Sonic drill rod with external surface features
US7806204B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 29, 2008 |
| Grant date | Oct 5, 2010 |
| Priority date | — |
| Expiry date | Feb 10, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Drill rods and systems for use in drilling processes, as well as methods for making and using such drill rods and systems. A drill rod configured for sonic drilling operations can include a cylindrical body having an interior surface and an exterior surface. A first connector may be located on a first end of the cylindrical body and a second connector may be located on a second end of the cylindrical body. The first connector and the second connector can be complementary. The drill rod can include a helical feature and a corresponding helical channel on the exterior surface of the cylindrical body. The helical feature and corresponding helical channel can be configured for moving material displaced during a drilling operation in an axial direction away from one end of the drill rod to the other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.