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"That’s an amazing invention, but who would ever want to use one of them?"
President Rutherford B. Hayes ; Said in 1876, after Alexander Graham Bell demonstrated the telephone to him at the White House
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| Number | Title | Issue Date |
| 7225966 | Welded joints with polymer sealant An assembly, such as an aircraft component, is formed with a weld joint by, for example, using friction stir welding, FSW, to form a lap joint between a stiffer and the interior surface of the skin of the component. A sealant layer, such as a monomer sealant/adhesiv... | 06/05/2007 |
| 7188817 | Molded deck board A plastic molded deck board provides a sturdy, durable, lightweight, economical, readily identifiable, and easily handled surface for supporting cargo on top of trailer load beams. The deck board defines a platform having a top face for supporting cargo, a bottom fa... | 03/13/2007 |
| 7040452 | Device for distributing lubricants in grooved rails The invention is directed to a device for distributing lubricants in grooved rails, particularly for railborne urban traffic. An elongated plate is provided which can be arranged in the groove of the rail and which is provided with cutouts at least along one longitu... | 05/09/2006 |
| 6427925 | Prefabricated railway track system A system for embedding a pair of rails of a railway track comprises a pair of field panels adapted for positioning opposite each other at outer sides of the rails and a gauge panel adapted for positioning between the rails. Each field panel has a side sur... | 08/06/2002 |
| 5609294 | Railroad track assembly and method A structural arrangement for an embedded and sealed railroad track and a method for its installation to provide a gutter defined along the rails of such a railroad track extending along or across a street or highway with rail tops at pavement level. Rubbe... | 03/11/1997 |
| 5577662 | Embedded railway track system A pair of rails are secured on a plurality of perpendicularly disposed ties which rest on a ballast material. A gauge panel is disposed between the rails and has a top surface which is substantially the same height as the rails. Field inserts are position... | 11/26/1996 |
| 5535947 | Embedded railway track system A pair of rails are secured on a plurality of perpendicularly disposed ties which rest on a ballast material. A gauge panel is disposed between the rails and has a top surface which is substantially the same height as the rails. Field inserts are position... | 07/16/1996 |
| 5513797 | Installation of rail tracks in roadways A track rail having a groove for flanges of rail vehicle track wheels in an upper surface of the rail and having a central bar portion and flanges extending integrally sideways from the top of the bar portion is inserted in a recess preformed in the roadw... | 05/07/1996 |
| 5503082 | Load-bearing rail and floor system having slotted rails embedded in concrete for the reception of machine mounts or railcar wheels A concrete-embedded, machinery-anchoring floor system includes parallel, accurately-extruded steel rails each having a unique cross-sectional configuration. Vertical loading of the rails improves the load-bearing strength of the concrete, whether the load... | 04/02/1996 |
| 5285964 | Method for constructing a railroad in concrete having vertical and lateral adjustment steps prior to concrete pouring The method relates to the laying of rails in a trench into which concrete is subsequently poured in order to fasten the rails. The method consists in laying adjustable-length ties (4) on the bottom of the trench (3), in roughly positioning the rails (14, ... | 02/15/1994 |
| 4899932 | Capped highway grade crossing An improved highway grade crossing for railroad tracks. The crossing is comprised of a plurality of wood panels which are capped with an expanded polymer. The polymer provides a wear surface for the crossing which can be replaced without having to take up... | 02/13/1990 |
| 4457468 | Railroad grade crossing construction A railroad grade crossing structure comprising a plurality of prefabricated, elongated, reinforced concrete panels formed of used, inverted rail sections placed between the rails of each track and outside the rails of each track to provide a smooth durabl... | 07/03/1984 |
| 4445640 | Highway railway crossing and cap therefor A crossing construction for a railway including a plurality of spaced-apart cross-ties that support two parallel rails positioned thereon. The crossing includes a center pad of resilient rubber-like material positioned between the rails. A side pad of res... | 05/01/1984 |
| 4267969 | Railroad grade crossing construction A railroad grade crossing structure comprising a plurality of prefabricated, elongated, reinforced concrete panels formed of used, inverted rail sections placed between the rails of each track and outside the rails of each track to provide a smooth durabl... | 05/19/1981 |
| 4266718 | Modularized railway crossing grade and modules therefor A module for cooperative installation with a plurality of similar modules proximate a set of railway tracks, and borne upon support members therefor to yield a modularized railway crossing grade assembly, is comprised of a hollow form having exterior side... | 05/12/1981 |
| 4176789 | Railroad grade crossing platform and an end capping device therefor The exposed ends of railroad grade crossing platforms are protectively capped with elongate devices which provide ramps sloping downwardly and away from the surface of the platforms along the ends of the grade crossing. The ramps deflect air hoses, chains... | 12/04/1979 |
