Internal drainage system for hollow member structural assembly and method
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United States of America Patent
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Sep 19, 1989
Grant Date -
N/A
app pub date -
Mar 17, 1988
filing date -
Mar 17, 1988
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An internal water drainage system for an interconnected hollow structural assembly within a railroad pressure discharge hopper car or the like is disclosed. To facilitate water drainage throughout the interconnected hollow structural assembly following hydrostatic pressure testing of the car, water draining passageways are provided in the hollow structural members in an area of juncture between the members, at least along a lowermost extent of each of the hollow structural members. The water drainage passageways are constructed to communicate with a water drain opening provided in the shell of the railroad car, in order to afford gravity flow of water through the hollow structural members and evacuation from the railroad car. A method for hydrostatic pressure testing of a railroad car is also disclosed in which gravity flow evacuation of water through the hollow structural members is achieved by utilizing gravity flow of water throughout. In both the aforementioned assembly and method, water deterioration, corrosion, and the like after hydrostatic pressure testing are substantially minimized or totally eliminated.
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