Railway hopper car door seal
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United States of America Patent
Stats
-
Nov 30, 1982
Grant Date -
N/A
app pub date -
Oct 6, 1978
filing date -
Oct 6, 1978
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Seals to prevent seepage of a fine granular commodity between the hopper doors and the adjacent hopper sheets of a railroad hopper car of the type having opposed pairs of hopper doors swingable between a closed position and a downwardly depending open position. The seals comprise elongated strips of flexible material with their upper longitudinal edge portions mounted along the inside lower edges of the inner and outer hopper sheets and being of a width such that their free lower longitudinal edge portions extend downwardly beyond the lower edges of the hopper sheets. The free edge portions of the seals being bent inwardly by and lying in sealing engagement against the hopper doors when the hopper doors are in their closed position. Similar strips of flexible material may be so located as to form a seal between the upper portion of each hopper door and its adjacent slope sheet.
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