Abstract: A fracking fluid hydration unit is provided that has a plurality of hydration tank sections wherein shear is added to the hydrated fluid flow via a recirculation hydrated fluid jetting system.

Abstract: A circuit is disclosed for disconnecting electrical power upon the detection of an elevated temperature comprising an electrical plug and an electrical receptacle interconnected by a power cable. An interruption circuit having a disconnect switch is interposed in the power cable. A plug heat sensitive device and a receptacle heat sensitive device monitor the temperature of the electrical plug and the electrical receptacle. An elevated temperature detection circuit opens the disconnect switch upon the detection of an elevated temperature in one of the electrical plug and the electrical receptacle to prevent an overheated condition.

Abstract: Sensors can be positioned on or near a remotely controlled device to monitor the status and/or internal conditions of the device and transmit the status information through a data link to a control station, where the information can be provided to a user or operator via sensory stimulation signals. Such sensory stimulation signals can include auditory stimulation signals that can convey the information to the user while allowing the user to maintain visual attention on the remote device. The sensor information can be transmitted as digital information from the remote station to a control station, where it is converted to sensory stimulation signals, such as sounds, which can include tones, alarms, speech, other audible sounds, or combinations thereof. An operator controlling the remote device can, upon receiving the sensory stimulation signals, provide input signals for controlling the remote device.

Abstract: Embodiments of the invention allow sensors positioned on or near a remotely controlled device to monitor the status and/or internal conditions of the device and transmit the status information through a data link to a receiver station, or control station, where the information can be provided to a user or operator via sensory stimulation signals. Such sensory stimulation signals can include auditory stimulation signals that can convey the information to the user while allowing the user to maintain visual attention on the remote device. A remote station can obtain information from sensors operably connected to the remote device. The sensor information can be transmitted as digital information from the remote station to a control station, or receiver station, where it is converted to sensory stimulation signals, such as sounds. Such sounds can include tones, alarms, speech, other audible sounds, or combinations thereof.