Electric heating/warming fabric articles
US7777156B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 7, 2007 |
| Grant date | Aug 17, 2010 |
| Priority date | — |
| Expiry date | Feb 21, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B2203/036
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Electric heating/warming composite fabric articles have at least a fabric layer having inner and outer surfaces, and an electric heating/warming element, e.g., including a bus, formed, e.g., of die cut metallized textile or plastic sheeting or metal foil, affixed at a surface of the fabric layer and adapted to generate heating/warming when connected to a power source. A air-and-water droplet resistant and water vapor permeable barrier layer may be positioned, for example, adjacent to the fabric layer; e.g., with the electric heating/warming element formed thereupon or at least partially impregnated therein, e.g. in a fabric laminate or in a composite formed by application of heat and pressure to at least one layer of a barrier film disposed adjacent thereto, including to protect the electric circuit, e.g. against abrasion, moisture, and or against physical stress due, e.g., to repeated crushing, bending or flexing. Methods of forming electric heating/warming composite fabric articles are described and claimed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.