Skewed inserts for an earth boring cutter
US4161225A · kind A · utility
3Cited by
4References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 2, 1978 |
| Grant date | Jul 17, 1979 |
| Priority date | — |
| Expiry date | Aug 2, 1998 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B10/16
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An insert cutter for earth boring includes a plurality of skewed inserts for contacting the earth formations being bored. At least one annular row of tungsten carbide inserts are positioned in the cutter body. Each insert has an elongated body and a formation contacting head. The elongated body is mounted in a socket in the cutter body and the formation contacting head projects from the cutter body. The inserts are installed on the cutter body such that the inserts axes are angularly offset between one-half to thirty degrees from the rotational axis of the cutter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.