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US 2007/0176453 A1Published application
Rail car having extendable ramp being movable by a load bearing drive system
AssigneeGeorgetown Rail Equipment Company
InventorCharles Aaron
Life of this patent
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Abstract
A ramp stored under the deck of a rail car may be extended using a load-bearing drive system for the loading of freight or equipment onto the rail car. The surface of the ramp may comprise a rail portion or similar structure to allow the loading of rail bound equipment, such as rail maintenance equipment, onto the deck of the rail car.
Claims13
A rail car comprising:
- a deck having a first end and a second end;
- a first ramp having a top surface and a bottom surface, said ramp located adjacent the first end of the deck and extendable from the first end of the deck to substantially ground level;
- a load bearing drive system mounted on the rail car, wherein the rotation of the drive system extends or retracts the first ramp.
The method of loading a rail car which comprises:
- a. providing a rail car having retractable ramps located under its deck;
- b. using at least one weight bearing drive system to extend the ramps to ground level;
- and
- c. moving an object up the ramps unto the deck of the rail car;
1 more element
Dependencies are inferred from the claim text.