Manipulator for a mast and substructure raising cylinder
US10508494B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 2, 2017 |
| Grant date | Dec 17, 2019 |
| Priority date | — |
| Expiry date | Feb 15, 2038 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B19/086
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An actuator assembly for a drilling rig includes a cradle actuator coupled to a substructure of a rig, and an actuator bracket having a first end pivotally coupled to the substructure. The actuator bracket is coupled to the cradle actuator. The assembly also includes a cradle having a first end that is pivotally coupled to the actuator bracket and to a first end of a rig-up actuator. The rig-up actuator is receivable at least partially in the cradle. The assembly further includes a front bracket pivotally coupled to the cradle and to the substructure. Extension of the cradle actuator pivots the actuator bracket, the cradle, and the front bracket so as to raise a second end of the rig-up actuator, thereby moving the rig-up actuator from a stowed position to raised position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.