Earth-boring tools including rotatable cutting elements, rotatable cutting elements, and associated components and methods
US12258815B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 20, 2023 |
| Grant date | Mar 25, 2025 |
| Priority date | — |
| Expiry date | Feb 28, 2043 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B10/633
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A rotatable cutting element includes a stationary portion defining a cavity with an inner wall, the inner wall extending at an angle radially away from a longitudinal axis of the stationary portion and defining a retaining region. The rotatable cutting element further includes a rotatable portion having one end thereof disposed in the cavity of the stationary portion and structure for engaging a subterranean formation at an opposing end. The rotatable cutting element also includes a retaining element extending between the rotatable portion and the stationary portion, the retaining element extending into the retaining region defined by the inner wall of the stationary portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.