RING GATE CONTROL SYSTEM AND CONTROL METHOD
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United States of America Patent
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Issued Date -
Nov 6, 2014
app pub date -
Jun 14, 2013
filing date -
May 6, 2013
priority date (Note) -
Abandoned
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Abstract
Ring gate control system and control method are disclosed herein. An example ring gate control system includes a first servomotor group, a second servomotor group, and a third servomotor group. Each servomotor group is associated with a respective control point located around an annular face of a ring gate. The servomotors within the groups coupled to the annular face of the ring gate at respective linkage points, a transmitter coupled to the annular face of the ring gate and a control valve coupled between a hydraulic source and the at least two actuators and a controller coupled to each of the control valves and to each of the transmitters. The controller is separately operating a closed control loop for each servomotor group to control positions of the control points to control a horizontal orientation of the ring gate.
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