System, method and apparatus for downhole torque-transferring ball screw
US11873686B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 15, 2023 |
| Grant date | Jan 16, 2024 |
| Priority date | — |
| Expiry date | Feb 15, 2043 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F15/10
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A downhole tool has a main body that is cylindrical and includes a top coupling that couples to a drill string. A second body that is cylindrical is positioned at least partially within the main body. The second body has a bottom coupling that couples to a drill bit. Springs are positioned within the downhole tool and transmit an axial force to the drill bit. A first set of grooves is formed on an interior of the main body, and a second set of grooves is formed on an exterior of the second body. Balls travel within the first and second sets of grooves. At least some of the balls simultaneously engage the main body and the second body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.