Impedance heating for railroad track switch
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United States of America Patent
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Apr 27, 2004
Grant Date -
Aug 7, 2003
app pub date -
Feb 7, 2002
filing date -
Feb 7, 2002
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A heating system for railroad switches or other movable railroad structures that substantially eliminates protruding heater elements that may be damaged. The heater elements may cast into, enclosed within or received within recesses of a tie (including a metal or concrete tie), rail or other component. In one implementation, inductive heating is used to directly heat the rail, tie or other structure.
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Cited Art Landscape
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