat element and the insulating material. A heat-conductive member may be placed on the heat element surface to absorb and evenly distribute heat to an object. A fabric or other soft material may be used instead when such heat packages are used on human or animals. The heat package may be pre-formed to fit a part of a human or an animal body or any other desired object. Straps or other devices may be attached to the heat package to arrange and/or secure the heat package about an object. The heat element surfaces to be exposed to atmosphere to generate heat are insulated or protected from atmosphere by a removable material that prevents exposure of the heat element to the atmosphere until its use is desired.
- In another embodiment, the heat package may include a number of heat element strips or heat element members arranged in a pattern and placed against a heat conductive material. The heat strips may be partially protected from atmosphere by insulating material that prevents at least some of the heat from dissipating to atmosphere during use of the heat package. The heat strips may be attached on one or more outer surfaces of the container.
- In another embodiment the heat package includes a container that provides air gaps or passages when placed against a heat element. In another embodiment, a heat element may be attached to a heat conductive member and wherein all surfaces that are exposed to atmosphere are protected from atmosphere until use.
- Examples of the more important features of the invention have been summarized (albeit rather broadly) in order that the detailed description thereof that follows may be better understood and in order that the contributions they represent to the art may be appreciated. There are, of course, additional features of the invention that will be described hereinafter and which will form the subject of the claims appended hereto.
- For detailed understanding of the present invention, reference should be made to the following detailed description of the preferred embodiment, taken in conjunction with the accompanying drawing:
-
FIG. 1 shows a heat package that includes a heat element or a heat generating material and a container that holds the material to be heated. -
FIG. 2 shows a heat package that includes a heat element wrapped around an outer surface of a container. -
FIG. 3 shows a heat package that includes a heat element enclosed in an insulating material. -
FIG. 4 shows an alternative heat package with the heat element surface enclosed in an insulating material. -
FIG. 4A shows the heat package ofFIG. 4 with a strap. -
FIG. 5 shows a heat package that includes an insulating member attached to a bottom surface of a heat element. -
FIG. 6 shows a heat package wherein heat element strips are placed against a bottom side of a conductive container. -
FIG. 6A shows heat package with straps attached to a relatively flat heat conductive material. -
FIG. 6B shows a heat package with a strap attached to insulating member protecting heat elements. -
FIG. 7 shows a heat package that includes heat element strips attached to a cover of a heat-conducted container. -
FIG. 8 shows a pattern of heat strips. -
FIG. 9 shows an alternate pattern of heat strips. -
FIG. 10 shows a heat package in which air gaps are provided between a heat conducting member and a heat-generating member. -
FIG. 1 shows aheat package 10 that includes acontainer 11 that has a bottom 13 and sides 19 a-19 d. Thecontainer 11 is adapted to hold edible items or other materials 12 (medical instruments, heat pads etc.) the user desires. A cover orlid 14 may be used to seal or hold the material 12 in thecontainer 11. The bottom 13 or theentire container 11 is made from a heat conducting material such as aluminum or another alloy. A heat element 17 (also referred to herein as the heat generating material) that will generate heat when exposed to the atmosphere is placed on the bottom 13. A sealing material or seal 16 placed on thebottom surface 17 a of the heat element 17 seals thesurface 13 and any other exposed surface of the heat element 17, such assides 17 b from the atmosphere. Alternatively or in addition to, theheat package 10 may be placed in a sealedenclosure 18, such as a sealed plastic envelope. Theheat package 10 or multiple such packages can then be placed in a container suitable for shipping and storage, such as a heavy paper box or a metal box (not shown). To heat thematerial 12, theseal 16 and/orenclosure 18 are removed to expose the heat element 17 to the atmosphere, which initializes heat generation. The heat so generated heats the bottom 13 of thecontainer 11, which heat is conducted to thematerial 12 through the heatconductive bottom 13. Thecover 14 aids in trapping the heat in thecontainer 11, which further aids in heating thematerial 12. After a period of time, which can be from a few to several minutes, thecover 14 can be removed to access theheated material 12 from thecontainer 11. The material 12 as noted above may be an edible material or any other material that is desired to be heated. -
FIG. 2 shows aheat package container 15 that includes theheat conducting container 11 having a bottom 13 a and sides 19 a-19 d. Acover 14 encloses the material 12 to be heated in thecontainer 11. In the embodiment ofFIG. 2 , aheat element 17 a is placed substantially around the entire outer surface of the container 11 (bottom 13 a and sides 19 a-19 d) of thecontainer 11. Theheat element 17 a is sealed or protected from the environment by aseal member 18 a. To heat thematerial 12, theseal member 18 a is removed to expose theheat element 17 a to the atmosphere, thereby allowing theheat element 17 a to generate heat, which conducts through thecontainer 11 to heat thematerial 12. Theheat package 15 may be further enclosed in an outer sealedenvelope 16. -
