Split cone bit
US7320375B2 · kind B2 · utility
30Cited by
26References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 19, 2005 |
| Grant date | Jan 22, 2008 |
| Priority date | — |
| Expiry date | Jan 27, 2026 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B10/22
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A roller cone drill bit and a method for designing thereof. The roller cone drill bit includes a bit body configured to be coupled to a drill string and a journal depending from the bit body. A split roller cone is rotatably attached to the journal. The split roller cone includes an upper section and a lower section. The upper section has a plurality of cutting elements disposed at selected positions thereon. The lower section has a plurality of cutting elements disposed at selected positions thereon. The lower section is able to rotate independently of the upper section.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.