Elastomeric pad between railroad rail and railroad tie
    1.
    发明授权
    Elastomeric pad between railroad rail and railroad tie 失效
    铁路轨道和铁路系带之间的弹性垫

    公开(公告)号:US5551632A

    公开(公告)日:1996-09-03

    申请号:US472303

    申请日:1995-06-07

    IPC分类号: E01B9/68 E01B9/62

    CPC分类号: E01B9/681 E01B9/683 E01B9/685

    摘要: 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.

    摘要翻译: 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。

    Coated fastener
    2.
    发明授权
    Coated fastener 失效
    涂层紧固件

    公开(公告)号:US5441373A

    公开(公告)日:1995-08-15

    申请号:US116758

    申请日:1993-09-07

    IPC分类号: F16B15/08 F16B15/00

    CPC分类号: F16B15/0092 Y10S411/903

    摘要: A coated fastener includes a coating comprised of one-hundred percent dry solids which is virtually free of solvent emissions when applied and during curing, covers substantially the entire exterior of the fastener, provides a protective coating to the fastener against corrosion, enables the fastener to be adhered to at least one other fastener, and provides increased holding power of the fastener after the fastener is driven into a desired surface.

    摘要翻译: 涂覆的紧固件包括由百分之一百的干固体组成的涂层,其在施加时和固化期间基本上不含溶剂排放物,基本上覆盖紧固件的整个外部,为紧固件提供防腐蚀的保护涂层, 粘附到至少一个其他紧固件,并且在将紧固件驱动到期望的表面之后提供紧固件的增加的保持力。

    Method of reinforcing the roof of a building against hurricane-force
winds
    5.
    发明授权
    Method of reinforcing the roof of a building against hurricane-force winds 失效
    加强建筑物屋顶抵抗飓风强风的方法

    公开(公告)号:US5890327A

    公开(公告)日:1999-04-06

    申请号:US756954

    申请日:1996-12-02

    CPC分类号: E04B7/02 E04G23/0218 E04H9/14

    摘要: A method of reinforcing or retrofitting building roof structures against hurricane-force winds which does not require removal of part or all of the roof. The improved method includes directing a thin stream of a liquid polymer foam adhesive under pressure upwardly along the intersections of the rafters or support members and the roof panels, preferably on both sides of the support members. The foam adhesive then creams and foams, forming polymer foam adhesive gussets which firmly adhere to the adjacent surfaces of the support members and roof panels. This method increases the pull-off strength of a roof about seven fold and is able to withstand hurricane-force winds.

    摘要翻译: 一种加强或改造建筑物屋顶结构以抵抗飓风强风的方法,不需要拆除部分或全部屋顶。 改进的方法包括沿着椽子或支撑构件和顶板的交叉点向上压力的液体聚合物泡沫粘合剂的薄流引导,优选地在支撑构件的两侧。 泡沫粘合剂然后是奶油和泡沫,形成聚合物泡沫粘合剂角撑板,其牢固地附着到支撑构件和屋顶板的相邻表面。 这种方法将屋顶的脱落强度提高了七倍,能够承受飓风强风。

    Method for electrostatic powder coating of fasteners magnetically
suspended from a conveyor
    6.
    发明授权
    Method for electrostatic powder coating of fasteners magnetically suspended from a conveyor 失效
    从传送带磁悬浮的紧固件的静电粉末涂覆方法

    公开(公告)号:US5476689A

    公开(公告)日:1995-12-19

    申请号:US309062

    申请日:1994-09-20

    CPC分类号: B05B5/082 B05B13/0264

    摘要: A continuous, automated method and apparatus for transporting and electrostatically powder coating articles such as fasteners. Articles in an unoriented state are oriented one behind another, transferred in succession to and magnetically retained on a face of a rotating feed wheel at a first position with respect to the feed wheel, transported to a second position by rotation of the feed wheel, transferred in succession at the second position to a respective portion of a moving conveyor, and releasably suspended magnetically and electrically grounded at the respective portion of the conveyor. Magnets used to suspend the articles from the conveyor are shielded from direct contact with the articles to avoid coating the magnets. While the articles remain suspended magnetically from the conveyor by their end portions, they are conveyed through a coating booth where they are electrostatically powder coated.

    摘要翻译: 用于运输和静电粉末涂覆制品如紧固件的连续,自动化的方法和装置。 未定向状态的物品一个接一个地定向,相对于进给轮在第一位置上相继传递并且磁力地保持在旋转进给轮的表面上,并通过馈送轮的转动被传送到第二位置 在第二位置处连续地移动到移动的输送机的相应部分,并且可释放地悬挂在输送机的相应部分处磁性地和电气地接地。 用于将物品从输送机悬挂的磁铁被遮蔽以免与物品直接接触,以避免涂覆磁体。 当物品通过它们的端部从输送机磁力悬挂时,它们被传送通过涂覆室,在那里它们被静电粉末涂覆。

    Corrosion and split resistant plastic materials
    9.
    发明授权
    Corrosion and split resistant plastic materials 失效
    防腐和分裂塑料材料

    公开(公告)号:US4963430A

    公开(公告)日:1990-10-16

    申请号:US294325

    申请日:1989-01-06

    IPC分类号: C08J5/18 C08L67/02

    摘要: A flexible oriented plastic sheet of high tensile strength and which is resistant to corrosion and highly resistant to splitting when penetrated by a pointed article. The flexible oriented sheet of the invention can be cut into desired shapes and sizes so as to be useful in a variety of applications, such as roofing batten bars and fencing materials, which require high resistance to splitting and fastener pull-through. The sheets are produced by melt extruding and orienting a composition comprising a major amount of polyethylene terephthalate (PET) and a minor amount of a polyolefin, preferably polypropylene.

    Steel fastener having grooved shank
    10.
    发明授权
    Steel fastener having grooved shank 失效
    具有开槽柄的钢制紧固件

    公开(公告)号:US5741104A

    公开(公告)日:1998-04-21

    申请号:US869483

    申请日:1997-06-05

    IPC分类号: F16B15/00 F16B15/06 F16B15/08

    摘要: 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.

    摘要翻译: 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。