Patent ID: 7934757
Filing Date: 2011-05-03
Classification: B66C,Y10S

Abstract:
1. A crane-mounted, remotely-controlled, lifting device, the crane having a cable for attachment to the lifting device, the lifting device comprising: a housing having a top portion, a bottom portion, and a pair of side surfaces defining substantially planar surfaces; a spindle mounted on said housing at the top portion, the spindle being adapted for attachment to the cable; a pair of arcuately-shaped grasping members mounted to said housing at the bottom portion; hydraulic cylinders mounted to said housing adjacent to the bottom portion and directly attached to said pair of grasping members for selectively moving each of said grasping members about distinct planes substantially parallel to said pair of side surfaces; a power unit contained in said housing for moving said hydraulic cylinders; an electric battery contained in said housing for operating said power unit; a remote control device for sending a signal to said housing; and a receiver contained in said housing for receiving the signal from said remote control device.