Battery switch for downhole tools
US7667942B2 · kind B2 · utility
6Cited by
30References
42Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 13, 2004 |
| Grant date | Feb 23, 2010 |
| Priority date | — |
| Expiry date | Dec 13, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J7/0031
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electrical circuit for a downhole tool may include a battery, a load electrically connected to the battery, and at least one switch electrically connected in series with the battery and to the load. The at least one switch may be configured to close when a tool temperature exceeds a selected temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.