Drilling direction control device
US6769499B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 27, 2002 |
| Grant date | Aug 3, 2004 |
| Priority date | — |
| Expiry date | Jun 27, 2022 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B7/067
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A drilling shaft deflection assembly for a drilling direction control device of the type comprising a rotatable drilling shaft and a housing for supporting a length of the drilling shaft for rotation therein. The deflection assembly is contained within the housing and is axially located between a first support location and a second support location for bending the drilling shaft between the first support location and the second support location. The deflection assembly includes a deflection mechanism for imparting lateral movement to the drilling shaft to bend the drilling shaft, a deflection actuator for actuating the deflection mechanism in response to longitudinal movement of the deflection actuator, and a deflection linkage mechanism between the deflection mechanism and the deflection actuator for converting longitudinal movement of the deflection actuator to lateral movement of the drilling shaft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.