Patent ID: 7837245

Claim:
A load-lifting fixture comprising: a hollow spreader beam; a plurality of load release assemblies, each load release assembly including a door lock unit having an electric actuator motor secured within said hollow spreader beam, said door lock unit having a plunger movable in a first direction in response to application of a first polarity voltage to the electric actuator motor and in a second direction in response to application of a second and opposite polarity voltage; first and second spaced-apart eye blocks secured to an exterior surface of said hollow spreader beam and having a gap therebetween, each eye block having a cylindrical aperture that is coaxial with the aperture of the other eye block; a bolt mechanically coupled to the plunger through a slot in a wall of said hollow spreader beam, said bolt being slidable within the apertures of both eye blocks, said bolt moving in concert with said plunger in said first direction to span the gap between said eye blocks, and moving in said second direction to open the gap; a loopable load securing member having a first end permanently secured to said hollow spreader beam, and a second end capturable within the gap by said bolt; a battery for providing said first and second polarity voltages to said electric actuator motor; and a radio receiver/controller unit for receiving radio control signals from a transmitter controlled by an operator, said radio receiver/controller unit directing a voltage of appropriate polarity to said door lock unit in accordance with a received radio control signal.