Hatch cover for a railroad hopper car
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United States of America Patent
Stats
-
Dec 7, 2004
Grant Date -
Sep 30, 2004
app pub date -
Mar 26, 2003
filing date -
Mar 26, 2003
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A hatch cover adapted to be positioned over and close a hatch opening on a railroad hopper car. The hatch cover includes a rigid panel sized to cover the hopper car hatch opening. The panel for the hatch cover includes an inner skin, an outer skin, and a core material sandwiched between and adhered to the inner and outer skins. Edge structure is secured to the panel for protecting edges of the panel.
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Family
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Cited Art Landscape
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