Cutting elements for cutting tools
US8936109B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 24, 2011 |
| Grant date | Jan 20, 2015 |
| Priority date | — |
| Expiry date | Jul 19, 2032 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B29/002
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Cutting elements for downhole cutting tools comprise a top surface having a cutting surface portion and a cutting profile disposed across the top surface. The cutting elements comprise first and second longitudinal side surfaces and first and second lateral side surfaces, each having a respective cross-section. The cutting profile can be disposed on the cutting surface either asymmetrically or symmetrically. Asymmetrical disposition permits two cutting elements to be arranged facing each other to cover a center point of a cutting tool. The cutting edge of asymmetrical or symmetrically disposed cutting profiles can have a shape that facilitates self-sharpening during cutting.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.