Increased projection for compacts of a rolling cone drill bit
US7011170B2 · kind B2 · utility
3Cited by
8References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 22, 2003 |
| Grant date | Mar 14, 2006 |
| Priority date | — |
| Expiry date | Apr 10, 2024 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B10/16
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An earth boring bit has rolling cones rotatably mounted to the bit legs. Each cone has conical bands extending around the exterior. Holes are formed in each of the bands. Compacts are press-fitted into the holes, each having a cutting tip that projects from the conical band. Flats are formed in the conical bands, each flat extending between adjacent compacts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.