US4887368A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for storing and distributing heat and use thereof
Assignee: INDENTOR AG OBERLINDENBERG 191 CH-9426 WOLFHALDEN
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Filing: 1988-09-01
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Granted: 1989-12-19
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Expires: 2008-09-01
Abstract
Abstract Various devices for providing heat insulation and for storing and distributing heat, more specifically body heat, on the areas of the outer skin are described. The devices are formed of a foam layer or a skin compatible layer, a flexible heat conductive metal layer and another foam layer or the like whereby the flexible heat conductive metal layer is placed between the two foam layers or between a foam layer and a skin compatible layer. The devices may be formed in shapes suitable for use as insoles, plasters, soles of shoes, mats, cushions, and the like.
Inventors
- 👤 Arno Walter Latzke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:19
CPC Classifications
A; A43; A43B; A43B7/00; A43B7/14; A43B7/1405; A43B7/1455; A43B7/146; B; B32; B32B; B32B15/00; B32B15/04; B32B15/046; A43B17/00; A43B7/34; A61; A61F; A61F7/00; A61F7/02; B32B15/20; B32B5/00; B32B5/18; B32B7/00; B32B7/04; B32B7/06; B32B7/12; A61F2007/0001; A61F2007/0039; A61F2007/0047; B32B2266/00; B32B2266/02; B32B2266/0214; B32B2266/025; B32B2266/08; B32B2307/00; B32B2307/30; B32B2307/302; B32B2307/304; B32B2437/00; B32B2437/02
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
161 words
A device for storing and distributing heat on areas of the outer surfaces of human skin, comprising: a pair of closed porous polyethylene foam layers, each having a thickness of from 0.8 to 8 mm; a flexible heat conductive metal layer interposed between said foam layers and having a thickness of 0.02 to 0.08 mm, said metal layer being made of a material selected from the group consisting of aluminum and copper; a skin compatible layer of textile fabric laminated to an entire outer surface of one of said foam layers wherein said skin compatible layer is the top-most layer such that said skin compatible layer comes into direct contact with the skin of the user; and means for attaching the device to the skin; wherein said foam layers are laminated to adhere firmly together; wherein said skin compatible layer is impregnated with a substance which promotes blood circulation when this substance comes into contact with the skin of the user.
Claim 2
Independent Claim
161 words
A device for storing and distributing heat on areas of the outer surfaces of human skin, comprising: a pair of closed porous polyethylene foam layers, each having a thickness of from 0.8 to 8 mm; a flexible heat conductive metal layer interposed between said foam layers and having a thickness of 0.02 to 0.08 mm, said metal layer being made of a material selected from the group consisting of aluminum and copper; a skin compatible layer of textile fabric laminated to an entire outer surface of one of said foam layers wherein said skin compatible layer is the top-most layer such that said skin compatible layer comes into direct contact with the skin of the user; and means for attaching the device to the skin; wherein said foam layers are laminated to adhere firmly together; wherein said skin compatible layer is impregnated with a substance which promotes blood circulation when this substance comes into contact with the skin of the user.
Claim 3
Dependent Claim
16 words
A device as claimed in claim 1, wherein said metal layer is made from aluminum foil.
Claim 4
Dependent Claim
13 words
A device as claimed in claim 1, having the form of a cushion.
Claim 5
Dependent Claim
14 words
A device as claimed in claim 3, wherein said skin-compatible layer is surface texturized.
Claim 6
Dependent Claim
13 words
A device as claimed in claim 1, having the form of a mat.
Claim 7
Dependent Claim
13 words
A device as claimed in claim 1, having the form of a bed-overlay.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-12-18 | 1993-06-19 | 1993-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-12-18 | 1997-06-19 | 1997-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-12-18 | 2001-06-19 | 2001-12-19 | $7700.00 | Window Closed / Lapsed |