Patent ID: 7785056

Claim:
A system for cargo handling comprising: a first guide rail; a motorized platform having wheels cooperating with the first guide rail, the motorized platform comprising: a chassis comprising a ladder-like structure wherein a plurality of braces extend laterally between side support rails, an upper surface of said braces and an upper surface of said chassis comprising an upper surface of said motorized platform, said upper surface of said chassis moveable with respect to said upper surface of said braces; an onboard power source; a control module controlling drive motors of the wheels of the platform cooperating with the first guide rail; and means for reciprocating at least a portion of an upper surface of the platform sufficient to elevate a load placed thereon, said upper surface of said platform further comprising a plurality of retractable rollers, said rollers retractable with respect to said upper surface, said rollers extendable above said upper surface.