Self-positioning substructure locking mechanism
US9388641B1 · kind B1 · utility
0Cited by
1References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 10, 2015 |
| Grant date | Jul 12, 2016 |
| Priority date | — |
| Expiry date | Jun 10, 2035 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B15/006
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The present invention discloses an automatic drill floor to substructure latching system that adds to the safety of drilling operations. In particular, the present invention is applicable for rapid and safe locked connection of a drilling rig side box to the drilling rig base box such that weight imbalances incurred when raising of the drilling rig mast will not result in unsecured and unsafe separation of the side box and base box.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.