发明名称 Boot for streetcar rails
摘要 The extruded rubber boot is wrapped around the rail before the rail is placed in the ground. The boot provides electrical and mechanical isolation of the metal rail from the concrete of the pavement. The boot profile is configured with a double-wall column, which, when hammered in, becomes tightly wedged between the head and the base of the rail. Nothing else (such as adhesive tape wrapped around the boot) is needed in order to hold the boot to the rail during assembly and installation of the rail and pavement.
申请公布号 US2005023366(A1) 申请公布日期 2005.02.03
申请号 US20040873241 申请日期 2004.06.23
申请人 WILLIAMS FRANK DRAYTON;CHIEN BILL WEI SHIU 发明人 WILLIAMS FRANK DRAYTON;CHIEN BILL WEI SHIU
分类号 E01B19/00;(IPC1-7):E01B9/38 主分类号 E01B19/00
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