Bi-steel percussive drill rod
US7900719B2 · kind B2 · utility
9Cited by
12References
21Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 21, 2009 |
| Grant date | Mar 8, 2011 |
| Priority date | — |
| Expiry date | Jun 24, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49826
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A drill rod includes a first end section, a mid-section, wherein the first end section and the mid-section are connected and wherein the first end section is manufactured using different steel than is used for the mid-section. Such a configuration can reduce the costs associated with forming a drill rod while maintaining the functionality of such a drill rod.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.