WO2013010192A2

WO2013010192A2 - Heat inhibitor

Info

Publication number: WO2013010192A2
Application number: PCT/ZA2012/000047
Authority: WO
Inventors: Milinda HOLDSWORTH
Original assignee: Holdsworth Milinda
Priority date: 2011-07-08
Filing date: 2012-07-09
Publication date: 2013-01-17
Also published as: WO2013010192A3

Abstract

A heat inhibitor comprising an outer portion comprising a close cell material which is capable of acting as an insulating material which in turn is sandwiched between UVA and UVB reflectors; an inner portion comprising material which is semi-permeable to water and a hydrophilic material; the arrangement being such that in use the heat inhibitor may be located around an object, the hydrophilic material is hydrated and the evaporation of water stored in the hydrophilic material allows the temperature within the heat inhibitor to be maintained thereby allowing reduced heat transfer between the temperature outside of the heat inhibitor and the object located within the heat inhibitor for prolonged periods.

Description

HEAT INHIBITOR This invention relates to heat inhibitors. More specifically, this invention relates to heat inhibitors for use in conjunction with liquid containers including water bottles (canteens) water tanks or any other container capable of housing liquid which requires reduction of heat transfer from the air surrounding the container to the liquid contained with in the container. According to one aspect of the present invention there is provided a heat inhibitor comprising an outer portion comprising a close cell material which is capable of acting as an insulating material which in turn is sandwiched between UVA and UVB reflectors; an inner portion comprising material which is semi-permeable to water and a hydrophilic material; the arrangement being such that in use the heat inhibitor may be located around an object, the hydrophilic material is hydrated and the evaporation of water stored in the hydrophilic material allows the temperature within the heat inhibitor to be maintained thereby allowing reduced heat transfer between the temperature outside of the heat inhibitor and the object located within the heat inhibitor for prolonged periods. Preferably the close cell material is a neoprene. Conveniently a woven material may be located on the outer surface of the outer portion to reduce abrasion and to improve the durability of the heat inhibitor. The woven material may conveniently be dyed or printed in a suitable pattern colour to camouflage the heat inhibitor.

Preferably the heat inhibitor surrounds a water canteen. However, the heat inhibitor may be formed on a larger scale to surround a water tank.

An embodiment of the present invention will now be described by way of illustration with reference to the_ac.companyin.g drawings

In the drawings:

Figure 1 is a front view of a water canteen;

Figure 2 is a front view of a water canteen with a heat inhibiting cover of the present invention enshrouding the body of the canteen;

Figure 3 is a rear view of a water canteen with the heat inhibiting cover of the present invention enshrouding the body of the canteen;

Figure 4 is a front view of a water canteen with the heat inhibiting cover of the present invention in the open situation wherein the water canteen may be removed from the cover; and

Figure 5 is a perspective view of a water canteen with the heat inhibiting cover of the present invention cut along a segment of the heat inhibiting cover allowing a cross-sectional view through the layers forming the heat inhibiting cover. Referring now to Figure 1 there is shown a water canteen 10. The water canteen 10 comprises a body portion 12, a neck portion 14 and a cap portion 16 which is securely fastened by screwing the cap portion on to the neck portion 14. Referring to Figures 2 to 5 there is shown a heat inhibiting cover 20. The heat inhibiting cover 20 is configured and dimensioned to fit around the body portion 12 of the canteen 10. Two flaps 22 are positioned at the top end 24 of the cover 20. The flaps 22 each have a slit .26 near their top portions 2-8 forming buttonholes on the flaps 22. Buttons 30 are attached to the cover 20 which are located so as to be able to pass through the slits 26. By passing the buttons 30 through the buttonholes 26 the flaps 22 are fastened around the shoulders 32 of the canteen 10 thereby removably securing the cover 20 on to the canteen 10. Referring to Figure 5 there is shown a section through the heat inhibiting cover 20. The cover 20 comprising an outer portion 34 which is formed from a closed cell material 36 such as neoprene and two layers of reflective material 38 and 40. The close cell material 36 acts as an insulating barrier, reducing the transfer of heat from the outside through to the portions located on the inner surface of the close cell material 36. A layer of reflective material 38 is located on the inner surface of the closed cell material 36 and a further layer of reflective material 40 is located on the outer surface of the closed cell material 36. The combination of the reflective layers 38 and 40 reduce UVA and UVB rays from passing through the close cell material 36 forming the outer portion 34 and accordingly the outer portion 34 has high insulative properties. The cover 20 further comprises an inner portion 42. A layer of hydrolytic material 44 is located on the inner surface 46 of the outer portion 34. A semi- water permeable layer 48 is located on the inner surface of the hydrolytic material 44. Water or any other hydrating liquid is placed into the canteen 10. The canteen 10 is placed into cover 20. The cover 1.0 is then in turn either dipped into water or water is poured over the cover so that the hydrolytic material becomes saturated with water. The heat inhibiting cover 20 through its composition, has high insulation properties in its outer portion 34 and in conjunction with the inner portion 42, the hydrolytic material 44 and its semi-water permeable layer 48 allows water to be retained in the inner portion for prolonged periods and this water would flow through the semi-water permeable layer 48 onto the outer surface of the canteen 10, thereby keeping the canteen 10 cool, relative to the outside air. A layer of abrasion resistant material 50 such as canvas covers the heat inhibiting cover's 20 outer portion 34. The abrasion resistant material protects the outer portion 34 and further may be printed with a suitable camouflage or other design. This invention is not limited to the precise constructional details is hereinbefore described. The close all material 36 maybe another material having similar or better thermal resistance as compared to neoprene. The fastening means may be by way of other mechanical fasteners including a zipper or hook-and-loop fasteners such as Velcro.

Claims

1. A heat inhibitor comprising an outer portion comprising a close cell material which is capable of acting as an insulating material which in turn is sandwiched between UVA and UVB reflectors; an inner portion comprising material which is semi-permeable to water and a hydrophilic material; the arrangement being such that in use the heat inhibitor may be located around an object, the hydrophilic material is hydrated and the evaporation of water stored in the hydrophilic material allows the temperature within the heat inhibitor to be maintained thereby allowing reduced heat transfer between the- temperature outside of the heat inhibitor and the object located within the heat inhibitor for prolonged periods.

2. A heat inhibitor as claimed in claim 1 wherein the close cell material is a

neoprene.

3. A heat inhibitor as claimed in claims one or two wherein a woven material may be located on the outer surface of the outer portion to reduce abrasion and improve the durability of the heat inhibitor.

4. The woven material as claimed in claim 3 is dyed or printed in a suitable

pattern colour to camouflage the heat inhibitor.

5. A heat inhibitor as claimed in any of the preceding claims which is capable of surrounding a water canteen.

6. A heat inhibitor as claimed in claim 1, 2 or 3 which is sufficiently large to surround a water tank.