IP Library Granted Patent US 7,273,490
Granted Patent B2
US 7,273,490 · App. 11/147,707 · Granted Sep 25, 2007

Heat wick for skin cooling

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Quick Facts
Patent No.
US 7,273,490
App. No.
11/147,707
Granted
Sep 25, 2007
Kind
B2
Abstract

Steady-state cooling of the skin is achieved by a support surface without requiring external power or circulation of air. Heat is transferred from via a thermally conductive layer or layers of material(s) that are soft, pliable, and comfortable to sit or lie on. The layer is connected to conductive materials that transport heat and diffuse the heat to a cooler environment.

Claims (22)

1. A thermally conductive support surface, comprising:

(a) a cushion having a generally planar surface, said generally planar surface comprising a first set of thermally conductive fibers; and

(b) a thermal diffuser comprised of a second set of thermally conductive fibers that thermally communicates with said first set of thermally conductive fibers, wherein said thermal diffuser extends beyond said generally planar surface, wherein said thermal conductivity of said cushion is greater than eight (8) watts per meter-degree Kelvin.

2. The thermally conductive support surface as described in claim 1 , wherein said cushion is centrally disposed within said thermally conductive support surface, and said diffuser is present on a periphery of said thermally conductive support surface.

3. The thermally conductive support surface as described in claim 1 , wherein said thermally conductive fibers of said cushion comprises carbon fiber.

4. The thermally conductive support surface as described in claim 1 , wherein said diffuser comprises carbon fiber.

5. The thermally conductive support surface as described in claim 3 , wherein said diffuser comprises carbon fiber.

6. The thermally conductive support surface as described in claim 1 , wherein a fluid is forced past said diffuser, and said fluid removes heat from said diffuser.

7. The thermally conductive support surface as described in claim 1 , wherein said diffuser extends beyond an edge of said cushion.

8. The thermally conductive support surface as described in claim 1 , wherein said diffuser has a surface that is opposite said generally planar surface, and wherein said diffuser extends beyond an edge of said surface that is opposite said generally planar surface.

9. A thermally conductive support surface, comprising:

(a) a cushion having a generally planar surface, said generally planar surface comprising a first set thermally conductive fibers;

(b) a thermal diffuser comprised of a second set of thermally conductive fibers that thermally communicates with said first set of thermally conductive fibers, wherein said thermal diffuser extends beyond said generally planar surface, wherein said thermal conductivity of said cushion is greater than eight (8) watts per meter-degree Kelvin; and

(c) a powered cooling device that thermally communicates with said thermal diffuser.

10. The thermally conductive support surface as described in claim 9 , wherein said cushion is centrally disposed within said thermally conductive support surface, and said diffuser is present on a periphery of said thermally conductive support surface.

11. The thermally conductive support surface as described in claim 9 , wherein said thermally conductive fibers of said cushion comprises carbon fiber.

12. The thermally conductive support surface as described in claim 9 , wherein said diffuser comprises carbon fiber.

13. The thermally conductive support surface as described in claim 11 , wherein said diffuser comprises carbon fiber.

14. The thermally conductive support surface as described in claim 9 , wherein a fluid is forced past said diffuser, and said fluid removes heat from said diffuser.

15. The thermally conductive support surface as described in claim 9 , wherein said diffuser extends beyond an edge of said cushion.

16. The thermally conductive support surface as described in claim 9 , wherein said has a surface that is opposite said generally planar surface, and wherein said diffuser extends beyond an edge of said surface that is opposite said generally planar surface.

17. The thermally conductive support surface as described in claim 9 , wherein said powered cooling device is thermo-electric.

Continuity (2)
Provisional Application 6057776500 · Jun 8, 2004
Related Publication 20050288749A1 · Dec 29, 2005