Patent ID: 8366123

Claim:
A conveyance for use with an automobile floor-type hydraulic jack on loose, rough or sandy level ground, said conveyance comprising: (i) a main frame; (ii) at least three vertical support struts, wherein each of said vertical support struts further comprises a foot disposed on the bottom of each of said vertical support struts; (iii) an axle, wherein said axle is fixed relative to said main frame; (iv) two front wheels attached at opposite ends of said axle; (v) a support frame comprising a first member extending upwardly at an angle from the main frame and a second member extending from the first member parallel and above the main frame; (vi) one rear wheel attached to said support frame, wherein the rear wheel is a swivel caster; (vii) wherein each of said front and rear wheels has a pneumatic tire mounted thereon; and (viii) a means for detachably fastening an automobile floor-type hydraulic jack to said main frame; (ix) wherein said pneumatic tires and said vertical support struts together provide a pneumatic mechanism for a smooth transition of the load transfer from said pneumatic tires in an unloaded condition, to the set of said vertical support struts in a loaded condition.