Electric safety valve actuator
US6253843A · kind A · utility
54Cited by
14References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 9, 1997 |
| Grant date | Jul 3, 2001 |
| Priority date | — |
| Expiry date | Dec 9, 2017 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B2200/05
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An electric safety valve actuator for a surface controlled subsurface safety valve. The actuator includes a motor drive and driver selectively coupled with a drive yoke connected to an otherwise conventional flow tube of a downhole safety valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.