发明名称 |
Visual indicator device for proximity sensor |
摘要 |
A device for visually indicating a change in the operational state of a proximity sensor. The device includes a transparent housing having a cavity and a magnet device for generating a magnetic field. In addition, a sleeve is attached to the housing. The magnet device is concealed within the sleeve in a first position to indicate a first operational state. When a target is positioned adjacent the sensor end, magnetic attraction occurs between the target and the magnet device due to the magnetic field to cause movement of the magnet device to a second position within the cavity wherein the magnetic field does not act on the proximity sensor to change the operational state from the first operational state to a second operational state. Further, the magnet device is visible in the second position to indicate the second operational state. The target is attached to a moving element of the valve such as a valve stem such that a change in operational state of the proximity sensor corresponds to a change in operational state of the valve. |
申请公布号 |
US8890512(B2) |
申请公布日期 |
2014.11.18 |
申请号 |
US201113155826 |
申请日期 |
2011.06.08 |
申请人 |
Pentair Flow Services AG |
发明人 |
Minervini Leo;Connell Kevin |
分类号 |
G01B7/14 |
主分类号 |
G01B7/14 |
代理机构 |
Quarles & Brady LLP |
代理人 |
Quarles & Brady LLP |
主权项 |
1. A device for indicating an operational state of a proximity sensor having a sensor end, comprising:
a transparent housing having a cavity; a magnet device for generating a magnetic field; a sleeve attached to the housing,
wherein the magnet device is concealed within the sleeve in a first position to indicate a first operational state wherein when a target is positioned adjacent the sensor end,magnetic attraction occurs between the target and the magnet device due to the magnetic field to cause movement of the magnet device to a second position within the cavitywherein the magnetic field does not act on the proximity sensor to change the operational state from the first operational state to a second operational state andwherein the magnet device is visible in the second position to indicate the second operational state. |
地址 |
Schaffhausen CH |