Keyway tie
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United States of America Patent
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Jul 14, 2020
Grant Date -
Jul 11, 2019
app pub date -
Jan 10, 2018
filing date -
Jan 10, 2018
priority date (Note) -
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status (Latency Note)
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Abstract
A tie having a non-linear keyway under the overlying rail to provide support to restrain lateral and longitudinal movement of the rail. A fastening system to hold rails down on a tie comprises a rail plate that may be fastened to the tie within the keyway. The fasteners are protected to avoid damage in case of a derailment or other adverse conditions. Also disclosed are visual inspection mechanisms to assist with determining whether a fastening system is securely attached to the tie.
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