Self-clearing discharge door assembly for railroad ballast hopper car
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United States of America Patent
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-
May 23, 1995
Issued Date -
N/A
app pub date -
Jun 2, 1993
filing date -
Jul 3, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A railroad hopper ballast discharge door assembly includes pliant side panels along a discharge gate opening. The pliant side panels are strong enough to retain the ballast within the hopper when the door is closed, yet are flexible enough to yield when ballast flowing out of the hopper becomes wedged between the side panel and the door as the door closes. Strengthening ribs reinforce the pliant side panels and may be embedded within them. The discharge door assembly is readily adapted for automatic, motor-actuated operation.
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