Flat cutter bit with cutting insert having edge preparation
US9303511B2 · kind B2 · utility
17Cited by
60References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 26, 2013 |
| Grant date | Apr 5, 2016 |
| Priority date | — |
| Expiry date | Apr 26, 2033 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21C35/1837
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A flat cutter bit for engaging an earth strata material includes a non-rotatable shank portion, a head portion integrally formed with the non-rotatable shank portion and including a tip region distal from the non-rotatable shank portion, and a cutting insert mounted at the tip region of the head portion. The cutting insert includes a body having an angled leading face, a top surface having a relief surface, a T-land surface extending between the angled leading face and the relief surface of the top surface and a cutting edge formed at the intersection of the T-land surface and the relief surface of the top surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.