发明名称 Expansion insert for sleeper screws
摘要 <p>Spreading device (4) made of a bent rod material for rail screws has a first and a second arm (41) running at least approximately horizontally to each other and connected via a web (43), and a third arm (42) connected to the second arm via a bend (44). The third arm has a free end (46) forming an at least approximately linear extension of the third arm. Preferred Features: The spreading device is made in one piece from a rod material. The free end of the third arm forms a linear extension of the third arm.</p>
申请公布号 EP1449961(A2) 申请公布日期 2004.08.25
申请号 EP20040405227 申请日期 2004.04.14
申请人 SERSA AG 发明人 SCHNYDER, KONRAD
分类号 E01B9/14;F16B13/00;(IPC1-7):E01B9/14 主分类号 E01B9/14
代理机构 代理人
主权项
地址