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1. 发明授权

US4619437A Adjustable torque limiting valve handle 失效
标题翻译：可调节限位阀手柄
公开(公告)号：US4619437A
公开(公告)日：1986-10-28
申请号：US823670
申请日：1986-01-29
申请人： William J. Williams , Richard E. Purkey
发明人： William J. Williams , Richard E. Purkey
IPC分类号： F16K31/60 , F16K31/44
CPC分类号： F16K31/60 , Y10T403/253
摘要： Disclosed is a torque limiting valve handle having one more independently adjustable spring loaded balls urged in contact with depressions formed in the inside surface of a housing adapted for external manual engagement. The adjustment of the torque limit setting of the valve handle is protected from tampering or inadvertent modification by unauthorized personnel by the access to the adjustment requiring disassembly of the parts. One embodiment provides a torque lock in one direction of rotation. Another embodiment provides a torque limit override feature in either direction of rotation by an axial displacement of the housing of the handle with respect to an adaptor fixedly secured to the valve stem of the valve to which it is secured.
摘要翻译：公开了一种扭矩限制阀手柄，其具有一个可独立调节的弹簧加载的球，所述弹簧加载的球被迫与形成在适于外部手动接合的壳体的内表面中的凹陷相接触。通过进入需要拆卸零件的调整，可以保护阀门手柄的转矩限制设置的调整，以免受到未经授权的人员的篡改或无意的修改。一个实施例提供了在一个旋转方向上的扭矩锁定。另一个实施例通过手柄的壳体相对于固定地固定到其所固定的阀的阀杆的适配器的轴向位移而在任一方向上提供扭矩极限超驰特征。

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