Flared railway frog
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United States of America Patent
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Aug 28, 2007
Grant Date -
Apr 20, 2006
app pub date -
Oct 15, 2004
filing date -
Oct 15, 2004
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An improved railway frog having opposite side flangeways, each flangeway comprising a channel with an ending width greater than a corresponding channel width of a conventional frog. The improved frog channel further comprising a first segment and a second segment. The second segment having an outside wall angled greater than a corresponding first segment outside wall in relation to an inner wall of the channel.
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Cited Art Landscape
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