Attack tool
US7320505B1 · kind B1 · utility
68Cited by
116References
20Claims
0Family size
Inventors
Key dates
| Filing date | Aug 11, 2006 |
| Grant date | Jan 22, 2008 |
| Priority date | — |
| Expiry date | Aug 11, 2026 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21C35/1837
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
In one aspect of the invention, an attack tool is disclosed which comprises a wear-resistant base suitable for attachment to a driving mechanism. The wear-resistant base has a shank and a metal segment. A cemented metal carbide segment is bonded to the metal segment and the shank has a wear-resistant surface. The wear-resistant surface has a hardness greater than 60 HRc.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.