Detachable electrical actuator
US8281863B2 · kind B2 · utility
16Cited by
25References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 27, 2009 |
| Grant date | Oct 9, 2012 |
| Priority date | — |
| Expiry date | Feb 7, 2030 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K27/048
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A removable module for actuating elements, such as valves, within a subsea production tree. The module can include a motor, a drive shaft, and a ball screw. Embodiments exist where only the motor is removable, optionally the motor and drive shaft and/or all module elements are removable. A fail safe system is included that moves the production tree element into a pre-designated fail safe position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.