Cutting elements for earth-boring tools, earth-boring tools including such cutting elements, and methods of forming such cutting elements for earth-boring tools
US8807247B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 21, 2011 |
| Grant date | Aug 19, 2014 |
| Priority date | — |
| Expiry date | Nov 8, 2032 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B10/5735
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Cutting elements for use with earth-boring tools include a cutting table having at least two sections where a boundary between the at least two sections is at least partially defined by a discontinuity formed in the cutting table. Earth-boring tools including a tool body and a plurality of cutting elements carried by the tool body. The cutting elements include a cutting table secured to a substrate. The cutting table includes a plurality of adjacent sections, each having a discrete cutting edge where at least one section is configured to be selectively detached from the substrate in order to substantially expose a cutting edge of an adjacent section. Methods for fabricating cutting elements for use with an earth-boring tool including forming a cutting table comprising a plurality of adjacent sections.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.