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    • 2. 发明授权
    • Steel fastener having grooved shank
    • 具有开槽柄的钢制紧固件
    • US5741104A
    • 1998-04-21
    • US869483
    • 1997-06-05
    • Geronimo E. LatWilliam L. GabrielHenry A. Sygnator, deceasedHenry W. SchniedermeierFrederick A. Kish
    • Geronimo E. LatWilliam L. GabrielHenry A. Sygnator, deceasedHenry W. SchniedermeierFrederick A. Kish
    • F16B15/00F16B15/06F16B15/08
    • F16B15/0092Y10S411/903Y10S411/922
    • A steel fastener has an elongate shank, an enlarged head formed at one end of the shank, and a generally pointed tip formed at the other end of the shank. A grooved portion of the shank is formed with helical grooves defining helical ribs and with annular grooves defining annular rings. The shank has a cylindrical portion between the grooved portion and the tip and a cylindrical portion between the grooved portion and the head. Each of the annular grooves has a root where deepest and each of the annular rings has a crest where largest. The roots define an imaginary cone diverging toward the tip. The crests define an imaginary cone converging toward the tip. The shank has an exterior surface coated with a polymeric coating, which is formed from an aqueous composition containing a water-based acrylic resin and a water-based polyurethane resin. A zinc layer and a chromate conversion layer are provided between the polymeric coating and the exterior surface of the shank.
    • 钢制紧固件具有细长的柄,形成在柄的一端的扩大的头部,以及形成在柄的另一端的大致尖的尖端。 柄的开槽部分形成有限定螺旋肋的螺旋槽和限定环形环的环形槽。 柄部在开槽部分和尖端之间具有圆柱形部分,并且在凹槽部分和头部之间具有圆柱形部分。 每个环形槽具有最深的根部,并且每个环形环具有最大的波峰。 根部定义了朝向尖端发散的假想锥体。 波峰限定了朝向尖端收敛的假想锥。 柄部具有涂覆有由包含水基丙烯酸树脂和水基聚氨酯树脂的水性组合物形成的聚合物涂层的外表面。 在聚合物涂层和柄的外表面之间提供锌层和铬酸盐转化层。
    • 8. 发明授权
    • Elastomeric pad between railroad rail and railroad tie
    • 铁路轨道和铁路系带之间的弹性垫
    • US5551632A
    • 1996-09-03
    • US472303
    • 1995-06-07
    • Frederick A. KishHerbert S. GolinkinDaniel C. Abt
    • Frederick A. KishHerbert S. GolinkinDaniel C. Abt
    • E01B9/68E01B9/62
    • E01B9/681E01B9/683E01B9/685
    • In a railroad track comprising a railroad rail having a lower flange, a railroad tie made from concrete, and a polyurethane pad mounted between the lower flange of the railroad rail and an upper surface of the railroad tie, a particulate layer is interposed between the polyurethane pad and the railroad tie and comprises particles bonded to the polyurethane pad. Preferably, the bonded particles are polycarbonate, acrylic, or nylon particles, either granules or fibers. Alternatively, the bonded particles are particles of quartz, silica sand, silicon carbide, or aluminum oxide. An adhesive layer is interposed between the polyurethane pad and the railroad tie, comprises a methacrylate ester composition, and is bonded to particles among the bonded particles and to the railroad tie, whereby the polyurethane pad and the railroad tie are bonded to one another via the particulate and adhesive layers.
    • 在包括具有下凸缘的铁路轨道的铁路轨道,由混凝土制成的铁路连接件以及安装在铁路轨道的下凸缘和铁路连接件的上表面之间的聚氨酯垫片之间,在聚氨酯 垫和铁路系带,并且包括结合到聚氨酯垫的颗粒。 优选地,粘合颗粒是聚碳酸酯,丙烯酸或尼龙颗粒,颗粒或纤维。 或者,粘合颗粒是石英,硅砂,碳化硅或氧化铝的颗粒。 粘合剂层介于聚氨酯垫和铁路连接件之间,包括甲基丙烯酸酯组合物,并且粘合到粘结颗粒和铁路连接件之间的颗粒上,由此聚氨酯垫和铁路连接件通过 颗粒和粘合剂层。