Direct fixation fastener
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United States of America Patent
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Aug 25, 2020
Grant Date -
Jan 18, 2018
app pub date -
Jul 12, 2017
filing date -
Jul 12, 2016
priority date (Note) -
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status (Latency Note)
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Abstract
A bonded, direct fixation fastener as supportive structure for a rail on a railroad bed comprising: a substantially rectangular rail plate, wherein the rail plate has a generally horizontal center portion having a lower face and an upper face and wherein the rail plate defines an outer perimeter having a face defining a first angle to the railroad bed, the rail plate having attachment means to attach to the rail; a substantially rectangular bottom member defines an inner perimeter having a face defining a second angle to the railroad bed; and a substantially rectangular elastomeric portion disposed between, and bonded to each of, the outer perimeter and face of the rail plate and the inner perimeter and face of the bottom member.
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