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    • 57. 发明申请
    • Ratchet interlocking housing
    • 棘轮互锁外壳
    • US20050016115A1
    • 2005-01-27
    • US10651280
    • 2003-08-28
    • Thomas Shain
    • Thomas Shain
    • F16B21/06F16B37/00E04C5/00
    • F16B37/00F16B21/065
    • A fastener, such as a housing, for mounting to a structure, such as a panel, that has an aperture formed therethrough. The fastener includes a shank member and an annular nut member that is configured to align coaxially with the shank member. The shank member is inserted through aperture in the structure and the nut member is placed on the shank member. Teeth on the radially outwardly facing surface of the shank member engage a pawl, such as one or more teeth, on the radially inwardly facing surface of the nut member to lock the nut member to the shank member. Removal of the nut member is effected by rotating the nut member to disengage the pawl from the teeth, thereby permitting longitudinal displacement of the nut member off of the shank member.
    • 用于安装到诸如面板的结构的紧固件,例如壳体,其具有穿过其形成的孔。 紧固件包括柄构件和环形螺母构件,其构造成与柄构件同轴地对准。 柄构件通过结构中的孔插入,并且螺母构件被放置在柄构件上。 在柄构件的径向向外的表面上的牙齿在螺母构件的径向向内的表面上接合棘爪,例如一个或多个齿,以将螺母构件锁定到柄构件。 螺母构件的移除是通过旋转螺母构件来实现的,以使棘爪与齿脱离,从而允许螺母构件从柄构件的纵向移位。
    • 58. 发明申请
    • Piping clamp for concrete form
    • 混凝土管道夹具
    • US20050016113A1
    • 2005-01-27
    • US10626474
    • 2003-07-23
    • Robert Nicholson
    • Robert Nicholson
    • E04G21/18E04C5/00
    • E04G21/185
    • A piping clamp for holding a pipe to a concrete form. The piping clamp includes a base having a vertical standoff and a spring clamp extending horizontally from the base. The vertical standoff prevents the spring clamp from contacting the top surface of a poured concrete structure, thus allowing workers to trowel the concrete's surface without interfering with the clamp. In addition, a web portion of the spring clamp acts as a horizontal standoff and precludes a clamped piping run from coming into contact with the concrete form. The base may include a plurality of staggered fastener openings facilitating adjustment of the piping clamp during installation. In use, the spring clamp removably secures a piping run to a concrete form until the concrete form is removed. During removal, the spring clamp allows the piping run and the concrete form to be easily separated without disturbing the piping run.
    • 用于将管道保持为混凝土形式的管道夹具。 管道夹具包括具有垂直支座的底座和从基座水平延伸的弹簧夹。 垂直间隔防止弹簧夹与浇注的混凝土结构的顶面接触,从而允许工人在不干扰夹具的情况下抹去混凝土的表面。 此外,弹簧夹的腹板部分作为水平支座,并排除夹紧的管道与混凝土的形式接触。 基座可以包括多个交错的紧固件开口,其有助于在安装期间调节管道夹具。 在使用中,弹簧夹可拆卸地将管道运行固定为混凝土形式,直到混凝土形式被移除。 在拆卸过程中,弹簧夹允许管道运行和混凝土形式容易分离,而不会影响管道运行。
    • 60. 发明授权
    • Fibers having improved sinusoidal configuration, concrete reinforced
therewith and related method
    • 纤维具有改善的正弦结构,混凝土增强及相关方法
    • US5981630A
    • 1999-11-09
    • US6970
    • 1998-01-14
    • Nemkumar BanthiaRichard E. HingsonAshish Dubey
    • Nemkumar BanthiaRichard E. HingsonAshish Dubey
    • C04B16/06D01D5/22E04C5/07E04C5/00B32B27/00
    • E04C5/073Y10T428/12431Y10T428/2913Y10T428/2922Y10T428/2924Y10T428/2925Y10T428/2933Y10T428/2938Y10T428/2947Y10T428/2978Y10T428/298
    • Fiber additives for addition to proportioned concrete comprise a plurality of thermoplastic fibers having a profile geometry defined by the equation, ##EQU1## wherein the amplitude a.sub.0 falls within a range of from about 0.1 d.sub.f to 2.0 d.sub.f and the period .lambda. falls within a range of from about 2 d.sub.f to 15 d.sub.f for fibers having a diameter d.sub.f of from about 0.5 to about 1 mm; the peak pull-out stress .sigma..sub.peak and the specific pull-out energy absorbed to a maximal displacement of 7.5 mm .psi..sub.peak, both increase linearly with a deformity factor defined by the equation, ##EQU2## where .alpha.=0.8 and .beta.=-1, such that the peak pull-out stress is defined by the equation, ##EQU3## and the specific pull-out energy is defined by the equation, ##EQU4## the fiber additives having an optimimum deformity,D.sub.optimum .apprxeq.(0.5 to 1)D.sub.critical,D.sub.critical being that deformity where the ultimate tensile strength of the fiber equals k.sub.1 D.sub.critical +C, and where loads are measured in N; energy in N-mm; length dimensions are in mm, and the values of k.sub.1, k.sub.2, C and C.sub.1 are determined based upon the ultimate tensile strength of the fiber and by plotting deformation versus pull-out stress to obtain the value for D.sub.critical. The present invention also provides concrete having improved crack resistance and a method for improving the bond slip performance of fibers in concrete utilizing the sinusoidally configured fibers of the present invention.
    • 用于加入成比例的混凝土的纤维添加剂包括具有由等式限定的轮廓几何形状的多个热塑性纤维,其中振幅a0在约0.1df至2.0df的范围内,并且周期λ落在约2的范围内 df至15df,其直径df为约0.5至约1mm; 峰值拉出应力σ峰值和吸收到最大位移7.5 mm psi峰值的特定拉出能量都随着α= 0.8和β= -1等式定义的畸变因子线性增加,从而 峰值拉出应力由方程定义,具体拉出能量由方程定义,纤维添加剂具有最佳畸形,最佳约(0.5-1)D临界,Dcritical为极限拉伸 纤维的强度等于k1 Dcritical + C,并且其中负载在N中测量; 能量在N-mm; 长度尺寸为mm,k1,k2,C和C1的值基于纤维的极限拉伸强度和绘制变形对拉拔应力来确定,以获得Dcritical值。 本发明还提供了具有改进的抗裂性的混凝土,以及利用本发明的正弦构造的纤维来提高混凝土中纤维的粘合滑移性能的方法。