Railways: surface track – Deadening noise
Reexamination Certificate
2006-09-05
2006-09-05
Le, Mark T. (Department: 3617)
Railways: surface track
Deadening noise
C238S264000, C238S283000
Reexamination Certificate
active
07100837
ABSTRACT:
A rail seat which includesa) a rail tieb) a pair of rail fastening support shoulders mounted on said rail tie so that a rail can be held to the tie between said shoulders each shoulder having a a rail face and side portions on each side of said rail face extending away from the railc) a rail pad adapted to lie on said tie between said shoulders which has a pair of projections extending parallel to the tie along side each side portion of each shoulder.The rail seat is adapted to be used with a deep post insulator and incorporates a rib on the support shoulder extending from each side portion against which a face of the rail pad projections abut to locate the pad in position to accommodate the post of the insulator. The rail pad projections are proportioned to prevent the pad from moving out of position under the creep load conditions present when rail cars pass over the rail seat. A resilient tab is provided on each projection to abut the side portions of the support shoulder to retain the pad in position between the support shoulders during transport of the rail tie to the installation site.
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patent: WO 98/13550 (1998-04-01), None
patent: WO 02/31264 (2002-04-01), None
AirBoss Railway Products Inc.
Connolly Bove Lodge & Butz LLP
Le Mark T.
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