Earth-boring tools with primary and secondary blades, methods of forming and designing such earth-boring tools
US8316967B2 · kind B2 · utility
3Cited by
0References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 5, 2008 |
| Grant date | Nov 27, 2012 |
| Priority date | — |
| Expiry date | Oct 31, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49826
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Earth-boring tools comprise a body including a face at a leading end thereof and a shank at a trailing end. At least one primary blade may extend radially outward over the face and may comprise a plurality of cutting elements disposed thereon. At least one secondary blade may also extend radially outward over a portion of the face and the at least one secondary blade may comprise a plurality of cutting elements disposed thereon only over at least a portion of an area of greatest work rate per cutting element. Methods of forming earth-boring tools and methods of designing earth-boring tools are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.