Nozzle bore for high flow rates
US7040423B2 · kind B2 · utility
3Cited by
11References
58Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 26, 2004 |
| Grant date | May 9, 2006 |
| Priority date | — |
| Expiry date | Nov 14, 2024 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B41/0078
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The present invention relates to a roller cone drill bit that has improved flow characteristics. The roller cone drill bit includes forming at least one relief region inside a bit body of the roller cone drill bit on a ledge formed between a fluid plenum and at least one of the fluid orifices. A method of locating the at least one relief region is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.