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    • 67. 发明授权
    • Nut construction screw assembly and valve actuator utilizing same
    • 螺母结构螺丝组件和利用其的阀致动器
    • US3905271A
    • 1975-09-16
    • US44385674
    • 1974-02-19
    • PLASSON MAAGAN MICHAEL IND LTD
    • LECZYCKI MOSHE
    • F16B33/00F16B37/00
    • F16B33/006F16B37/00Y10S411/925Y10T137/7478
    • Described is a nut construction comprising a body member formed with a cylindrical bore and with a cut-out communicating with the bore and extending radially therefrom through one face of the body member. The cut-out intersects the bore along a pair of parallel planes substantially tangential to the bore and perpendicular to its transverse axis. The portion of the bore coextensive with the cut-out is formed with a plurality of spiral threads, and the portions of the bore extending through the ends of the body member are unthreaded. Also described is a screw formed with threads dimensioned to mate with the threads of the nut, and with unthreaded shank portions having outer diameters equal to or less than the respective bore portions of the nut. Further described is an actuator for a float type valve, in which the screw and nut assembly is used to preset the position wherein the float arm engages the valve operator.
    • 描述了一种螺母结构,其包括形成有圆柱形孔的本体构件,并且具有与孔连通并从其穿过主体构件的一个表面径向延伸的切口。 切口沿着一对基本上与孔相切并且垂直于其横向轴线的平行平面相交于孔。 与切口共同延伸的孔的部分形成有多个螺旋形螺纹,并且延伸穿过主体构件的端部的孔的部分是无螺纹的。