Apparatuses and methods for adjusting temperatures within shoes
The present disclosure generally pertains to apparatuses and methods for cooling and/or heating feet. In accordance with one exemplary embodiment of the present disclosure, a medium transfer apparatus is inserted into and/or coupled to a shoe. The apparatus has an inlet that can be detachably coupled to a medium injection apparatus, such as a conventional spray can, that injects compressed air or some other cooling medium through the medium transfer apparatus into an interior region of the shoe. Thus, by injecting the cooling medium into the shoe, a user is able to cool his foot without removing his foot from the shoe. In one embodiment, the cooling medium is directed to an insole of the shoe such that the insole is significantly cooled by the cooling medium being injected into the shoe. The cooled insole continues to draw heat from the user's foot and the user continues to feel a cooling sensation long after the cooling medium injection has ended.
This Application claims priority to U.S. Provisional Application No. 60/831,534, entitled “Apparatuses and Methods for Cooling Feet within a Shoe,” and filed on Jul. 18, 2006, which is incorporated herein by reference.
RELATED ARTA shoe typically provides a finite amount of insulation that traps at least some body heat within the shoe, and a foot placed within a shoe may become heated by trapped body heat or by heat emanating from other sources. Depending on various factors, such as atmospheric temperatures, such heating may cause some discomfort to a user. Moreover, at times, a user may desire to cool one or more of his feet by removing one or more shoes at least temporarily.
However, cooling one's feet by temporarily removing a shoe can be burdensome or problematic. For example, an athlete competing in an athletic event, such as a football, basketball, or tennis event, may not have sufficient time during a break to remove and then re-don his shoe before play resumes. Indeed, an athlete's shoe is sometimes taped to his foot making it particularly difficult and time consuming to remove a shoe. In addition, non-athletes may also find it burdensome or impractical in at least some circumstances to cool one's feet by temporarily removing shoes for a brief time period.
Some shoes provide for ventilation to allow air within the shoe to be replaced by air external to the shoe. Although ventilation can assist in reducing temperatures within the shoe under certain circumstances, such temperatures may nevertheless remain at undesirably high levels. Further, in some instances, ventilation can actually exacerbate the aforedescribed heating problems. In this regard, temperatures close to some floor or ground surfaces, such as tennis courts or other athletic playing surfaces, can reach extremely high levels, such as 120 degrees Fahrenheit (F) or more. In such an environment, the temperature of the air entering the shoe can be greater than that of the air exiting the shoe such that ventilation actually results in warming rather than cooling.
Better techniques for enabling users to cool their bodies and, in particular, their feet are generally desirable.
The disclosure can be better understood with reference to the following drawings. The elements of the drawings are not necessarily to scale relative to each other, emphasis instead being placed upon clearly illustrating the principles of the disclosure. Furthermore, like reference numerals designate corresponding parts throughout the several views.
The present disclosure generally pertains to apparatuses and methods for cooling and/or heating feet. In accordance with one exemplary embodiment of the present disclosure, a medium transfer apparatus is inserted into and/or coupled to a shoe. The apparatus has an inlet that can be detachably coupled to a medium injection apparatus, such as a conventional spray can, that injects compressed air or some other cooling medium through the medium transfer apparatus into an interior region of the shoe. Thus, by injecting the cooling medium into the shoe, a user is able to cool his foot without removing his foot from the shoe.
In one embodiment, the cooling medium is directed to an insole of the shoe such that the insole is significantly cooled by the cooling medium being injected into the shoe. The cooled insole continues to draw heat from the user's foot and the user continues to feel a cooling sensation long after the cooling medium injection has ended.
In the embodiment depicted by
As shown by
A width (w3) of the base 68 is about 10 inches, and a length (l3) of the base 68 is about 2½ inches. In
The bead 55 forms the outer perimeter of both the base 68 and inlet 69. Further, each layer 52 and 53 is composed of polyvinyl chloride (PVC) and is about 0.006 inches thick. In addition, the material of the apparatus 50 is flexible. However, in other embodiments, other types of material, including flexible and/or inflexible material, as well as porous and/or non-porous, may be used, and other dimensions are possible.
In one embodiment, the apparatus 50 is inserted into a shoe, and the inlet 69 is positioned such that end 72 is exposed and conveniently accessible to a user.
