Cylindrical retainer for a cutting bit
US4728153A · kind A · utility
59Cited by
3References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 22, 1986 |
| Grant date | Mar 1, 1988 |
| Priority date | — |
| Expiry date | Dec 22, 2006 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21C35/197
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A cylindrical retainer which retains a cutting bit in a bore of a bit mount of a cutting tool, including a circumferential inner ridge which extends into a corresponding groove in the bit, and a plurality of circumferentially, spaced protuberances which bear against the wall of the bore.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.