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| Number | Title | Issue Date |
| 5560300 | Skate train To provide a railroad car design that allows the car to travel at high speeds over current roadbeds at very low fuel costs per mile a special rail is formed. This rail has the form of a wave shaped on its top with the troughs and crests of the wave repeat... | 10/01/1996 |
| 5365856 | Coil transportation system A coil transportation system includes air cushion vehicles guided for traveling along a travel path comprising straight lines and curves. Each vehicle comprises mechanical side guides at its longitudinal right and left hand sides. The side guides are actu... | 11/22/1994 |
| 5261331 | Propulsion device for a train intended for renewal of railway tracks utilizing rail grippers to supply propulsion thrust A propulsion device for a rail vehicle, such as a railway train, applies power for propulsion directly between the frame of the vehicle and the rails without intervention of wheels. The device includes articulated members for connecting the frame of the v... | 11/16/1993 |
| 4715761 | Universal floor mounted pipe handling machine A pipe handling machine having vertical tracks mounted on a rotatable base. A carriage is mounted on the vertical tracks for vertical movement. A multisection telescoping boom is mounted on the carriage, and a pipe-engaging head is mounted on the end of t... | 12/29/1987 |
| 4014266 | Transport track and sliding carriage for moving heavy loads A transport track and a sliding carriage for transporting heavy loads in substantially horizontal direction. The track comprising a bottom plate intended to be positioned loosely on a support capable to bear heavy loads. The upper surface of the plate and... | 03/29/1977 |
