Multipurpose latch for jack-up rig
US11753895B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 21, 2022 |
| Grant date | Sep 12, 2023 |
| Priority date | — |
| Expiry date | Apr 21, 2042 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/0353
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A multipurpose latch assembly (MPLA) for installation above the bore of a blowout preventer includes an annular sidewall extending between a top flange and a bottom flange and having an interior bore surface defining an interior bore. A plurality of latching slots extend through the sidewall and a latching dog is slidably positioned in each latching slot. Actuators are connected to the latching dogs to extend and retract them through the latching slots. A tool having an external slot can be inserted into the bore of the MPLA and selectively engaged by the latching dogs to secure the tool in the bore of above the blowout preventer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.