Abstract: In one embodiment, an intermodal cargo container includes a lid section having a rectangular box with an open bottom portion. A floor unit has a channel portion arranged around a periphery, and the channel portion receives a bottom edge of the lid section. Locking mechanisms are arranged along an edge of the lid section to couple the lid section to plural rungs that extend across the channel portion. The sliding lock mechanism includes engagement tabs that engage associated rungs extending between two walls of the channel portion. A sealing portion is provided within the channel so as to provide a fluid-tight seal when the lid section is coupled to the floor unit. A powered actuator can assist in moving the lock mechanism. A spring assembly at a corner of the floor unit provides a spring tension to the sliding lock mechanism.

Abstract: In one embodiment, an intermodal cargo container includes a lid section having a rectangular box with an open bottom portion. A floor unit has a channel portion arranged around a periphery, and the channel portion received a bottom edge of the lid section. Locking mechanisms are arranged along an edge of the lid section to couple the lid section to plural rungs that extend across the channel portion. The sliding lock mechanism includes engagement tabs that engage associated rungs extending between two walls of the channel portion. Corner boxes are arranged at each corner of the floor unit. A sealing portion is provided within the channel so as to provide a fluid-tight seal when the lid section is coupled to the floor unit. An actuator mechanically assists in moving the lock mechanism. A gooseneck portion is arranged at each end of the container, and a spring assembly at a corner of the floor unit provides a spring tension to the sliding lock mechanism.