Railroad hopper car vent
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United States of America Patent
Stats
-
Jan 30, 1990
Grant Date -
N/A
app pub date -
Mar 22, 1989
filing date -
Mar 22, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The invention is directed to a venting device for admitting air into an enclosed container such as a railway car during discharge of material from the container. The device includes a securing member having an interlock for releasably retaining a replaceable filter member that is adapted to admit air into the container. The mounting member is adapted for mounting in an opening in the container member. A securing member has a one way interlook with the mounting member which may be overridden for disassembly and a releasable interlock with the filter member.
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Cited Art Landscape
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