Patent ID: 7226072

Claim:
A wheeled carrier device, said device comprising: a support base bottom defining a plane substantially perpendicular to a rolling surface including a plurality of upwardly projecting stub walls, defining a periphery, a side elevational profile and a perimeter, as well as an interior space and an underside aspect, and at least one hand grasp serving as a handle; and a selectively removable sub-assembly mounting frame defining a periphery includes at least one movably mounted wheel support unit component defined by at least one wheel and wheel attaching means and at least one movably mounted underside support component, and a transport and storage position of the selectively removable sub-assembly mounting frame wherein the frame and the movably mounted components are located within the periphery, side elevational profile, perimeter as well as the interior space of the carrier device support base above the support base bottom, and in an underside aspect mounted position the selectively removable sub-assembly mounting frame is removably mounted to the underside aspect of the support base structure by at least one manually releasable connection, and the selectively removable sub-assembly mounting frame has at least two selective positions in said underside aspect mounted position, in a first operative underside aspect mounted position the at least one wheel support unit is erected providing rolling support for the carrier device and is orthogonal to the support base, and the at least one underside support is erected orthogonally to the support base, providing support between the device and the rolling surface, and in a second, stowed underside aspect mounted position, at least one wheel support unit and at least one wheel is substantially parallel with and contiguous to the underside aspect of the support base, and the periphery of the selectively removable sub-assembly mounting frame and the movably mounted components are substantially within the periphery, side elevational profile and perimeter of the carrier device support base.