Tool with a large volume of a superhard material
US7353893B1 · kind B1 · utility
71Cited by
74References
19Claims
0Family size
Inventors
Key dates
| Filing date | Jan 29, 2007 |
| Grant date | Apr 8, 2008 |
| Priority date | — |
| Expiry date | Jan 29, 2027 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B10/5735
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
In one aspect of the invention, a tool has a wear-resistant base suitable for attachment to a driving mechanism and also a hard tip attached to an interfacial surface of the base. The tip has a first cemented metal carbide segment bonded to a superhard material at a non-planar interface. The tip has a height between 4 and 10 mm and also has a curved working surface opposite the interfacial surface. A volume of the superhard material is about 75% to 150% of a volume of the first cemented metal carbide segment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.