Rail car cover system

1. A rail car cover system comprising:

a rail car having an opening;

a first cover section operably attached to the rail car, wherein the first cover section comprises a first corner hinge assembly, a first intermediate hinge assembly and a first flexible cover material and wherein the first corner hinge assembly and the first intermediate hinge assembly are both attached to the first flexible cover material; and

a second cover section operably attached to the rail car, wherein the second cover section comprises a second corner hinge assembly, a second intermediate hinge assembly and a second flexible cover material, wherein the second corner hinge assembly and the second intermediate hinge assembly are both attached to the second flexible cover material, wherein the first cover section and the second cover section are both movable between a closed configuration and an open configuration, wherein the first corner hinge assembly and the first intermediate hinge assembly are independently operable so that the first cover section does not remain flat when moving between the closed configuration and the open configuration, wherein the second corner hinge assembly and the second intermediate hinge assembly are independently operable so that the second cover section does not remain flat when moving between the closed configuration and the open configuration, when in the closed configuration, the first cover section and the second cover section substantially cover the opening.

2. The rail car cover system of claim 1 , wherein the rail car comprises a first side, a second side, a first end, a second end and a bottom that are operably connected to define an enclosure with an upwardly directed opening.

3. The rail car cover system of claim 2 , wherein the first cover section is operably attached to the first side and wherein the second cover section is operably attached to the second side.

4. The rail car cover system of claim 3 , wherein the first cover section and the second cover section are substantially parallel to the first side and the second side when in the open configuration.

5. The rail car cover system of claim 1 , wherein the first and second corner hinge assembly and the first and second intermediate hinge assembly each comprise a hinge and an elongated member that is attached to and extends from the hinge.

6. The rail car cover system of claim 1 , wherein the first and second corner hinge assembly and the first and second intermediate hinge assembly are fabricated from a flexible material.

7. The rail car cover system of claim 1 , wherein the first and second intermediate hinge assembly have a convex configuration.

8. The rail car cover system of claim 1 , wherein the rail car has a first length and wherein the first cover section and the second cover section each have a second length that is approximately equal to the first length.

9. The rail car cover system of claim 1 , and further comprising a mechanical assist to move the first cover section and the second cover section between the open configuration and the closed configuration.

10. The rail car cover system of claim 9 , wherein the mechanical assist is a hydraulic actuator and wherein operation of the hydraulic actuator is controlled with a hydraulic pump.

11. The rail car cover system of claim 10 , wherein the hydraulic actuator includes a counterbalance valve to maintain the first cover section and the second cover section in the closed configuration when the hydraulic actuator is not actuated.

12. The rail car cover system of claim 10 , wherein the first and second flexible cover material have a proximal edge and a distal edge, wherein the mechanical assist is mounted in at least one location along the proximal edge.

13. The rail car cover system of claim 9 , and further comprising at least one contact paddle mounted with respect to the rail car, wherein the at least one contact paddle is operably connected to the mechanical assist to control operation of the mechanical assist.

14. The rail car cover system of claim 13 , wherein the at least one contact paddle is mounted on at least one side of the rail car.

15. A method of covering a rail car comprising:

providing a rail car having an upwardly directed opening;

attaching a first cover section to the rail car, wherein the first cover section comprises a first corner hinge assembly, a first intermediate hinge assembly and a first flexible cover material and wherein the first corner hinge assembly and the first intermediate hinge assembly are both attached to the first flexible cover material;

attaching a second cover section to the rail car, wherein the second cover section comprises a second corner hinge assembly, a second intermediate hinge assembly and a second flexible cover material and wherein the second corner hinge assembly and the second intermediate hinge assembly are both attached to the second flexible cover material; and

moving the first cover section and the second cover section between a closed configuration and an open configuration, wherein the first corner hinge assembly and the first intermediate hinge assembly are independently operable so that the first cover section does not remain flat when moving between the closed configuration and the open configuration, wherein the second corner hinge assembly and the second intermediate hinge assembly are independently operable so that the second cover section does not remain flat when moving between the closed configuration and the open configuration, when in the closed configuration, the first cover section and the second cover section substantially cover the opening.

16. The method of claim 15 , wherein the first cover section and the second cover section are moved between the closed configuration and the open configuration while the rail car is moving.

17. The method of claim 15 , wherein the product is unloaded from the rail car with the first cover section and the second cover section in the closed configuration, wherein at least one of the first cover section and the second cover section deflect as the product is unloaded from the rail car.

18. The method of claim 15 , wherein moving the first cover section and the second cover section between the open position and the closed position is done with a mechanical assist comprising hydraulic, vacuum, electromagnet, a vertical cam actuator and combinations thereof.

19. The method of claim 18 , wherein the mechanical assist is activated sufficiently long so that the first cover section and the second cover section move substantially between the closed configuration and the open configuration.

20. The method of claim 18 , and further comprising causing the mechanical assist to stop after moving between the open configuration and the closed configuration with a relief valve.

21. A method of covering a rail car comprising:

providing a rail car having an upwardly directed opening;

attaching a first cover section to the rail car, wherein the first cover section comprises a first hinge mechanism and a first cover material;

attaching a second cover section to the rail car, wherein the second cover section comprises a second hinge mechanism and a second cover material;

moving the first cover section and the second cover section between a closed configuration and an open configuration, when in the closed configuration, the first cover section and the second cover section substantially cover the opening; and

engaging at least one power rail mounted with respect to the railroad tracks with at least one contact paddle mounted on the rail car, wherein the mechanical assist is operably connected to a power source.

22. The method of claim 21 , wherein the at least one power rail comprises a first power rail and a second power rail, wherein the mechanical assist causes the first cover section and the second cover section to move from the closed configuration to the open configuration when first power rail is connected to a positive terminal.