Hard material insert for a drill and a drill with the hard material insert
US7735585B2 · kind B2 · utility
3Cited by
1References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 20, 2007 |
| Grant date | Jun 15, 2010 |
| Priority date | — |
| Expiry date | May 24, 2028 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23B2251/02
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A hard material insert (1) for a drill (2, 2′) includes an axially central reinforcement (3) provided in the insert, and two diametrically opposite, radial arms (4) each having a cross-section tapering radially outwardly, opposite free side (8) and connection side (7), with the free and connection sides (8, 7) of one of the radial arms (4) being arranged alternatively to the free and connection sides of another of the radial arms (4), and a concave recess (6) provided on the connection side (7).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.