Fixed cutter bit with improved diamond filled compacts
US5159857A · kind A · utility
46Cited by
19References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 1, 1991 |
| Grant date | Nov 3, 1992 |
| Priority date | — |
| Expiry date | Mar 1, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S76/12
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
In an improved single piece earth boring bit of the type having a body including a solid bit face on one end and a shank on the opposite end for connection in a drill string, an improved cutting structure having diamond filled compacts used as a wear resistant inserts. The improved compacts have hard metal jackets and integrally formed diamond cores. The improved compacts are advantageously used as wear resistant inserts in the gage and heel rows of the bit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.