Railway rolling stock – Car framing and structure – Underframes
Reexamination Certificate
2000-04-10
2002-04-02
Morano, S. Joseph (Department: 3617)
Railway rolling stock
Car framing and structure
Underframes
C105S355000, C105S415000
Reexamination Certificate
active
06363864
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a railroad car for transporting at least one cylindrical object such as a coil of rolled steel.
2. Description of the Related Art
Relatively large, heavy cylindrical objects such as coils of rolled steel have been transported on specialized railway freight cars designed for transport of these special loads. Given certain constraints for railroad car design, such as maximum width and length dimensions, the rail car must be designed to enclose a certain volume containing the particular load and the load must be arranged within the volume accorded it. The distributed loads of the goods being carried must be resolved by the car's structure so as to be ultimately borne by the railroad car trucks. At the same time, attention must be paid to reducing the weight of the railroad car itself, as much as possible.
One prior art railway car for carrying steel coils comprises a massive center sill and large, heavy side sills extending substantially the entire length of the car. Transverse cross bearers and cross ties extend outward and upward from the center sill to the side sills to define a trough. While this type of car has been generally satisfactory, there remains a need to further reduce the tare weight required to transport steel coil loads.
SUMMARY OF THE INVENTION
It is an object of the present invention to provide a railroad car for transporting steel coils and the like large, heavy cylindrical objects.
Another object of the present invention is to provide a railroad car of the above-described type having an improved intermediate sill construction which carries loads in a more efficient manner allowing a substantial reduction in the weight of the railroad car.
A further object of the present invention is to provide a railroad car of the above-described type which places support structure more directly under the load, and in particular more directly under loads comprising one or more steel coils.
These and other objects according to the principles of the present invention are provided in a railroad car for carrying steel coils in regular commercial use, including a car body elongated along a longitudinal axis for receiving the steel coils, the improvement comprising:
said car body having opposed ends with wheel trucks adjacent each end and sides extending between the ends;
a pair of draft sills adjacent each end, located below the trough;
a pair of intermediate sills extending substantially the entire length of the car body, said intermediate sills located outboard of the trough and inboard of the car body sides;
a body bolster adjacent each end of the car body, joining the intermediate sills and the draft sills; and
the intermediate sills and draft sills cooperating to form a discontinuous trough for supporting the steel coils.
REFERENCES:
patent: 3291072 (1966-12-01), Cunningham
patent: 3353506 (1967-11-01), Snyder et al.
patent: 3577933 (1971-05-01), Ferris
patent: 3581674 (1971-06-01), O'Leary
patent: 3776144 (1973-12-01), Eislers
patent: 3910201 (1975-10-01), Kunst
patent: 3954066 (1976-05-01), Heap
patent: 4493266 (1985-01-01), Augustine, Jr.
patent: 4686907 (1987-08-01), Woollam et al.
patent: 5170717 (1992-12-01), Richmond et al.
patent: 5191842 (1993-03-01), Tinkler
patent: 5564341 (1996-10-01), Martin
patent: 5622116 (1997-04-01), Carlton
patent: 5743191 (1998-04-01), Coslovi
patent: 3911138 (1990-10-01), None
Jamrozy Richard E.
Klag James P.
Fitch Even Tabin & Flannery
Jules Frantz F.
Morano S. Joseph
TRN Business Trust
LandOfFree
Lightweight railroad car for carrying steel coils does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Lightweight railroad car for carrying steel coils, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Lightweight railroad car for carrying steel coils will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2899476