Locking mechanism for a hinged railroad hopper car door
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 8, 2001
Grant Date -
N/A
app pub date -
Aug 11, 1999
filing date -
Aug 11, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A locking mechanism for releasably and positively locking a hinged door of a railroad hopper car in a releasably closed position or condition is disclosed. The locking mechanism for each hinged door on the hopper car includes a lock carried on the hopper car adjacent a discharge opening, a pivotal locking element carried by the discharge door and movable therewith into releasable but positive locking engagement with the lock when the door is swung into a closed position or condition, and a door release mechanism for controllably releasing the locking element from engagement with the lock thereby permitting the discharge door to swing to an open condition or position. When a series of doors are arranged in end-to end relation along a bottom of the car, the door release mechanisms for the discharge doors are operated substantially simultaneously thereby opening substantially an entire bottom of the hopper car. Furthermore disclosed is a discharge door design including top and bottom panels having a cavity therebetween extending across and along substantially the entire length of the discharge door.
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