Drilling machine having a movable rod handling device and a method for moving the rod handling device
US7347285B2 · kind B2 · utility
19Cited by
12References
35Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 29, 2004 |
| Grant date | Mar 25, 2008 |
| Priority date | — |
| Expiry date | Nov 25, 2025 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B7/02
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A drilling machine including a frame, a tower, a rotary head, and a rod handling device. The frame is supported for movement over the ground and the tower is mounted on the frame. The rotary head is movable along the tower and is engageable with the drill string for rotating the drill string. The rod handling device is movable along the tower and operable to selectively support the drill string. The rod handling device is biased to a first position along the tower.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.