Tool comprised of a holder body and a hard insert and method of using same
US5417475A · kind A · utility
176Cited by
41References
41Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 3, 1993 |
| Grant date | May 23, 1995 |
| Priority date | — |
| Expiry date | Nov 3, 2013 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21C35/183
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A breaking or excavating tool has a diamond and/or cubic boron nitride coated cutting insert mounted at the forward end of a tool body which is made of a softer material than the insert. A separately formed retaining member such as a washer, ring or sleeve, made of harder material than the body, is brazed to a front face of the body surrounding the insert to protect the tool body against wear.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.