Rail car door closer

Details Rail car door closer Rail car door closer

2009-07-08

2011-11-15

Le, Mark (Department: 3617)

Railway rolling stock

Special car bodies

Dumping

C105S286000, C105S288000

Reexamination Certificate

active

08056485

ABSTRACT:
A rail car door closer is shown for hopper type rail cars used to carry bulk commodities or materials. Cylinders provide horizontal motion to rotate an axle on which cam closers are attached thereto. The cam closers operate between a relaxed position (down position) and a raised position (up position). During rotation of the cam closers from the relaxed position to the raised position, the cam closers push hopper doors under the rail car up to a latched position. Individual hopper doors can be closed, or multiple doors can be simultaneously closed, depending on the preference of the operator. The cylinders are protected from falling bulk commodities by an elongated tent frame structure.

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