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1. 发明授权

US5952072A Method for restoring used railroad ties and the restored railroad ties formed thereby 失效
标题翻译：用于恢复使用过的铁路连接的方法和由此形成的恢复的铁路连接
公开(公告)号：US5952072A
公开(公告)日：1999-09-14
申请号：US871121
申请日：1997-06-09
申请人： Scott Adams Colby , Robert Mark Loomis , Amy Laverne Clement
发明人： Scott Adams Colby , Robert Mark Loomis , Amy Laverne Clement
IPC分类号： B23P6/00 , E01B31/18 , B32B3/00
CPC分类号： E01B31/24 , B23P6/00 , Y10T428/20
摘要： This invention provides a method for restoring at least one means defining a railroad spike hole located in a used railroad tie. In this way, the restored railroad tie can be reused in subsequent rail replacement operations. The restored railroad tie is capable of having a railroad spike penetrate and be retained within the confines of the restored railroad spike hole without substantial bending problems. The used railroad tie provided has at least one spike hole located therein. In each the means defining a railroad spike hole is formed a polymeric plug. The polymeric plug comprises a substantially non-foaming, non-cellular polymeric material. The polymeric material preferably comprises a polyurethane. The polymeric plug infiltrates and tightly bonds with the railroad spike hole to prevent moisture infiltration. Thus, substantial tie rot due to moisture is impeded, and the leaky railroad spike hole is effectively and efficiently dammed to enable complete filling thereof. The polymeric plug is capable of penetration by and retention of the railroad spike therewithin.
摘要翻译：本发明提供一种用于恢复至少一个装置的方法，该装置限定位于所使用的铁路系带中的铁路钉钉孔。以这种方式，恢复的铁路系带可以在随后的铁路更换操作中重新使用。恢复的铁路系带能够穿过铁路钉，并保留在恢复的铁路钉孔的范围内，而没有实质的弯曲问题。所使用的铁路系带具有位于其中的至少一个钉孔。在每个定义铁路钉孔的装置中形成聚合物塞。聚合物塞包括基本上不发泡的非多孔聚合材料。聚合物材料优选包含聚氨酯。聚合物塞渗透并与铁钉钉孔紧密结合，以防止水分渗透。因此，阻碍了由于水分引起的实质性的结扎腐烂，并且有效地有效地阻止泄漏的铁路钉孔以使其能够完全填充。聚合物塞能够穿过并保持其中的铁路钉。

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