Abstract: A method for energy storage and recovery for load hoisting equipment powered by an induction hoist motor controlled by a first inverter and having a dual inverter controlling a capacitor utilizing rest power such as reverse power generated from the motor when lowering a load, and unused power at small load or idle, to charge the capacitor whereby energy is stored in the capacitor and the system is reversed when a load is lifted and power is consumed whereby the capacitor is discharged to deliver power to the hoist motor.

Abstract: A method for nonintrusive scanning of cargo containers quay side while the containers are being transferred between ship and land transportation utilizing a mobile cargo container handling buffer crane having a bridge crane mounted thereon for transferring cargo containers between a ship and land transportation with an intermediate transfer position whereby a suspended container can be noninvasively inspected by a longitudinally reciprocating container traversing radiation emitter apparatus.

Abstract: A mobile cargo container handling buffer crane having a bridge crane mounted thereon for transferring cargo containers between a ship and land transportation with an intermediate transfer position at which a suspended container can be noninvasively inspected by a longitudinally reciprocating container traversing nonintrusive inspection apparatus.