US Patent 10914131 Mechanical rotating control device latch assembly

A remotely and mechanically actuated RCD control tool adjusts at least one component of an RCD latch assembly between at least two settings. The mechanical RCD control tool comprises a rotational cylinder and a guide cylinder, the rotational cylinder configured to rotate in a rotational direction to adjust the RCD latch assembly from a first setting to a second setting and from the second setting to the first setting based on movement of the drive cylinder in a selected direction. Additional apparatus, methods, and systems are disclosed.