Core drill bit
US10723041B2 · kind B2 · utility
7Cited by
15References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 27, 2017 |
| Grant date | Jul 28, 2020 |
| Priority date | — |
| Expiry date | Jan 6, 2038 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B10/48
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A core drill bit can include a first region and a second region. The first region can include abrasive particles in a first bond matrix, and the second region can include abrasive particles in a second bond matrix. The first region is connected to the second region. A composition of the first bond matrix can be different from a composition of the second matrix. In a particular embodiment, the first bond matric can include a Co-containing material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.