FIG. 3 shows aheat package 30 having aheat element 32. Theheat element 32 is formed or shaped to hold a container of a desired size. A removable sealing member orelement 34, such as a plastic member, seals theinner surface 33 of theheat element 32 from the atmosphere. Theouter surface 37 of theheat element 32 is enclosed in an insulatingmaterial 38 that seals theouter surface 37 of theheat element 32 from the atmosphere. The insulatingmaterial 38 is chosen to partially or fully prevent the heat generated by theheat element 32 from radiating to the atmosphere from theouter surface 37. This arrangement can aid in directing a larger proportion of the generated heat toward theinner surface 33, thereby aiding the heating of the material 12 placed against theinner surface 33, thereby providing a more efficient heat transfer system. The insulatingseal 38 may be made from a stiff material that aids in maintaining the shape of theheat element 32 and allows easy handling of theheat package 30 whenheat element 32 is generating heat due to exposure to the atmosphere. The insulating material ormember 38 may be a molded member. Any suitable material, such as Teflon, or another synthetic material may be used. Themember 38 may be fixedly attached to theheat element 32 or may be placed in close contact with theheat element 32. To heat a material (not shown), theinner seal 34 is removed to expose theinner surface 33 of theheat element 32 to the atmosphere. A container, similar tocontainer 11 ofFIG. 1 carrying the material to be heated is placed inside thepackage 30 against theheat element 32. The outer dimensions and configuration of the container carrying the material to be heated are made such that atmospheric air remains in contact with at least a portion of theheat element 32 to ensure continued exposure of theheat element 32 to the atmosphere, which will be needed for theheat element 32 to generate the heat. Theheat package 30 may be enclosed in a sealedenclosure 39 instead of or in addition to using theseal 34. Theheat package 30 may be further placed in a container or an enclosure (not shown) for shipping purposes. -
FIG. 4 shows another embodiment of aheat package 40 that includes aheat element 42 whose outer surfaces are enclosed by an insulatingmaterial 44. In the embodiment shown inFIG. 4 , thetop surface 42 is not enclosed in an insulating material.Air passages 46 are provided between the heatelement bottom surface 42 b and the insulatingmaterial 44. Theheat element 42 along with the insulatingmaterial 44 are placed in a sealedenclosure 48, which is removed to expose theheat element 42 to the atmosphere when it is desired to heat a material. A heat-conductingmember 49 may be placed on thetop surface 42 t of theheat element 42 to provide even heat distribution to a material placed thereon. - Still referring to
FIG. 4 to activate, theheat element package 40 is removed from the sealedenvelope 48, thereby exposing theair passages 46 to the atmosphere, which allows theheat element 42 to react with the air and exothermically generate heat. The insulating member ormaterial 44 prevents at least a portion of the generated heat from radiating to the atmosphere from the bottom 42 b of theheat element 42. Such an arrangement aids in directing some amount of the generated heat toward thetop surface 42 t of theheat element 42. The material or food to be heated, placed in a suitable container, is placed on thetop surface 42 t of theheat element 42 or on the top of the heat-conductingmember 49 when such a member is utilized. Themember 49 may be made from any suitable heat conducting metal orallory. The material 49 can aid in rapid and even distribution of heat to an object that is placed in contact therewith. The insulatingmember 44 may be made from a stiff or a relatively flexible material. The insulatingmember 44 may be attached to theheat element 42. Theheat element 42 is usually a flexible package. If flexible insulatingmaterial 44 is used, it can adapt to any desired contour, such as a human or animal body part and can thus be used more easily and efficiently as a heat pad. A heat pad that has an insulatingmember 44 can direct a larger portion of the generated heat toward the body than heat pads that allow heat to dissipate to the atmosphere from surfaces that are not in contact with the body. Theheat package 40 can be pre-molded into any desired configuration, such as a configuration to fit or wrap around a body part, such as a knee, shoulder, calf, elbow, neck etc. A strap or any suitable fastener may be attached to the insulating member ends 44 e to wrap theheat element 42 around the desired object. The outer and inner contours of theheat package 40 can be designed or chosen for any particular intended use. The contours may have any shape and dimensions. For heat pad type applications themember 49 may be a fabric or any other material that is suitable for contact with the human body or the object intended to be heated. Alternatively, the entirepackage heat package 40 may be enclosed in a material suitable for heat pad. Theheat package 40 is enclosed in a sealedpackage 43 for storage. -
FIG. 4 a shows the insulatingmember 44 of the heat package ofFIG. 4 withstraps heat package 40 to a body part or another object. Thestrap 49 a has a Velcro-type material 41 a or any other type of locking arrangement, such as a buckle arrangement, or any other suitable arrangement, at itsfar end 43 a. Thestrap 49 b has a locking arrangement 41 b at itsfar end 43 b that is compatible with the lockingarrangement 41 a. The lockingarrangement -
