Patent ID: 8333097
Filing Date: 2012-12-18
Classification: B21D

Abstract:
1. A device for bending a workpiece, the device comprising: a rotary hydraulic actuator, the rotary hydraulic actuator fluidly coupled to a controlled source of hydraulic fluid pressure, the rotary hydraulic actuator turning an rotating flange responsive to the hydraulic fluid pressure; a bending member coupled to the rotating flange of the rotary hydraulic actuator, the bending member rotating responsive to rotational motion of the rotating flange; a bending mandrel mounted on a face of the bending member; a force mandrel mounted on the face of the bending member, the force mandrel mounted in a position on the face of the bending member such that rotation of the bending member results in the force mandrel orbiting the bending mandrel; a means for actuating the hydraulic fluid pressure; a means for removably attaching the device for bending to a boom of a construction vehicle.