Driven latch mechanism
US8794355B2 · kind B2 · utility
6Cited by
56References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 6, 2010 |
| Grant date | Aug 5, 2014 |
| Priority date | — |
| Expiry date | Jul 19, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T279/1091
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A core barrel assembly having a driven latch mechanism that can lock the core barrel assembly axially and rotationally relative to a drill string. The driven latch mechanism can include a plurality of wedge members positioned on a plurality of driving surfaces. Rotation of the drill string can cause the plurality of wedge members to wedge between an inner diameter of the drill string and the plurality of driving surfaces, thereby rotationally locking the core barrel assembly relative to the drill string. Drilling systems including the driven latch mechanism and methods of using the driven latch mechanism are also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.