Conductor-in-conduit temperature limited heaters
US7121341B2 · kind B2 · utility
196Cited by
795References
46Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 24, 2003 |
| Grant date | Oct 17, 2006 |
| Priority date | — |
| Expiry date | Mar 27, 2024 |
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 generate 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. A conduit may at least partially surround the electrical conductor. A centralizer may maintain a separation distance between the electrical conductor and the conduit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.