Railways
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 30, 1991
Grant Date -
N/A
app pub date -
Sep 18, 1989
filing date -
Sep 22, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A rail which has secured to it a composite body for absorbing vibrational energy whereby to reduce noise generated by vehicular traffic on the rail. The composite body comprises a visco-elastic damping medium 5 bonded to, and sandwiched between, both the rail and a constraining member, e.g. a steel strip 6, substantially stiffer in tension than the damping medium.
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Cited Art Landscape
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