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| Number | Title | Issue Date |
| 7185860 | Tongue switch A modular tongue switch assembly comprises a tongue pivotally connected to a slide surface, held down by a pivot retainer. The slide surface consists of slide plate sections removably attached to corresponding bed plate sections, which are in turn welded onto a base... | 03/06/2007 |
| 7121513 | Cross frog for a set of track points, provided with an end of position-retaining device A rail switch frog (1) includes a movable frog point (5) slidingly guided within a base frame (2), which frog point is movable into abutment on the wing rails (6, 7) and laterally supported in its abutment positions by supporting elements... | 10/17/2006 |
| 6994299 | Railroad crossing apparatus having improved rail connection and improved flangeway floor geometry and method incorporating the same An improved railroad frog, and method incorporating the same, for facilitating the intersection of rail lines in a more efficient, effective, and durable manner. In one aspect the invention is a railroad frog apparatus comprising: a body having flangeways that inter... | 02/07/2006 |
| 5618013 | Movable point for a crossing frog for railway apparatus of very great length, incorporated in long welded rails A movable point for a crossing frog for railway apparatus of great length, incorporated in long welded rails. The point (7) is comprised of a single steel element, which comprises integral seating cross members (8). The rigidity of the point varies along ... | 04/08/1997 |
| 5366184 | Seat for the movable point in a cradle of a crossing frog incorporated in long welded rails and process for the production of such a seat The present invention relates to a seat for the movable point in a cradle of a crossing frog incorporated in long welded rails and the process for production of such a seat. The seat is characterized in that the connection between the movable point (1) an... | 11/22/1994 |
| 5184791 | Frog tip that can be shifted relative to the wing rails A frog tip that can be moved relative to the wing rail is proposed, in which the contact surfaces each curve away from the frog tip and the wing rails in a lengthwise direction.... | 02/09/1993 |
| 5133522 | Process for producing a crossing frog with a moving point A process for producing a crossing frog with moving point (1) for very long railway switches incorporated in long welded rails. The frog also comprises a cradle (2) in two elements (3 and 4), one molded and the other not molded. The method comprises weldi... | 07/28/1992 |
| 5082214 | Crossing frog with a moving point A crossing frog with moving point (1) for very long railway switches incorporated in long welded rails, comprises a cradle (2) in two elements (3 and 4), one molded and the other not molded. One element (3) is of molded steel, of which at least the two en... | 01/21/1992 |
| 5042755 | Process for producing a crossing frog with a moving point A process for producing a crossing frog with moving point (1) for very long railway switches incorporated in long welded rails. The frog also comprises a cradle (2) in two elements (3 and 4), one molded and the other not molded. The element (3) is of mold... | 08/27/1991 |
| 4953814 | Railway switch comprising a frog having a movable main point and auxiliary point In a railway switch comprising a frog having a movable main and auxiliary point, the main and auxiliary point are formed by using thick-web standard rail sections and asymmetric tongue profiles of smaller height as compared with the thick-web standard rai... | 09/04/1990 |
