Quick release blowout preventer bonnet
US6845959B2 · kind B2 · utility
14Cited by
8References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 28, 2003 |
| Grant date | Jan 25, 2005 |
| Priority date | — |
| Expiry date | Aug 1, 2023 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/062
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A bonnet lock mechanism for a blowout preventer including an angled surface disposed in the blowout preventer, a latching dog having a tapered surface disposed in the bonnet, and a lock actuator operatively coupled to the latching dog. The the lock actuator is adapted to move the latching dog such that the latching dog is in locking engagement with the angled surface of the blowout preventer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.