Lower stabilizing arm for a drilling rig
US10294739B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 8, 2016 |
| Grant date | May 21, 2019 |
| Priority date | — |
| Expiry date | Nov 8, 2036 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L1/207
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A lower stabilizing arm for stabilizing tubulars for stabbing to the threaded connections of a drill string on drilling rigs. The lower stabilizing arm comprises a bracket and an upper arm having an upper end and a lower end. An upper pair of axially opposed rotary actuators connects the upper end of the upper arm to the bracket. A lower arm is provided having an upper end and a lower end. A central rotary actuator is connected between the lower end of the upper arm and the upper end of the lower arm. A roller bracket is provided having a pair of v-shaped rollers mounted on the roller bracket. A lower pair of axially opposed rotary actuators connects the second end of the lower arm to the roller bracket.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.