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Control system for hydraulic dampers

Image Number 4 for United States Patent #4635960.

A control system for controlling the damping force of a plurality of hydraulic dampers, each of which includes a damping force producing mechanism; a damping force adjustment members for adjusting the effective passage area of an oil passage in the damping force producing mechanism; and an actuator connected to the damping force adjustment member, comprises an indicator circuit for indicating the adjusted and en-route conditions of at least one damping force producing mechanism; an electric power supply circuit for supplying electric power to respective actuators; and the power supply circuit being provided with an inhibiting circuit for inhibiting the supply of power to an actuator associated with a damping force adjustment member which has already been adjusted, through a part of the power supply circuit associated with a damping force adjustment member which has yet not been adjusted.

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