FIG. 5 shows aheat package 50 that includes an insulatingmember 54 attached to a bottom side 52 b of aheat element 52. The exposed surfaces of theheat element 52 are sealed from the atmosphere with asuitable material 56. The sealingmaterial 56 may enclose the heat package including the insulatingmember 54. -
FIG. 6 shows aheat package 60 that includes acontainer 61 with a number of heat generating element strips ormembers 62 in contact with itsbottom sides 61 b. An insulatingmaterial 64 may be placed on the bottom 62 b of each heat-generatingelement 62. Theelements 62 may be straight heat strips or of any other desired configuration. The package thus described is placed in a sealedenclosure 66. To use thepackage 60, the envelope or sealedenclosure 66 is removed to expose thesides 62 s of theheat elements 62 to the atmosphere, which causes them to generate heat due to exothermic reaction. The heat so generated heats thecontainer 61 which is made from heat conducting material, such as aluminum or another suitable material. The food or any other material placed in thecontainer 61 can be accessed by removing the cover 65. The insulatingmaterial 64 on the bottom sides of thestrips 62 aids in directing the heat toward thecontainer 61. Thesides 62 s of the strips are at least partially exposed to the atmosphere while their top surface 62 t remains in contact with thecontainer 61. - Instead of using a
container 61, a relativelyflat member 67 of any shape and size may be used, as shown in theheat package 60 a ofFIG. 6A . Such a package can be wrapped around an object, such as a body part.Straps member 67 or in the alternative as shown inFIG. 6B , astrap 68 may be attached to the bottom sides 64 b of the insulatingmaterials 64. - The
embodiment 70 shown inFIG. 7 conceptually is similar to that ofFIG. 6 . The heat strips 72 lined on one or more sides with an insulatingmaterial 74 are attached to thecontainer cover 75. Once the material in thecontainer 71 is heated, thecover 75 is removed to expose the material in thecontainer 71. It should be noted that the heat strips 64 may be selectively attached in any configuration to any member that is desired to be heated. The size and shape of the strips is chosen depending upon the object to be heated. Such an arrangement provides great flexibility and uses optimal amount of materials. - In the embodiments of
FIGS. 6, 6A and 7, the heat elements may be arranged in any suitable pattern.FIG. 8 shows a rectangular matrix pattern whereinheat elements 82 v are placed in a first direction whileheat elements 82 v are placed in a second cross direction. Theelements FIG. 8 or may have no overlap. -
FIG. 9 shows an angular pattern of heat elements whereinheat elements 92 a are placed on top ofelements 92 b. Alternatively, theheat elements -
FIG. 10 shows aheat package 100 that includes a heat-generatingelement 102 placed or lined inside an insulatingliner 106. Acontainer 101 is placed in theheat element enclosure 102. The outside of thecontainer 101 is designed to provide one or more air passages or spaces between thecontainer 101 and theheat element 102. The air passages may be in the form ofair channels 104 that run along thesides 101 s of thecontainer 101 and/or air passages orspaces 103 along the bottom 101 b of thecontainer 101. Thecontainer 101 is made from a heat conducting material, such as aluminum, copper or another suitable alloy. Thecontainer 101 placed in the heat-generatingelement 102 is enclosed in a sealedouter enclosure 108, such as made from a plastic or a polyurethane material. Any suitable material can be used for theouter enclosure 108. When theouter enclosure 108 is removed, air flows along theair passages material 106, if used, aids in directing heat toward thecontainer 101. - It should be understood that embodiments of the present invention can include heat elements formulated or configured to produce selected amounts of thermal energy. For instance, the heat element can be configured to heat a material to no greater than a maximum temperature. This may be advantageous, for instance, to prevent a food, such as infant formula, from injuring a child when ingested. Also, the heat element can be configured to heat a material at least a minimum temperature, such a temperature at which the material is predicted to have a specified degree of sterilization. Other embodiments can include a selected temperature range. In still other embodiments, the heat produced by the heat element can be user selectable. For example, a selective removal of the insulating material and thus the selective exposure of the heat element to the atmosphere can produce a corresponding controllable heat generation by the heat element. Furthermore, in certain embodiments, the seal or other material or member covering the heat element can be re-usable, e.g., re-attached to the heat element. This may be advantageous to temporarily or permanently halt the heating process.
- The foregoing description is directed to particular embodiments of the present invention for the purpose of illustration and explanation. It will be apparent, however, to one skilled in the art that many modifications and changes to the embodiment set for the above are possible without departing from the scope and the spirit of the invention. It is intended that the following claims be interpreted to embrace all such modifications and changes.
