Rotatable cutters and elements for use on earth-boring tools in subterranean boreholes, earth-boring tools including same, and related methods
US11142959B2 · kind B2 · utility
4Cited by
45References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 18, 2020 |
| Grant date | Oct 12, 2021 |
| Priority date | — |
| Expiry date | Feb 18, 2040 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B10/42
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Rotatable elements for use with earth-boring tools include a movable element and a stationary element. The rotatable element may include a void within the support structure and at least one pin protruding from the void through an exterior side of the support structure. The rotatable element may further include at least one aperture configured to provide a vent to the void. The rotatable element may be disposed at least partially within a cavity of the stationary element. The stationary element may further include a track configured to interact with the at least one pin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.