Railways: surface track – Deadening noise
Reexamination Certificate
2007-10-09
2007-10-09
Le, Mark T. (Department: 3617)
Railways: surface track
Deadening noise
Reexamination Certificate
active
10984588
ABSTRACT:
An elastomeric member is arranged beneath a railroad tie to adjust the modulus of track over a relatively stiff structure such as a bridge or tunnel. Methods or combinations that include an elastomeric member are employed to reduce the modulus of a track over a relatively stiff structure to a magnitude approximating the modulus of track over the terrain surrounding the structure.
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English Tom
Lucas, Jr. Joe
Putnam Dean
Chernoff Vilhauer McClung & Stenzel LLP
Le Mark T.
Northwest Rubber Extruders, Inc.
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