In one exemplary embodiment, the base 68 of the medium transfer apparatus 50 is positioned between the outsole 84 and the insole 85, as depicted by
When desired, a user may cool his foot by interfacing a medium injection apparatus 110 with the exposed end 72 of inlet 69 and then using the apparatus 110 to inject a cooling medium, such as compressed air or oxygen, into the cavity 63 of the medium transfer apparatus 50. The cooling medium is forced through the apertures 66 in the upper layer 52 of the apparatus 50 and strikes the insole 85 lowering the temperature of the insole 85. Lowering the temperature of the insole 85 helps to draw heat from the user's foot thereby cooling the user's foot. Further, some of the cooling medium may be forced around the edges of the insole 85 into the region between the vamp 86 and the insole 85. Such medium may strike the user's foot further cooling the user's foot. Moreover, injecting the cooling medium into the shoe 81 may provide the user with an immediate cooling sensation as well as significantly lower the temperature of the insole 85 for a relatively long period of time (e.g., several minutes) so that the user continues to feel a cooling sensation long after the injection.
The material of the apparatus 50 is flexible in at least one embodiment. In such an embodiment, there may be no space between the upper and lower layers 52 and 53 when medium is not being injected into the apparatus 50. When medium is injected into the apparatus 50, the medium will slightly separate portions of the upper layer 52 from the lower layer 53 as the medium travels through the apparatus 50.
In one exemplary embodiment, as shown by
In the embodiment depicted by
In the instant embodiment, the cooling medium exiting the can 121 passes through a hollow tip 126 of the nozzle 125. The inner wall of the tip 126 fits snugly around the straw 131 such that frictional forces help to keep the straw 131 coupled to the tip 126 and such that medium exiting through the nozzle 125 preferably does not escape between the straw 131 and tip 126. In another example, the inner wall of the straw 131 may be dimensioned to snugly fit around the tip 126.
In addition, the width of the throat 77 is slightly larger than that of the straw 131 such that the straw 131 can be inserted into the inlet 69 through the slit 79 and pass into the throat 77, as shown by
In the embodiment shown by
In one exemplary embodiment, the cooling medium that is within the apparatus 110 and injected into the shoe 81 by the apparatus 110 is compressed air. The temperature of the cooling medium compressed at about 160-180 psi can be very low, such as close to or below freezing (i.e., 32 degrees F.) upon exiting the spray can 121. Thus, the cooling medium being injected into the shoe 81 in the instant example is likely significantly colder than the interior region of the shoe 81 prior to the injection. Accordingly, injection of the cooling medium within the shoe 81, as described herein, has a significant effect to the temperatures within the shoe 81 and provides the user with a significant cooling sensation.
In fact, injecting the cooling medium into the shoe 81, as described above, for only a short time, such as a few seconds, can have a significant and prolonged impact to the temperatures within the shoe 81. In particular, the insole 85, which is struck directly by the cooling medium in the instant example, can be significantly cooled such that its temperature remains significantly below its original temperature (i.e., its temperate prior to the cooling medium injection) for a prolonged period (e.g., about ten minutes or more) without another injection. Accordingly, an athlete, such as a tennis or football player, may make an injection during a short break in play, yet the effects of the injection may linger well after play has resumed.
In another exemplary embodiment, the medium transfer apparatus 50 is positioned on the upper surface 88 of the insole 85, similar to the embodiment depicted by
As described above, the medium transfer apparatus 50 may be inserted into the shoe 81 after the shoe 81 has been manufactured, such as by removing the insole 85, inserting the apparatus 50, and inserting the insole 85 back into the shoe 81. In other embodiments, the apparatus 50 may be built-in such that it is inserted into the shoe 81 during manufacturing. For example,
In addition, in several of the embodiments described above, the width of the straw 131 has been described as being smaller than the width of the inlet 69 and, in particular, the throat 77 of the inlet 69. However, it is possible for the width of the straw 131 to be greater than the width of the inlet 69. As an example, the end 72 of the inlet 69 could be composed of a rigid material having an outer periphery slightly smaller than the inner periphery of the straw 131. In such an embodiment, the medium injection apparatus 110 could be interfaced with the medium transfer apparatus 50 by inserting the end 72 into the straw 131 such that the straw 131 fits snugly around the end 72. Various other techniques for interfacing the medium transfer apparatus 50 with the medium injection apparatus 50 would be apparent to one of ordinary skill in the art upon reading this disclosure.
In some embodiments described above, the medium transfer apparatus 50 is composed of flexible material. However, the apparatus 50 may be composed of inflexible material or a combination of flexible and inflexible material. For example, the inlet 69 may be composed of a rigid material, such as a rigid plastic material, and the base 68 may be composed of a flexible material. In another example, the end 72 may be covered by a hollow and rigid tip (not shown). Such a rigid tip may facilitate interfacing of the apparatuses 50 and 110.
Note that the apparatus 50 may be positioned differently in other yet embodiments. For example, the base 68 of the apparatus 50 may be embedded within the insole 85. In such an embodiment, the insole 85 may have a hole (not shown) for allowing the inlet 69 to pass out of the insole 85, or the inlet 69 may be an integral component of the insole 85. If the inlet 69 passes through a hole in the insole 85, such a hole may be large enough to allow the injected medium to exit the insole 85, or the insole 85 may have additional holes for allowing the injected medium to exit. In addition, the layers 52 and 53 may be composed of a material similar to that of the insole 85 so that the apparatus 50 can replace the conventional insole 85 or be used in lieu of the conventional insole 85.
