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1. 发明授权

US4713654A Shaft speed monitor 失效
公开(公告)号：US4713654A
公开(公告)日：1987-12-15
申请号：US835253
申请日：1986-03-03
申请人： Ralph S. Sweany
发明人： Ralph S. Sweany
IPC分类号： G01P1/10 , G01P3/484 , G01P13/00 , G01B21/00
CPC分类号： G01P13/00 , G01P1/10 , G01P3/484
摘要： An apparatus for monitoring and warning of an undesirable velocity condition in a rotating shaft includes a magnetic reed switch having on and off domains oriented with respect to an actuation magnet which is displaced on an outward radial path with respect to the shaft by centrifugal force, such that the actuation magnet can pass from within an on domain to within an off domain and vice versa, thereby switching the reed switch on and off according to the speed of rotation of the shaft. The reed switch is connected electrically to a warning light or buzzer or control circuit. An alternative embodiment employs a ferromagnetic shield variously interposed between the actuation magnet and the reed switch in response to centrifugal force.

2. 发明授权

US4811001A Shaft speed monitor 失效
标题翻译：轴速度监视器
公开(公告)号：US4811001A
公开(公告)日：1989-03-07
申请号：US120640
申请日：1987-12-18
申请人： Ralph S. Sweany
发明人： Ralph S. Sweany
IPC分类号： G01P1/10 , G01P3/484 , G01P13/00 , G01B21/00
CPC分类号： G01P1/10 , G01P13/00 , G01P3/484
摘要： An apparatus for monitoring and warning of an undesirable velocity condition in a rotating shaft includes a magnetic reed switch having on and off domains oriented with respect to an actuation magnet which is displaced on an outward radial path with respect to the shaft by centrifugal force, such that the actuation magnet can pass from within an on domain to within an off domain and vice versa, thereby switching the reed switch on and off according to the speed of rotation of the shaft. The reed switch is connected electrically to a warning light or buzzer or control circuit. An alternative embodiment employs a ferromagnetic shield variously interposed between the actuation magnet and the reed switch in response to centrifugal force.
摘要翻译：用于监测和警告旋转轴中不期望的速度状况的装置包括磁簧开关，其具有相对于致动磁体取向的开和关磁畴，该致动磁体通过离心力相对于轴相对于轴向外径向路径移位，致动磁体可以在一个域内通过一个离域，反之亦然，从而根据轴的旋转速度切换簧片开关。簧片开关电连接到警告灯或蜂鸣器或控制电路。替代实施例采用铁磁屏蔽，其响应于离心力而不同地介于致动磁体和舌簧开关之间。

3. 发明授权

US4758825A Shaft speed monitor 失效
标题翻译：轴速度监视器
公开(公告)号：US4758825A
公开(公告)日：1988-07-19
申请号：US110325
申请日：1987-10-20
申请人： Ralph S. Sweany
发明人： Ralph S. Sweany
IPC分类号： G01P1/10 , G01P3/484 , G01P13/00 , G01B21/00
CPC分类号： G01P1/10 , G01P13/00 , G01P3/484
摘要： An apparatus for monitoring and warning of an undesirable velocity condition in a rotating shaft includes a magnetic reed switch having on and off domains oriented with respect to an actuation magnet which is displaced on an outward radial path with respect to the shaft by centrifugal force, such that the actuation magnet can pass from within an on domain to within an off domain and vice versa, thereby switching the reed switch on and off according to the speed of rotation of the shaft. The reed switch is connected electrically to a warning light or buzzer or control circuit. An alternative embodiment employs a ferromagnetic shield variously interposed between the actuation magnet and the reed switch in response to centrifugal force.
摘要翻译：用于监测和警告旋转轴中不期望的速度状况的装置包括磁簧开关，其具有相对于致动磁体取向的开和关磁畴，该致动磁体通过离心力相对于轴相对于轴向外径向路径移位，致动磁体可以在一个域内通过一个离域，反之亦然，从而根据轴的旋转速度切换簧片开关。簧片开关与警告灯或蜂鸣器或控制电路电连接。替代实施例采用铁磁屏蔽，其响应于离心力而不同地介于致动磁体和舌簧开关之间。

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