Boxcar tiedown system using angled warp spikes
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United States of America Patent
Stats
-
Jun 26, 2001
Grant Date -
N/A
app pub date -
Apr 8, 1999
filing date -
Apr 8, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Angled warp spikes enable secure attachment to the steel flooring of a railroad boxcar. Such flooring includes transverse slots with a curved depth profile. The warp spikes are designed to deform or warp as they are driven into a flooring slot and conform to the curved depth profile. Tiedown fixtures fabricated of steel plate can be attached to the floor of a boxcar by warp spikes driven through elongated openings in the fixture into slots in the boxcar flooring. Tiedown fixtures used with warp spikes provide a boxcar tiedown system to which tiedown load carrying members, such as cables, chains, braces and struts can be connected.
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Cited Art Landscape
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