Drill bit inserts and drill bits including same
US11220869B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 1, 2018 |
| Grant date | Jan 11, 2022 |
| Priority date | — |
| Expiry date | Feb 27, 2038 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B10/627
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An insert for a drill bit includes a base portion having a central axis and a formation engaging portion. The formation engaging portion includes an elongate peaked ridge, a first flanking surface extending from the peaked ridge, and a second flanking surface extending from the peaked ridge. The first flanking surface is defined by a first curve rotated about a first axis and the second flanking surface is defined by a second curve rotated about a second axis. The first axis and the second axis are disposed in a reference plane that bisects the base portion and contains the central axis of the base portion. The first axis is disposed at a first radius measured in the reference plane and the second axis is disposed at a second radius measured in the reference plane. The first radius is different from the second radius.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.