It should be emphasized that in any of the embodiments described above, the nozzle 125 may be interfaced directly with the medium transfer apparatus 50 without the use of a straw 131. For example, in the embodiment depicted by
An exemplary use and operation of a medium transfer apparatus 50 will be described in detail hereinbelow with particular reference to
Assume that a user of the shoe 81 shown by
At some point, the user may desire to use the apparatus 50 for cooling his foot. For example, the user may be an athlete, such as a football player, and desire to use the apparatus 50 for cooling his foot after coming to the sideline during a football game. In another example, the user may be a tennis player and desire to use the apparatus 50 to cool his foot during a break between sets.
To cool his foot, the user interfaces the medium injection apparatus 110 with the inlet 69 so that the cooling medium in the apparatus 110 can be injected into the medium transfer apparatus 50 through the inlet 69, as shown by block 215 of
The user then operates the medium injection apparatus 110 such that cooling medium within the apparatus 110 is injected into the medium transfer apparatus 50, as shown by block 221 of
The duration of the injection may be for any time period, and the user may make more than one injection, if desired. Generally, the longer that cooling medium is injected into the shoe 81 via apparatus 50, the greater is the cooling effect to the user's foot and to the insole 85. In one example, the user maintains an injection for about 5 to 10 seconds. Such a duration, at the exemplary pressures described above for the instant example, can provide a significant cooling effect. Indeed, the insole 85 may remain below its original temperature (i.e., its temperature prior to the injection) for several minutes after the injection has ended. Moreover, the insole 85 may continue cooling the user's foot long after the injection has ended. Eventually, heat from the user's foot and/or other sources may raise the temperature of the insole 85 back to its original temperature, but at any time, the user may perform another injection to again cool his foot and the insole 85, as described above.
After performing at least one injection, the user decouples the medium injection apparatus 110 from the medium transfer apparatus 50, as shown by block 225, so that the medium injection apparatus 110 does not interfere with the user's activities. In the instant example, the user can decouple the medium injection apparatus 110 from the medium transfer apparatus 50 by simply pulling the straw 131 out of the inlet 69.
There are various methods that can be used to manufacture the medium injection apparatus 50. One exemplary method will be described in more detail hereinbelow with particular reference to
Initially, two sheets of material for forming the layers 52 and 53 are provided, as shown by block 311 of
One of the sheets is then overlaid with the other sheet, such that one of the sheets-is positioned on top of the other sheet, as shown by block 316 of
Once the bead 55 has been formed, the bead 55 and the sheet material within the perimeter of the bead 55 are separated from the remainder of the sheet material to provide the apparatus 50 depicted in
The above embodiments have been described as injecting a medium for cooling a user's foot. In other examples, the injection medium apparatus 110 may contain a heated medium, which can be injected into the shoe 81 according to the same or similar techniques described above for injecting a cooling medium so that the user's foot and/or the insole 85 can be warmed instead of cooled.
Additionally, it should be emphasized that the aforedescribed embodiments of the medium transfer apparatus 50 and the medium injection apparatus 110 are exemplary, and other configurations of the apparatuses 50 and 110 are possible without departing from the principles of the present disclosure. In addition, the shoe 81 depicted above is also exemplary, and apparatuses 50 and 110 may be used with other types of known or future-developed shoes in other embodiments. Further, the method of manufacturing an exemplary medium transfer apparatus 50 is described above for illustrative purposes, and other methods of manufacturing a medium transfer apparatus 50 are possible.
Claims
1. A shoe, comprising:
- a vamp;
- an outsole;
- an insole positioned between the outsole and the vamp; and
- a medium transfer apparatus positioned between the insole and the outsole, wherein the medium transfer apparatus is detachably coupled to a medium injection apparatus containing a medium such that the medium is forced by the medium injection apparatus through the medium transfer apparatus thereby altering a temperature of the insole.
2. The shoe of claim 1, wherein the medium is composed of a refrigerant.
3. The shoe of claim 1, wherein the medium injection apparatus is external to the shoe.
4. The shoe of claim 1, wherein the medium transfer apparatus is composed of polyvinyl chloride.
5. The shoe of claim 1, wherein the medium is stored in the medium transfer apparatus at a pressure greater than 100 pounds per square inch.
6. The shoe of claim 1, wherein a portion of the medium injection apparatus is inserted into the medium transfer apparatus.
7. The shoe of claim 1, wherein the medium transfer apparatus has a first layer and a second layer, the first layer having at least one aperture, the first and second layers being melded together along a bead defining a cavity between the first and second layers, the bead defining an inlet, wherein the medium is forced by the medium injection apparatus into the cavity via the inlet and passes through the at least one aperture.
