Wear protection on a rock bit
US6564884B2 · kind B2 · utility
15Cited by
7References
26Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 31, 2001 |
| Grant date | May 20, 2003 |
| Priority date | — |
| Expiry date | Jun 4, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T408/81
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Using inserts which are welded in place allows the use of hardfacing in the immediate vicinity of the inserts. Areas of high wear, such as cutting structures and gage areas, can use a combination of ultra-hard inserts with hardfacing for protection against wear. The inserts slows wear, while the hardfacing prevents erosion around the inserts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.