Abstract: A method and apparatus for coupling trailer plates, wherein each plate has a stepped section. At least two trailer plate receiving areas are located on an outward-facing surface of a substantially rectilinear strip. An inward-facing surface of the trailer plate stepped section is coupled to the receiving area on the substantially rectilinear strip.

Abstract: A tractor trailer having an adjustable wheel assembly, the trailer comprising at least two laterally spaced frame members. A plurality of openings are located in the frame members, with each opening having a flange section structured to receive a wheel assembly locking-pin. The flange section increases the load-bearing area of each frame member opening.

Abstract: An adjustable chassis for transporting shipping containers of different configurations. The chassis comprises at least two spaced-apart frame members, with each frame member including an upper surface for supporting a shipping container. At least two conversion members are pivotally coupled to the chassis by at least two translation members. The conversion members are configured to translate from a storage position between the frame members to a deployed position resting on the upper surface of the frame members.

Abstract: A lift fitting for cargo containers. The lift fitting can be constructed as an intermediate lift fitting to be positioned inboard from the corners of the container. The lift fitting defines a hollow body member with apertures for receiving lifting such as a crane arm or coupling devices such as twist locks. The lift fitting also has an extension on an outside surface for attachment to the cargo container to maintain the integrity and geometry of the container and to minimize the number of welds and the associated construction costs. In a particular example, the lift fitting has both a horizontal extension and a vertical extension for attachment to a cargo container.

Abstract: A cargo container having joining members to join plural panels and a top rail assembly connecting the side panels to the roof of the container. In one embodiment the joining member defines a longitudinally elongated hollow core, which optionally is filled with structural foam. In another embodiment, the joining member receives a logistic insert having logistic slots. The top rail assembly has a longitudinally extended mounting flange for mounting the side panels. By angling the top rail, the container achieves a characteristic wedge-shaped side profile, while still using uniformly height dimensioned side panels.