8. The shoe of claim 1, wherein the medium transfer apparatus has an inlet for receiving a portion of the medium injection apparatus, the inlet having a tab and a throat, the tab having a width greater than a width of the throat.
9. The shoe of claim 1, wherein the medium transfer apparatus has a surface having at least one aperture, the surface contacting the insole such that the medium passes through the at least one aperture and strikes the insole.
10. The shoe of claim 1, wherein the medium injection apparatus comprises a spray can.
11. The shoe of claim 10, wherein the medium injection apparatus comprises a straw coupled to the spray can.
12. A medium transfer apparatus for insertion into a shoe, comprising:
- a first layer having at least one aperture; and
- a second layer, the first and second layers being melded together along a bead defining a cavity between the first and second layers, the bead defining an inlet, wherein a medium injected into the cavity via the inlet passes through the at least one aperture.
13. A shoe, comprising:
- a vamp;
- an outsole; and
- a medium transfer apparatus positioned between the outsole and the vamp, the medium transfer apparatus having an exposed inlet for interfacing with a medium injection apparatus such that a medium from the medium injection apparatus can be injected through the medium transfer apparatus thereby altering a temperature within the shoe.
14. The shoe of claim 13, wherein the medium transfer apparatus is detachably coupled to the medium injection apparatus, the medium injection apparatus containing the medium at a pressure greater than atmospheric pressure.
15. The shoe of claim 14, wherein the medium is composed of a refrigerant.
16. A method, comprising the steps of:
- detachably coupling a medium injection apparatus to a medium transfer apparatus that is positioned within a shoe, the medium injection apparatus having a medium that is compressed at a pressure greater than atmospheric pressure; and
- injecting the medium from the medium injection apparatus through the medium transfer apparatus.
17. The method of claim 16, wherein the medium is composed of a refrigerant.
18. The method of claim 16, wherein the medium transfer apparatus has a first layer and a second layer, the first layer having at least one aperture, the first and second layers being melded together along a bead defining a cavity between the first and second layers, the bead defining an inlet, wherein the injecting step causes the medium to pass into the cavity via the inlet and to pass through the at least one aperture.
19. The method of claim 16, wherein the medium transfer apparatus has an inlet, and wherein the detachably coupling step comprises the step of inserting a portion of the medium transfer apparatus into the medium injection apparatus.
20. The method of claim 16, wherein the detachably coupling step comprises the step of interfacing a portion of the medium injection apparatus with an exposed inlet of the medium transfer apparatus.
21. The method of claim 16, wherein the medium injection apparatus comprises a straw and a spray can having a nozzle connected to the straw, and wherein the detachably coupling step comprises the step of inserting the straw through an inlet of the medium transfer apparatus.
22. The method of claim 16, wherein the medium is compressed within the medium injection apparatus at a pressure greater than 100 pounds per square inch.
23. The method of claim 16, wherein the injecting step causes the medium to strike an insole within the shoe.
24. The method of claim 16, wherein the medium injection apparatus comprises a spray can.
25. The method of claim 16, wherein the detachably coupling step comprises the step of inserting a portion of the medium injection apparatus through an inlet of the medium transfer apparatus.
26. The method of claim 25, wherein the inlet has a tab and throat, the tab having a width greater than a width of the throat, wherein the inserting step is performed such that the portion of the medium injection apparatus passes through an opening in the inlet and into the throat.
27. The method of claim 16, further comprising the step of positioning the medium transfer apparatus between an insole and an outsole of the shoe.
28. The method of claim 27, wherein the medium transfer apparatus has a surface, the surface having at least one aperture, wherein the positioning step is performed such that the surface contacts the insole.
29. A method, comprising the steps of:
- interfacing a spray can with a medium transfer apparatus contacting a shoe, the spray can containing a medium compressed at a pressure greater than atmospheric pressure; and
- injecting the medium from the spray can through the medium transfer apparatus and into the shoe.
30. The method of claim 29, wherein the medium is composed of a refrigerant.
31. The method of claim 29, wherein the medium transfer apparatus is positioned between an insole and an outsole of the shoe during the injecting step.
32. The method of claim 31, wherein the injected medium strikes the insole.
33. The method of claim 32, wherein the medium transfer apparatus has a surface, the surface having at least one aperture and contacting the insole.
34. The method of claim 32, wherein the medium is compressed at a pressure greater than 100 pounds per square inch.
Type: Application
Filed: Sep 21, 2006
Publication Date: Jan 24, 2008
Inventor: Samuel C. Vickroy (Madison, AL)
Application Number: 11/525,214
International Classification: A43B 7/02 (20060101); A43B 7/06 (20060101);