Heater for electric blanket
US6689989B2 · kind B2 · utility
13Cited by
11References
24Claims
0Family size
Inventors
Key dates
| Filing date | Mar 18, 2002 |
| Grant date | Feb 10, 2004 |
| Priority date | — |
| Expiry date | Mar 18, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B2203/017
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electric blanket connectable to a power source is provided. The electric blanket includes first and second heating wires connected in series and a monitoring wire positioned therebetween. The monitoring wire is engageable with at least one of the heating wires in response to a predetermined temperature. The cutout interconnects the heating wires to a power source. A monitoring circuit triggers the cutout so as to disconnect the heating wires from the power source in response to engagement of the monitoring wire with one of the heating wires.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.