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21 条记录 (耗时 0.01 秒)

    Rotary retardation devices
    1.
    发明授权
    Rotary retardation devices 失效
    旋转延迟装置

    公开(公告)号：US4497393A

    公开(公告)日：1985-02-05

    申请号：US327515

    申请日：1981-12-04

    申请人： John H. Brems

    发明人： John H. Brems

    IPC分类号： F16H39/22 ,  F16D31/06 ,  F16D35/00 ,  F16D57/00 ,  F16F9/10 ,  F16F9/12 ,  F16H49/00

    CPC分类号： F16F9/12 ,  F16F9/106 ,  Y10T464/50

    摘要： A rotary retardation device utilizing viscous fluid responsive to angular velocity in which the viscous fluid is retained in a cavity, one wall of which is a flexible deformable member, the fluid being sealed in the cavity, and a relatively movable rotary member bearing on the flexible member in a moving path to respond in rotation to the action of the viscous fluid in the cavity.

    摘要翻译： 一种旋转延迟装置，其利用响应于角速度的粘性流体，其中粘性流体保持在空腔中，其一个壁是柔性可变形构件，流体被密封在空腔中，以及可移动的旋转构件，其承载在柔性 移动路径中的构件在空腔中的粘性流体的作用下旋转地响应。

    Prevailing torque fastener
    10.
    发明授权
    Prevailing torque fastener 失效

    公开(公告)号：US5302067A

    公开(公告)日：1994-04-12

    申请号：US26683

    申请日：1993-03-05

    申请人： Jack Rath

    发明人： Jack Rath

    IPC分类号： B21K1/70 ,  F16B39/284 ,  F16H39/22

    CPC分类号： F16B39/284 ,  B21K1/707

    摘要： A prevailing torque fastener has a portion of the internal thread deformed from a circular cross-section to an approximately elliptical cross-section by a pair of die impressions on diametrically opposed sides of the exterior of the body. Each die impression is skewed from a plane normal to the axis of the fastener at an angle corresponding to the lead of the thread. Each die impression is made with a jaw having a central circular arc with a radius greater than the radius of the undeformed fastener. The opening between the jaws has a perimeter equal to the circumference of the undeformed fastener. Each edge of the die impression is at a predetermined elevation relative to the thread profile, preferably aligned with the crest of the thread. The location of the die impression is controlled by threading the fastener against a stop and crimping the fastener between jaws spaced a known distance from the stop.