Movable cutters and devices including one or more seals for use on earth-boring tools in subterranean boreholes and related methods
US10851592B2 · kind B2 · utility
2Cited by
40References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 28, 2017 |
| Grant date | Dec 1, 2020 |
| Priority date | — |
| Expiry date | Apr 10, 2038 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B10/62
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A rotatable element for an earth-boring tool in a subterranean borehole includes a rotatable element and a stationary element. The rotatable element and stationary element include a seal arrangement between the rotatable element and the stationary element. The seal arrangement encloses a volume that remains substantially constant as the rotatable element moves relative to the stationary element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.