发明授权
- 专利标题: Composite pad useful between railroad rail and railroad tie
- 专利标题(中): 复合垫用于铁路轨道和铁路系带之间
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申请号: US333522申请日: 1994-11-02
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公开(公告)号: US5549245A公开(公告)日: 1996-08-27
- 发明人: Frederick A. Kish
- 申请人: Frederick A. Kish
- 申请人地址: IL Glenview
- 专利权人: Illinois Tool Works Inc.
- 当前专利权人: Illinois Tool Works Inc.
- 当前专利权人地址: IL Glenview
- 主分类号: E01B9/68
- IPC分类号: E01B9/68 ; E01B9/62
摘要:
In a railroad track, a composite pad is useful between a lower flange of a railroad rail and an upper surface of a railroad tie, particularly but not exclusively a concrete tie. The composite pad comprises a bonding member, preferably a plate made from galvanized, powder-coated steel and a polyurethane pad. Such a plate, if used, may be powder-coated with a composition comprising a polyester, acrylic, or epoxy resin. The pad is cast onto the member so that the member is bonded directly to the pad. An adhesive layer comprising a methacrylate ester composition bonds the member to the upper surface of the tie, at the lower surface of the member, so as to resist relative movement between the member and the tie and so as to retard infiltration of sand, water, or debris therebetween.
公开/授权文献
- US4896664A Snorkel 公开/授权日:1990-01-30