Roller cutter
US4004644A · kind A · utility
6Cited by
5References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 27, 1976 |
| Grant date | Jan 25, 1977 |
| Priority date | — |
| Expiry date | Jan 27, 1996 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B10/28
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
In the saddle structure of the improved drill bit cutter assembly of the invention both spaced-apart legs are provided with bores each extending through the leg to receive a clamping bolt. These bores extend in directions including between them an angle of up to 90.degree.. The shaft-receiving recess, between the legs, has a polygonal shape complementing that of the end portion of the shaft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.