System, method and apparatus for easer rail that mates with the uncut web of a running rail
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United States of America Patent
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Aug 23, 2011
Grant Date -
Jan 14, 2010
app pub date -
Jul 8, 2008
filing date -
Jul 8, 2008
priority date (Note) -
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status (Latency Note)
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Abstract
An easer rail is mated with the uncut web of a fixed running rail to form a more rigid thermal expansion joint between the fixed rail and a moveable rail. The easer rail has an extension that protrudes into the uncut web the fixed rail. The easer rail extension is machined to be complementary in shape to the uncut web and fits tightly against the flange, the underside of the head, and the base of the uncut web of the fixed rail. Bolt holes are provided through the extension and the easer rail, its extension, and the fixed rail to form multiple bolt joints. The bolted extension not only lengthens the easer rail but locks it in place between the head and base of the fixed rail to provide additional rigidity.
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