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AssigneeNational Steel Car Limited
InventorsJames W. Forbes, Mohamed A. Khattab, Tomas Bis, William R. Davis
Estimating the term…
A hopper car discharge section may be wide at the top and narrow at the bottom. Outflow is controlled by closure members, at least one of which is movable. The closure members come together to a closed condition or position for retaining lading. When apart, in an open position or condition, lading may be discharged. A seal member or seal member assembly is mounted to one or both of the closure members. When open, the seal member or seal member assembly lies substantially flush with, or shy of, the slope of the surface of the closure member. When closed, the seal member may be self-energizing, in the sense that as lading is added the seal may tend to seal more tightly. The seal assembly may include a cantilevered spring that presents a land to the opposed closure member, and a fulcrum, over, or across, which the spring is cantilevered, such that pushing down on one end of the spring may tend to cause the other end to flex upward. The fulcrum may also be cantilevered outward from the slope sheet of the closure member to which the seal assembly is attached. The discharge section may be robustly reinforced to discourage deformation.
The combination of a door seal member for a gate of a hopper of a rail road car and a second member, the gate including at least a movable closure member and another closure member co-operable with the moving member, in which combination of door seal member and second member,
A door seal assembly for a closure of a hopper discharge section of a rail road hopper car, the discharge section being movable between a closed position for retaining lading in the hopper and an open position for permitting the release of lading from the hopper, the hopper discharge section including a first closure member and a second closure member, at least one of the first and second closure members being movable, the first and second closure members being co-operable, the first closure member having a margin along which to mount the door seal assembly, wherein:
A hopper discharge section of a rail road hopper car, the discharge section being movable by door operating members of the rail road car between a closed position for retaining lading in the hopper and an open position for permitting release of lading from the hopper, the hopper discharge section comprising:
The combination of a door seal member for a gate of a hopper of a rail road car and a second member, the gate including at least a movable closure member and another closure member co-operable with the moving member, in which combination of door seal member and second member,
The combination of a door seal member for a gate of a hopper of a rail road car and a second member, the gate including at least a movable closure member and another closure member co-operable with the moving member, in which combination of door seal member and second member,
Dependencies are inferred from the claim text.