Abstract: An apparatus and method for handling and storing marine containers transports containers from below using a shuttle that is movable sideways from an elevating cradle in an elevating transfer vehicle. The shuttle has four lifting devices that engage ISO fittings in the container from below. The shuttle can lift a container and travel into a bay of a large storage rack. The lifting devices then lower the container onto supporting brackets that share the ISO fitting with the lifting devices. The shuttle can move the containers within the storage rack, or to a portal where it can be temporarily stored or picked up immediately by a ground vehicle. The system also includes a dock crane buffer and an automated guided vehicle system.

Abstract: A ball deck is disclosed capable of conveying a container having an uneven bottom surface. The ball deck, having an upper surface, houses a plurality of ball transfer units. Each ball transfer unit has a first housing having an upper end terminating adjacent the upper surface of the ball deck. A first load supporting ball, which is preferably hollow, is disposed in an upper section of the housing and has a portion extending above the upper surface of the ball deck. A second load supporting ball, having a lesser diameter than the first ball, supports the first ball. A spring biases the balls axially upward by allowing the first ball to move between an upward position and a downward position when supporting an irregular load surface.