Abstract: Methods and systems for connecting threaded tubulars are presented. One example method generally includes monitoring relative rotation between a backup tong and a tubular clamped in the backup tong to determine slippage of the backup tong.

Abstract: A tool coupler includes a first component having a tubular body and a locking member and a second component. The second component includes a housing having an opening for receiving the tubular body; a locking ring having a latch; and an axial channel; a recess for receiving the locking member, wherein the latch is positioned in the channel to retain the locking member in the recess.

Abstract: A method of connecting a first threaded tubular to a second threaded tubular includes engaging the threads of the tubulars and rotating the first tubular relative to the second tubular to makeup a threaded connection. The method further includes, during makeup of the threaded connection: measuring time, measuring torque applied to the connection, and measuring turns of the first tubular. The method further includes using a programmable logic controller for: evaluating at least one of the measured turns, measured torque, and measured time for at least one of a discontinuity, a torque spike, and a torque drop and accepting or rejecting the connection based on the evaluation.

Abstract: A bearing assembly for a first part that rotates with respect to a second part may include a slewing bearing having an axis of rotation and inner and outer races concentric with the axis of rotation. The inner race may be fixed to the first part and the outer race may be fixed to the second part. An inner, annular catch ring may be fixed to and adjacent to a lower surface of the inner race. An outer, annular catch ring may be fixed to and interposed between a lower surface of the outer race and the second part. A portion of the outer catch ring may be disposed below and adjacent to the lower surface of the inner race.

Abstract: An advance is made in the art according to an aspect of the present invention disclosure directed to a pressure-activated, inertially locking base and fin mechanism for projectiles. Operationally, a base housing of a projectile contains both the fins, held within slots within the base, and a plunger. Which plunger has plurality of channels communicating with a chamber within base and which plunger is initially situated flush with the base. Upon firing the chamber is pressurized by the high-pressure firing gases being forced through the channels. When the projectile exits the barrel, the chamber's pressure vents through the channels, but, not fast enough to avoid a pressure differential that forces the plunger out of the base, causing a set of spring arms to flex upward and deploy the fins. When fully deployed, the fins are locked in place, in the deployed position, by a spring loaded pin.