发明名称 SHALLOW FLANGEWAY RAIL SEAL
摘要 A rail seal for sealing the gap between a rail and a concrete panel in a railroad crossing so as to provide a generally even or level surface for vehicular or pedestrian traffic while still providing an appropriate rail structure for receiving and guiding the train wheels along the tracks is provided. More particularly, the upper surface of the rail seal is formed with a recessed portion or flangeway for receiving the flanged-end of a train. The flangeway or recessed portion, however, is formed so that the surface of the flangeway lies in a plane above the bottom of the rail head but below the upper surface of the rail head, thereby providing a“shallow”flangeway. The provision of a“shallow”flangeway helps to reduce the risks associated with vehicular and/or other pedestrian traffic that must access or cross the railroad tracks. Specifically, the shallow flangeway helps to prevent the heels of pedestrian shoes or the smaller width bicycle, stroller or wheelchair wheels from becoming trapped in the gaps typically associated with railroad crossing structures.
申请公布号 US2012000987(A1) 申请公布日期 2012.01.05
申请号 US20100826761 申请日期 2010.06.30
申请人 BURKHARDT BRUCE E.;ELLIS RICHARD T.;POLYCORP INC. 发明人 BURKHARDT BRUCE E.;ELLIS RICHARD T.
分类号 E01B21/00 主分类号 E01B21/00
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