Railway rolling stock – Special car bodies – Dumping
Reexamination Certificate
2011-04-12
2011-04-12
Morano, S. Joseph (Department: 3617)
Railway rolling stock
Special car bodies
Dumping
C105S250000, C105S280000
Reexamination Certificate
active
07921783
ABSTRACT:
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. The closure member may have a lading discharge encouragement feature, which may be in the nature of a tine, or blade, or knife that extends upwardly through the throat of the discharge section. Movement of the door may tend to move the blade, thereby tending to dislodge lading that may be otherwise reluctant to move.
REFERENCES:
patent: 1910583 (1933-05-01), Wine
patent: 3997089 (1976-12-01), Clarke et al.
patent: 4366757 (1983-01-01), Funk
patent: 4574989 (1986-03-01), Pole
patent: 6067912 (2000-05-01), Miller
patent: 2009/0302065 (2009-12-01), Winsor
Bis Tomasz
Forbes James W.
Hahn Loeser & Parks LLP
Kuhfuss Zachary
Minns Michael H.
Morano S. Joseph
National Steel Car Limited
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