Patent ID: 7051661

Claim:
A railway car having an underframe and at least one hopper for transporting lading, the railway car comprising: the underframe including a center sill which defines in part a longitudinal axis of the railway car; at least one discharge opening formed proximate to a lower portion of the hopper; a respective door assembly pivotally mounted on the center sill adjacent to the at least one discharge opening to control the flow of lading from the hopper; the door assembly operable for movement between a first, closed position and a second, open position relative to the discharge opening; a discharge control system operable to move the door assembly between the first position and the second position; and at least one portion of the discharge control system slidably engaged with the center sill and operable to move generally longitudinally relative to the longitudinal axis of the railway car to move each door assembly between the first, closed position and the second, open position.