Patent ID: 9657533
Date: 2017-05-23
CPC Classifications: E21B

Claim:
1. A system for retention of components of a drilling rig, the system comprising: a first drilling component comprising a first annular groove or ridge; a second drilling component comprising a second annular groove or ridge; a secondary retention device, wherein the first drilling component is coupled to the second drilling component and the secondary retention device engages with the first annular groove or ridge of the first drilling component and the second annular groove or ridge of the second drilling component; and a torque transfer device, wherein the torque transfer device interfaces with the first drilling component and the second drilling component such that the torque transfer device transfers torque between the first drilling component and the second drilling component via the interface of the torque transfer device with the first and second drilling components, and wherein the torque transfer device is disposed radially between the secondary retention device and the first and second drilling components.