Insulating blocks and methods for installation in insulated conductor heaters
US8502120B2 · kind B2 · utility
23Cited by
365References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 8, 2011 |
| Grant date | Aug 6, 2013 |
| Priority date | — |
| Expiry date | Jul 5, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49083
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An insulated conductor heater may include an electrical conductor that produces heat when an electrical current is provided to the electrical conductor. An electrical insulator at least partially surrounds the electrical conductor. The electrical insulator comprises a resistivity that remains substantially constant, or increases, over time when the electrical conductor produces heat. An outer electrical conductor at least partially surrounds the electrical insulator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.