Devices and systems for reducing cyclical torque on directional drilling actuators
US10968703B2 · kind B2 · utility
24Cited by
3References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 27, 2017 |
| Grant date | Apr 6, 2021 |
| Priority date | — |
| Expiry date | Aug 15, 2037 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B17/1085
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An actuator for use in a directional steering assembly includes an ultrahard insert positioned on a working face. The ultrahard insert is positioned along at least a portion of the perimeter of the working face. The ultrahard insert has a coefficient of friction less than a material of the remainder of the working face.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.