Abstract: A system for connecting a cement string for a cementing operation, the system may include a casing spool and a lower quick connector attached to the casing spool, the lower quick connector comprising a lower body having an inner surface and at least one sealing element disposed on the inner surface of the lower body. The system may also include a cement adapter removably connected to the lower quick connector, the cement adapter comprising a cement adapter body having an outer edge that engages at least one sealing element and a radial protrusion extending outwardly from the cement adapter body and a connector clamp that engages the lower quick connector and the cement adapter to hold the cement adapter in place relative to the lower quick connector.

Abstract: Disclosed are systems and methods for connecting a hydraulic fracturing fluid source to various wells at a given well site. In general, use of disclosed systems and methods provide for repositioning (refocusing) the hydraulic fracturing operation amongst multiple wells may be achieved. In one example, a system to reroute fracturing fluid from a source to various wells at a well site may be provided. The use of adapters and quick clamp connections allow hydraulic fracturing fluid to be rerouted between various wells in a manner to decrease the cost and reduce hazards associated with changing hydraulic fracturing locations. Modular components of the system (and an overall modular design of the system itself) may allow a centralized manifold to be relocated to various locations at one or more well sites.

Abstract: A system includes at least one camera implemented in an aircraft, the at least one camera configured to capture images external to the aircraft. The system further includes at least one processor implemented in the aircraft, one or more of the at least one processor communicatively coupled to the at least one camera, the at least one processor configured to: receive the images from the at least one camera; identify visual references in at least one of the images; and output an annunciation instruction configured to cause an annunciation to a pilot that the visual references have been identified by the at least one processor.

Abstract: An example robot includes a first actuator and a second actuator connecting a first portion of a first member of the robot to a second member of the robot. Extension of the first actuator accompanied by retraction of the second actuator causes the first member to roll in a first roll direction. Retraction of the first actuator accompanied by extension of the second actuator causes the first member to roll in a second roll direction. A third actuator connects a second portion of the first member to the second member. Extension of the third actuator accompanied by retraction of both the first and second actuators causes the first member to pitch in a first pitch direction. Retraction of the third actuator accompanied by extension of both the first and second actuators causes the first member to pitch in a second pitch direction.

Abstract: A security system utilizing a key-mounted transponder achieves fast and accurate charging of the transponder by using a frequency search and acquisition phase which attempts partial charging pulses at a plurality of spaced frequencies. After a successful partial charging, a frequency calibration signal is received from the transponder which provides a reference in the transceiver for producing a pulse for fully charging the transponder. Frequency search and acquisition allows robust system operation while using low cost and low tolerance parts.