Cutting tools with two-slope profile
US6994615B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 5, 2003 |
| Grant date | Feb 7, 2006 |
| Priority date | — |
| Expiry date | Jun 5, 2023 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B10/5735
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An abrasive tool insert is formed from a substrate having an inner face that has a center, and annular face which annular face has a periphery. The inner face slopes outwardly and downwardly from the center at an angle ranging from between about 5° and 30° from the horizontal. The annular face surrounds by the inner face and terminates at the periphery. The annular face slopes downwardly and outwardly from the inner face at an angle of between about 20° and 75° from the horizontal. A continuous abrasive layer, having a center and a periphery forming a cutting edge, is integrally formed on the substrate and defines an interface therebetween.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.