Patent ID: 8029006

Claim:
A stackable dolly comprising: a platform having a predetermined thickness and defining opposing generally flat upper and lower surfaces and a peripheral edge surface generally uniformly spaced from a central axis normal to said platform extending between said upper and lower surfaces and; a plurality of legs generally co-extensive with said platform and extending from said platform beyond said platform periphery, each leg defining an upper surface generally co-extensive with said upper surface of said platform and a lower surface serving as a mounting surface, said legs being substantially generally equally spaced from each other about said axis along said periphery of said platform; a plurality of alignment members each mounted on said mounting surface of an associated leg, each alignment member including an inwardly facing alignment edge being arranged radially outwardly and in opposition to said peripheral edge surface and substantially co-planar with a cooperating lower platform for abutting against a peripheral edge surface of the cooperating dolly placed below said platform when said platform of an upper dolly is supported on and shifted laterally in relation to a cooperating lower dolly; and a caster secured to each leg radially outwardly relative to an associated inwardly facing alignment edge, whereby a plurality of dollies can be stacked one on top of the other by contact of an upper dolly with a platform upper surface of a lower dolly while said alignment members maintain vertical stability of a stack of dollies by substantially preventing adjacent dollies from shifting laterally relative to each other in any lateral direction relative to said axis to effectively prevent any lateral movements of two associated dollies relative to each other.