Slip grip drilling tool
US7484573B2 · kind B2 · utility
0Cited by
3References
37Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 21, 2005 |
| Grant date | Feb 3, 2009 |
| Priority date | — |
| Expiry date | Apr 9, 2026 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B7/062
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A directional drilling apparatus for mounting a drill bit on a rotatable drill support comprises a member for transmitting rotation from the drill support to a drill bit, and a body mounted to the member. The body is configurable to offset a portion of the member relative to an axis of the body such that directional drilling may be achieved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.