Abstract: A mechanism including a latch and keeper adapted to cooperate in an interengaging relationship relative to each other to facilitate aligning and latching of a hinged cargo container door. The latch is attached to one end of a rotatable shaft which is rotatably mounted parallel to an outer face of the door and is substantially immovable in an axial direction in relation to the door. The keeper is attached to a transverse member of a door frame on the cargo container. A device for rotating the shaft and thereby moving the latch into a cooperative relationship with the keeper is also provided. The latch has an elongated wedge-shaped finger defining inner and outer curved camming surfaces. The keeper includes a base portion and first and second projecting portions at each end of the base portion. The keeper defines spaced apart inner and outer curved camming surfaces which define a latch locking zone therebetween.

Abstract: An improved door fastening system is disclosed for cam-type, or overcenter, locking mechanisms for transport containers and the like. The said improvement providing means for receiving locks or seals at the cam ends of rotatable shaft means and at co-operating keeper means, whereby upon cam-engagement, a government seal or locking means may be received therethrough. The improved system thereby provides tamper-preventive means enabling the detection of vandalism, and further offers a deterrent to unauthorized opening.