Patent ID: 6925807
Filing Date: 2005-08-09
Classification: E21B,F15B

Abstract:
1. An apparatus for controlling an actuator system in a rotating position of a hydraulic system, the actuator system having an electrical actuator in hydraulic communication with a hydraulic actuator and a hydraulic source, the apparatus comprising: a rotary seal having a channel to pass a hydraulic flow from a stationary portion of the hydraulic system to the rotating portion and a channel to return the hydraulic flow from the rotating portion to the stationary portion; a source of electrical power disposed in the rotating portion; a controller module disposed in the rotating portion and being in electrical communication with the source of electrical power to receive power therefrom and in electrical communication with the electrical actuator; and a transceiver disposed in the rotating portion and being in communication with the controller module, the transceiver adapted for wireless communication with a remote transceiver, the wireless communication including transfer of control data and feedback data with the remote transceiver, the controller module sending a control signal to the electrical actuator in response to control data received from the remote transceiver.