Warming blanket having remote safety circuit
US6730887B2 · kind B2 · utility
3Cited by
6References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 10, 2002 |
| Grant date | May 4, 2004 |
| Priority date | — |
| Expiry date | Sep 10, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B2203/02
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
One or more current sensors are mounted externally of a heating member so as to simplify construction of the heating member. The sensors are particularly useful in safety control circuits for heating members using PTC wire as resistance heating elements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.