Roller cone disk with shaped compacts
US8307920B2 · kind B2 · utility
1Cited by
24References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 13, 2009 |
| Grant date | Nov 13, 2012 |
| Priority date | — |
| Expiry date | Nov 4, 2030 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B10/12
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An earth boring drill bit that includes a cutting cone with a cutting disk. Compacts are inserted within the disk having a chisel shaped end set flush with the cutting disk periphery. The compact crests and cutting disk periphery form a generally seamless cutting surface. The cutting cone can further include cutting teeth thereon also having flush mounted compacts. The compacts can be made from a material such as cemented carbide, hardfacing, tungsten, tungsten alloys, tungsten carbide and the cutter made from steel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.