Rotary rock bit with improved diamond-filled compacts
US5248006A · kind A · utility
70Cited by
20References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 7, 1992 |
| Grant date | Sep 28, 1993 |
| Priority date | — |
| Expiry date | May 7, 2012 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B10/56
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
In an improved earth boring bit of the type having one or more rotable cones secured to bearing shafts, 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 gage and heel row compacts when inserted in mating recesses provided on the exteriors of the rotatable cones.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.