Stackable dolly

Details Stackable dolly Stackable dolly

2008-04-23

2011-10-04

Shriver, II, J. Allen (Department: 3618)

Land vehicles

Wheeled

Nesting vehicles

C280S079400, C280S651000, C280S087021

Reexamination Certificate

active

08029006

ABSTRACT:
A stackable dolly includes a platform having upper and lower surfaces and a peripheral edge. A plurality of legs are generally coextensive with the platform and extend from the platform beyond the peripheral edge and extend radially outwardly from the platform beyond the platform periphery. Each leg includes an upper surface generally coextensive with the upper surface of the platform a lower surface serving as a mounting surface. The legs are equally angularly spaced from each other about the axis along the periphery of the platform. Casters are secured to each mounting surface of each leg. Engaging members are provided below the platform lower surface each engaging member being arranged approximate to the peripheral edge to abut against the peripheral edge of a cooperating dolly placed below the platform when the platform is supported on the cooperating dolly. The engaging members are restricting lateral movements of the engaged dollies relative to each other. In this manner, a plurality of dollies can be stacked one on top of the other while the engaging members maintain vertical stability of a stack of dollies by preventing adjacent dollies from shifting laterally from each other in relation to the axis.

REFERENCES:
patent: 5445396 (1995-08-01), Sebor
patent: 5823549 (1998-10-01), Morgan
patent: 6257152 (2001-07-01), Liu
patent: 6729631 (2004-05-01), Trine et al.
patent: 6979005 (2005-12-01), McLerran
patent: 7118115 (2006-10-01), Abel
patent: 2003/0205877 (2003-11-01), Verna et al.
patent: 727568 (1955-04-01), None
patent: 2229151 (1990-09-01), None

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