Drill bit
US4373593A · kind A · utility
145Cited by
6References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 10, 1980 |
| Grant date | Feb 15, 1983 |
| Priority date | — |
| Expiry date | Mar 10, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T407/27
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A rotary boring bit for boreholes comprises a body provided on its outer periphery with cutting members (6) consisting of a cutting portion (8) and a supporting portion (7), each cutting member being formed as a segment of a sintered body (1) having a core (3) of cutting material encased by a shell (2).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.