Claims (1)
1. A heat package, comprising:
(a) a heat generating element; and
(b) an insulating member juxtaposed on at least a portion of a surface of the heat-generating element.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/930,657 US20080050690A1 (en) | 2003-06-26 | 2007-10-31 | Heat packages and methods of their use |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US48272603P | 2003-06-26 | 2003-06-26 | |
US10/877,328 US7841202B2 (en) | 2003-06-26 | 2004-06-25 | Heat packages and methods of their use |
US11/930,657 US20080050690A1 (en) | 2003-06-26 | 2007-10-31 | Heat packages and methods of their use |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/877,328 Continuation US7841202B2 (en) | 2003-06-26 | 2004-06-25 | Heat packages and methods of their use |
Publications (1)
Publication Number | Publication Date |
---|---|
US20080050690A1 true US20080050690A1 (en) | 2008-02-28 |
Family
ID=33544576
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/877,328 Expired - Fee Related US7841202B2 (en) | 2003-06-26 | 2004-06-25 | Heat packages and methods of their use |
US11/930,657 Abandoned US20080050690A1 (en) | 2003-06-26 | 2007-10-31 | Heat packages and methods of their use |
US12/956,776 Abandoned US20110073099A1 (en) | 2003-06-26 | 2010-11-30 | Heat Packages and Methods of Their Use |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
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US10/877,328 Expired - Fee Related US7841202B2 (en) | 2003-06-26 | 2004-06-25 | Heat packages and methods of their use |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
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US12/956,776 Abandoned US20110073099A1 (en) | 2003-06-26 | 2010-11-30 | Heat Packages and Methods of Their Use |
Country Status (1)
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US (3) | US7841202B2 (en) |
Cited By (1)
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WO2022119730A1 (en) * | 2020-12-02 | 2022-06-09 | Microlin | Flameless energizer for treatment agent |
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US7652228B2 (en) * | 2003-12-16 | 2010-01-26 | Kao Corporation | Steam-generating warming article |
WO2006006653A1 (en) * | 2004-07-14 | 2006-01-19 | Mycoal Products Corporation | Micro-heater and method for manufacture thereof |
US7878187B2 (en) * | 2005-09-23 | 2011-02-01 | Wyeth Llc | Heat cells comprising exothermic compositions having absorbent gelling material |
US7794649B2 (en) * | 2005-09-23 | 2010-09-14 | Wyeth Llc | Method of making heat cells comprising exothermic compositions having absorbent gelling material |
JP5343003B2 (en) * | 2006-08-10 | 2013-11-13 | リチャージャブル バッテリー コーポレイション | Oxygen activated heater and method for producing the same |
BRPI0808998A2 (en) * | 2007-03-20 | 2014-11-11 | Wyeth Corp | DEVICE PROVIDING CONSISTENT SKIN SIDE TEMPERATURE, METHOD TO PROVIDE CONSISTENT SKIN SIDE TEMPERATURE DURING USE, METHOD TO PROVIDE IMPROVED SKIN HEALTH, AND METHOD FOR PROVIDING SKIN PASSURE TEMPERATURE CONTROL. |
US20090071526A1 (en) * | 2007-09-17 | 2009-03-19 | Alloy Surfaces Company, Inc. | Sustained-heat source and thermogenerator system using the same |
CN102098992B (en) | 2008-05-15 | 2013-12-04 | 惠氏有限责任公司 | Portable moist heat system |
SG11201402659PA (en) * | 2011-12-21 | 2014-10-30 | Kao Corp | Heating element and heating implement |
FR2991690B1 (en) * | 2012-06-07 | 2020-02-28 | Laboratoires Genevrier | USE OF A HEATER TO PROMOTE A BIOLOGICAL REACTION |
US10046325B2 (en) | 2015-03-27 | 2018-08-14 | Rechargeable Battery Corporation | Self-heating device for warming of biological samples |
US20160286994A1 (en) | 2015-04-01 | 2016-10-06 | Preston Keith Felty | Disposable sleeve for a container |
USD842658S1 (en) | 2017-02-08 | 2019-03-12 | Shari Lynn Groth | Insulated cup sleeve |
US11258686B2 (en) | 2019-10-30 | 2022-02-22 | Vmware, Inc. | Methods and apparatus for determining low latency network connectivity in computing systems |
NL2031398B1 (en) * | 2022-03-24 | 2023-10-06 | Simeco Holland B V | A vending machine for the dispensing of one or more types of heated and/or cooled food products. |
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Also Published As
Publication number | Publication date |
---|---|
US20040261783A1 (en) | 2004-12-30 |
US7841202B2 (en) | 2010-11-30 |
US20110073099A1 (en) | 2011-03-31 |
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