Insulated conductor temperature limited heaters
US8224164B2 · kind B2 · utility
49Cited by
865References
66Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 24, 2003 |
| Grant date | Jul 17, 2012 |
| Priority date | — |
| Expiry date | Mar 6, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B2214/03
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A heater may include an electrical conductor. Applying alternating current to the electrical conductor may resistively heat the electrical conductor. The electrical conductor may include an electrically resistive ferromagnetic material. The ferromagnetic material may at least partially surround a non-ferromagnetic material. The heater may provide a reduced amount of heat above or near a selected temperature. An electrical insulator may at least partially surround the electrical conductor. A sheath may at least partially surround the electrical insulator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.