Self-clearing discharge door assembly for railroad ballast hoppe

Details Self-clearing discharge door assembly for railroad ballast hoppe Self-clearing discharge door assembly for railroad ballast hoppe

1993-06-02

1995-05-23

Huppert, Michael S.

Railway rolling stock

Special car bodies

Dumping

222557, 298 27, B61D 702

Patent

active

054171652

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.

REFERENCES:
patent: 2020863 (1935-11-01), Willoughby
patent: 2069739 (1937-02-01), Fildes et al.
patent: 2081999 (1937-06-01), Hallquist et al.
patent: 2317007 (1943-04-01), Weniger
patent: 3822650 (1974-07-01), Fearon
patent: 4361096 (1982-11-01), Funk
patent: 4528913 (1985-07-01), Randolph
patent: 4545446 (1995-10-01), Kokabu

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