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| Number | Title | Issue Date |
| 7314182 | Extruded railroad tie for use with steel tie An extruded railroad tie comprising a bottom, a first side and a second side essentially opposite each other and extending from opposite ends of the bottom and a top surface shaped to receive and support the bottom of a steel tie. The extruded tie is useful for supp... | 01/01/2008 |
| 7011253 | Engineered railroad ties To increase the resistance of plastic and/or plastic composite railroad ties tosliding within the ballast of the railroad bed, for example, sliding lengthwise (in the direction of the longitudinal axis of the tie) and sideways (in the direction perpendicular to the ... | 03/14/2006 |
| 6237856 | Method for installing a steady rail track A method for installing a steady rail track, for which the concrete railroad ties, which carry the rails or auxiliary rails and the continuous reinforcement of which protrudes below out of the only partially constructed concrete casing, are preinstalled i... | 05/29/2001 |
| 6059199 | Road transportable segmental concrete railroad tie long-line production system A road transportable concrete railroad long-line tie molding system is described in which a rigid horizontal metal stressing frame is assembled from transportable sub-frame segments. The sub-frame segments are releasably connected in axially aligned end-t... | 05/09/2000 |
| 5540382 | Mud dispersement device for mounting underneath railway ties A pair of mud dispersement devices are deployed beneath a railroad tie and upon ballast material supporting the tie. Each device includes a flat elongated structure for underlying a half of the railroad tie and resting upon the ballast material supporting... | 07/30/1996 |
| 5314115 | Rail cross-tie for LIM transit system A rail tie has a pair of rail supporting portions disposed on opposite sides of a central portion. The central portion is elevated relative to the central portion and supports a reaction rail of a linear induction motor used to propel a vehicle along the ... | 05/24/1994 |
| 4236670 | Arrangement at a railroad crossing An arrangement at crossings between a road and a railway. Between the rails and the respective edges of the road structure and between the rails are arranged first and second slabs level at their top surfaces with the top surfaces of the rails and the top... | 12/02/1980 |
| 4204660 | Process of railroad tie concrete casting Apparatus for molding rail ties of the type which include one or more fastening devices embedded in the concrete of the type having a shoe plate which rests on the tie and a projecting tab part, the mold having plates, which are preferably removable inser... | 05/27/1980 |
