A shopping cart in one embodiment comprises a uniframe, a mat basket, and a slim-fit cart frame and basket combination, as well as in multiple embodiments, providing individual structural differences and advantages over pre-existing forms of shopping carts.

In one embodiment, a transport dolly includes a base having a generally horizontal platform adapted to support an object to be moved and generally vertical side walls that extend downward from edges of the platform toward a floor or ground surface, and casters mounted to a bottom surface of the platform between the side walls, the casters being dimensioned such that bottom edges of the side walls nearly touch the floor or ground surface such that the casters are enclosed and protected by the side walls.

A portable sled for transporting cargo in outdoor environments comprises overlapping High-Density Polyethylene (HDPE) sheets arranged in a fish-scale configuration. The design features a structural aluminum body with eye bolts at the front and nylon straps for securing cargo. The sled's fish-scale assembly reduces drag, optimizes weight distribution, and minimizes snagging. Heat-treated HDPE sheets 101 maintain a curved shape when assembled but flatten for storage. The sled incorporates high-visibility colors for safety and is buoyant for water-based operations. Its modular design allows for easy assembly and disassembly in the field, making it highly portable and versatile for various outdoor scenarios.

A mobile platform for an autonomous mobile robot comprises an external structural frame extending around the periphery of the platform. A wheel set comprises a plurality of wheel units each coupled to the frame. At least one wheel includes an in-hub electric motor. A central unit conforms to the internal form of the structural frame and has a substantially planar form. The central module includes a power source and a controller. A method of assembling a mobile platform for an autonomous mobile robot comprises the steps of: constructing a peripheral structural frame; providing a central unit configured to conform to the internal form of the structural frame, the central module comprising a power source and a controller; and mounting a wheel set to the frame the wheel set comprising a plurality of wheel units, each coupled to the frame and at least one wheel including an in-hub electric motor.