Railroad car hatch cover

Details Railroad car hatch cover Railroad car hatch cover

1996-03-11

1997-07-08

Le, Mark T.

Railway rolling stock

Special car bodies

Freight

10537708, 220213, B61D 3900

Patent

active

056449909

ABSTRACT:
A railroad car hatch cover assembly includes a ring which defines a car body opening. There is a peripheral seal attached to the ring. A hatch cover is hinged to the ring and closes upon the ring and seal to close the car body opening. There is a lock assembly generally diametrically opposite the hinge for securing the hatch cover in a closing position. The hatch cover has a peripheral sloping side wall and an integral top. The side wall has a bottom surface. The angle between the sloping peripheral side wall and the side wall bottom surface is constant over the interior periphery of the cover. The height of the sloping side wall gradually increases from a minimum height adjacent the hinge and lock assembly to a maximum height generally midway between the hinge and lock assembly.

REFERENCES:
patent: 2970347 (1961-02-01), Massopust
patent: 3228353 (1966-01-01), Carney
patent: 4297757 (1981-11-01), Palemon Camu
patent: 4346664 (1982-08-01), Enzian
patent: 4819830 (1989-04-01), Schultz
patent: 5158022 (1992-10-01), Dugge et al.
patent: 5517925 (1996-05-01), Early

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