Patent ID: 7686561
Filing Date: 2010-03-30
Classification: B66C,E02F

Abstract:
1. A material-handler adapted for locating on top of an open topped railroad car comprising: a chassis having a first end and a second end and a top surface; a propulsion device for selectively propelling said chassis in a forward direction forward of said first end or in a rearward direction rearward of said second end; a first stabilizer extending in said forward direction beyond said first end of said chassis for extending forwardly of said first end of said chassis, said first stabilizer having a distal end; a second stabilizer extending in said rearward direction beyond said second end of said chassis for extending rearwardly of said second end of said chassis, said second stabilizer having a distal end; wherein said first stabilizer and said second stabilizer are pivotally mounted to said chassis; said first stabilizer is comprised of a pair of outriggers; said second stabilizer is comprised of a pair of outriggers; a wheel located at each distal end of said first pair of outriggers and said second pair of outriggers; said wheel having a contact surface and a rim portion; an actuatable clamp located at each of said distal ends of said first stabilizer and said second stabilizer, said actuatable clamp for selectively clamping a railroad car top surface between said clamp and said rim portion of said wheel; and a knuckle boom rotatably mounted with respect to said chassis.