Tool for use on exit side of bore and method of use thereof
US9702207B2 · kind B2 · utility
4Cited by
8References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 2, 2013 |
| Grant date | Jul 11, 2017 |
| Priority date | — |
| Expiry date | Jun 7, 2035 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B19/164
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A tool for making up and breaking out a drill string at an exit side of a bore. The tool includes a fixed vice and a moveable vice for torquing a pipe joint, a roller assembly for threading and unthreading adjacent sections of pipe, and a retainer assembly to retain a detached pipe section. The components of the tool are mounted on a frame, which is pivotally connected to a hydraulic machine such as an excavator. Thus, the tool may be manipulated to remove and add sections of pipe to a drill string remote from the primary horizontal directional drill.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.